OffGridForGood
Catch, make or grow everything you can.
Not so sure...That is why I said one little spot at a time. If you hit it with higher than usual current, it will take only a few seconds to fuse a single spot. Then cool it. Repeat until all the way around. Not going to heat up the whole cell that way. If you use low current, it will take too long to fuse and allow heat to escape into the cell. Even aluminum has thermal resistance. This technique worked great on a thin aluminum generator end casting the other day. With lower current I was getting nowhere.
This from other thread where he drilled and tapped:
From my first mistake/repair attempt I've been able to discern that the lugs are not that thick and there's some sort of rubber mat underneath the lug, separating what ever's under it from the lug. (watched as many videos on the batteries as I could find trying to see if I could see any manufacturing videos - found a couple and yeah there's a protecting layer of rubbery something under the lugs - verified what came out on the drill bit - a thick gooey stuff).I took very careful measurements from the top of the lug to the bottom of the hole I'd drilled and threaded in the dead battery. It's 5mm.
It is only 5mm from the top of the lug to the bottom of it, and it sits on a rubber isolator - that you don't want to melt, because magic smoke will emerge..
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