Battery Calibration

Battery Calibration


Requirements: Android 2.1+ | Root permissions

Calibration needs to be done after flashing a new ROM, but you can calibrate any time you think your battery is miscalibrated. This program does it by removing the batterystats.bin system file. The OS generates a new clean batterystats file soon, thus any fake information from the previous ROM is removed.
It's suggested, but not necessary, to let the phone fully discharge after calibration, then charged to 100% without break.

The app shows your actual battery status, and only allows you to start the calibration (i.e. removes the file) when it's fully charged, unless you force earlier calibration.
The voltage meter can be useful too. Full charge is around 4200mV.
There is an option to beep when 100% is reached so you don't have to closley follow the changes.

Recent changes:
- Option to beep when 100% is reached.
- Voltage meter added.
- New icon.
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Free
82
4.1
User ratings
28086
Installs
1,000,000+
Concerns
0
File size
47 kb
Screenshots
Video of Battery Calibration Screenshot of Battery Calibration Screenshot of Battery Calibration
About Battery Calibration
Requirements: Android 2.1+ | Root permissions

Calibration needs to be done after flashing a new ROM, but you can calibrate any time you think your battery is miscalibrated. This program does it by removing the batterystats.bin system file. The OS generates a new clean batterystats file soon, thus any fake information from the previous ROM is removed.
It's suggested, but not necessary, to let the phone fully discharge after calibration, then charged to 100% without break.

The app shows your actual battery status, and only allows you to start the calibration (i.e. removes the file) when it's fully charged, unless you force earlier calibration.
The voltage meter can be useful too. Full charge is around 4200mV.
There is an option to beep when 100% is reached so you don't have to closley follow the changes.

Recent changes:
- Option to beep when 100% is reached.
- Voltage meter added.
- New icon.

User reviews of Battery Calibration
deleting batterystats.bin does NOT calibrate your battery, the full charge and discharge that they recommend after is what will calibrate your battery. see this for info from an actual android engineer: https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT dont waste your time with this! batterystats,bin is recreated when you fully charge it is simply the info re: battery usage in settings
Oct 16, 2012
Works with SGS+
Jan 14, 2012
**USE THIS IF YOU FLASHED TO CM7 / CYANOGENMOD 7.1.0 AND YOU'RE HAVING BATTERY DRAIN ISSUES** Works as advertised, after I upgraded from Eclair 2.1 to Gingerbread 2.3.7 on HTC Hero CDMA (Sprint).
Jan 3, 2012
After the battery calibration; it started restarts.. Especially, when I am charging. :( BTW Samsung Gio 2.3.5 Rooted original rom. :(
Nov 20, 2011
Simple. Needs root! Only required when you changed your OS.
Nov 19, 2011
Android Market Comments
A Google User
Sunday 7:46 PM
Super Good
A Google User
Saturday 3:43 AM
Nexus 4 rooted Ruined my battery. Showed I had 42% and phone shut off. Plugged in the charger and showed I was out of battery. Ruined my battery calibration. Phone wouldn't charge properly because calibration was off. Don't put on your phone. Unless you know how to flash your phone. Flash will repair it.
A Google User
4 days ago
not needed search battery calibration debunked
A Google User
6 days ago
Does exactly what it says.
A Google User
6 days ago
Great! If you don't have this app, then you don't know you need it, yet. This works! Rooted galaxy s3. And this app is gold!
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