Caffeine prevents your Mac from automatically going to sleep, dimming the screen or starting screen savers. Click it again to go back.
CoconutBattery shows you live information about the battery quality in your Mac, iPhone and iPad. You can also save the current health information, so you can see the changes of your battery over time.
Endurance increases your Mac’s battery life by removing unwanted applications and shutting down programs that suck up the maximum amount of energy. On a typical Mac notebook, this can help your Mac run for 20 per cent longer.
FruitJuice calculates the optimal minimum time you should be running on battery power each day based on the way you actually use your laptop.