When ever you install a custom ROM on your Android phone, you need to calibrate your battery, further calibration is also required if you find the battery is not giving proper results. Battery Calibration is simple free tool for Android phone to calibrate your battery.

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.

Download Battery Calibration