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Killing my battery !!

Rooted and installed assonance 5.2 and put on some other apps now something is draining my battery like a mother!!! I literally watched it go down by 10% in minutes. Anyone else experienced this? How do I find out which app is the cause of this without having to uninstall each app?
Sent from my SAMSUNG-SGH-I897 using XDA App

download OS monitor or system panel and see which apps are consuming or hogging cpu

I did that and nothing looks out of the ordinary. I'm so frustrated!!! Could it be the rom or is it an app?
Sent from my SAMSUNG-SGH-I897 using XDA App

No help here...........I got tired of the battery drain from all the custom ROM's I tried (just about all of them) and am now back to JH7, getting almost 32 hours before being drained. I have done some tweaking to it, got the GPS working great and everything works whereas with some of the ROM's something had to be sacrificed.
Here are some screenshots:
http://forum.xda-developers.com/showpost.php?p=10380882&postcount=1059
http://forum.xda-developers.com/showpost.php?p=10380882&postcount=1059
In the last screenshot it shows 30 seconds to lock, all day today I was around 10 seconds to lock and 10 satellites.

jaydeekay said:
Rooted and installed assonance 5.2 and put on some other apps now something is draining my battery like a mother!!! I literally watched it go down by 10% in minutes. Anyone else experienced this? How do I find out which app is the cause of this without having to uninstall each app?
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Did you flash with 100% battery and then calibrate your battery afterward?

No it wasn't at 100%... And no I didn't calibrate the battery... Was I supposed to??
Sent from my SAMSUNG-SGH-I897 using XDA App

jaydeekay said:
No it wasn't at 100%... And no I didn't calibrate the battery... Was I supposed to??
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
It's certainly worth a shot. I had the same thing happen to me once a while ago and it seriously extended my battery. There's some threads here that describe the process which essentially involves discharging and charging your phone off and on and deleting the battery stats through CWM.
I always flash a ROM with a battery showing 100% and I typically net pretty good battery life doing it this way.

jaydeekay said:
No it wasn't at 100%... And no I didn't calibrate the battery... Was I supposed to??
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Always recommended to do so whenever you flash...........YMMV

Here's a great thread for you to look at.
http://forum.xda-developers.com/showthread.php?t=765656

So can I just calibrate it now or do I have to reflash my phone?
Sent from my SAMSUNG-SGH-I897 using XDA App

jaydeekay said:
So can I just calibrate it now or do I have to reflash my phone?
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
You can calibrate at any time. No need to reflash.

Maybe before you reflash, please wipe of the factory settings and partition and also the Dalvik cache and battery stats in "Advanced" settings using your Clockwork.

Ok I'm trying one of those recalibrating methods. Maybe I really should've read everything before I flashed... but there was sooooooo many stuff to read and watch...
When you say "advanced" in clockwork, thats the rom manager correct? when i look through it it says advanced mode for premium users only... is that the right app?
nissy86 said:
Maybe before you reflash, please wipe of the factory settings and partition and also the Dalvik cache and battery stats in "Advanced" settings using your Clockwork.
Click to expand...
Click to collapse

I'm sorry but now that I search through the forum I see that its a common problem and it's something I missed. I'm totally new to android (smartphones period) phones and flashing and stuff. Thanks for all the helpful tips!

One question though. When you delete the batterystats.bin file, does it get recreated at a later point or never again?
Sent from my SAMSUNG-SGH-I897 using XDA App

jaydeekay said:
One question though. When you delete the batterystats.bin file, does it get recreated at a later point or never again?
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
It gets recreated, yes.

Have to remember as well that each user may see different results with the same Rom. Kernels. Modems, Roms perform differently from one device to another based on a multitude of factors. After you have done the basic steps to try to stabilize battery drain, I would then begin by experimenting with different kernels and modems.
Idle drain is the test I normally use after ensuring proper battery readings, sensor usage and app CPU behavior. Many times simply flashing to another kernel shows immediate results.
Sent from my ADR6300 using XDA App

I've yet to learn about flashing kernels. I'm now running perception 10.2
Sent from my SGH-I897 using XDA App

Download the sgs kernel flasher app from market. Go to kernel thread off your choice in captivate development an download kernel, placing the file on your internal sd card. Run the app which is poetry self explanatory.

Definitely try a different kernal or modem. Generally, you can find feedback in the rom thread about what kernal or modem gives the best battery life.
I haven't used Assonance but I had to flash the firebird 2 kernal to get good battery life with Perception 10.2. Keep trying.
Sent from my SGH-I897 using XDA App

Calibrate battery

Hi guys, i'm having the issue with my battery is only capable of charging till 98%. I mean, it's not that much of a problem, but is there any way to calibrate the battery again? Thanks in advance,
Juliano
Sent from my LG-P990 using XDA Premium App

julianosplendido said:
Hi guys, i'm having the issue with my battery is only capable of charging till 98%. I mean, it's not that much of a problem, but is there any way to calibrate the battery again? Thanks in advance,
Juliano
Sent from my LG-P990 using XDA Premium App
Click to expand...
Click to collapse
Try to completely empty the battery by rebooting after your phone shuts down because of low battery. Keep rebooting it after it shuts down again till it doesn't want to boot anymore. Till the battery is completely empty.
Then Charge it again and leave it on the charger for more then 20 hours.
Don't know if it's gonna work but give it a try
EDIT: Q? are you using a custom ROM ??

Ok I'll give it a try, thank you. I have this problem since i flashed a modaco firmware and wiped my battery cache via cwm. Anyone else having those issues?
Sent from my LG-P990 using XDA Premium App

julianosplendido said:
Ok I'll give it a try, thank you. I have this problem since i flashed a modaco firmware and wiped my battery cache via cwm. Anyone else having those issues?
Sent from my LG-P990 using XDA Premium App
Click to expand...
Click to collapse
The problem can also be related to this :
http://forum.xda-developers.com/showthread.php?t=1028811

Thanks, feels better knowing i'm not the only one trying out some of the advice given in this thread. So long,
Greets
Sent from my LG-P990 using XDA Premium App

I reverted back to stock on my O2X and I can get 48 hours out of the battery. I had the same issue as you and reverting back to stock seemed to cure it too.
Just an FYI I thought I'd share.
Sent from my LG-P990 using XDA App

mcnob said:
I reverted back to stock on my O2X and I can get 48 hours out of the battery. I had the same issue as you and reverting back to stock seemed to cure it too.
Just an FYI I thought I'd share.
Sent from my LG-P990 using XDA App
Click to expand...
Click to collapse
48hours when you are using him or 48h max on standby

USE phone heavily. Use it till the system turns OFF automatically
Turn OFF phone
Charge till it says it is FULL
Start phone in RECOVERY Mode
Select Advanced CWM Features
Select Wipe Battery Stats
RESTART phone

v0dKa.mL said:
USE phone heavily. Use it till the system turns OFF automatically
Turn OFF phone
Charge till it says it is FULL
Start phone in RECOVERY Mode
Select Advanced CWM Features
Select Wipe Battery Stats
RESTART phone
Click to expand...
Click to collapse
Solved ?

kefjeuh93 said:
48hours when you are using him or 48h max on standby
Click to expand...
Click to collapse
Sorry, should have given more detail. That 48 hours is with general browsing and social networking with a fair bit of video recording and camera use. No 3G though. All data was over WiFi.
Certainly not just stand-by though.
Sent from my LG-P990 using XDA App

mcnob said:
Sorry, should have given more detail. That 48 hours is with general browsing and social networking with a fair bit of video recording and camera use. No 3G though. All data was over WiFi.
Certainly not just stand-by though.
Sent from my LG-P990 using XDA App
Click to expand...
Click to collapse
No full power use of the processor i understand

i thought i had the problem too with the MDC fear 5.3 but it just jumped from 98% to 100 after 10 minutes so its probably a mistake which solved itselve if you charge it long enough.

v0dKa.mL said:
USE phone heavily. Use it till the system turns OFF automatically
Turn OFF phone
Charge till it says it is FULL
Start phone in RECOVERY Mode
Select Advanced CWM Features
Select Wipe Battery Stats
RESTART phone
Click to expand...
Click to collapse
Didn't work for me, i did it exactly this way, charged it for about 10 hours, booted in recovery, wiped the battery stats and it stills shows 97% when i boot it. However, it's not a disastrous failure, i can live with it and hopefully it gets fixed sometime.

Finally, i found the solution for me. After i reflashed the stock rom, where this problem doesn't occur, i flashed a modaco rom again WITHOUT WIPING THE BATTERY STATS. Now it's all working fine, i charged my phone to 100% a few minutes ago. Hope it will help some of the people, who are still having problems.

Does kernel version has anything to do with this issue?

Don't think so, i tried the stock, Paul's kernel from FR12 and the EternityProject Kernels 1.3 and 1.4, it was all the same until i tried reflashing without wiping battery stats. For the record, i flashed the new TK-Rom V 0.6 with the EternityProject Kernel 1.4.

[Q]Android-system 29% of Battery JVQ

Hi,
I recently updated my phone to JVQ but now i'm having a battery drain. The cause (i think) is the high percentage of the android-system. By now its 29% and that's alot. I already deleted the programe software-updater so that can't be the trouble maker anymore. Does someone has a fix for this?
Greetings

Micheltje13 said:
Hi,
I recently updated my phone to JVQ but now i'm having a battery drain. The cause (i think) is the high percentage of the android-system. By now its 29% and that's alot. I already deleted the programe software-updater so that can't be the trouble maker anymore. Does someone has a fix for this?
Greetings
Click to expand...
Click to collapse
Yeah....let your battery go completely dead, then try turning on to make sure its dead
Leave your phone off and then plug in charger until its full, then unplug and plug in again to make sure its full
Repeat these steps 2-3 times and it should be all fixed for you
Also....using titanium backup, freeze the program called "Samsung account" that's another culprit in the "battery drain crisis"
Sent from my GT-I9000 using XDA Premium App

I have already done that a few times, friend of mine has completely the same setup as i have and my battery is down twice as fast. Maybe it's the battery itself?

Micheltje13 said:
I have already done that a few times, friend of mine has completely the same setup as i have and my battery is down twice as fast. Maybe it's the battery itself?
Click to expand...
Click to collapse
Is your phone rooted??
Sent from my GT-I9000 using XDA Premium App

Yes, using deodexed stock jvq rom and speedmod k15-t24. Using black background screen dimmed, and everything to make my battery life the best but it doesn't make it one day. So maybe there is a bug?

Micheltje13 said:
Yes, using deodexed stock jvq rom and speedmod k15-t24. Using black background screen dimmed, and everything to make my battery life the best but it doesn't make it one day. So maybe there is a bug?
Click to expand...
Click to collapse
Try going back to stock froyo, and flashing cfroot kernel so your phone is rooted but not deodexed or any other mods, then repeat the cycle and see if it gets better that way.
Sent from my GT-I9000 using XDA Premium App

Just flash froyo and then repeat the cycle so i don't need to stay a day or so on froyo?

Micheltje13 said:
Just flash froyo and then repeat the cycle so i don't need to stay a day or so on froyo?
Click to expand...
Click to collapse
You'll need to be on froyo for about a week or just over, just until you've repeated the cycle 2-3 times bud
Sent from my GT-I9000 using XDA Premium App

And there's no other solution?

Micheltje13 said:
And there's no other solution?
Click to expand...
Click to collapse
Yeah....buy a new battery
Sent from my GT-I9000 using XDA Premium App

Hello, I have similar problem since I installed JVQ. My google maps app drains battery about 25-30% same as my screen. I don't even start maps app
Any help?
Sent from my GT-I9000 using XDA App

Best kernal for SM9 Rom (Battery preferred) ????

Hey
Any suggestions on good kernals I can use for paranoid android rom? I'm using the newest stable cm9 kernal with it at the moment but my battery really is kicking low without even me being on my phone. Its really a joke.
Cheers.
Sent from my GT-N7000 using XDA

islandmixed said:
Hey
Any suggestions on good kernals I can use for paranoid android rom? I'm using the newest stable cm9 kernal with it at the moment but my battery really is kicking low without even me being on my phone. Its really a joke.
Cheers.
Sent from my GT-N7000 using XDA
Click to expand...
Click to collapse
did you wiped battery stats in cwm? If not charge the battery to full first.go to cwm.wipe it under advanced.reboot phone.let the battery drain out.then charge to full again continuously.
You can use battery calibration from playstore also for the same purpose.
Swyped To Help.

Okay I will try that...when u say let battery drain out do u mean I can still use it until its very low or until its un useable? Thanx Mr
Sent from my GT-N7000 using XDA

islandmixed said:
Okay I will try that...when u say let battery drain out do u mean I can still use it until its very low or until its un useable? Thanx Mr
Sent from my GT-N7000 using XDA
Click to expand...
Click to collapse
yes, use it until it turns off and then put on charging and full charge it, if possible then in switched off mode only, repeat this for 2-3 cycles, it's best way to calibrate battery.
Recommended to follow this whenever you flash new rom.

jeetu1981 said:
yes, use it until it turns off and then put on charging and full charge it, if possible then in switched off mode only, repeat this for 2-3 cycles, it's best way to calibrate battery.
Recommended to follow this whenever you flash new rom.
Click to expand...
Click to collapse
Oooh I see jeetu...I will he doing this first thing then. I love this rom now lol. Can't wait for that cm10 if it ever comes out.
Sent from my GT-N7000 using XDA

I've not yet wiped batt stats yet but I going to give it full charges and let it run out and really charge again and see if that helps. Reason why is I never normally full charge it...I just charge it half way at times so maybe my battle might not need calibration.
Sent from my GT-N7000 using XDA

[BUG] Battery Bug for Stock 4.2.2

THIS BUG CAN DO HARM TO YOUR BATTERY! BECAUSE YOU WILL NEVER KNOW WHEN THE BATTERY DRAINS!
As we all may encounter the battery bug after upgrading to .423 fw. When one restarts his phone, he has chances that the battery level of the phone rises (e.g., I turned off mine just now at 26% and turned it on showing 51%). This has been confirmed by many users in the forum, so I believe it is a firmware level bug of 4.2.2.
Is there any one willing to pay some time on fixing it? Coz this is a quite crucial bug for us, we dont know when will our phones automatically turn off! Thanks in advance
I believe its not a caliboration thing coz we also upgrade or wipe our devices before, and no such thing happened. I think its a firmware or kernel level bug. Does anyone who flashes a custom kernel also encounter the same problem?
It seems that Spanish FW is free from this bug.
http://forum.xda-developers.com/showthread.php?p=43261281
plz report your rom or base FW in the reply. Thanks.
[NEW EDIT]
It seems that I fix the bug. The battery jumps when the phone restarts, so I think there is something during boot which causes the issue. I delete the XZDualRecovery, and test the phone several times, and its fine!
Deleting XZDualRecovery might be a temporary fix, so you can choose what to do
[NEW EDIT 2]
someone reports that they dont encounter the bug and believes that its the calibration thing. i declare again that i DID the calibration and the issue was still there. for me, at least, deleting XZDualRecovery fixes the bug. plz report more details in the reply, like fw, root or not, recoveries. Thank you

I don't think there is a bug here.
Never happened to me,cause i did full wipe while flashing.
Maybe it happens only for users that didn't wiped everything.
Sent from my C6603 using xda premium

gm007 said:
I don't think there is a bug here.
Never happened to me,cause i did full wipe while flashing.
Maybe it happens only for users that didn't wiped everything.
Sent from my C6603 using xda premium
Click to expand...
Click to collapse
Actually I did

kkd28 said:
As we all may encounter the battery bug after upgrading to .423 fw. When one restarts his phone, he has chances that the battery level of the phone rises (e.g., I turned off mine just now at 26% and turned it on showing 51%). This has been confirmed by many users in the forum, so I believe it is a firmware level bug of 4.2.2.
Is there any one willing to pay some time on fixing it? Coz this is a quite crucial bug for us, we dont know when will our phones automatically turn off! Thanks in advance
Click to expand...
Click to collapse
and here I thought it only happen to me, I even tried installing battery calibration app lol
so yeah, +1 in this though I think this is happen in kernel level? which means us with lock bootloader can't use the fix... CMIIW though

primularosea said:
and here I thought it only happen to me, I even tried installing battery calibration app lol
so yeah, +1 in this though I think this is happen in kernel level? which means us with lock bootloader can't use the fix... CMIIW though
Click to expand...
Click to collapse
There is no kernel for 4.2.2. DoomKernel supports fw before 423. Correct me if Im wrong. Also in LB and know not much about custom kernels.

yes this issue exist. it happened to me when i updated to this new 4.2.2 also i have black dots in camera and the back cover of my xperia z is not correctly glued. i hate sony right now

amintox said:
yes this issue exist. it happened to me when i updated to this new 4.2.2 also i have black dots in camera and the back cover of my xperia z is not correctly glued. i hate sony right now
Click to expand...
Click to collapse
yes its kinda anoying. but i believe its software level problem except the unglued issue
Sent from my Nexus 7 using xda app-developers app

Oh, this actually happened to me once.

It also happened to me yesterday. I usually never turn off my phone, but yesterday I did it and found the battery went from 26% to 51% magically.
Sent from my C6603 using Tapatalk 4

I have the exact same problem, went from 26% to 52% after reboot... Is this bug bad for our battery? If so, maybe I'm flashing back to 4.1.2.
Sent from my C6603 using XDA Premium HD app

dilanopro said:
I have the exact same problem, went from 26% to 52% after reboot... Is this bug bad for our battery? If so, maybe I'm flashing back to 4.1.2.
Sent from my C6603 using XDA Premium HD app
Click to expand...
Click to collapse
Had the same!!! At the same valueas!!!!
Sent from my C6603 using xda app-developers app
---------- Post added at 03:33 PM ---------- Previous post was at 03:32 PM ----------
demon2112 said:
Had the same!!! At the same valueas!!!!
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
Maybe wr need to recalibrate battery,charging now
Sent from my C6603 using xda app-developers app

Pls let me know if that calibration worked for you...
Sent from my C6603 using XDA Premium HD app

Does anyone tried the hard shutdown?
Vol up+power
Sent from my C6603 using xda premium

hello all me too experienced the same problem but I successfully regained my battery life. Here is what I have done....
1)First I drained the battery fully until mobile gets switched off
2)Then I left the mobile to cool off for half an hour
3)After that I charged the battery upto 100%
4)Following this I switched on the Mobile and did the battery calibration by using 'Battery Calibration' app
5)Again I fully drained the battery and charged it again to 100%
Now the battery life seems good. I checked this by using WiFi whole night....battery lasted overs 12hrs

Battery Bug
Just updated my Xperia Z today with a full data wipe from 4.1 to 4.2.2 and I've experienced the same problem from 26% of battery to 52% after reboot.

viswavj said:
hello all me too experienced the same problem but I successfully regained my battery life. Here is what I have done....
1)First I drained the battery fully until mobile gets switched off
2)Then I left the mobile to cool off for half an hour
3)After that I charged the battery upto 100%
4)Following this I switched on the Mobile and did the battery calibration by using 'Battery Calibration' app
5)Again I fully drained the battery and charged it again to 100%
Now the battery life seems good. I checked this by using WiFi whole night....battery lasted overs 12hrs
Click to expand...
Click to collapse
Think I'm gonna try this to when I have the time. Phone just went off because the battery is dead, it was showing 14% and all of a sudden 0%.

dilanopro said:
Think I'm gonna try this to when I have the time. Phone just went off because the battery is dead, it was showing 14% and all of a sudden 0%.
Click to expand...
Click to collapse
This is exactly what I concern. I dont know when my phone is going to off, and it could be big trouble when there is no access to the charger.

Maybe we just need to recalibrate, drain battery to 0% and fully charge it to 100% while the phone is turned off.

plz give some feedback if it works
Sent from my C6603 using xda premium

viswavj said:
hello all me too experienced the same problem but I successfully regained my battery life. Here is what I have done....
1)First I drained the battery fully until mobile gets switched off
2)Then I left the mobile to cool off for half an hour
3)After that I charged the battery upto 100%
4)Following this I switched on the Mobile and did the battery calibration by using 'Battery Calibration' app
5)Again I fully drained the battery and charged it again to 100%
Now the battery life seems good. I checked this by using WiFi whole night....battery lasted overs 12hrs
Click to expand...
Click to collapse
I experiencing the same issue. 2% to 55% after reboot. wow... 4.2.2 doesn't bring anything for me to consider to keep it. so back to 4.1.2 (.4.3.4)
But one thing for sure (never discharge a lithium ion / polymer battery from full to 0 they don't like it) you could do that with nickel cadmium/ metal hydride batteries ant they really thank for that if you keep doing that you just kill your battery before its due time.