It's pretty much like the title says, I started a fix it thread earlier but it looks like it's dead, I’m stuck because the batteries to test with I have are bad, One is 6000 MAH and swelled up and I was able to freeze and get some more life out of it but now it just doesn't hold much of a charge the other is 5200 MAH and was DOA, but it could be it just needed to be revived since it probably wasn't charged for some time. I tried to revive it by watching this video
but it looks like some small wires broke off (you can see in the battery picture circled in red) and I can't figure out what the function is, it’s not working right, I can’t find an affordable used one, so I’m gonna try to do a battery mod I found on youtube here
and try a 1800 or 2000 mah that I have and see if I can proceed with the testing, the problem is I don't understand enough how to do the mod and what I need to do it, so far I know I need a JST connector but it looks like I need to have some other connector as well.