Looks like the bus bars need a little push. You should be able to catch a few threads with a nut.If you look at the picture there is not enough space for a nut on the top of the Bus bars on this Lifepo4 battery. How can I solve this?
(3p4s configuration)
View attachment 3286
If that is flattened pipe, notch the lower one prior to flattening & do the same on the end of the upper tie piece. I'd then reverse your order of assembly placing the tie piece below the cell bus bar.
I might also sweat the pieces together by bolting & soldering prior to installation. Use a stainless bolt, nut, & washers to clamp them for sweating.
is it being connected to another or just the end post ?You could drill a new hole in the lower bus bar between two of the the existing holes and move the top plate over to it and use a new stainless steel nut/bolt to make that connection.
I've had copper become brittle from over-working it. Take care!Or just put the bar on a anvil, put a chunk of steel bar over it where the connection will go, and whack it a few times with a hand maul to thin it out. Annealed copper is soft and it squishes pretty easily.
LOL, it doesnt have to be pretty - just work. BTW you did a nice job when you originally flattened your pipes, whenever I do it it looks like a 8 year old was using a rock...Thanks for all help. I smashed them with a hammer. ?