Ah I see, why is it incorrectly positioned? I had the owner of a local game shop replace mine for me, since I wasn’t sure how to do it myself
I bought a 3rd party Chinese battery for my 3DS and it’s working okay for the moment. But if it starts degrading I’ll probably shell out for a switch pro controller and have him harvest the battery from that one, since that’s the only way to get a Nintendo OEM battery atm that fits the 3DS. I believe the XL uses a different battery though