How to Fix Battery Drain Problem after Flashing Custom ROMs’ in Android Gadgets

Reportedly, android users have been frequently complaining about the quickly battery draining issues they found after flashing custom ROMs (for instance Cyanogenmod 7) to their android devices. If you are one of them and want to solve this issue, then you are at the right place! Just follow the guidelines posted there in order to fix quick battery drainage issue after flashing custom ROMs’ in Android gadgets.

First let me explain you that why this issue happens. Actually the battery gauge in the status/notification bar is a expression of the battery stats.bin file in the data/system/ directory. Whenever a custom ROM is flashed on it, users should recalibrate the software or else you could experience a hastened battery exhaust.

The hastened exhaust is occurred by the “off-mark” battery stats file that tricks the battery into believing that it has attained the conclusion or climax of its capacity earlier than it is in fact fully exhausted or charged. Carry out the below treatments to fix this issue:

Step#1 (Charge your device completely): If following a preceding effort to regulate the battery, your device falls short to charge then it is likely that it has been adjusted improperly. If so is the case with you, switch your device off and plug it in for charging until the LED marker turns green. If your device does not equip an LED marker, you’ll have to verify the battery level by toggling it on.

Step#2 (Reboot into recovery mode): If your device is switched off, push down the Volume and Power buttons simultaneously so as to enter the bootloader and choose Recovery to enter into system recovery.

Step#3 (obliterate battery Stats): Choose advanced > Wipe Battery Stats > Yes – Wipe Battery Stats, as shown in the screenshots below. (In ClockworkMod Recovery v2.5.0.7).

As a final step, go back to the main system recovery menu and reboot (reboot system now). The issue should have been fixed by now!

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Tags: android devices, android gadgets, android how-to, android mobiles, android tutorials, cyanogenmod 7, fix battery drain in android, fix battery drain problem, fix battery drain problem in android, flashing custom rom, how-to android

Android

6 comments

Deepak

August 27th, 2012

I rooted my xperia mini pro sk17i ICS by flashing kernel neo v 4.0.3 and then rooting using DoomloRD method then flashing kernel back to xperia mini pro ICS 4.0.4 as mention at xda forum [http://forum.xda-developers.com/showthread.php?t=1701357] .,,,,but i get into serious problem with my device that….battery level behaves randomly drastically coming to very low levels and gets auto shutdown …it is happening randomly….sometimes auto shutdown happens in 15-20min….sometimes ,,after 30min…..pls help …my phone is still in warranty period…dont knw whether now i am getting my warranty due to above procedures or not….so pls help me to fix this ASAP…thanks in advance!!

I searched on internet…found some battery calibration app…stating that after flashing ROM battery needs to be calibrated…so installed it …but i observed strange thing again….it is said to tap on calibrate when charge shows 100% but due to the fact that battery levels changes strangely…battery status 100% is never reaching…and behavior is so weired.that in charging condition..that i see it 77% now…after 5min see it 82%…then after 10min see it 66%….then…57% after 5min….then 60% after 3min,,,,,and 1% after 10min….and these all happen in charging status…and if it wasn’t into charging…my device would have gone auto shutdown after 1% level……so how would i even try with battery calibration app:( ….. pls help me soon plss

pls help….my device is not able to be ON for more than a hour or even less and even auto shutdown in charging mode also due to above issues…!!!

Also I never see 100% battery charge status due to above issue…max i saw 96%…it drops suddently 10-50% randomly…!!…auto shutdown even if device is in charging
Reply
Nunterz

September 23rd, 2012

Does it actually work? I don’t want my device to crash of course.

Samsung Galaxy Ace : Rooted & Flashed : Maclaw’s Cyanogenmod 10 : Clockwork mod 5.x
Reply
ChickenMusket

February 22nd, 2013

Using Droid X2 with fresh successful install of CM10 & gapps. I did what you said and it bricks the phone.

I recommend anyone who wants to try this: do the battery wipe directly after installing cm10 & gapps, while still in the same cwm session. If you reboot into cwm recovery after booting into CM10, you might end up with brick (easily remedied with RSD Lite).

I don’t know if it’s worked, yet. Too soon to tell.
Reply
Alzol

April 24th, 2013

I am using Motorola Atrix 4G and flashed it to cm7.2 a few days ago and i am experiencing battery drain. Has anyone tested this method?? I don’t wont to brick my phone triyng to fix a battery issue. Thanks
Reply
Zack

May 8th, 2013

All bullshit, every technique, because after the release of CM10.1 there has NEVER been any fix for the BATTERY CHARGE PERCENTAGE problem in which the battery NEVER charges 100% and it always gets stuck at something like 78% or something, different users have different percentages.

And, the battery will never charge 100% even if its kept for charging for several hours, and it drains out in six hours completely even in STANDBY mode.

If we all are so much interested about something called FREE, this is what we get for being FREE!!! All of us are NOT programmers to write and compile our own programs especially the kernel things compatible with LINUX based systems, so we always need to VERY PATIENTLY wait for the developers or mods to help us finally.
Besides, using the ANDROID applications, each and every application has access to our PHONE BOOK, DOCUMENTS, STORAGE & EVERY SENSITIVE DOCUMENTS… where is our privacy and anonymity?
And we got our lovely dear handsets toasted because we got a little greedy of something called FREE!!! this has to END, switch to something called iPhone or BlackBerry, and remain with your peace of mind…
Reply
- C0PY_PASTE
  
  May 16th, 2013
  
  Dear Zack,
  
  i just want to reply about the final part of your comment
  
  there are programs to restrict the permissions for every programs on Android , Use “SRT Appguard” and remove all the unwanted permission from android apps and Use Android firewall to restrict those programs the internet access.
  
  For this Android users don’t have to switch to Iphone & Blackberry
  Reply