Battery Calibration
It's important to understand that you can't actually calibrate the battery: it is, after all, just a cell that stores power and discharges. However, lithium-ion batteries do include a printed circuit board (PCB), which serves as a protection switch to stop them from exploding or deep discharging. 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 becomes corrupted and starts displaying data that isn’t real, which, for example, causes the phone to turn off before it reaches 0 per cent. Idle drain is also a result of this. 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.
Its Will Improved you Battery Life
• Non-Root method
- Discharge your phone fully until it turns itself off
- Turn it on again and let it turn itself off.
- Plug your phone into a charger and, without turning it on, let it charge until the on-screen or LED indicator says 100%.
- Unplug your charger.
- Turn your phone on. It's likely that the battery indicator won't say 100%, so plug the charger back in (leave your phone on) and continue charging until it says 100% on-screen as well.
- Unplug your phone and restart it. If it doesn't say 100% plug the charger back in until it says 100% on screen.
- 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.
- Now, let your battery discharge all the way down to 0% and let your phone turn off again.
- Fully charge the battery one more time without interruption and you should have reset the Android system's battery percentage.
• Root Method
- Discharge your phone fully until it turns itself off.
- Turn it on and let it turn off again.
- Plug your phone into a charger and, without turning it on, let it charge until the on-screen or LED indicator says 100%.
- Unplug your charger.
- Turn your phone on. It's likely that the battery indicator won't say 100%, so plug the charger back in (leave your phone on) and continue charging until it says 100% on the screen as well.
- Unplug your phone and restart it. If it doesn't say 100%, plug the charger back in until it says 100% on screen.
- 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.
- Now, install the Battery Calibration app and, before you launch it, make sure your battery is at 100% again, then restart.
- Immediately launch the app and recalibrate your battery.
- Once you've calibrated your battery, discharge it all the way down to 0% and let your phone turn off again.
- Fully charge the battery one more time without interruption while it's switched off, and the Android system's battery percentage will be reset.
• Calibration Apps :
• Lite Method
- Drain your battery to 0% until the device switch off itself
- Charge it upto 100% without any interruption (Don't power on or disturb the device inbetween). Simply leave the device on charging for 3hr+
- Clear cache partition
- Power on your device and use it until 85%
- Then again charge it upto 100%
• Notes
Remember that it is not recommended to perform this process all the time. Even when your battery is so dead your phone won't even turn on, your battery still has enough reserve charge to avoid system damage. But you don't want to poke the tiger with a stick. Perform this process once every three months at the most. If it is required more often than that you have bigger problems at hand.
Put plainly: fully discharging a battery is bad for it. Trying to overload a battery is also bad for it. The good news is that charging batteries automatically shut off when their safe limit is reached and there's always a little in reserve even if your phone won't start. But again: do this only when really necessary, because it does have a negative impact on battery life.