du battery

Maximize your MacBook's battery life.

View a Mac's sleeping habits, solve issues, improve battery life, stop sniffers

Displays info about your laptop battery.

Bluetooth battery monitor and notifier.

Menubar CPU, network, battery monitor.

The calibration tool for your Mac battery

shows you the battery status of Apple Bluetooth wireless devices

A Dashboard Widget for Mac OS X that displays the battery status.

Put your computer to sleep