Ubuntu
gnome-power-manager package

  1. Bug #60442
  2. Comment #40

Comment 40 for bug 60442

Jim Popovitch (jimpop) wrote : Re: Dual / Two Batteries, shutdown on empty expansion battery. (GPM does not recognises second battery on hotplug)

In Gnome you can run this command to change the "use_time_for_policy" state:

gconftool-2 --type=bool --set
        /apps/gnome-power-manager/use_time_for_policy false