I find myself in need of welding 40 18650 cells into a pack to rebuild a dead pack. It seems the normal method of doing this is spot welding the batteries together with thin nickel sheet.

Making battery packs is a common pursuit in our community, involving spot-welding nickel strips to the terminals on individual cells. Many a pack has been made in this way, using reclaimed 18650 ...

Step-by-step instructions ensure a spot welder is built for efficient battery pack creation, making it easier to solder 18650 batteries with precision and effectiveness, resulting in a high ...

The guts of the pack are pretty much what you’d expect – recovered 18650 lithium-ion cells ... with laser-cut acrylic frames. Rather than spot weld the terminals, [Make It Extreme] used ...