cbatticon
A lightweight and fast battery icon that sits in your system tray.
TLDR
Show the battery icon in the system tray
$ cbatticon
Show the battery icon and set the update interval to 20 seconds
$ cbatticon --update-interval [20]
List available icon types
$ cbatticon --list-icon-types
Show the battery icon with a specific icon type
$ cbatticon --icon-type [standard|notification|symbolic]
List available power supplies
$ cbatticon --list-power-supplies
Show the battery icon for a specific battery
$ cbatticon [BAT0]
Show the battery icon and which command to execute when the battery level reaches the set critical level
$ cbatticon --critical-level [5] --command-critical-level [poweroff]