BatteryInfoView is a small utility for laptops and netbook computers that displays the current status and information about your battery. The displayed battery information includes the battery name, manufacture name, serial number, manufacture date, power state (charging/discharging), current battery capacity, full charged capacity, voltage, charge/discharge rate, and more…but the most important info it provides is the “health” of your battery how much below fully rechargeable is the battery. My 4-month old Dell battery stands at just under 90%, which I reckon means it will be 3/4 chargeable in about a year.

BatteryInfoView