BatteryBot Pro is a Great app for displaying the battery charge of your device. The app was released in 2009, and soon won a lot of positive feedback.

Features:

• No ads
• the Exact battery level in taskbar
• Settings several icons
• Auto off
• the Notification is now optional
• a Well-tested and supported on all major versions of Android
• Open source
• Control the notification priority
• charging Indicator