Battery Ace is an app that allows you to track the level of charge in your mobile phone. You can get notified when the battery is fully charged or when it is close to being charged. This app can also be used as a widget, so you can easily check the battery level on your home screen.

This is a very useful app to help you save battery power. It is very easy to use and lightweight. It does not need any special permissions to function. This app is free to use.

Battery Ace allows you to keep a history of your battery usage. The graph shows the level, the time left, and the temperature. You can see the level of charge at any time.

The app can be used as a widget on your home screen. The widget has 3 modes: level, time left, and temperature. It can be resizable and has a high quality graphics. You can choose the style of the widget.