I thought i'd do a quick demonstration while i'm using my spot welder at the moment to make up a 10s4p li-ion battery pack. **nickel strips** http://amzn. A fine-spot welder is one of the few equipment where building yourself is cheaper than buying. there are already published a lot of diy spot welders, this one has.... This spot welder can be used to weld 18650 batteries. it needs a 7-12v power source (12v recommended) and uses a 12v car battery as welding current supply..
The spot welder is pretty easy and straight forward to set up. i got the parts (prebuilt kit + diode set) , bought some car battery clamps and set the whole thing up. The poor man's battery tab welder. you with four weld spots. a battery assembly jig may more detail in the hobby spot welders battery welding. Completed cd spot welder: my completed cd spot welder is pictured to the left. a box for it might be nice, but the naked electronics has it's own charm too..
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