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Slice battery (second battery) - HP Elitebook 2740p

This great battery doubles the battery time, but gnome-power-manager does not handle two batteries correctly. The slice battery drains power first, and then the internal battery. If both batteries are fully charged to begin with, then the slice battery will be empty when the internal battery is still fully charged. However gnome-power-manager (2.32) think the battery status is `critical' when the external slice battery is at low power, and proceeds to hibernate/sleep the computer! The computer can be restarted from the hibernate state, and the computer will continue to run with the internal battery `almost full' and the slice battery empty.

Two solutions...

  1. It is possible to ask the gnome-power-manager to `do nothing' when the battery power is at a critical level. Strangely, this option is a `secret' option in recent versions of gnome-power-manager. However this secret option can be enabled, temporarily, with gconf.
  2. Replace gnome-power-manager (or at least turn it off). At the moment, I am trying to use XFCE power manager instead, although at least some other people use KDE power manager, I don't know how! Gnome-power-manager is started automatically with GNOME, but the automatic start can be turned off in `Startup Application Preferences' under `Power Manager'.


next up previous Link to 'computer' page
Next: System software Up: Internal hardware Previous: Screen Rotate Key
David Fong 2011-01-25