Database Users

[HOW-TO] Battery calibration

I've just found that on the desire forum, do you think it will word on ours HD2?
vidler said:
Found this on another forum, I have done this a few times myself (do it whenever i flash a new rom because i always clear battery stats, can't hurt). Have found that it does top it up a fair bit. Before doing this i find my desire will drop to +-93% straight off the charger, however this keeps it 100% longer and i actually get to see the numbers 99-94%
Worth a go in my opinion because it only takes 5 mins of your time and can't hurt the phone... So any minor gain from this process is a win...
Hi *******, I understand your concern regarding battery life on your Nexus One device. The following steps should significantly extend the battery life on your phone. Please connect the phone to the charger with the phone powered on, and allow the phone to charge until the notification LED is green, indicating the device is fully charged. Disconnect the phone from the charger, and power it off. Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the notification LED is green. Disconnect the phone from the charger and power it on. Once the phone is powered completely on, power it off again and reconnect it to the charger until the notification LED is green. Disconnect the phone, power it on, and use it. You need to use this sequence only once. If the issue of battery life on our phone persists, I recommend you contact our HTC accessory department directly.
Click to expand...
Click to collapse
link to the original thread
http://forum.xda-developers.com/showthread.php?t=755903

my guess will be no on this. As i think that the batteries are different. and it might be something with batteries that are in droid devices perhaps.

extasy98002 said:
my guess will be no on this. As i think that the batteries are different. and it might be something with batteries that are in droid devices perhaps.
Click to expand...
Click to collapse
I'm trying right now i'll report as soon as I have an answer!
I think it should work as it's wiping battery stats in android

im trying it too as we speak

I'm pretty sure that calibration will not work currently in android properly. Cottulla posted a few days back that the battery driver is still incomplete and currently only supports reading battery state and that the write too part of the driver has not been implemented. When the driver is complete and has full read/write battery function this procedure should work better.

drewestate said:
I'm pretty sure that calibration will not work currently in android properly. Cottulla posted a few days back that the battery driver is still incomplete and currently only supports reading battery state and that the write too part of the driver has not been implemented. When the driver is complete and has full read/write battery function this procedure should work better.
Click to expand...
Click to collapse
thats' true i didn't know that . it may be impossible to wipe battery stats this way
....

My battery wasnt calibrated properly and wudnt charge over 90%. Someone in this forum told me to switch off and charge until green and then switch it on. Now my battery seems calibrated plus i got 2 days of use on moderate use

drewestate said:
I'm pretty sure that calibration will not work currently in android properly. Cottulla posted a few days back that the battery driver is still incomplete and currently only supports reading battery state and that the write too part of the driver has not been implemented. When the driver is complete and has full read/write battery function this procedure should work better.
Click to expand...
Click to collapse
but ive seen several posts of people calibrating their battery in winmo and reporting better battery life....idk maybe placebo

i will try this too. i myself had an issue today. i'm using chuckyrom right now. i use it at work so i can turn the "phone" off while at work. so it is in airplane mode. i only used the phone today to check the time and played some uno on a break. my battery stayed on 100% for 5 hours. so i turned the phone off, took the battery out for 1 minute. put the battery back in and turned the hd2 on. it was still on 100%. 4 hours later it was down to 94%. i just didn't think that a true battery reading. most days when i have the "phone" turned on at work i only have 10% battery left by the end of the day... just seemed odd to me. idk.

Well, I don't know if this works 'properly' or not but it's certainly had an impact so it's doing something right.
Prior to the calibration I could only charge to 95% or so. Phone now seems to be charging to 100% all the time which is good. Battery life also seems great, not sure if this is down to the calibration or not as I moved to Darkstone V2 (16/08/10) release the day before so don't have a baseline.
FYI, as I type this I'm on 49% battery remaining after being unplugged for 10hrs. Fairly light usage, couple of calls; some texting but quite a lot of browsing and XDA App on 3G and WiFi.
Amazing progress the devs are making. Have been running various builds of Android for a week or so no and haven't yet had to revert to WiMo.
Sent from my HD2 using XDA App
Edit: Couldn't figure out how to take a screenshot without plugging in (and hence losing the 'time since last unplugged stat') - so here's a ropey photo for the inevitable 'screenshot or it didn't happen' remark Seems I've been unplugged for 13hrs not 10... where does the day go?!

Anyone able to do this with mattc Leo + Froyo w/Sense? The charge indicator LED never changes to green.

retain81 said:
Edit: Couldn't figure out how to take a screenshot without plugging in (and hence losing the 'time since last unplugged stat') - so here's a ropey photo for the inevitable 'screenshot or it didn't happen' remark Seems I've been unplugged for 13hrs not 10... where does the day go?!
Click to expand...
Click to collapse
Yeah, its hard to remember to take a screenshot before you plug it in (or in my case...reboot the phone)
You may want to try BatterySnap...its a free app in the market which gives you a great battery widget, plus a lot of really useful graphs and information.
I upgraded to Froyostone on the 12th...thats why the information is only going back that far...but as you can see, 18-19 hours a day at moderate usage is what I am getting on a regular basis
Cheers

Hey guys, I'm trying this method but my battery won't charge past 99%. any suggestions?

interfreak said:
Hey guys, I'm trying this method but my battery won't charge past 99%. any suggestions?
Click to expand...
Click to collapse
Power the phone off...then charge till you get a green light (Maybe even for an extra 10 minutes or so)...power the phone back up and plug into your charger. now it should charge up to 100%
I dont know if the battery itself is limiting the charge, or if its just the battery meter that is not displaying correctly...Anyhow, the above method corrects it for me whan this happens on my phone.

Thanks matey . I've only had my HD2 for five days but thanks to the awesome resource that is the xdadevelopers forum, I'm successfully running Android on my phone. :-D
AND This is my first WM device, have had iPhones for the past 2 years lol!

agentaaron said:
Yeah, its hard to remember to take a screenshot before you plug it in (or in my case...reboot the phone)
You may want to try BatterySnap...its a free app in the market which gives you a great battery widget, plus a lot of really useful graphs and information.
I upgraded to Froyostone on the 12th...thats why the information is only going back that far...but as you can see, 18-19 hours a day at moderate usage is what I am getting on a regular basis
Cheers
Click to expand...
Click to collapse
Cheers for the heads up - that looks like a great app! Downloading now...

quick question , do we do this while runnning android or windows mobile?

I did it from Android and seems to have worked a treat.

alantak said:
Anyone able to do this with mattc Leo + Froyo
w/Sense? The charge indicator LED never changes to green.
Click to expand...
Click to collapse
Just to confirm, I'm on ChuckyDroidROM with mattc Leo + Froyo w/Sense 1.5b.
- I can charge to green when the phone is powered off.
- I cannot charge to green in ChuckyDroidROM WM (says 100 in Battery screen, just no green LED)
- I cannot charge to green in mattc Leo + Froyo
w/Sense (stays at 98 in Battery screen)

Hi i am on ChuckyDroid ROM 2.12.50 Radio and darkstones 2.1 build.
have don successfully the trick in post 1.
Now having 100% in the taskbar and i will report if the battery life have improved.

Simple Trick To Get 4-11ma In Standby

First, sorry for the new post on this, but I have not seen this mentioned. Didn't want it buried before it could help anyone.
I have used pretty much every android ROM out now, and for some strange reason they each have one constant.
ROMS which give 54-67ma on standby on first boot can be reset a couple of times until they reach the 4-11ma in standby point. Usually takes 1-3 resets.
Now, I'm not sure why this is all I know is it works. And yes, there is a huge amount of difference between 5+ and 50+ma.

I can surely confirm this
Hatefly said:
First, sorry for the new post on this, but I have not seen this mentioned. Didn't want it buried before it could help anyone.
I have used pretty much every android ROM out now, and for some strange reason they each have one constant.
ROMS which give 54-67ma on standby on first boot can be reset a couple of times until they reach the 4-11ma in standby point. Usually takes 1-3 resets.
Now, I'm not sure why this is all I know is it works. And yes, there is a huge amount of difference between 5+ and 50+ma.
Click to expand...
Click to collapse
This is most definitely true, might sound illogical or fake but I personally took battery logs when my drain was 58mA but could not find anything, I changed Kernels just to observe the same and I finally gave up but I accidentally had to reset my phone a few times as I forgot to put it on charge/freeze then after a few days I happened to see terrific battery improvement 5-8mA, I didn't know why but then I understood it was because of the resets..

Good to see I'm not going crazy. Like I said, I tried this with a bunch of different ROMS. All the same.
So if you are having bat problems. Try a few resets and see how that works for you before giving up on the ROM.
Oh, I might also mention I am not running any sort of set cpu app.

Check again
Hatefly said:
Good to see I'm not going crazy. Like I said, I tried this with a bunch of different ROMS. All the same.
So if you are having bat problems. Try a few resets and see how that works for you before giving up on the ROM.
Oh, I might also mention I am not running any sort of set cpu app.
Click to expand...
Click to collapse
Funny that just the both of us are populating this thread.. But yes I too do not use any Set CPU or Task Killers..
Currently on
Mattc Leo 1.8 with hastarins r7.6 with 5-7mA battery drain on Stand by (Wifi, GPS,Bluetooth off, data on(but disconnects sometimes))....

I can confirm this too.

Im a little new to Android on the HD2, running Mdeejay eVo Sense v. 2.3 rEVOlution 7.7 Hasteran at the moment.
Im finding the battery life on v2.3 less then on v.2.2 so I'll try a few resets & see if it improves, thanks.
Oh, is it really necessary to run SetCPU or a task killer?
Im forever closing tasks with task killer & the though of a task being auto closed when I turn the screen off is comforting, but is it best to just leave things to the kernal?

The most consistent way I have found to get 4-5ma on standby was to use exceller's android loader set autoboot android and 3 secs.

I can confirm this too.
I am trying dual boot (http://forum.xda-developers.com/showthread.php?t=723200) to boot into Android right away to see if that leads to more consistent standby battery drain. (this was mentioned on another thread.)
I have abandoned TaskKiller and AutoKiller, made no diff in battery drain for me.
I so still use SetCPU to slow the CPU when battery gets low.

Juno-First said:
Im a little new to Android on the HD2, running Mdeejay eVo Sense v. 2.3 rEVOlution 7.7 Hasteran at the moment.
Im finding the battery life on v2.3 less then on v.2.2 so I'll try a few resets & see if it improves, thanks.
Oh, is it really necessary to run SetCPU or a task killer?
Im forever closing tasks with task killer & the though of a task being auto closed when I turn the screen off is comforting, but is it best to just leave things to the kernal?
Click to expand...
Click to collapse
For better battery life, setCPU is a MUST! Creating different profiles to change the cpu clock is huge in conserving battery; especially, the the screen off profile.
Ditch ATK and download Watchdog instead.

even hastarin himself is using android without setcpu. with kernels 7.6, 7.7 I get same batt juice as with setcpu, BUT less stuttering in general, i.e. android runs more smoothly.

Honestly I have found that every ROM I have used set cpu was a detriment to battery life.
I'm still not 100% that even task killer is helpful in some cases. I think that on the other hand has to do more with how you use your phone and what apps than anything. Some people can prob get away with it.

SetCPU is pretty much pointless now with the latest kernels, only thing it's useful for is overclocking, but even without it I've not found anything that can't run. Even graphically intensive games like Reckless Racing run perfectly fine at stock CPU speeds.
I've just updated last night to ShubCraft 2.0 DropMode and I get 6ma in standby, my battery dropped 9 percent in 8 hours of standby while I slept, and after a full day of using my phone from about 9am to 6pm tonight (texting, calls, wifi use, 3G use, picture taking, playing a few games and listening to over an hour of music) my battery only just hit 50% at 6pm. This is without SetCPU.

What i've done is just swap out the micro sd card for another one. I had the stock 16gb and replaced it with an 8gb micro sd card and i'm getting fantastic results.
Without any type of task killers or Set Cpu, i'm constantly getting 3ma - 9ma stand by readings from Current Widget.
I also downloaded Juice Plotter from the Market ( what a fantastic app IMO ) and it tells you how much time you have left on your battery as well as a graph detailing the percentage of power battery has used.
I can go a day to a day and a half with out charging my phone. I am in complete Android Heaven.
NOTE: Keep in mind that when booting into Android, when you hit the Haret, make sure that the hard key light are on.
I also have the auto sync off to save battery as well.

To get the 4-11 mA, just make sure the keypad lights on the phone are on when booting haret.(pretty much, boot asap)
Sent from my HTC HD2 using XDA App

alantak said:
I can confirm this too.
I am trying dual boot (http://forum.xda-developers.com/showthread.php?t=723200) to boot into Android right away to see if that leads to more consistent standby battery drain. (this was mentioned on another thread.)
Click to expand...
Click to collapse
After several reboots this is holding true.
Before when I making sure the keypad lights were on before booting Android I would still occasionally get bad standby drain, so I think that is myth.

Exceller's auto boot app = no battery drain!!!
szfjcr said:
The most consistent way I have found to get 4-5ma on standby was to use exceller's android loader set autoboot android and 3 secs.
Click to expand...
Click to collapse
GOLD!!!! PURE GOLD!!! Been trying to preach this for days now! The battery drain is eliminated by booting Android before WM/Sense fully boots. Has nothing to do with keypad lights being on or off. Hence, use Exceller's auto boot app set to boot 3 secs and restart your phone and let it auto boot. Battery drain ELIMINATED!!!!!
secano said:
To get the 4-11 mA, just make sure the keypad lights on the phone are on when booting haret.(pretty much, boot asap)
Sent from my HTC HD2 using XDA App
Click to expand...
Click to collapse
See above comment.

anush.isaac said:
This is most definitely true, might sound illogical or fake but I personally took battery logs when my drain was 58mA but could not find anything, I changed Kernels just to observe the same and I finally gave up but I accidentally had to reset my phone a few times as I forgot to put it on charge/freeze then after a few days I happened to see terrific battery improvement 5-8mA, I didn't know why but then I understood it was because of the resets..
Click to expand...
Click to collapse
When you guys say do a few resets do you mean pull the battery or just use the off menu?

danielefeldt said:
When you guys say do a few resets do you mean pull the battery or just use the off menu?
Click to expand...
Click to collapse
Just do a hot reset if your android buid has that option, even better power off and and reboot from windows

I'm using bangster v1.5 with hasterin 7.7. I only get 2-3 ma standby.
Sent from my HTC HD2 using XDA App

For me the problem was the SD card. I formatted it with 4098 (or similar)block size, copied the Android build back over the top and bang from 115-170mA to 4-9mA on standby!!! WOW.

[Q] Battery Issues;BSOD/SOD;EBL?

So, I'm at a loss of what to do here. No matter what settings I seem to use I can't get good/decent battery life.
In fact, I get terrible battery life. With light to moderate usage I have to charge my phone at least two times a day, mostly three. Current widget reads that at standby I'm anywhere between 55mA-70mA and when in use 200mA-500mA. When charging it reaches 400mA-600mA
I see everyone talking about being able to get 5-10mA and I'm amazed at this. I've searched and read most "Battery saver" threads and none of it seems to work.
I was originally using Chucky rom lite and when I noticed the drain was abnormal I switched to the set up that chiasoft uses in his ReadMe for the ROM (stock 2.10ROM/2.08 radio).
Although since switching to the stock WinMo ROM I had repeated BSOD and SOD issues. To the point that it became unusable. I switched over to latest Energy ROM.I installed EBL and on both Stock and this Energy ROM. I am still having BSOD/SOD problems. Could it be the EBL? I plan on upgrading the radio to 2.12 in a few after I test out this EBL theory.
My setup as of this post is this:
WinMo ROM: Energy.BLACKSTONE.21916.Sense2.5.Nov.08 (Switched back to Stock 2.10)
Radio: 2.08.50.08_2 (Switched to 2.12)
Android: MooMoo Froyostone Sense 3.2 w/hastrain kernel
SetCPU:
998max/245min Ondemand on boot
Profiles: Screen off; Priority 100; 384max/245min ondemand
Battery <25% 576max/245min Priority 0 ondemand
Sampling 20000; Up Threshold 40
Advanced Task Killer:
Kill Level Agressive
I really don't want my LI-ON battery to die before I've even had the phone for the year. So if anyone can think of anything to help I'd be ever so grateful.
And of course, thanks to all the people who make all this possible.
(Sorry for the tl;dr post. I wanted to give as much info as possible.)

when you fully charge your batter what is your mV ? use the battery life widget to determine this. If it is not nowhere 4000mV once fully charged, you might need to consider buying a replacement battery.
btw. my mA reading is actually worst than yours. Might have to calibrate the battery again later.

mofoahh said:
when you fully charge your batter what is your mV ? use the battery life widget to determine this. If it is not nowhere 4000mV once fully charged, you might need to consider buying a replacement battery.
btw. my mA reading is actually worst than yours. Might have to calibrate the battery again later.
Click to expand...
Click to collapse
idk what it is fully charged. I'll be sure to check it later though. How do you calibrate the battery?
Also, I realized that I made an oversight on my part. When I switched to the stock WinMo rom I hadn't realized fully that it changed my Radio to 2.08 even though I posted it.
The rom chef recommends 2.10ROM/2.12 Radio, so that's what I switched to to check out that combination.

btw change it to interactive not on demand.
you charge the battery when your phone is off. Till your charge indicator turns green.
Once that is off. you can use root explorer or adb and go to rm/data/system delete the batterystats.bin leave your phone plugged in while you are deleting the batterystats.bin file
i prefer root explorer. but its not free and your device has to be rooted.
let the phone drain the battery till its dead and turn it on again to make sure it is completely dead.
charge the phone like you would usually afterwards.

mofoahh said:
btw change it to interactive not on demand.
you charge the battery when your phone is off. Till your charge indicator turns green.
Once that is off. you can use root explorer or adb and go to rm/data/system delete the batterystats.bin leave your phone plugged in while you are deleting the batterystats.bin file
i prefer root explorer. but its not free and your device has to be rooted.
let the phone drain the battery till its dead and turn it on again to make sure it is completely dead.
charge the phone like you would usually afterwards.
Click to expand...
Click to collapse
I don't have interactive in my options.

what version are you running?

mofoahh said:
what version are you running?
Click to expand...
Click to collapse
2.03 I got it through here.
Just installed 2.04 and there still isn't an interactive.

thats odd. because im on 2.0.4 also and I am able to select interactive.
btw i followed this guide for the battery conditioning.
http://forum.xda-developers.com/showthread.php?t=827762&highlight=ultimate+setcpu
and this one for my setcpu settings.
http://forum.xda-developers.com/showpost.php?p=8246854&postcount=4

mofoahh said:
thats odd. because im on 2.0.4 also and I am able to select interactive.
btw i followed this guide for the battery conditioning.
http://forum.xda-developers.com/showthread.php?t=827762&highlight=ultimate+setcpu
and this one for my setcpu settings.
http://forum.xda-developers.com/showpost.php?p=8246854&postcount=4
Click to expand...
Click to collapse
Yeah. No interactive settings. Also, that guide recommends 1190 max, but mine only goes up to 998.
Also, I finally got it to down to 7mA in standby. When I changed the radio to 2.12 and using a 2.10 stock WinMo rom.

no issues here getting 48 hours of light use, or a full 24 of moderate use...

I've yet to "condition" my battery. I'm worried it'll do more harm than good. Especially since I just got it finally to a decent mA draw. Although I'm worried my phone won't charge up to 100%. Always stop at 95.
Is conditioning really necessary/important?

easy answer... whats your full charge voltage? shuld be 4.2
if not , your looseing batt life..

t1h5ta3 said:
easy answer... whats your full charge voltage? shuld be 4.2
if not , your looseing batt life..
Click to expand...
Click to collapse
yes full charge voltage should be around 4.2. Try charging it with the phone OFF till your charge indicator is green. This way you can achieve a full charge.
By the way how the hell are you getting 48 hours on light usage?? excuse my language. What are your setcpu settings, configurations. etc.

mofoahh said:
yes full charge voltage should be around 4.2. Try charging it with the phone OFF till your charge indicator is green. This way you can achieve a full charge.
By the way how the hell are you getting 48 hours on light usage?? excuse my language. What are your setcpu settings, configurations. etc.
Click to expand...
Click to collapse
Yeah, 48 hours seems improbable. I finally got it down to 7-10mA on standby, and I think it charges up to 4.2 but I'll find out for sure tonight.

same
I had the same problem, make sure you use EBL android launcher and set to autoboot at 3 seconds. Make sure you restart your phone anytime youw ant to load android. I assure you this will work.

My HD2, like all others can be flattened in 2-3 hours with windows/android if used hard, the difference seems to be on very light usage/standby win mobile could last 4 days... with everything turned off and basically not used Android would struggle to last 2 days !
Same phone same network/signal levels etc, can only be poor power management within Android, and I think that means voltages for all the processor and comms modules, not just a simple case of turning down speeds.
What do others think ?

Update: Upon switching to WinMo:2.10 and Radio:2.12+ MooMoo's MMS fixed froystone3.2 I was achieving 6-10mA in standby. The phone would last all day with a two-three hour charging period with moderate usage. Low battery use, rare DC's. Perfect. Best build I've used so far.
I'm noticing a new problem however, and I wonder if it's happened to Chiasoft who recommended this build. I'm getting serious touch screen freezes since last night. Anytime before that the set up was working AMAZINGLY.
Now? It's almost unusable sometimes. This morning it was happening in Android so I switched to WinMo and surprisingly enough it happened in there too. So I read touch freezes are Radio problems mostly. Is this true? Should I switch to a new radio? I'm confused as to why it would just randomly start happening though and worried it would mess up my battery troubles I just solved.
Any advice?

Hmm. I noticed that it almost always freezes when I hold down the end home button to turn off the phone or data or to silence it. I can't actually use the touch screen again until I hit the button again to put it to sleep.
I wonder if it's hardware related because it was happening in WinMo that way as well.

Okay, so now the entire adroid system is acting up mostly related to the touchscreen. Like I use the calculator and it appears that i'm holding a button down. Or I try to make a call and it's not responding. It appears that when I hit end call button repeatedly it allows me to unlock the phone. But when holding down the end call button to get to the Power Off screen nothing in that menu is responsive.
It seems... software related, but I'm not sure. Any info would be helpful. I'm going to reformat my card and reinstall droid and see what happens.
So, called t-mobile. They're sending me a new replacer phone. Oh well. We'll see how that one goes.

pretzdothack said:
Okay, so now the entire adroid system is acting up mostly related to the touchscreen. Like I use the calculator and it appears that i'm holding a button down. Or I try to make a call and it's not responding. It appears that when I hit end call button repeatedly it allows me to unlock the phone. But when holding down the end call button to get to the Power Off screen nothing in that menu is responsive.
It seems... software related, but I'm not sure. Any info would be helpful. I'm going to reformat my card and reinstall droid and see what happens.
So, called t-mobile. They're sending me a new replacer phone. Oh well. We'll see how that one goes.
Click to expand...
Click to collapse
I give you only a very short suggestion
You have just to DELETE SETCPU
and delete ANY TASK KILLER (you can keep it just to close any apps that could hang, but not to "free up ram")
Android is not Windows, you dont need to free up ram, and you dont need to overclock/undervolt to gain some minutes of battlife despite stability.
Talk to any Dev and they will confirm this.
Good Luck

method for fix HD2 SD android standby battery drain 50+ma

This method is suitable for hd2 SD Android, not test on NAND mode. If you encounter problems as the standby battery consumption(50+ma), you can try this method to solve:
If you reboot android and monitor the standby battery drain is 3~5ma,do not happy too early and think that you get a good android rom, because after reboot,it will likely become 50+ma;
If you reboot android and monitor the standby battery drain is more than 50ma, do not despair, don't think that this version is so bad and you need to replace another immediately, because you can use this method below to fix:
Steps:
1, reboot WM, don't hurry, wait 1 minute, let's WM fully reboot, especially some softwares installed on SD but need to run when reboot. press the power button to turn off screen(not shutdown mobile), open the back cover, remove the TF card, the screen will light up, tap the power button again to turn off the screen (not shutdown), wait 10 seconds, insert the tf card, the screen lights up again, now boot android and monitor standby battery consumption, 90% under 10ma ----- In short, that is, before boot android, pull out and plug in TF card;
2, if fail, you need pull out and plug in battery before reboot WM, then repeat the above steps;
If works, please say thanks
Don't charger when monitor standby battery drain, please use currentwidget monitor and use its log function to record. What is "the standby power consumption" pls consult Mr. Google.

Other users reported that changing the sd to another one solved the high drain in standby for them, so you basically are saying the same.
I use the original 2GB card the few times I decide to test android, because first time I tested superram build, my 16GB card got wiped for some unknown reason; I may as well see if your method changes anything.

Worked for me! Tnx!
Had 50+mA wen using android sd, very annoying because in the beginning I had no problems.
Now it's back on 8mA! Tnx!

Thanks
Thanks for the solution, seems to work every now and then when i get high drain on standby ^^ thanks

At first try, this seems to work well. I was getting 60+ ma usage in standby with Darkstone's SuperRAM build, even with a fresh install. Going through this little bit of voodoo got my standby usage down to the 5-8ma range. Thanks for finding this, though I don't like thinking about how much trial and error it took to discover.
I just hope I don't have to do this every time I reboot.
Thanks...

Was getting low power usage through this morning, when I unplugged the phone from the charger. I had left Android running on the phone overnight. I discovered that the HD2 was back to using 60ma when I got back to work. Repeated the magic spell, and I was back down to 8ma in standby. Really strange. Does anyone have any kind of explanation for this behavior?

Wow thx work like a charm.
imrazor - My theory is by pulling the SD card out in WM you stop all applications that use the SD and when you boot android the SD card is only used by android. Well thats what I think ^^
The point is it works and we now have better MA in standby.

Sort of works
The SD fix does take the standby drain to around 7mA, however I can only wake the phone once. The next time I try to power up, my phone never cuts on, and I have to pull the battery.

This is exactly what I am looking for. I will try it. Is it possible to write a program in WM to do this instead of pulling out SD Card?

Hello,
cygwinxp said:
This is exactly what I am looking for. I will try it. Is it possible to write a program in WM to do this instead of pulling out SD Card?
Click to expand...
Click to collapse
That's an amazing solution.
If someone can tell me what to kill, I can try do create this nice prog...

Any idea why it works?

Didn work for me... Dont know did I do it right? I normaly shutdown my phone, do those things with the sd card (plug in plug out) and when I start android continuesly 50-70mA on stanby.. I did the battery thing and still the same...

Have MIUI SD ROM.
Current changed from time to time from 5-8mA to 50-70mA and back.
Killing all applications sometime give effect to decrease current.
Switching off autolight sensor sometime give effect to decrease current.
Sometime call in/call out give increase current.
Switching off in-pocket and near-ear sensors (call settings) give good effect to decrease current.
...
continue testiing
my head is overheat

switching on near-ear sensor after call return power consumption to 60-70mA.
switching off near-ear sensor not give decrease current.
call in/out not give effect.
sw on/off auto backlight not give effect.
sometime callout decrease current to 6-8mA,
but best result give system restart

Turn off HTC Sense
flap said:
If someone can tell me what to kill, I can try do create this nice prog...
Click to expand...
Click to collapse
HD2 SD android standby battery drain 50+ma comes from 3 places:
1) What was running in Windows Mobile when you boot Android
2) The Android ROM you use
3) What is running in Android
1) The answer is turn off HTC Sense
When I turn off HTC Sense in Windows Mobile I get much better battery drain in Android. If I do not turn off HTC Sense then I usually get standby battery drain 50+ma. So flap can you create a nice prog to turn off HTC Sense etc. and then boot Android?
HTC Sense is not the only program. In addition to turning off Sense first, running a RAM cleaner (e.g. cleanRAM) in Windows Mobile will also help or - even better - reboot Windows Mobile without HTC Sense before launching Android.
2) use Portadroid to easily try different SD Android ROMs
3) see BetterBatteryStats
Cheers
Tom

I started having this problem one day randomly (after i installed some new apps). However, even after i installed all the new updates and apps the problem persisted. I tried this method you mentioned and now my battery standby drainage is back to 7mA (instead of 30-60mA). Don't know how it works, but it solved my problem. I have since reinstalled the apps that I wanted and it has been working fine for 24hours...

thanks man

hi i just ask you what mean Tf Crad? SD card or SIM card

Hello, it doesn't work for my HTC Leo. I have battery drain 230-800 ma on the latest MIUI SD ROM. Any idea what should I do next? Maybe I must change the program, that measure the battery current? Now I'm using CurrentWidget.

Thank you, I will test it.

battery issude

i have iflash Pdaimatejam Rom to my hd2 i noticed that battery drain so quikly i seach about issue and use the rest in HSPL after htat battery last for 24 hours but another problem that sometimes when i am charging i left phone charging for more than 7 hours but only charged for 18% only and the led light is flahing between orange and yellow so is there is any way to solve this problem?
thanks

edoctorxt5 said:
i have iflash Pdaimatejam Rom to my hd2 i noticed that battery drain so quikly i seach about issue and use the rest in HSPL after htat battery last for 24 hours but another problem that sometimes when i am charging i left phone charging for more than 7 hours but only charged for 18% only and the led light is flahing between orange and yellow so is there is any way to solve this problem?
thanks
Click to expand...
Click to collapse
first unbelievable you couldn't find any.info as there are many, many threads.in q&a about battery.issues and also in pdaj's rom thread!!!
second, did you do a hard reset after flash? third, it takes a few charge/discharge cycles for wp7 and the battery to sync. fourth, the blinking led light means your phone/battery is overheated. unplug charger...turn off phone to cool.
and by discharge it means until the led blinks red.

hi guys.. i use this topic since my issue is battery related. firts sorry for my english.
btw..i've flashed Pdaimatejam Rom but aftew i few issue i had to change my microsd with a brand new SanDisk microsd.. now it works very smooth and without problem! but the battery drain is too high.. i use hardware radio 2.15.50.14 + 5.51 software radio..i made ​​several charging cycles from 0% to 100% with and without softreset but the battery go down to 0% in about 10h on standby with wifi off.. bluetooth off.. gps off.. on EDGE and without phone connection. On android i reach almost 2 days on standby! someone can help me.. and what do you mean with this? -->
edoctorxt5 said:
use the rest in HSPL after htat battery last for 24 hours
Click to expand...
Click to collapse
what do you mean with "use the rest in HSPL"?
thanks in advance!

HSPL dont have anything with battery, only if he mean charging in bootscreen....
also few days ago i write in Pdaimatejam ROM topic (as many time before) advises for saving battery life... use camera trick, try lover hardware radio to 2.12
try disable background tasks
also sdcard also can be guilty for battery drain....

thanks dxdy i've readed most of your topic and take some hints from that.. but the result is always like my previous post!
i use camera trick but honestly in my case it seems to cause more drain!
i can try to flash 2.12.. I haven't done before because i've readed that make a poor connection.
for background task (i think from LEO advanced.. something like dehydrate right?).. i think that there are already disabled!
and two little stupid off topic questions:
1)in "LEO Advanced" red switch means active or not active?
2) do you know some app like airdroid for wp7?

no, go to settings - applications - background tasks

well.. made it! but i can disable a specific app at time.. not all! btw a little question about dehydrate. i've readed around that if dehydrateOnPause reg key is set on 3 (i understand it means disabled).. it can save more battery.. it's right?

daevoq said:
well.. made it! but i can disable app specifically.. not all! btw a little question about dehydrate. i've readed around that if dehydrateOnPause reg key is set on 3 (i understand it means disabled).. it can save more battery.. it's right?
Click to expand...
Click to collapse
yes and no... depend... this only allow how many apps can run in background... default for WP7 is 3... but if you dont leave apps opened (paused) in background this not mean nothing...

understood..
and if i set it to 0?
and.. there is a way to kill an app on wp7? sorry for my noob questions.. but i use wp7 since few days..

daevoq said:
understood..
and if i set it to 0?
and.. there is a way to kill an app on wp7? sorry for my noob questions.. but i use wp7 since few days..
Click to expand...
Click to collapse
leave 3... 3 is default for WP7 devices
you kill app when press back key for exit when press home you only pause app.... when long press back button you show how many apps is running in background

can i ask you how long your battery?