How to Calibrate battery on your android device

Battery problems are the biggest concern for smartphone users. To overcome this problem, I am writing this short tutorial on calibrating batteries.

Battery issues generally develop after flashing ROM or updating firmware or software. There are some myths that deleting the batterystats.bin file will re-calibrate your device’s battery. But this file simply stores all the info about your battery section. It gets updated each time you charge your device above 80%.

There is a warning that the device battery should be 80% charged before we update the firmware or flash a ROM. But most of us ignore that warning and continue without charging it to 80%. So whenever you update or flash ROM, you need to calibrate your device battery to get good performance.

In this tutorial, I am writing two methods to calibrate the battery on your Android device. The first method is for non-rooted Android devices, and the other one is for rooted Android devices.

Read Also: How to root Sony Xperia C

Method 1: Calibrate the battery on non-rooted Android device

1. Discharge your Android device until it turns off itself.
2. Turn it on again and let it off itself.
3. Now plug in your device charger and let it charge until the screen shows a Battery signal.
4. Unplug the charger and turn on the device. The battery indicator will not say 100%. Now plug in your device charger and let it charge until it indicates 100%.
5. Once it shows 100%, unplug the charger and restart the device.
6. Check whether the indicator is showing 100%. If it is, repeat step 4 until it shows 100% after restarting the device.
7. Use your device until your battery shows 0% and turns itself off.
8. Now, fully charge your device without interruption.

Method 2: Calibrate the battery on rooted Android device

1. Discharge your Android device until it turns off itself.
2. Turn it on again and let it off itself.
3. Now plug in your device charger and let it charge until the screen shows a Battery signal.
4. Unplug the charger and turn on the device. The battery indicator will not say 100%. Now plug in your device charger and let it charge until it indicates 100%.
5. Once it shows 100%, unplug the charger and restart the device.
6. Check whether the indicator is showing 100%. If it is, repeat step 4 until it shows 100% after restarting the device.
7. Now, use your device until your battery shows 0% and turns itself off.
8. Now, fully charge your device without interruption.
9. Now Download and install battery calibration app [Download link]
10. Once your device shows 100% battery, restart and immediately launch Battery Calibration and tap the Battery Calibration button.
11. Done; now use your device until it turns itself off.