Related
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
We've uncovered that the 16gb microsdhc card that comes with the T-Mobile USA HD2 is faulty in 2 ways.
1. When the card is used battery life is AWFUL
2. Files are "deleted" but space is not freed.
For example: I have 10.5gb free on the card now. I delete a 2gb file from the card. After deleting I still have 10.5gb free.
Can someone test this a little more for us? Do other cards have the same effects?
Thread this was discovered in: http://forum.xda-developers.com/showthread.php?t=653229
My SD from T-Mobile completely died after 5 days, they're sending me a new one in the mail...it won't recognize on a PC or in a phone at all, lost all of my docs/pics/music/etc...
Remember boys and girls, back up your data!
Oddly enough.. I don't have these issues. My battery drains roughly 1% per hour on standby (a little less actually). I unplugged mine this morning at 8am, and had a day of heavy usage (15 mins talk time, 3 hours browsing, 20 mind of fpsece, 1 hour of music, and 30 mins of video), and I am at 34% as of writing (8:35PM). That's not bad for 12 and a half hours.
Also, when I delete items from my SD card, my remaining space reflects the changes I've made. I have had 0 issues with the card.
toxtrepla said:
Oddly enough.. I don't have these issues. My battery drains roughly 1% per hour on standby (a little less actually). I unplugged mine this morning at 8am, and had a day of heavy usage (15 mins talk time, 3 hours browsing, 20 mind of fpsece, 1 hour of music, and 30 mins of video), and I am at 34% as of writing (8:35PM). That's not bad for 12 and a half hours.
Also, when I delete items from my SD card, my remaining space reflects the changes I've made. I have had 0 issues with the card.
Click to expand...
Click to collapse
I have a feeling that there was a faulty batch.
I had bad battery life with another 16gb sd card that was mine. It's not the sd card that's faulty but the sd socket itself or the drivers. Hopefully it's the drivers. Or something about Sense polling the sd card.
I have bad battery life with an italian hd2 and 16gb SD. I don't think it is something from t-mobile.
I put the 16gb card I was using with my Touch Pro2 in the Tmobile HD2 and it wouldn't even recognize it. I think it even corrupted it because my laptop takes forever to access it.... I will try the 4 gig I have and post if anything changes.
I purchased my HD2 on launch day and so far haven't had an issue with it. I have had issues trying to sync my Win7 64-bit PC and the phone with Active Sync but so far no issues with the card itself. It's like a portable Harddrive to me. I have VLC player installed on my work computers and put XVid's onto the phone and run them off the phone at work without issue.
I'll look further into the space issues with the deleting large files, but I've moved lots of vids on and off and never noticed anything.
toxtrepla said:
Oddly enough.. I don't have these issues. My battery drains roughly 1% per hour on standby (a little less actually). I unplugged mine this morning at 8am, and had a day of heavy usage (15 mins talk time, 3 hours browsing, 20 mind of fpsece, 1 hour of music, and 30 mins of video), and I am at 34% as of writing (8:35PM). That's not bad for 12 and a half hours.
Also, when I delete items from my SD card, my remaining space reflects the changes I've made. I have had 0 issues with the card.
Click to expand...
Click to collapse
Is this for the Tmobile USA HD2? I have terrible battery life on mine and honestly its annoying and frustrating knowing I cant even browse the Web for 15min knowing my battery will drop 10-15%. I have blu-tooth off, and screen brightness at 30% and battery life is still horrible. This has worse battery life than my Sprint Touch Pro 2. This phone reminds me of the horrible battery life of the Sprint Touch. I dont know how you get those amazing numbers.
By the way, I dont have the weather or email autochecking. Everything is set to manual. I send about 30-50 quick texts a day.
really? i can use my phone on the internet for half an hour with the battery dropping oonly ~5%.
this is on wifi.
have you tried a couple discharge/ charge cycles?
skylinepigeon said:
really? i can use my phone on the internet for half an hour with the battery dropping oonly ~5%.
this is on wifi.
have you tried a couple discharge/ charge cycles?
Click to expand...
Click to collapse
I think this is a batch specific problem. I've done discharge and charge cycles and my battery goes down about 8% an hour on standby.
Also, the sd card will not get rid of things deleted off of it. they are gone, but no space is freed.
I'm going to go in to my t-mobile store and try to get a replacement.
Sandisk 16GB cards have problems!
I think Sandisk has been having MAJOR problems with their 16GB MicroSD cards for a while. I had one in my Touch HD and I needed to reformat it about every 6-8 weeks. Major pain. The last time it would not reformat again and after a major effort, Sandisk agreed to replace it (had to send in old one at my cost).
I am convinced they sent me the old one back because it is pretty much DOA!!! If it is not the old one then this one is buggered up too. It worked for a couple of weeks then stopped being seen by my HD. I tried to format it from 3 different PC's and two different (compatible) readers with no luck. I gave up and bought an A-Data 16GB card with no trouble at all!! Over 6 months later and not a single hiccup with that card. Keep in mind that I pretty much just leave the card in so "wear and tear" is non-existent.
My suggestion? Dump it and get a different brand (card that is).
Gordo
PS. Just do a Google search and you will find MANY people having issues with it.
mine works fine so far keep us posted....i deleted alot and i got my mem back
erick10 said:
Is this for the Tmobile USA HD2? I have terrible battery life on mine and honestly its annoying and frustrating knowing I cant even browse the Web for 15min knowing my battery will drop 10-15%. I have blu-tooth off, and screen brightness at 30% and battery life is still horrible. This has worse battery life than my Sprint Touch Pro 2. This phone reminds me of the horrible battery life of the Sprint Touch. I dont know how you get those amazing numbers.
By the way, I dont have the weather or email autochecking. Everything is set to manual. I send about 30-50 quick texts a day.
Click to expand...
Click to collapse
Yes, this is for the TMOUS HD2. What I did:
1. Bought the phone
2. Let the battery die once
3. Full charge, and let the battery die again
4. One more full charge, and then normal usage..
I know battery conditioning isn't exactly needed at this point, but i did it anyway. My email is pushed every 15 minutes, and WIFI is on about 60% of the time. No blutooth, and my weather and facebook are set to manual updates. Stocks are diabled as well.
Obviously BSB tweaks is installed with power management, and automatic screen dimming is on as well. I really didn't do anything out of the ordinary.
My SD card also works outside of the phone, and in my G1 as well..
I have the HD 2-NOT from tmo-and haven't had any issues with my 16 gig sandisk card-ever. And my battery life is really good. Best of about any PDA I've ever had.
toxtrepla said:
Yes, this is for the TMOUS HD2. What I did:
1. Bought the phone
2. Let the battery die once
3. Full charge, and let the battery die again
4. One more full charge, and then normal usage..
I know battery conditioning isn't exactly needed at this point, but i did it anyway. My email is pushed every 15 minutes, and WIFI is on about 60% of the time. No blutooth, and my weather and facebook are set to manual updates. Stocks are diabled as well.
Obviously BSB tweaks is installed with power management, and automatic screen dimming is on as well. I really didn't do anything out of the ordinary.
My SD card also works outside of the phone, and in my G1 as well..
Click to expand...
Click to collapse
Thanks bro. I will do what you did on letting the battery die and charging it full again. Now, isnt it bad to let the battery die fully on li-ion batteries? Im a little worried on this but will still do it. Thanks again.
You can buy another 16GB microSD and copy all data, and leave the original card secured.
Dane-Elec (class 2) is relatively cheap, and it's made by Toshiba (same as Kingston class 2 16GB).
Though it's a bit slow, it appears to be reliable.
mingkee said:
You can buy another 16GB microSD and copy all data, and leave the original card secured.
Dane-Elec (class 2) is relatively cheap, and it's made by Toshiba (same as Kingston class 2 16GB).
Though it's a bit slow, it appears to be reliable.
Click to expand...
Click to collapse
sandisk is super slow... :/ I'm formatting mine. it gives me my space back now, but the damage has been done. only 5gb free with like nothing on it.
I just formatted the card and didn't put my backup back on. I'll report on battery life compared to what I had today.
Should the two posts be merged (or one close) to keep the issue on the same thread?
Couple of points to consider:
1) Having a memory card in a device will always drain it faster. In my netbook, if i leave an SD card in, I drain the battery faster than with out it. And I'm not even accessing the card, its just in.
2) There's a "FilesToBeDeleted" folder on the SD card. I don't know much about the file structure but is that like a virtual recycle bin?
Besides the first day of getting my phone and charging it that day, I've only done two full charge cycles (besides plugging it in to flash a new rom). I've had it off the charger for 9 hours and I lost 66% so far. My battery drain has lessen quite dramatically after I did some tweaks. I plan to reformat my memory card to night to clean it up and move some apps from my memory card to the phone so that its not perpetually hitting the card.
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.
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Hey buzz...you were using activesync over wifi, do I have that correct?
I purchased a WiFi 7.7 on Saturday and have been having some real problems with battery drain, even when it's not in use (e.g. Overnight) to the point where the time gets reset to 12AM and the date to January 1, 2000. I don't appear to lose any apps or home screen settings etc.
In the end, I actually returned the first one I bought, as I was convinced I had a faulty battery.bathe battery issue seemed worse with the first one as it would go from 90% to zero overnight, on standby.
I have a Lexar class 10 microsd in the slot but have very little in the way of apps installed and nothing running (apps) overnight.
Has anyone else seen this behavior?
J.
maybe try not putting your sdcard and test it overnight, i read somewhere here that a faulty sdcard can cause problems
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What does about>battery use say?
Could well be the sdcard though
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crunchie-uk said:
What does about>battery use say?
Could well be the sdcard though
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Totally agree with such cause , as i personally have encountered this with my previous HTC HD2 & the cause was the micro sd card.
Hmm, I did read about sd cards possibly causing battery issues but I've not heard of anyone else, with a 7.7, that sees the date and time reset like my device.
Interestingly, a folder called LOST.DIR is created each time the sd card is formatted in the tab; does this point towards a definite card problem?
When I've checked battery usage before it showed that the android os was the hog but previously it was the screen. Can't remember where I saw that one.
I have another (8GB) sd card so will see how I go with that one and report back.
J.
normal
The LOST.DIR is allway created so thats normal, try resetting to factory default and remove the memory card and use it s litte to test it. If that does not work i would return it
The LOST directory it's part of the file system and can contain data which has become unlinked in error. Ignore it, certain tools can use it to recover from errors but in practice your not likely to need it.
I tried unmounting my class 4 Kingston but it seems any power leakage is negligible for me--I checked using battery monitoring tool.
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Have exactly the same issue with my 7.7
Since owning a tab 7.7 (3G) for about 6 weeks, I have had the sudden overnight drop in battery occur on 5 occasions. Most nights it will drop only 3% on standby overnight but on these occasions it will inexplicably go from 80 or 90% to totally flat in the morning. On 2 of the 5 occasions the date and time have reset. The battery monitoring of the apps "BetterBatteryStats and "SystemPanel" do not show anything that can be interpreted sensibly when this occurs.
I too have a microSD card (Patriot class 10) in my tab and I will now take it out and see if the problem persists.
Similar problem. When sd card is in the slot my tab drains battery very quickly, even when sleeping. (20% per night). Without the battery just 2% per night.
update
update on my issue...
Ive noticed that the battery drain is also accompanied by what is termed "sleep of death" so i downloaded something called "auto airplane mode" (by DON) which switches the wifi off when the sreen is off and the tab "sleeps". So far, so good.
I formatted the 32gb card so will keep testing and update if problems persist.
J.
Quick update...
Since installing that app, I have had ZERO issues.
Hey has anyone noticed their memory card draining their battery. When I pull the memory card and check the battery stats the phone seems to sleep twice as well with the memory card in it. I can unplug my phone leave it for 5 hours and be at 90% with no memory card if I try the same with the memory card in it ill end up at 75%
thatg said:
Hey has anyone noticed their memory card draining their battery. When I pull the memory card and check the battery stats the phone seems to sleep twice as well with the memory card in it. I can unplug my phone leave it for 5 hours and be at 90% with no memory card if I try the same with the memory card in it ill end up at 75%
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Click to collapse
I have a 64gb card -- no noticeable extra drain. Actually I'm on day 2 without a charge, about 45 minutes screen time, and still at 60%.
I actually do, I'm using a note 3 and i didn't have this problem before. I had a water damage and after drying, changing the charging port everything is working fine except my battery would die within hours; even if i Do Not use the phone it would drain within 6-8 hours. I just tried it without the sd card today and so far in 4 hours i have 80+ % and i have over an hour of screen time. Im not sure what the causes this problem, i'm thinking of cleaning the motherboard with 99% Isopropyl Alcohol Antispetic Solution to make sure the is no power leakage.
No... memory card does not cause battery drain, brightness setting needs to be lowered to compensate excessive battery drain. Mine is very low. As far as the phone beung dropped in water, replace the battery before overthinking on cleaning the board..etc..etc...etc
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