Nintendo 3DS Replacement Part BATTERY COVER Back Cover Only.
These were taken from a Japanese console (so have Japanese writing on them). But these are comparable with US consoles.
Item has some wear from use (it has a lot of small scratches, especially on the black side) - and is authentic. See picture for condition. I tried to show all the scratches but my camera was not able to pick them all up.
Sold as-is no returns.