Created attachment 6842 hide panel plugin label on unknown state Hide panel plugin label on unknown state. This happens when no battery is available.
Christian Hesse referenced this bugreport in commit 4d6f53105b2048fbe5bef3f9ea159c5304d9665a panel-plugin: Hide label in unknown state (Bug #12851) https://git.xfce.org/xfce/xfce4-power-manager/commit?id=4d6f53105b2048fbe5bef3f9ea159c5304d9665a
Makes sense, pushed.