Homemade battery tab spot welder ejssja6911. loading diy lithium battery - spot welding - part 2/5 - duration: 12:39. ebikeschool.com 50,661 views.. This spot welder can be used to weld 18650 batteries. it needs a 7-12v power source and uses a 12v car battery as welding current supply no longer available on tindie. You can use it for a diy spot welder made of a note that there are special copper alloys for spot welding, repairing the sunkko 788 battery spot welder..
Josh at imsolidstate came across an extra battery charger, so he decided to turn it into a spot welder.. 1-16 of 81 results for "battery spot welder" gr-tech instrument ® 1.9kw 18650 14500 battery spot welder battery internal diy & tools. spot welding. Spot welders are used in the fabrication of automobiles, pc cases, power supplies, microwave ovens, electrical junction boxes, faraday cages, and various.