Battery problems are among the biggest concerns for smartphone users, which is why we offer many useful tips and tricks for solving battery drain issues. If you notice that your battery performance and duration has decreased, it could be time to consider calibrating your battery. Keep in mind that there are plenty of other things that can cause a battery to malfunction. If your phone doesn't charge for exemple, there might be a problem with the port; if you've just updated the firmware on your phone, battery drain is a common complaint, so you might want to clear the cache partition on your phone etc.
I - How to calibrate the battery on your Android phone:
The Android operating system has a feature called Battery Stats, which keeps track of battery capacity, when it is full or empty. The problem is that it sometimes it become corrupted and starts displaying data that isn’t real, which, for example, causes the phone to turn off before reaching 0 percent. Calibrating your Android battery simply means getting the Android OS to correct this information so it is reflective of your actual battery levels once again.How to calibrate Android device battery without root access:
1. Discharge your phone fully until it turns itself off.2. Turn it on again and let it turn off.
3. Plug your phone into a charger and, without turning it on, let it charge until the on-screen or LED indicator says 100 %.
4. Unplug your charger.
5. Turn your phone on. The battery indicator will likely not say 100 %, so plug it in (leave your phone on for this) and continue charging until it says 100 % on-screen as well.
6. Unplug your phone and restart it. If it doesn't say 100 % plug the charger back in until it says 100 % on screen.
7. Repeat this cycle until it says 100 % (or as close as you think it's going to get) when you start it up without being plugged in.
8. Now, let your battery discharge all the way down to 0 % and let your phone turn off again.
9. Fully charge the battery one more time without interruption and you should have reset the Android system's battery percentage.
Please remember that it is not recommended to perform this process all the time. Perform this process once every three months at the most.
How to calibrate Android device battery with root access:
1. Discharge your phone fully until it turns itself off.2. Turn it on and let it discharge and turn off again.
3. Plug your phone into a charger and, without turning it on, let it charge until the on-screen or LED indicator says 100 %.
4. Unplug your charger.
5. Turn your phone on. The battery indicator will likely not say 100 percent, so plug it in (leave your phone on) and continue charging until it says 100 % on the screen as well.
6. Unplug your phone and restart it. If it doesn't say 100 %, plug the charger back in until it says 100 % on screen.
7. You want to repeat this cycle until it says 100 % (or as close as you think it's going to get) when you start it up without being plugged in .
8. Now, install the Battery Calibration app and, before launching it, make sure your battery is at 100 % again, then restart.
9. Immediately launch the app and recalibrate your battery.
10. Once you've calibrated your battery, discharge it all the way down to 0 % and let your phone turn off again.
11. Fully charge the battery one more time without interruption and you should have reset the Android system's battery percentage.
II - How To Fix Battery Drain Issue On A Rooted Android Device:
As you would already know, numerous factors contribute towards hogging and draining your limited battery resources, but on the positive side, there are certain effective methods that can help you with rectifying said issue, and get the maximum life out of your Android’s battery.1. Power your device off and plug it in for charging until the LED indicator turns green (100%).
2. Reboot into recovery: Device powered off, hold down the (device-specific) key combination that brings up the bootloader and select Recovery.
3. Wipe Battery Stats: advanced > Wipe Battery Stats > Yes – Wipe Battery Stats.
4. Return to the main system recovery menu and reboot (reboot system now).
5. Once rebooted, unplug your device and let the battery discharge completely.
Did the aforementioned guide help you overcome the problem? Do let us know about your personal experiences with your Android’s battery by posting in the comments section below :)
