powermgmt-base - 1.34 main

This package contains utilities for power management; beside certain
mostly obsolete scripts, you'd want this package for "on_ac_power"
which lets you determine whether the system is powered from battery
or an abundant supply. It's recommended to use this tool over a
simple sysfs check, ConditionACPower or other ad-hoc methods which
notoriously fail to account for unobvious quirks, both old and new.