Two battery indicator symbols, how do I get rid of one?

After upgrading to 11.10 I have two battery indicator symbols. They look similar but show different tooltips. (It's German language - one only shows "Laptop-Akku ist vollständig aufgeladen" (Laptop-akku fully loaded), the other offers a menu that can bring up the energy options. The second one seems to be the right one. The first one I want to get rid of, but don't know which program this is.

Solution 1:

There is an open bug about this. It only shows when the unity panel is set to whitelist all applications in the system tray, and seems to be related to GNOME Power Manager having a fall back icon.

I don't know if it will indeed be fixed soon, but I would suggest either waiting a while to see if an update fixes it, or disabling the unity systray whitelist.

• How do I set the panel whitelist back to the default?