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Question anyone any guidance how thick the copper needs tobe between 2 modules?

Anyone any idea how to protect the copper strip/bar? Will heat shrink do?

Is there need to use some kind of paste between the terminals and the copper?

EV_Builder wrote: ↑Thu Mar 17, 2022 2:23 pm Question anyone any guidance how thick the copper needs tobe between 2 modules?

it depends on which terminals are on your battery cells. For example, I use new Catl with laser-welded screws. there are aluminum terminals and using copper tires is very stupid. So I go to Leroy Merlin and buy an inexpensive 20x2 mm aluminum strip . this is enough with a margin and does not require any protection.