The battery builders club

Yep. Just one sweet layer of easy welding.

This is going on one of @BenjaminF PCB kit.

https://www.duckbatterysystems.com/collections/battery-pcb-kits/products/copy-of-dri-12s4p-21700-compactpcb-2-0-battery-kit

I don’t have the series connections done yet.

But it is this guide.

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