coconutBattery

coconutBattery isnt just a tool which shows you only the current charge of your battery - it also shows you the current maximum capacity of it in relation to the original capacity your battery had as it left the factory.

Free Mac OS X

Battery Health

With Battery Health, you can easily see all the important information about your MacBook's battery, such as current charge level, battery capacity, power usage, number of times it has been charged and much more.

Free Mac OS X

SlimBatteryMonitor

SlimBatteryMonitor displays a battery meter in the menu bar for laptop and UPS batteries. It uses the same information as Apple's system gauge, but allows you much...

Free Mac OS X

Battery Health Monitor

Battery Health Monitor is a free utility for MacBook, PowerBook and iBook owners that monitors virtual all battery health parameters and displays them in an easy-to-read format.

Free Mac OS X

Battery Box

Battery Box is a small app which lives in menubar. It shows useful informations and stats about your MacBook battery.

Commercial Mac OS X

Juice battery app

Juice is a tiny battery app for Macs to make the battery indicator more interesting. It's totally free and open-source, and also configurable through special plist...

Free Open Source Mac OS X

Coolant

Coolant lets you know when apps get power hungry before they drain your battery or overheat your Mac.

Commercial Mac OS X