Comment 8 for bug 371981

I dunno if this helps but i checked levels with acpi and gnome-power-manager. Battery time goes down rapidly until 7% and much slower after that. This could be related: http://www.mobileviews.com/blog/2009/04/26/ubuntu-904-netbook-remix-0-battery-power-situation/

8:37 Remove laptop from AC after full charge
8:47 Gnome-Power-Manager: 57.5% Acpi: 53%
8:50 gpm: 43.5 acpi: 39
8:54 gpm: 25.5 acpi: 22
8:55 killed gnome-power-manager
8:57 acpi: 7%
9:00 7%
9:10 7%
9:13 4%
9:15 1%
9:26 Battery depleted