Sparks

[BrianG]

Yeah, electrical tape can work too. I just said cloth because it will insulate the whole pack (not just the contancts) in case there is something wrong with the plastic sleeve or something.

Well, I suppose you could make some small holes where the contact of the discharge tray go, but that's kinda defeating the purpose of heatshrinking. Add balance connectors? lol j/k.

In lieu of heatshrinking the pack, what about my other idea of adding some insulating material to the chassis itself? I use a rubberized weather stripping I found at Menards. It's about 3/16" thick and doubles as padding for the cells. Just an idea...