Accubattery - Monitor's battery capacity through the use of science
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.
Ruler for Windows - It's a screen ruler for Windows.
BatteryBot Pro - Shows your battery charge level (percent) as an icon in your status bar, with temperature, health...