Hackaday reader [David] was looking for a cheap and easy way to spot weld copper tabs together ... tipped electrodes were an interesting DIY job themselves, cleverly constructed using copper ...

This Spot Welder can be used to weld 18650 batteries. It uses a 12V car battery as welding current supply. Typically one 60Ah 600A battery delivers enough current to get good welds with 0.15mm - 0.2mm ...

Did you ever see a thin metal tab bonded to a battery terminal with little pock marks? That’s the work of a spot welder. Spot welding is one of those processes that doesn’t offer much in the ...

They link individual battery ... tabs in EV Li-ion pouch cells. It is possible to work quickly with laser welding, create custom weld patterns, and weld any joint shape while joining dissimilar metals ...