Battery Indicator Pro is a Great indicator of battery, it will alert you of your battery's charge. This application is very simple but has a lot of useful features. You can distribute the app for some time. Or you can disable some applications that are using this widget. Very easy to use, with excellent output.

Features:

• Widgets.
• Displays estimated time left to discharge or charge.
• Displays colored icon with information in notification area.
• Large, easy to read numbers.
• Quick access to many details including temperature, voltage, charging rate and discharge rate in percent per hour and system's information about what drains your battery.
• Themes GUI.
• Many options to customize