Shows detailed battery stats:

In Preferences → Calibration → click → then perform the above discharge/charge cycle.

BatteryBar Pro is an advanced battery status meter for Windows. Unlike the default OS icon, BatteryBar uses a sophisticated algorithm to calculate your remaining battery life based on your historical usage patterns. Version 3.6.6 is often cited as one of the most stable and feature-complete iterations of the software, offering a "Full" suite of professional features that go far beyond simple percentage tracking. Key Features of the Pro Version