What are some alternatives?
When comparing BattStat and BatteryBar, you can also consider the following products
GSam Battery Monitor - Monitor your android devices battery usage.
Accubattery - Monitor's battery capacity through the use of science
BatteryMon - BatteryMon is a battery monitoring software solution.
BatteryCare - BatteryCare - Application and good practice guide for maintaining and optimizing the battery of the modern laptop
Last Real Shutdown - Last Windows Real Shutdown!
coconutBattery - With coconutBattery you are always aware of your current battery health. It shows you live information about the battery in your Mac and iOS devices (iPhone, iPad)