Caffeine for Linux - Inspired by the Mac OS X version, Caffeine for Linux is a status bar application able to...
Accubattery - Monitor's battery capacity through the use of science
Caffeine for Windows - Prevent your computer from going to sleep
GSam Battery Monitor - Monitor your android devices battery usage.
Caffeinated - Caffeinated is a clone of a comparative Mac OSX apparatus called Caffeine and stops your PC going into standby.
BatteryCare - BatteryCare - Application and good practice guide for maintaining and optimizing the battery of the modern laptop