How I Make "Tiny" Bus Bars for Lithium Ion Cells by hand

While building a lithium-ion battery pack, I needed some small copper bus bars and did not want to buy them. So I made them myself using copper strip. Here I am sharing the details in case it helps any DIY'ers and solar power enthusiasts who might benefit from this information. Thanks for watching!
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Music credits: by TuneTank, Pixabay

[@JR-xw5dk]

I see that some people like a hump in their busbars to give some give as the battery cells expand and contract. The thickness of your busbars might stretch enough that it is not needed. Just a thought.
I think most good makers of lithium batteries prevent the batteries from expanding alot. But I have seen batteries built without compression.
Also punching thin metal is much safer than drilling because it can become a spinning blade and could cut the user.
Thanks for sharing.

[@solarpoweredge]

@JR-xw5dk Good thought, thinking about making them a few mm longer so they bend a little. Might add that in future builds. You are right about drilling metal. 100% must use a clamp or jig, it's super dangerous, I try not to do it

[@ferencszabo3504]

I would do it with drilling, but with punching it's so much cleaner!

[@solarpoweredge]

@ferencszabo3504 I think this is an option for some of my smaller projects, but the drill press can't go away :)

[@grindychum]

0.33mm thick how many amps can be put thru that?

[@solarpoweredge]

@grindychum I don't know yet, this battery is being made to run one of my cooking machines. Might double to .6 if it's a problem