Created attachment 4367 Patch: do not show a battery icon for HID devices When using my bluetooth mouse, upower creates a "power supply" and suggests this to be a battery (actually it is showing the battery status of the mouse). Subsequently, xfce4-power-manager displays a second battery icon in the tray. I consider this not very useful and wasting space. I created a quick hack (attached), which will skip all battery devices with names "hid-*" when creating icons. A second patch adds the percentage of batteries to xfce4-power-info (which still shows the second battery) so that the percentage left in the mouse can be investigated. Patches attached.
Created attachment 4368 Patch: add percentage to battery info in xfce4-power-info
fix version - patches are against latest git.
Nick, Guido (openSUSE XFCE maintainer) suggested that you might be interested in discussing the suggested fix, so I'm adding you to CC.
The trayicon has been replaced by a panel-plugin which groups all devices and shows them in a menu (in git master), so your bug should be fixed. With respect to percentage and time-left, we will also implement that in the plugin (optionally).