Battery Charging Monitor - Amp is a free Android application designed for Android 5.0 and later versions. The app provides real-time monitoring of battery charging and discharging rates in milliampere (mA) and other useful information like temperature, available free RAM, and CPU temperature. With this app, you can see how much your battery is draining during gaming or when using any other apps.

The home page features a graphical view of charging or discharging rates up to 60 minutes, indicating charging in blue and discharging in red. You can also see the amount of battery charged or used (discharged), time passed since charging or discharging started, current battery status, level, health, voltage, temperature, technology, and capacity. Additionally, the app provides information on the available free RAM and the current CPU temperature.

The app also has a real-time notification bar for most of the home page features. You can reset the data by pressing the refresh button on the home screen, and to delete charging and discharging history, you need to go to the side menu, select settings, and use the option called ‘Delete History.’