Easy Battery Calibration is a free utility tool for Android devices developed by Miguel Fernandez Perez. This app helps users to calibrate their device's battery in the easiest way possible. Calibrating your device's battery is essential to get the most out of it, especially after installing a new ROM or when you notice that it got recalibrated, which could happen after a few months.

The app is very easy to use, and it guides you through the process step-by-step. Even advanced users can access the menu to force a calibration. The app works with or without root access, but for optimal results, it is recommended to use it with root access. If your device is stock, this app will still help the Android System to calibrate your battery.