If you want to get be most out of your battery right after getting a new rom on your Android device, you should always calibrate it. However, this process, depending on the device that you are using can be cumbersome as it will force you to boot into recovery several times. Well, worry no more because XDA member marosige has developed an app that will allow you to do just this, without having to go through the hassle of rebooting a bunch of times. This app will require you to charge the battery to 100% charge, and then let it drop top 0 after flashing a brand new rom. It requires root access.
Please leave some feedback for the dev to see if this app is working as stated.
Calibration needs to be done after flashing a new ROM. This program does it by removing the batterystats.bin system file. The OS generates a new clean batterystats file soon, does 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.
You can find more information in the application thread.
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