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 ce… ...

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 ...

With 18650 cells as cheap and plentiful as they are, you’d think building your own custom battery packs would be simple. Unfortunately, soldering the cells is tricky, and not everyone is will… ...

Rather than rebuild a battery pack, I'm going to discuss a couple of options for re-using the individual 18650 cells. I recently disassembled a dead pack and set about determining which cells were ...