Here's how a Nikon D80 camera battery indicator can look like (depending on charge state)
You see, it's a usually looking "battery cylinder" symbol, but the "cylinder" perimeter is open - the lower line has a gap. To me it looks weird because I got used to such symbols with the "cylinder" having closed perimeter. This one looks "leaking".
Does that have any standard meaning? Why use this instead of closed perimeter symbol?