BatteryCare - BatteryCare - Application and good practice guide for maintaining and optimizing the battery of the modern laptop
BatteryBar - Track battery life with BatteryBar and BatteryBar Pro for Windows. Statistical calculations on past usage give BatteryBar increased accuracy.
BatteryMon - BatteryMon is a battery monitoring software solution.
GSam Battery Monitor - Monitor your android devices battery usage.
Ruler for Windows - It's a screen ruler for Windows.
Battery Health - FIPLAB is an award winning application development studio in London that specialises in creating intrinsically viral, high quality iPhone, iPad, Mac and Windows 8 applications.