Version 0.9 is available upstream. Please consider updating! It seems that version 0.9 is available upstream, while the latest version in the Gentoo tree is 0.8-r1. You think this warning is false? Read more about it here.
Battery monitor is a small utility that displays the status of your laptop battery (charge/discharge and status). I works best with linux 2.6 kernels and ACPI, but now has also support for 2.4 kernels and APM