How much percentage does your battery use in standby with edge and airplane mode (no connections)
Kumar's Rom V2.1 Premium
Radio: 2.11.50.20
Standby with only edge and I loose 10% in 8 hours.
Standby airplane mode I loose 8% in 8 hours.
Leave your phone on standby all night and post your results
dy2k said:
How much percentage does your battery use in standby with edge and airplane mode (no connections)
Kumar's Rom V2.1 Premium
Radio: 2.11.50.20
Standby with only edge and I loose 10% in 8 hours.
Standby airplane mode I loose 8% in 8 hours.
Leave your phone on standby all night and post your results
Click to expand...
Click to collapse
I'll test it tonight and let you how. However, I would expect it to drain slower than that in airplane mode, especially if the screen is left off. I put my TP2 in airplane mode to do the same test back when I first got my HD2, and the battery lasted for over 17 days before dying
Yeah.
I think I shall alternate radios and post results. But I don't think I would get different results if its in airplane mode due that it won't be looking for a signal. But who knows maybe it makes a difference.
I would think it would last a very long time, maybe over a week between charges if it was in airplane mode, and in sleep mode the entire time.
In sleep mode the CPU should be in a suspended mode, maybe waking occasionally to check for things like upcoming appointments. The only thing really consuming power would be the RAM. the type of RAM could extend the battery even more. DRAM has to be constantly refreshed, so you have the RAM chips and memory controller eating up power refreshing it constantly. If its SRAM, it can run for a VERY long time on very little power. I'm not sure if the HD2 had DRAM or SRAM, likely its DRAM though
I have a 4MB PCMCIA SRAM card that can hold its contents for a few years using the small CR2025 button cell in the card. DRAM would probably drain a button cell in a few hours.
Ok...some interesting results:
I tested this last night by charging my HD2 all the way to 100% just before bed, and then letting it sit on my desk all night in airplane mode, with the screen off....
7 hours later, the batt had drained 7%
As d0ug mentioned, this is FAR faster of a drain that we should expect when running the phone with all the radios completely off like that...in fact, it's about 4x the rate of drain (percentage of total capacity vs time) that I got on my TP2 when running the same experiment.
So, my conclusion is that there's obviously something on the phone that's running down the battery besides the usual suspects, and nothing obvious I can see or think of offhand.
ahh thanks for the info. Hmmm that throws the 490 hrs in standby that is advertised of the window. But with the 1 ghz processor I am guessing 100 hrs in standby is good. Also I read that some HD2s drain slower after 50%
dy2k said:
ahh thanks for the info. Hmmm that throws the 490 hrs in standby that is advertised of the window. But with the 1 ghz processor I am guessing 100 hrs in standby is good. Also I read that some HD2s drain slower after 50%
Click to expand...
Click to collapse
It still seems too fast to me, for the drain when the radios is off. I'm going to repeat the experiment for the next couple of nights...I think tonight I'll take the SD card out (as well as leaving it in airplane mode) and see if that makes any difference.
What raises the red flag for me is that the rate of drain I saw last night isn't significantly less than what I see when I leave the radios on all night, and in full 3G
Sounds to me like the processor is not going completely to sleep, When i say to sleep i literally mean the processor clock being stopped. Ideally that's what it should be doing until something like an incoming call, message, appointment, etc triggers an interrupt to wake the processor
As we already know from the overclocking util that exists, the HD2 does not run 1ghz all the time. The processor speed steps depending on demand. when its on but idle the processor clock is suspected to have dropped down somewhere in the 100-200mhz range, but a bug in that software does not display the actual processor speed in the lowest range.
I wonder if the processor is constantly on at that 100-200mhz rate even while asleep? or its just some very power hungry ram being refreshed? 576mb is a lot of ram cells to be refreshing several times a second to keep the data in them valid.
d0ug said:
Sounds to me like the processor is not going completely to sleep, When i say to sleep i literally mean the processor clock being stopped. Ideally that's what it should be doing until something like an incoming call, message, appointment, etc triggers an interrupt to wake the processor
As we already know from the overclocking util that exists, the HD2 does not run 1ghz all the time. The processor speed steps depending on demand. when its on but idle the processor clock is suspected to have dropped down somewhere in the 100-200mhz range, but a bug in that software does not display the actual processor speed in the lowest range.
I wonder if the processor is constantly on at that 100-200mhz rate even while asleep? or its just some very power hungry ram being refreshed? 576mb is a lot of ram cells to be refreshing several times a second to keep the data in them valid.
Click to expand...
Click to collapse
I suspect the same, that the proc or memory are still drawing a surprisingly large amount of current when the phone is "idle". I don't know if it's also possible that there's something keeping power fed to the SD card at that time, tonight's test will confirm or deny that theory.
Wherever the draw is, it's obviously something unique to this phone, so I guess it could even be related to the way the hardware drivers are handling *something*..??
sirphunkee said:
I suspect the same, that the proc or memory are still drawing a surprisingly large amount of current when the phone is "idle". I don't know if it's also possible that there's something keeping power fed to the SD card at that time, tonight's test will confirm or deny that theory.
Wherever the draw is, it's obviously something unique to this phone, so I guess it could even be related to the way the hardware drivers are handling *something*..??
Click to expand...
Click to collapse
The results of your test will be interesting, but i highly suspect that its not the SD card. there should be very little current draw from an idle SD card. Flash memory needs no power to retain its contents, so the only power an idle SD card should be consuming is whatever is needed to power the flash controller enough to sit and wait for a read/write command.
Of course that doesn't mean that the firmware on the controller of particular SD cards isn't faulty causing a huge power draw, of even an installed app on the phone constantly reading/writing something on the SD card.
d0ug said:
Of course that doesn't mean that the firmware on the controller of particular SD cards isn't faulty causing a huge power draw, of even an installed app on the phone constantly reading/writing something on the SD card.
Click to expand...
Click to collapse
Bingo and bingo, that's exactly what I want to eliminate first before looking for other causes. By chance, is there a way to look at the actual current draw on the batt in real time?
sirphunkee said:
Bingo and bingo, that's exactly what I want to eliminate first before looking for other causes. By chance, is there a way to look at the actual current draw on the batt in real time?
Click to expand...
Click to collapse
sure, you would need to find some way to get some jumper wires in between the battery and the HD2 so that you could put a multimeter in between the battery and HD2. then you could see the MA being drawn from the battery in realtime on the
you might be able to get creative with a piece of paper with a layer of foil on each side that doesnt touch eachother. you would insert this between the HD2 contact and battery for only one of the contacts. you could then use alligator clips to connect the multimeter by clamping the paper, but insulating the opposite side of each clip so that you dont create a short that can route around the meter
There used to be a battery monitor software i used on my old wizard that would also show the ma being consumed, updated every 10 sec or so. I dont remember what the software was called and im pretty sure it was probably hardware specific for the omap chipset in that phone
d0ug said:
sure, you would need to find some way to get some jumper wires in between the battery and the HD2 so that you could put a multimeter in between the battery and HD2. then you could see the MA being drawn from the battery in realtime on the
you might be able to get creative with a piece of paper with a layer of foil on each side that doesnt touch eachother. you would insert this between the HD2 contact and battery for only one of the contacts. you could then use alligator clips to connect the multimeter by clamping the paper, but insulating the opposite side of each clip so that you dont create a short that can route around the meter
There used to be a battery monitor software i used on my old wizard that would also show the ma being consumed, updated every 10 sec or so. I dont remember what the software was called and im pretty sure it was probably hardware specific for the omap chipset in that phone
Click to expand...
Click to collapse
LOL ok yes I guess that's one way to achieve that I confess I was more just hoping that the batt's circuitry registered/reported the draw in way that could be queried through a driver, etc. I think I'd seen the same app you're referring to back when I had my wizard, but other than using it to maybe point us in the right direction it probably wouldn't be of any use otherwise on this hardware.
So, I did run the test last night w/o the SD card installed, and it actually looks like it did indeed drain slower that way...only about 2% (+/- .5) over the same 7 hour period. However, this just means I want to go back and test it a little more thoroughly that way now, and then with the card in again, just to repeat/validate these results.
However, if it does indeed bear out that the background drain is significantly less with the card removed...I guess that might mean that having the card inserted prevents the proc from idling down as much..?? Not sure of the best way to test/isolate that.
sirphunkee said:
LOL ok yes I guess that's one way to achieve that I confess I was more just hoping that the batt's circuitry registered/reported the draw in way that could be queried through a driver, etc. I think I'd seen the same app you're referring to back when I had my wizard, but other than using it to maybe point us in the right direction it probably wouldn't be of any use otherwise on this hardware.
So, I did run the test last night w/o the SD card installed, and it actually looks like it did indeed drain slower that way...only about 2% (+/- .5) over the same 7 hour period. However, this just means I want to go back and test it a little more thoroughly that way now, and then with the card in again, just to repeat/validate these results.
However, if it does indeed bear out that the background drain is significantly less with the card removed...I guess that might mean that having the card inserted prevents the proc from idling down as much..?? Not sure of the best way to test/isolate that.
Click to expand...
Click to collapse
Yeah now that I think of it, that utility was also an overclocking util for the wizard, so it was most like only going to work on the wizard, or at least only phones using that same omap chip.
Interesting the SD card consumes that much power, are you using the stock 16gig or another card? I wonder if different cards produce different results? Im still using my stock 16gig here, been thinking bout upgrading to a class 6, but i kinda want to get a 32gig card too, but those aren't available in class 6 yet.
d0ug said:
Yeah now that I think of it, that utility was also an overclocking util for the wizard, so it was most like only going to work on the wizard, or at least only phones using that same omap chip.
Interesting the SD card consumes that much power, are you using the stock 16gig or another card? I wonder if different cards produce different results? Im still using my stock 16gig here, been thinking bout upgrading to a class 6, but i kinda want to get a 32gig card too, but those aren't available in class 6 yet.
Click to expand...
Click to collapse
Yes, stock 16GB card. Although, I'd never reformatted it since I bought the phone, but I did last night before I pulled it out for the test. I'm watching the drain through the day today to see if that has any effect during normal use, for now anyway. I'll be running the overnight test a few more times w and w/o the card.
Ah interesting. Last night I charged my phone to 100% and left the 3G on and it drained about 10% in 8 hours which is the same on edge. I also notice that when I used the 3g in the morning I saw the 3g icon on top connecting to the network. I am guessing it goes to standby when not being used for a time. I also switched from 3g to edge everytime I wanted to use the internet but am considering to just leave it on 3g due that I think it consumes more power changing the connection everytime I want to use 3g.
Well I guess we need a tweak to put the processor to real standby when the phone's screen has been off for a long time.
I usually charge it before I go to sleep and not leave it on the charger. When I wake up about 6.5 hours later it usually reads 97%. So it drains 3% in over 6 hours. Not too bad. I'm not in airline mode but my data is off since I'm on prepaid. Wifi and phone are on but I think wifi switches off when it goes to standby. My activesync is also set to manual so no downloading during the night.
buzz killington what radio and rom do you use?
I'm using the stock rom and radio without the update.
Rom: 2.10.531.1 (82076)
Radio: 2.08.50.08_2
I should probably add, when I had the activesync on, I'd wake up and it'd have 93%, so it seems activesync uses quite a bit of power.
buzz killington said:
I'm using the stock rom and radio without the update.
Rom: 2.10.531.1 (82076)
Radio: 2.08.50.08_2
I should probably add, when I had the activesync on, I'd wake up and it'd have 93%, so it seems activesync uses quite a bit of power.
Click to expand...
Click to collapse
Hey buzz...you were using activesync over wifi, do I have that correct?
Related
So I've had my Touch "enhanced" for a bit over a week and I'm having some annoying issues regarding battery life. I'm charging this thing once at least once a day, twice a day when I'm using it a bunch. I've messed with the power settings, and the phone goes into standby after 2min. The only 3rd party software I have is touchpal, everything else is factory. I was just trying to gauge some input from other users. I did call HTC, and was greeted by an ass of a warranty tech, who, after getting my problem explained to him proceeds to ask me what I want him to do. Wow. Then he tells me that a new battery won't be instock for two weeks! How frustrating!
Thanks in advance.
You should get at least a day even with medium-heavy use. Up to two days on average.
If you install the excellent Chi-Dai Battery status plug-in then that will monitor the power drain on your battery. It will tell you if the problem is software or the battery itself.
Doctor Mick said:
You should get at least a day even with medium-heavy use. Up to two days on average.
If you install the excellent Chi-Dai Battery status plug-in then that will monitor the power drain on your battery. It will tell you if the problem is software or the battery itself.
Click to expand...
Click to collapse
Thanks, I was about to download something to moniter the consumption. I'll give it a shot when I get home from school
I have the same issue with my battery. I use it for med-heavy. By the end of the day Im at like 15%. That sux.
I've installed S2U2...does this application drain the battery also?
monitoring your battery life won't do anything when you want to increase it
if you want to save battery life
it's likely that you have your wireless radio's turned on while they don't have to be,
go to your comm manager
WI-Fi drains A LOT of power and should be on only when you plan on using the internet
your GSM phone radio can also be turned off, useful when you're not in an area covered by your carrier when this happens your device panics and sends out signals to connect to the antenna tower this extra cell phone activity is bad for your battery life... and your sperm count
bluetooth takes an insignificant amount of energy to power
lastly pressing the lock button on the device is useful because it turns off the screen but keeps the device on using these features allows me to have my device unplugged for 2 days
the cheshire cat said:
monitoring your battery life won't do anything when you want to increase it
if you want to save battery life
it's likely that you have your wireless radio's turned on while they don't have to be,
go to your comm manager
WI-Fi drains A LOT of power and should be on only when you plan on using the internet
your GSM phone radio can also be turned off, useful when you're not in an area covered by your carrier when this happens your device panics and sends out signals to connect to the antenna tower this extra cell phone activity is bad for your battery life... and your sperm count
bluetooth takes an insignificant amount of energy to power
lastly pressing the lock button on the device is useful because it turns off the screen but keeps the device on using these features allows me to have my device unplugged for 2 days
Click to expand...
Click to collapse
2 DAYS UNPLUGGED? Are you kidding me. On standby or using it. Im thinking this battery is horrible. If I dont plug in every night, im in trouble.
If you want to increase the lifetime, use Battery Status software and activate CPU Scaler, it's great!
Before: I used only 201Mhz freq, my battery had a lifetime of 1 day using it normally.
Now: I've overclocked it to 260Mhz with CPU Scaler activated (low: 99Mhz, average: 201, max: 260) and my touch can stay 3 days without charge need.
I still use these settings but I have a unlimited data contract with my operator, so my touch is connected all the time to Edge (push mail and weather updates), and with these settings I have to charge it every day. Don't care about this since I work with a PC all the time.
I think if I used all the time the original freq, I'd have to charge it more often...
CPU scaler
I have Battery Status ver. 0.5 but don't see CPU scaler, is it only available in the Beta version?
1 to 2 days of life with normal-full use. Up to 4-6 days in standby with almost no use
Bingoig11 said:
If you want to increase the lifetime, use Battery Status software and activate CPU Scaler, it's great!
Before: I used only 201Mhz freq, my battery had a lifetime of 1 day using it normally.
Now: I've overclocked it to 260Mhz with CPU Scaler activated (low: 99Mhz, average: 201, max: 260) and my touch can stay 3 days without charge need.
I still use these settings but I have a unlimited data contract with my operator, so my touch is connected all the time to Edge (push mail and weather updates), and with these settings I have to charge it every day. Don't care about this since I work with a PC all the time.
I think if I used all the time the original freq, I'd have to charge it more often...
Click to expand...
Click to collapse
Can you please give me more info on the battery status software and cpu scaler?
Do you have an Elf or Elfin?
I've an Elfin.
Battery Status is a today plugin you can configure and use to overclock and set CPU Scaler.
Here is in attachment the version I use
Overclock and CPU Scaler are only available for OMAP processors, so for Elf/Elfin it will work.
Bingoig11 said:
I've an Elfin.
Battery Status is a today plugin you can configure and use to overclock and set CPU Scaler.
Here is in attachment the version I use
Overclock and CPU Scaler are only available for OMAP processors, so for Elf/Elfin it will work.
Click to expand...
Click to collapse
Can you give me some more info about how you have it configured. Most people with Elfin are having problems with this software. It seems to not work for CPU scaler. Any feedback from your experience.
PS- I have the HTC Touch enhanced unlocked.
the cheshire cat said:
monitoring your battery life won't do anything when you want to increase it
if you want to save battery life
it's likely that you have your wireless radio's turned on while they don't have to be,
go to your comm manager
WI-Fi drains A LOT of power and should be on only when you plan on using the internet
your GSM phone radio can also be turned off, useful when you're not in an area covered by your carrier when this happens your device panics and sends out signals to connect to the antenna tower this extra cell phone activity is bad for your battery life... and your sperm count
bluetooth takes an insignificant amount of energy to power
lastly pressing the lock button on the device is useful because it turns off the screen but keeps the device on using these features allows me to have my device unplugged for 2 days
Click to expand...
Click to collapse
I turn off the wi-fi when I'm not at home. I'm always within service area, so the GSM radio stays. I don't use bluetooth. It's set to go into standby mode after 2mins. On Thursday, I took it off of the charger at 8:30am had a couple classes till 3pm, so light-to-medium use. It was dead by 3:30pm. I did install BatteryStatus later that night, and figured out the scaler, and it helped the next day. But honestly I shouldn't have to underclock it in order for it to last even a day, a bit ridiculous to me.
enaime said:
Can you give me some more info about how you have it configured. Most people with Elfin are having problems with this software. It seems to not work for CPU scaler. Any feedback from your experience.
PS- I have the HTC Touch enhanced unlocked.
Click to expand...
Click to collapse
I have a Touch enhanced, and am using the CPU scaler just dandy. Just play with the settings a bit, and you'll get the hang of it. Try LOW:100 and HIGH:234, to start out, then go from there.
TIGman said:
So I've had my Touch "enhanced" for a bit over a week and I'm having some annoying issues regarding battery life. I'm charging this thing once at least once a day, twice a day when I'm using it a bunch. I've messed with the power settings, and the phone goes into standby after 2min. The only 3rd party software I have is touchpal, everything else is factory. I was just trying to gauge some input from other users. I did call HTC, and was greeted by an ass of a warranty tech, who, after getting my problem explained to him proceeds to ask me what I want him to do. Wow. Then he tells me that a new battery won't be instock for two weeks! How frustrating!
Thanks in advance.
Click to expand...
Click to collapse
Visit the Kaiser forum. We're having the same issue. GPS seems to be the problem with me. As soon as I turned on GPS, it sucked my battery 5% in 5-7 minutes. Then down to 73% from 97% in 3 hours.
enaime said:
Can you give me some more info about how you have it configured. Most people with Elfin are having problems with this software. It seems to not work for CPU scaler. Any feedback from your experience.
PS- I have the HTC Touch enhanced unlocked.
Click to expand...
Click to collapse
I didn't configure anything particular, just installed it and set the overclock and CPU Scaler.
I talk an average of 2 hours daily. Since 6 am until 8 pm. I always get home with 15% or less. Using batt status with omap overclocking to 247. Average use of pda also.
Bingoig11 said:
I've an Elfin.
Battery Status is a today plugin you can configure and use to overclock and set CPU Scaler.
Here is in attachment the version I use
Overclock and CPU Scaler are only available for OMAP processors, so for Elf/Elfin it will work.
Click to expand...
Click to collapse
Right on brotha. It worked great! I was wondering whats the lowest low you can use to conserve battery? Im at 98-low 247-high, using CPU scaler.
enaime said:
Right on brotha. It worked great! I was wondering whats the lowest low you can use to conserve battery? Im at 98-low 247-high, using CPU scaler.
Click to expand...
Click to collapse
Im on 87/201/247 and boost to 260MHz, everything works fine, only some flickering when it runs on 87MHz..
But the battery life is quite good as it lasts for 2 to 3 days (light to medium usage, some texts, some phone calls, seldom Wifi)..
I have to say that the stock battery lasts much less then the one I got from Brando.. although the amperage is the same
I finally use xcpuscalar only for conserving battery, not for overclock. In another threads some people suffering from spotted, patched even broken LCDs and I do not take the risk to overclock Elfin because of possible overheat of the CPU and the CPU is most likely very close to the LCD due to the thinness of the Elfin. If the CPU is hotter overclocked than it is on normal speed it could cause spot, patch or even damage on LCD. This is my opinion.
Xcpuscalar is able to downgrade dynamically the CPU speed against Batterystatus which is only able to set one speed for the CPU, that's why I chosen xcpuscalar.
It seems to work fine even after soft reset... but 87MHz is very slow for me... it speeds up very sluggish. I use 169, 182 and 195MHz settings.
Will see the energy spare on the battery.
the micro SD card!
i checked it twice overnight and during the day.. so i can say that for sure!
I own a Samsung micro SD 8gb class 6..
Night 1: lost 35 % in 7 hours with SD in it, constant data connection with hourly updates
Day 1: lost about 54 % in 8 with SD in it, constant data con. , hourly updates, some calls,texts & browsing in Opera
Night 2: same conditions as night 1 but without SD card.. lost 7 %
Day 2: nearly same conditions as day 1 but without SD card.. lost 27 %
Now a question: are sandisk cards better? i really need a new 1 cause my samsung's ****ed up!
Hope i could help someone with this..
Use BsB Tweaker which can enable power saver for SD Card.
And keep in mind that Battery lose first half capacity very fast and then stay on long time on the level 30-40-50.
.
Henry_Lee said:
Use BsB Tweaker which can enable power saver for SD Card.
And keep in mind that Battery lose first half capacity very fast and then stay on long time on the level 30-40-50.
.
Click to expand...
Click to collapse
In my case it's the exact opposite, power loss from 100%-50% is slow, below 50% it can go empty within 7 hours in STANDBY (reproducible). Thanks for the advice with BsB Tweaker.
PS: I have a sandisk 16gb class 2.
you mean the power saving option? it's enanled since the first day..
i know that with the first half but the sd card is really killing me! currently working outside so im in need of the radio.. with sd card in it and running fm radio, battery drainage is about 19 % per hour.. thats not even a bad joke anymore, its realy frustrating!
thank god that i have electricity here
That can't be right. Must be a rogue application. I have a 16 GB card and the phone never loses more than 1-2% (radio off) during the night.
must be my samsung card.. apps are all closed over night!
i got tomtom,navigon,some music & games on my card.. no idea
Formaty sd card and try again.
Must be some application installed on sd or some problem with the sd card itself
Ill try it when im at home!
is there an alternative for the built in fm radio? tried listening without sd.. same result 3 % loss in 10 mins! how can a dumb radio use so much battery?
i remember listening radio with my nokia e90.. listend for hours with minimal battery loss
It makes sense to me, thats why I was saying this here http://forum.xda-developers.com/showpost.php?p=5230146&postcount=10
Any fellows here are using the A-data class 6 16gb and dose not affect the battery life? I'd like to ask this again.
Thanks in advance.
waxfresh said:
is there an alternative for the built in fm radio? tried listening without sd.. same result 3 % loss in 10 mins!
Click to expand...
Click to collapse
I tried mine too, and I lost 4% in 10 minutes, but that was with the screen on. I then turned off the radio and lost 3% in 10 minutes with the screen on, but not doing anything (other than usual-for-my-phone background tasks). I then turned the radio back on and turned the screen off, and it used less than 1% in 10 minutes (I say less than 1% because the indicator had not changed.)
To me, that says that (in my case) the battery killer is the screen, which I can accept because I have it lit very high (I just don't like it dim.)
pedmond said:
That can't be right. Must be a rogue application. I have a 16 GB card and the phone never loses more than 1-2% (radio off) during the night.
Click to expand...
Click to collapse
Please tell me you are talking about the Sandisk 16GB class2
johncmolyneux said:
I tried mine too, and I lost 4% in 10 minutes, but that was with the screen on. I then turned off the radio and lost 3% in 10 minutes with the screen on, but not doing anything (other than usual-for-my-phone background tasks). I then turned the radio back on and turned the screen off, and it used less than 1% in 10 minutes (I say less than 1% because the indicator had not changed.)
To me, that says that (in my case) the battery killer is the screen, which I can accept because I have it lit very high (I just don't like it dim.)
Click to expand...
Click to collapse
screen off,radio on.. still 3% in 10 min.
my screen is on 20 % light .. i also would like to set it to 100% but i dont want the battery to be empty before i can type in the pin
waxfresh said:
screen off,radio on.. still 3% in 10 min.
my screen is on 20 % light .. i also would like to set it to 100% but i dont want the battery to be empty before i can type in the pin
Click to expand...
Click to collapse
The only major thing I'm considering changing, to see if it has any effect, is my windows live config. I currently have my sync frequency set to "as soon as it arrives", which requires a constant data connection (before that starts a flame war, please read this.) I'm gonna turn that off and see if it improves, but I still think the screen is my big problem.
TheGodfather-GF said:
In my case it's the exact opposite, power loss from 100%-50% is slow, below 50% it can go empty within 7 hours in STANDBY (reproducible). Thanks for the advice with BsB Tweaker.
PS: I have a sandisk 16gb class 2.
Click to expand...
Click to collapse
Sounds like you need to recalibrate the "remaining-charge-estimate-circuit-thingy" in your HD2's battery. Drain battery to as near as nothing as possible and fully charge it without unplugging it (I have heard its suggested to do this with the device off). Might work straight off the first time, might take a couple goes.
Do not leave the device below 20% charge for any long period of time as it can cause problems with the Li-Ion battery.
johncmolyneux said:
The only major thing I'm considering changing, to see if it has any effect, is my windows live config. I currently have my sync frequency set to "as soon as it arrives", which requires a constant data connection (before that starts a flame war, please read this.) I'm gonna turn that off and see if it improves, but I still think the screen is my big problem.
Click to expand...
Click to collapse
my live sync is off.. useing gmail with the built in mail app, updateing hourly
waxfresh said:
my live sync is off.. useing gmail with the built in mail app, updateing hourly
Click to expand...
Click to collapse
I'm gonna try it on mine and see if I have any improvement anyway. I'm sure we have different things running on our devices. I'm just trying to narrow things down before removing the SD card to see if that does anything.
SD Card is one of the factor
To my sense, if a lot of softwares in installed in your SD Card, then definitely the battery will deplete rapidly.
I install all 3G-constant-data-softwares in the system memory, not card. Those not required CONSTANT 3G data connection and not to be running 24/7 will be installed in SD card (eg. 1-Calc, TCPMP, Lexisgoo, Resco Explorer).
So far, with the stock ROM and related softwares (installed at "right" locations) gives me average 1 full day battery juice having 25% balance. And again, battery consumption is a very very subjective topic. SD card IS definitely one of the battery earter.
I have not tested the following in a very detailed way but I think it worth while trying it:
Even so I have used the power saving tweak from BsB Tweak I found in sk Tools in tuneup that all Power Saving features are switched off.
So I switched On all Power saving features in sk Tools and I have the feeling that the battery usage is less now.
For example:
From midnight full 100% charge till 8am in the morning I had 89% left which is a little bit more than 1% loss per hour and this is not bad.
But with the new Radio 2.06 I have the feeling that battery power is getting more drained during a talk or during interent connection.
On the other side the reception is quite good and I have also the feeling that data connection is better - receiving data faster after a connection is established.
Again: This are all "soft" fatcs I have not done a sientific evaluation
I have a San Disk 16GByte Class 6 storage card.
Best regards,
dingolino
Hi, are you sure that your micro sd is a sandisk class 6? cuz I've never found Sandisk has released a class 6 16GB microcard..thats why I had to buy the A-data one.
The only software I have installed in the storge card is a GPS software IGO8.
This battery issue is driving me crazy, I begin to miss my HTC HD(original 1.43 ROM) which drops only 2%(My hd2 loses about 40% power) every night, even I always have kept my data connection on.
dingolino said:
I have a San Disk 16GByte Class 6 storage card.
Best regards,
dingolino
Click to expand...
Click to collapse
My personal battery killer is 3G. I have downloaded 100Mb in 5 minutes and have lost around 5% of my battery
Daniel
With the HD2's pretty short battery life compared to my previous HTC phones, and also as I was a bit bored , I decided to have a look at how much the different systems drain in the HD2, and did some tests.
So for anyone interested, here are the results:
Base consumptions: (pick the one that suits your situation)
Standby, phone on, WIFI+BT off, no connections active: 5mA
Processor running idle, screen off, connections as above: 55mA
100% CPU usage (Coreplayer benchmark), connections as above: 315mA
USB connected, connections as above: 125mA
Additions: (add this to the base one depending on what you have on)
Connections:
BT on, idle: +1mA
Wifi on, idle: +5mA BUT!! If you enable wifi during standby (with BsB Tweaks or the WifiNoStandby CAB), the processor does NOT go to standby
anymore, so the base needs to be the 55mA above!
Connected to EDGE, idle: not measureable
Connected to 3G, idle: +4mA
Beware those 2 will occasionally and unpredictably send data every now and then, so this doesn't necessarily mean much.
BT transfer (file copy through ActiveSync, 120kB/s, CPU usage ~2%): +80mA
Wifi transfer (file copy with Wifi Remote access, 1MB/s, CPU usage ~3%): +200mA
EDGE/3G transfer: Pretty impossible to measure due to so many variables, but can be extreme (total current consumptions of 850-1150mA, so very approximative 500-800mA draw from the data connection during page loads are common!), and leads to most of the energy draw when using the net a lot. EDGE uses more power than 3G, consumption is higher when network coverage is lower, bad network throughput or congestion also mean lots of retries/overhead and less effective data transfer, using power for a longer time until the data is finally there.
Memory access (large file transfer):
Internal read/write through ActiveSync (speeds 2.5 / 2.1 MB/s respectively): +20mA / +130mA
Card read/write through ActiveSync (speeds 3.2 / 2.7MB/s respectively): +25mA / +40mA
Card read/write in USB disk mode (speeds 7.5 / 5MB/s respectively): +40mA / +45mA
Backlight:
10%: +65mA
20%: +78mA
30%: +90mA
40%: +105mA
50%: +121mA
60%: +136mA
70%: +154mA
80%: +170mA
90%: +190mA
100%:+210mA
GPS:
+95mA
Flashlight (with HTC Flashlight):
Level 1: +32mA
Level 2 (same as camera flash on): +107mA
Level 3 (same as camera "bright flash during shot"): +530mA
And remember the battery capacity: 1230mAh
So with this you can calculate your battery life for various activities. For example:
- Playing a video with full backlight: Let's say the video is well encoded (30% CPU use, for example 720x400 1Mbps DivX), that's about 150mA base, + 210mA backlight = 360mA, resulting in about 3h20 battery life.
- Same at night with only 40% backlight: Life goes up to about 5h!
- Wifi during standby for an 8h night, or a program that somehow prevents the phone from entering standby: 60mA or 55mA respectively, draining about 40% of the battery during that time.
- GPS program, with 70% backlight: Let's assume 150mA for the processor as it has some work to do, 90mA for the GPS, 154mA for the backlight = 394mA, or 3 hours.
- Music through wired headphones, screen off: the 55mA base plus a little 5mA as MP3 decoding is nothing for the CPU = 60mA or 20h.
- Same with a BT headset, with about half the BT bandwidth: 60+40 = 100mA or 12h
etc.
Charging
[EDIT 14.04.10]
This is now a dedicated section as I did some more thorough charging tests.
So, as some of you might know, the HD2 has 2 charging "modes".
- One is USB, that is used if the phone is connected to a PC, or an unknown device. In this mode, the current the HD2 will draw from the port/charger is limited to approx. 470mA, to stay within the maximum of 500mA a USB port can supply.
- The other is "dedicated charger", which is recognised on the original HTC charger (and some others, it's becoming a standard for a "dedicated charging USB port") by shorting of the 2 data pins of the USB connector in the charger.
USB charge
Important to know, during USB charge, the phone will NOT go to sleep, as it's supposed to be connected to a PC, and be running either ActiveSync, Disk drive mode, or modem, and in all 3 cases would be expected not to shutdown. So not only the current supplied to the HD2 is low, but the phone draws some of it for itself, leaving very little for actual charge - so expect loooong charge times.
USB charge with screen on (backlight dimmed, 10%): 285mA
USB charge with screen off (standby): 345mA (which shows the processor still runs and draws the "base USB" current)
Dedicated charger
When used with a charger that has the 2 USB data pins shorted, such as the original charger, the HD2 will draw a current that is proportional to the voltage on the USB power lines. To measure this I have used the original supplied USB cable, a variable regulated power supply, USB socket (with data pins shorted), and 2 meters for voltage/current. Voltages are measured at the "PC" end of the USB cable, so not taking account of losses in the USB cable. Will talk more about this later on.
Current vs Voltage diagrams are attached. Charge current is proportional to voltage, linearly until it reaches the max charge current, approx 830mA. This was measured so that the only draw is charge. If the phone is turned on while at max charge current, it will draw extra, until it reaches about 980mA, and will then stop to respect the 1A rating of the stock charger.
Now, to the influence of USB cables. I initially had some trouble with inconsistant numbers, phone only drawing 670mA from the stock charger, i.e matching neither the ~350mA from USB, or ~830mA from stock charger in "normal" condition. Turns out that to make it more convenient on my workplace I was using an USB extension between charger and HD2 cable. It was a $2 extension I bought on Dealextreme. Removing it solved the problem... and after making those measurements I poked with it again. Turns out that at 1A current, the voltage drop in the extension (which by the way isn't longer than the HD2's USB cable) was 1.8V! Yep, nearly 2 Ohms for a 1.5m extension! Couldn't believe it.
I have a cheap Chinese microUSB cable that wasn't as bad,but still significantly more resistive than the stock one, hence me noting I used the stock cable for my tests. So, quality of the cables, extensions, adapters IS important! Note the phone correctly reaches full charge current a little bit under the 5V USB spec, so everything is well tuned.
Now, important to know, Most 3rd party chargers will not have the 2 USB data pins shorted, and will thus result in the same behavior as mentioned under USB charge, the processor will also be running continuously drawing the "base USB" current.
It is often possible to modify 3rd party chargers by opening them and shorting the pins, speeding up charge. The voltage/current curve behavior is actually helping there, because thanks to it if the charger is overloaded its voltage will most likely fall a bit, and the HD2 will thus draw less and find a nice balance point. This DOES NOT mean there's no possiblilty of damaging the charger, but all 3 I modified did well. One that was really weak resulted in not much more current being drawn after the mod than before (i.e voltage fell very low, approx. 4.4V), however the gain from not having the processor running like in USB mode still sped up charge a little.
Thank you, that is one useful chunk of comprehensive information
Could you please explain the exact measuring method for these tests?
40% backlight at night is a tough example tho, Lumos on my device is set to 10% for 0 sensor value, and only because I can't set it to lower than 10%... nice to know battery drain goes up twice from 10% to 60%!
Also, 100% is usually really necessary under direct sunlight, in a normal lit room probably 40% backlight is more than enough to watch a video... all in all, with your superinteresting info, the battery doesn't look like lasting "too short" now, but more or less "the right amount considering the battery capacity".
My iPaq 210 has a 2200mAh battery, just to make a comparison... that's why I could go for 8 hrs during some bus trips while watching tv series, and I just needed to swap battery and used a little of the second one.
What's your estimate of the drain caused by activating push email? I've recently been doing some rather crude experiments myself, and one provisional conclusion is that push email on a hotmail account uses a lot more battery than push email on an Exchange server.
Excellent stuff, you are to be congratulated.
I have a long held theory and I wonder if you are in a position to to test it?
I believe that battery consumption is greatly increased when an app is run from mem card and would be intrigued to see a comparison between an install to this as opposed to phone mem.
Any chance?
Battery levels
I found that power consumption of the battery got even worse after I went to Rom 1.66.707.1. However, after a few days, I let it run all the way out, switched back on, it ran out after a few minutes. Then after an overnight charge I found the battery (on standby) only went down by about 10 -12 % in 24hrs. I'm hoping this performance will continue.
What did you use for the testing?
pa49 said:
Excellent stuff, you are to be congratulated.
I have a long held theory and I wonder if you are in a position to to test it?
I believe that battery consumption is greatly increased when an app is run from mem card and would be intrigued to see a comparison between an install to this as opposed to phone mem.
Any chance?
Click to expand...
Click to collapse
That would be reasonable as reading from an external media will need energy to access its contents... still, once the app files have been loaded into the device's RAM, it shouldn't matter much
You could also test by comparing:
1) copy say 30mb from one location to another of the internal mem
2) copy from microsd to microsd
3) copy from mem to microsd
4) copy from microsd to mem
ephestione said:
Could you please explain the exact measuring method for these tests?
Click to expand...
Click to collapse
Simply using the built-in current sensor, getting the reads from AEBPlus battery information screen, and methodically turning things on/off once the others are evaluated and can be subtracted from the total reading.
ephestione said:
40% backlight at night is a tough example tho, Lumos on my device is set to 10% for 0 sensor value, and only because I can't set it to lower than 10%...
Click to expand...
Click to collapse
Really? You should force the backlight off then
I love bright images myself, so even in my bed in total darkness if I watch a video or photos I'll force 100% backlight I have Lumos set to force 100% for Coreplayer, Resco Photo manager and HTC album
Of course not for browsing or just messing around, in that case it's 20% for me
Shasarak said:
What's your estimate of the drain caused by activating push email? I've recently been doing some rather crude experiments myself, and one provisional conclusion is that push email on a hotmail account uses a lot more battery than push email on an Exchange server.
Click to expand...
Click to collapse
That's one thing I'd have no idea about... I've never used push email at all. And that's "standby usage", so hard to evaluate, as you never know when it kicks in.
Measuring that would need to be done on a long time. I'd say to leave your phone one night with push email off, one night with Exchange only, and one night with hotmail only, and then check the difference, preferably with a battery at about 80% charge at the start (mine seems to fall from 100% to 90% in a few minutes before becoming more regular, so I'd say the top of the scale isn't that reliable).
And I should really try push email once, that would be nice, but I *think* I have no provider that can do it for me... well I have a gmail account I never use, I should try to see if I can have it check my usual 3 mail accounts, aggregate and push... never really looked into that stuff.
pa49 said:
Excellent stuff, you are to be congratulated.
I have a long held theory and I wonder if you are in a position to to test it?
I believe that battery consumption is greatly increased when an app is run from mem card and would be intrigued to see a comparison between an install to this as opposed to phone mem.
Any chance?
Click to expand...
Click to collapse
Thanks
Well I'd tend to refute that theory, because when I tested the BT and Wifi in use I tried read from internal memory, write to internal, read from card and write to card, and all 4 were identical. I should have mentioned it indeed, but I was mostly interested to seeing if reads (wifi/BT "sending") and writes (wifi/BT "receiving") would have an influence on consumption, which wasn't the case, as well as whether the throughput was different, which wasn't the case either.
But I've done a few more tests, see the updated first post
One intersting thing is firstly that when the HD2 is connected to USB, the current draw grows significantly, so I've made a new "base consumption".
Next, the card is actually faster than the internal memory both in reads and in writes, tested both through activesync for consistency. Writing to the internal memory eats a LOT more than writing to the card. Reading from the card eats a little more than reading from internal memory, probably evens out as the reads are shorter due to faster transfer rate.
I've added some charging tests as well. Apparently, even if the phone "disconnects" from USB when turned off, the processor still runs and uses about the "USB connected" base current.
kilrah said:
Simply using the built-in current sensor, getting the reads from AEBPlus battery information screen, and methodically turning things on/off once the others are evaluated and can be subtracted from the total reading.
Click to expand...
Click to collapse
d'oh aebplus has a battery information screen, checking it right away In that case you'd have to take into consideration aebplus' current absorption anyway... which is not measurable as you cannot check the current intake of aebplus without aebplus being running
I have the cab on the sd already, but didn't install if after noticing that didn't work for button assignments with later versions of the rom... does it work for you on that side? I used the program all the time on my previous ipaq because it was oh so useful but never got around to notice it had a battery info subsection.
Really? You should force the backlight off then
Click to expand...
Click to collapse
Wouldn't have much sense doing it in the dark would it (admitting it's possible altogether on the HD2!)
But I actually used my oooold casio cassiopeia, about 7 years ago, with backlight turned off, while reading ebooks with speed reader plus during train trips, as the neon lights created a reflection good enough on the display so that I didn't need backlight...
in the end, the backlight died altogether and until I bought a new device, I managed to use it with light turned off
A flashing LED (incoming SMS warning, e.g.) seems to add consumption of 1-3mA.
Running FlexMail in background with a push service (IMAP IDLE) adds up to 30mA.
ephestione said:
does it work for you on that side?
Click to expand...
Click to collapse
AEBPlus works fine for me yes... but I don't have a "latest version" ROM AFAIK. I don't like WM6.5.x new softkey arrangement, so I'm staying with 6.5.
Anyway more about Push, I configured that through gmail yesterday, and it works just fine. I left it on during the night, and this morning I had lost 8% battery. So it's pretty much negligible. I received 2 e-mails during the night and was on 3G network.
this is a nice topic! i am interested in how much extra it uses when you are playing a MP3 with the build in HTC app?
maybe it would be a nice idea to make a program that outputs results like you pasted fast and easy (something like a benchmark app) so we can test different rom's fast? too bad i cant write anything otherwise i would try..
OK, seems MP3 uses 120mA screen off, both with Sense player and Coreplayer, so:
Processor running idle, screen off base + 65mA
But it seems to make some pretty big "jumps" once in a while. Maybe they both decode ior fetch from memory by "batches"...
my test,
HD2 rom 1.66
with BT on and BT off (configured but no connection to headset) difference in consumption is 60mA .!
BT is draining my HD2 .!
kilrah said:
OK, seems MP3 uses 120mA screen off, both with Sense player and Coreplayer, so:
Processor running idle, screen off base + 65mA
But it seems to make some pretty big "jumps" once in a while. Maybe they both decode ior fetch from memory by "batches"...
Click to expand...
Click to collapse
OK, I can't confirm the BT issue. Did you observe over a long period of time? The "quiet" current for MP3 I seem to get is 185mA with screen on and backlight at 10%, but sometimes it will climb to 280-320mA for a moment and go down again, both with BT on and off. With screen off for a while it seems to stabilise at the "quiet" level.
BTW, it seems that Advanced task manager isn't reporting CPU usage levels properly. Does someone know of a CPU monitor that works correclty on the HD2?
Yup. review over multiple 6 mins. all baseline(3g/brightness) setting the same. resetting each time for off on BT.
kilrah said:
OK, I can't confirm the BT issue. Did you observe over a long period of time? The "quiet" current for MP3 I seem to get is 185mA with screen on and backlight at 10%, but sometimes it will climb to 280-320mA for a moment and go down again, both with BT on and off. With screen off for a while it seems to stabilise at the "quiet" level.
BTW, it seems that Advanced task manager isn't reporting CPU usage levels properly. Does someone know of a CPU monitor that works correclty on the HD2?
Click to expand...
Click to collapse
Another consideration:
Data connection sucks power when used actively. Badly. As mentioned in the OP I haven't made comprehensive tests due to low monthly allowance, but I've had a look during normal use.
I'm pretty regularly doing 1hr train rides, during which I will be listnening to music , and browse the net at the same time. It's usually bright, so backlight will probably be at 70%. Signal is relatively low most of the time, on EDGE, inbetween small towns. When I'm on a "static" page (reading an already loaded page), current drain varies between 250 and 350mA.
But while loading a page, it will easily soar to 800mA+. Considering it takes 30-60 seconds to read a page, 20 to load a new one, and repeat... you can quickly see that this kind of usage leads to serious drain... in less than 2 hours the battery would be dead.
So be aware of how much power data connection will use. It's directly proportional to the amount of transferred data, and the worse the reception the more power it uses.
I should try using opera mini again, like I was always doing on my Kaiser. I never noticed excessive drain with it, but opera mini easily divides traffic by a factor of 10...
Just wanted to report that the new version of the superuseful BattClock has now a builtin battery current output, even if it's not really update once per second... seems more like one every 10 seconds.
I get ~240mA playing fullscreen stretched Frasier in lowest backlight (but that's with the keypad leds turned on all the time, I don't know why they don't go off, and I don't have keypadledcontrol installed... so that's a problem), and I get a total 630mA with HTC flashlight at maximum.
Good news! Bye bye Batti
Normal about the refresh time, the sensor only updates every 20 secs or so.
Some new considerations I posted somewhere else but should have put here.
After some time the HD2 seems to have better battery life, but usually it's not your battery lasting longer, it's just you not spending your day playing with the thing anymore.
It's always the same thing, the more a device can do, the more you do with it. On my first 1h train journeys after getting my HD2, I was able to kill 50% battery in 1hr. My first thought was "wow, with my Kaiser I would only use like 15%!!"
But then I took a second thought. I used 50%, but I was browsing the web, in bad reception areas, while listening to music the whole time. With my Kaiser, I'd put music on, check 3 webpages, then put it on the tray with just MSN connected and just pick it up to read/type a message once in a while.
On a next trip, I "forced myself" to do the same with the HD2. Just checked the news for 5 mins, then only listened to music and picked up msn once in a while, plus an unexpected 10min phone call. Guess what? I've only used 20% battery during the trip this time
The "problem" is that browsing with the Kaiser was just painful, so I'd just check the news and put it away. On the HD2 it's so comfortable I forget it and just spend my whole trip browsing heavy pages, which obviously kills battery in no time...
exactly my thoughts and findings
Hi
Battery problem, keeps draining quickly, just by leaving it anywhere. I charge the htc hd2, after not much use... the battery looses charge? I have s2u2 installed any ideas why this would be?
In other words, battery is on 100%. I open it using s2u2 and close it, just random play aroung with the phone. Next minute you know the battery is going lower and lower in matter of minutes. Thats with no phone calls, few text, no music, no games played i think your getting the gist?
This is wierd? anyone else experience this?
Please can some help and advice in the right direction.
thanks.
Fame123 said:
Hi
Battery problem, keeps draining quickly, just by leaving it anywhere. I charge the htc hd2, after not much use... the battery looses charge? I have s2u2 installed any ideas why this would be?
In other words, battery is on 100%. I open it using s2u2 and close it, just random play aroung with the phone. Next minute you know the battery is going lower and lower in matter of minutes. Thats with no phone calls, few text, no music, no games played i think your getting the gist?
This is wierd? anyone else experience this?
Please can some help and advice in the right direction.u
thanks.
Click to expand...
Click to collapse
Try a search as there is a ton of stuff about how to treat the battery in order to get the most out of it.
hi pa49
I have looked at soo many post on xda, but i cannot get to to the bottom of it?
1. Is there any post you might note of, that could possibly put me in to the right direction?
2. also any place you can get extended battery (not the big fat one lol)
Fame123 said:
Hi
Battery problem, keeps draining quickly, just by leaving it anywhere. I charge the htc hd2, after not much use... the battery looses charge? I have s2u2 installed any ideas why this would be?
In other words, battery is on 100%. I open it using s2u2 and close it, just random play aroung with the phone. Next minute you know the battery is going lower and lower in matter of minutes. Thats with no phone calls, few text, no music, no games played i think your getting the gist?
This is wierd? anyone else experience this?
Please can some help and advice in the right direction.
thanks.
Click to expand...
Click to collapse
you may want to install battclock and check what0s your cpu usage, also disable s2u2, check differences, and whatnot... the only way you can find if it's a software problem or not is by checking with a clean rom.
Usual old boring advice, backup and hard reset, test with nothing installed, if there is the same problem of very high drainage, it's basically a good chance you need to send it back for warranty
I have exactly the same problem. Suddenly yesterday my phone's battery drained and I found my phone switched off, out of nowhere. I charged it for 3-4 hours, and then played some games, the battery was left at 85% and when I woke up today, after 6 hours, it was off again.
So you are suggesting to perform a hard reset and observe the way the battery drains?
Ok, First get the battery working at max capacity by charging it non stop for at least 2 weeks. Whenever you can and wherever you can for as long as you can.
Once you have done that there is a battery monitoring capability built into the charging circuits. You could then allow your battery to drain to cuttoff and then recharge to full again which will accurise the power remaing readout. I never bother with this step as I just use the phone and then recharge as soon as I can again, but, if it's important to you then go ahead, but, don't continually allow the cutoff point to be reached as this will damage the battery.
Now you have maximised the capacity of the battery see how it performs and assess whether you need to take further action.
Installing apps to mem card will eat battery.
Some say leaving apps open will drain the battery. I'm not too sure, but, it's good practice to close them any way.
Finding a clean and pared down cooked ROM will save a lot of power, but, you will have to do your own experimenting there.
After that you could invest in a spare/extended battery, however, I would suggest an external rechargable power pack (Have a look at the juice bar solar pack as it will recharge itself without needing a power socket or USB port (although you can use them!), purely by sunlight. Another advantage is that if you change your phone you still can use the pack with your next device and they will also charge many other devices!
Good luck!
I have my new hd2 leo, and battery seemed to be the main issue for me cause it couldn hold 1working day... but as everybody told its nessesery to charge 1 week to exercise battery for its full potential.. but i did some improvements, did the registry thing with dissablepowersavings dont remmember where found that, and instaled wmpowersaving, for control of 3g 2g data, using 2.12 radio rom, witch is more stable than 2.08 cause i use hd2 for a lot of browsing, and 2.08 was freezing my device.. 2.12 is stable and seems using much less power, i can feel less heat in the back of the case.. tried android... but that was not intterested me... i dont need those 1000ds of apps i need to browse the internet using iris browser.. and now battery easily can hold 2 days with some wifi 3g browsing.. and few phone calls some usage of camera.. witch is poor in dark conditions... so i think battery life is 2days ... and control the 2g 3g networks, turn off location service, turn off data connection.. and the battery for today evening is still 72% after 10 hrs of few phonecalls and a bit browsing with wifi.. some gps navigation i dont even think to buy expanded batery cause i dont like the BACK BIG CASE ... Also i wonder how much power is nessesary to run Micro SD built in card reader... because its a pitty to have 180mb internal memory for progams... if it had 2gb then u install everything in the memory and dont use the sd card reader witch i suppose will save couple of hours of battery.
this issue has been well documented..imo the stock rom battery life is awful lasts up to 24hour on casual use for me..there are cooked roms with better battery life or you could invest in a bigger capacity battery from htc or third party ones on ebay
There is a known issue with the HD2 and microsd cards, when the microsd's filesystem becomes corrupted, causing battery drain.
reijkelhof said:
There is a known issue with the HD2 and microsd cards, when the microsd's filesystem becomes corrupted, causing battery drain.
Click to expand...
Click to collapse
I just popped out my sd card to see if it is going to see how my battery does.
I will post my conclusion tomorrow.
Jeff
innovator8 said:
I just popped out my sd card to see if it is going to see how my battery does.
I will post my conclusion tomorrow.
Jeff
Click to expand...
Click to collapse
Jeff wake up
Jeff? Jeeeeeefffff!!!!
jammerlappen said:
Jeff? Jeeeeeefffff!!!!
Click to expand...
Click to collapse
Oops,
Sorry, I did not really notice any difference with the card out. I am currently trying it again just to be sure.
Jeff
innovator8 said:
Oops,
Sorry, I did not really notice any difference with the card out. I am currently trying it again just to be sure.
Jeff
Click to expand...
Click to collapse
Ok, so I did a quick test, I turned off the radio just to take that out of the equation.
I ran for two hours, first hour with SD card out and then an hour with it in.
From the log, you see that I am about 6 to 7 mA up until 0945 and then it started to cycle, I dont know why, the phone was in standby the whole time.
I put the SD card back in at 1016 and opened explorer just to access it once.
the cycling continued for like 30 min then settled back down to 6 to 9mA.
So, it looks like the currnt is a few mA higher with the SD card in, but I have no idea why the phone was sucking over 150mA in those four to five reading bursts when I was not using the phone.
What do you think?
Jeff
Hello,
When I got my SGS it only ate 2-3% of the battery during the night. Since then I've tried many different firmwares, currently on the latest JM6, and all of them have had a very annoying problem. It eats 8-10% of the battery during night. I haven't changed anything, wifi is "always on" to avoid it eating battery using 3G. Ofcourse I've tried turning it off, too. The funny thing is that using Spare Parts it seems like it's the "suspend" process using a lot of CPU, which I believe it definately shouldn't. Some times after flashing it seems okay and can sleep properly, but then it goes haywire again - without having installed anything since it worked. Anyone else having "suspend" process using a lot of CPU?
To test, install Spare Parts. Plug in the charger, and remove it again to reset stats (Spare Parts uses some system app to show the CPU usage, and its default view is "since last unplugged", very practical). Go to bed. Sleep. Wake up. Start Spare Parts. Select "Battery History". Click "Other usage", select "CPU usage". Wait for half a minute or so (it needs to load data, if you click anything now you won't get CPU time used). Find the "suspend" process. Check how much CPU it has used.
I might add, that this doesn't seem to have anything to do with wake locks, it's something strange in the system itself.
try next time with all unecessary items off
like WiFi, GPS, BT anything that you don't use when you go to sleep
AllGamer said:
try next time with all unecessary items off
like WiFi, GPS, BT anything that you don't use when you go to sleep
Click to expand...
Click to collapse
Thanks, but I've noticed something strange - still checking, but it seems as if I haven't got my SD card inserted, it looks okay...
I use JM5, Wifi Always on, 3G Always on, Auto sync off when unnecessary.
I was working at the polling booths on Election day here in AU, that's from 7:30AM till 11:30PM, I didn't really need to use my phone for anything, but when I got out 16 hours later I noticed that I had only lost about 3-4% battery.
It's pretty good. D:
For the record:
Bluetooth - This only needs to be turned off if there are devices that auto-pair with the phone, such as a bluetooth headset, in which case you probably want it on anyway?
GPS - This does not need to be turned off as it only uses battery when a service is actively requesting a gps fix. For example if you have Maps open it will drain more battery, but it won't on standby unless you are using Location tracking software or otherwise location aware software.
WiFi - Truth to be told, WiFi when connected uses less power than a 3G connection on standby. WiFi does have the potential to use a lot more power than 3G because of the higher speed potential over a local wireless network. In most cases it's pretty safe to have WiFi always on, however it should be noted that when WiFi is NOT connected it will constantly scan for access points to connect to, this process uses power ON TOP of 3G, so it would be wasteful to leave this on unnecessarily unless you were using it for Google Location services via WiFi access points.
3G Data - The only reason this 'uses power' is because it's a always-on connection, you can partially remedy this by giving WiFi always-on priority saving both mobile data quota and some power. 2G uses a lot less power than 3G simply because it uses the GSM chip in the phone, not it's own higher power chip. So switch to 2G if u don't need high speed data, but want always on Push notifications and such. (EDGE is fairly fast, but I only get GPRS and 3G on my carrier. )
Brightness - This phone has a super bright screen, use something in the lower settings, auto brightness at day if you want.
sturmeh said:
I use JM5, Wifi Always on, 3G Always on, Auto sync off when unnecessary.
I was working at the polling booths on Election day here in AU, that's from 7:30AM till 11:30PM, I didn't really need to use my phone for anything, but when I got out 16 hours later I noticed that I had only lost about 3-4% battery.
It's pretty good. D:
For the record:
Bluetooth - This only needs to be turned off if there are devices that auto-pair with the phone, such as a bluetooth headset, in which case you probably want it on anyway?
GPS - This does not need to be turned off as it only uses battery when a service is actively requesting a gps fix. For example if you have Maps open it will drain more battery, but it won't on standby unless you are using Location tracking software or otherwise location aware software.
WiFi - Truth to be told, WiFi when connected uses less power than a 3G connection on standby. WiFi does have the potential to use a lot more power than 3G because of the higher speed potential over a local wireless network. In most cases it's pretty safe to have WiFi always on, however it should be noted that when WiFi is NOT connected it will constantly scan for access points to connect to, this process uses power ON TOP of 3G, so it would be wasteful to leave this on unnecessarily unless you were using it for Google Location services via WiFi access points.
3G Data - The only reason this 'uses power' is because it's a always-on connection, you can partially remedy this by giving WiFi always-on priority saving both mobile data quota and some power. 2G uses a lot less power than 3G simply because it uses the GSM chip in the phone, not it's own higher power chip. So switch to 2G if u don't need high speed data, but want always on Push notifications and such. (EDGE is fairly fast, but I only get GPRS and 3G on my carrier. )
Brightness - This phone has a super bright screen, use something in the lower settings, auto brightness at day if you want.
Click to expand...
Click to collapse
I've got bluetooth off all the time, it's currently running a very new install of JM6, and I haven't installed anything that runs when I don't want it to run. 3G isn't used, as wifi is always on (advanced wifi settings).
It's around 7 hours since I pulled the plug, after having restarted phone after removing SD card, and the suspend process isn't even on the list anymore... I find this quite interesting - it might just be a coincidence, but right now it looks like there is some kind of problem with suspend process when SD card is in... Do you have an "external" SD card in your phone?
ive just flashed JM1 and hate how much power its using... no idea what the problem is, but ive just come off the official JM1 from Kies, and had a big problem so had to flash the first thing i could find. can this really be down to firmware?
i mean im really noticing a difference on standby, before id loose like 3-4% in a whole day of not using it, now it drops 10% in like a few hours...
sensi_ said:
ive just flashed JM1 and hate how much power its using... no idea what the problem is, but ive just come off the official JM1 from Kies, and had a big problem so had to flash the first thing i could find. can this really be down to firmware?
i mean im really noticing a difference on standby, before id loose like 3-4% in a whole day of not using it, now it drops 10% in like a few hours...
Click to expand...
Click to collapse
Do you have "external" SD card?
i do use 16GB class 6 external SD from Transcent
MoWa22,
I had this happen to me last night and (am stock DXJG04) so very interesting. Trying to remember what my battery drain was last night but I think it was around 10-15% and previously I would get 1% if I turned everything off except being able to receive calls.
I always thought these issues were related to wake locks or that the phone just cannot sleep. Something to try is to reboot the phone and check the battery power before going to sleep and see the battery drain over the night. If minimal battery drain, then maybe it is a rogue app which you may have opened/used during the day. If same 8-10% drain, then am guessing some service or inbuilt process is causing issues.
Half the battle is trying to track the CPU hog or rogue app.
Dang. Lost almost 10% again tonight - but actually the "suspend" process almost didn't use any CPU, SD card still not in phone. Using the built-in battery usage thing, it has cell standby on top, phone idle right below. This is really starting to bother me...
Last night while I turned off APN, Wifi, GPS, etc, I left my phone on as 3G only. I've heard the switch between 3G to 2G causes extra battery drain so I had left the phone on as 3G only. I know 2G is lot less of a battery strain but wonder if it affects cell phone standby. Going to leave my phone on 2G tonight.
I have 3G and sync on. I have weather and feed widgets updated every hour. Plus some other widgets and Google Latitude which I know is using cpu time. My drain is about 1 to 1.2% drain per hour of standby. Firmware DJG4.
I think you dont need to bother too much if battery drains 1-2% per hour on standby (this gives you at least 2-4 days if you use the phone very little). Any more than this means you may have some rouge apps/widgets.
The more critical is the usage time (i.e. with screen on). This is usually like 15-20% drop per hour of use.
Been testing a bit again - this night I had a total of approx. 1% battery used in 9 hours. Still without SD card. I inserted the SD card one hour ago, and I've lost 5-6% already - and suspend process is on top of the list again... Definately something weird going on when SD card is inserted! Please, can anyone test with/without SD card and check for differences?
I spotted this thread and read with interest as last night I noticed my power dropped "unreasonably". I've not started any troubleshooting yet but I am curious about the SD card thing.
Have you tried having the SD card in, but unmounted? Does it still suck powere when unmounted?
Obviously unmounting it is a simpler and quicker process than removing the cover and then physically removing the card.
Mark.
Upgraded to the new Froyo today, seems to be without suspend problems even with SD card. Gotta check how much battery it'll eat during the night.
MoWa22 said:
Upgraded to the new Froyo today, seems to be without suspend problems even with SD card. Gotta check how much battery it'll eat during the night.
Click to expand...
Click to collapse
2% drain during the night. Uhm, I like this.
MoWa22 said:
2% drain during the night. Uhm, I like this.
Click to expand...
Click to collapse
How did you manage that? Everything off? auto-sync off? Wifi? 3g? 2g?
I'm on jm5 with Samset 1.9f and for all the time ive had this phone it has only used 2% battery overnight. Exceptional cases were when i used Fancy Widget, it ate up all my battery overnight leaving me with nothing for the next day. Have stopped using it ever since.
Nowadays, my battery drains heavily when screen is on(when im using the phone). Drains roughly about 1% for every 2 mins im using it, but standby time is still great at 2% overnight...
Qazz~ said:
I'm on jm5 with Samset 1.9f and for all the time ive had this phone it has only used 2% battery overnight. Exceptional cases were when i used Fancy Widget, it ate up all my battery overnight leaving me with nothing for the next day. Have stopped using it ever since.
Nowadays, my battery drains heavily when screen is on(when im using the phone). Drains roughly about 1% for every 2 mins im using it, but standby time is still great at 2% overnight...
Click to expand...
Click to collapse
And do you by any chance run without "external" SD card?
Spybreak said:
How did you manage that? Everything off? auto-sync off? Wifi? 3g? 2g?
Click to expand...
Click to collapse
The new Froyo beta JPC. Same settings as always - WiFi always on (which by the way seems to be default setting on JPC). Everything else standard (it won't switch to 3G while using WiFi).