Crap LiFePO4 cells bought from shonky seller on Ali

Author	Message
Revlac Guru Joined: 31/12/2016 Location: Australia Posts: 1285	Posted: 12:50pm 16 Oct 2024       Hi Murph, I did some years building Boats, Quite often we used stainless steel fittings at the customers request, I remember one fellow brought in some yellow stuff in a squeeze bottle, wanted that stuff under ever nut bolt screw and fitting, oh fun.   Quote   The big (200Ah) lithium cell I have do use stainless bolts for the connection but these go into a blind hole, no access to the battery inside. Negative terminal bolt screws into a copper electrode connection, the positive into an alumunium electrode connection, both are blind holes. Yes these are the same, 10mm blind holes in the top with SS bolts on the terminals, photo top of page. I could use an aluminium rod inside the cell and rivet it in tight to hold the plates to the terminals instead of those bolts they had inside, its probably better being the same material. It wouldn't surprise me if some (other manufactures) of the other plastic case batteries had similar fixings inside the cells.