wmbattery - 2.56-1+b2 main

wmbattery displays the status of your laptop's battery in a small icon.
This includes if it is plugged in, if the battery is charging, how many
minutes of battery life remain, and battery status (high - green, low -
yellow, or critical - red).
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There's nothing in the program that makes it require WindowMaker, except
maybe the look. It can be docked in WindowMaker or AfterStep's dock.
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wmbattery supports multi-battery machines, and can estimate how long
it will take the battery to finish charging or discharging.