Yes I know the battery is not ment to be replaced otherwise I would just go and buy a replacement . DOH !!! .
the battery takes about 60 seconds to remove so if I can find a replacement or something I can make into a replacement ill have a spare cam again .
It's got a broken housing had water in it and been pulled apart so im not going to send it to gopro and ask for warranty . Plus I think its over a year old anyway .
Ill pull one of my old spare hero 3 batteries apart and see if it can be adapted