Your phone battery will drain over time. And when that happens, you find your phone turns off, even if the battery indicator shows you still have a lot of juice. If it comes to that, you will have to calibrate your Android phone’s battery.
In this post, you will learn how to properly calibrate the battery of your Samsung Galaxy S10, Google Pixel, or whatever Android phone you have.
Check the battery
Before calibrating the battery, you must first check the battery. Remove the back cover of the phone to expose the battery. Remove it from its socket and look for signs of wear, such as bumps or leaks.
If the battery no longer fits flush in the slot, it’s time to consider buying a new one.
There are various third party battery sellers on the market. However, it is advised to stay in touch with the phone manufacturer and buy the original. There are third party products that fall short of expectations.
Calibrating a broken battery will be a waste of time.
Note. While you’re working, pay attention to the charging port and cables. If it’s damaged, your phone may not be charging at full power.
Negative effects of battery discharge
When calibrating the phone battery, you must completely discharge it. While this is a necessary step, if performed frequently, it will shorten battery life.
Completely discharging the battery should not be a long term solution.
Batteries are not designed to discharge to zero. Your Android device has measures to prevent this from happening. But the calibration process will force Android to drain its battery completely.
However, some users state that calibration can be performed every three months if necessary.
How to calibrate an Android phone battery
Use your phone as usual until the battery runs out and the phone turns off. Then turn it on and let the phone turn off again. Do this until the phone stops turning on.
Now without turning it on, connect your phone to the charger and keep it on until the battery level indicator shows it is fully charged.
Remove the charger and turn on the phone. At this stage, the battery charge indicator may contradict itself and indicate that the phone is not fully charged. In this case, simply reconnect the charger. Leave the phone on this time.
When it reaches 100%, unplug the charger and restart your phone. Repeat the process until the phone shows it is fully charged after restarting.
Then discharge the battery again until it shuts down completely. Then charge it to full capacity.
If done correctly, your phone’s battery icon should calibrate and the fix should be displayed on your Android device.
Note. This process should also work when calibrating the tablet battery.
Calibrating the battery via root access also requires the battery to be drained. Only this time, you will be clearing the file called batterystats.bin in the process.
However, this method is not recommended by some users as it requires downloading a third party application. It can also be argued that deleting the specified file actually does nothing.
It would be much better to drain the battery and calibrate it without root access.