It is mainly used for welding the cylinder core's negative terminal (tab) to the bottom of the cylinder case. As the metals have an electrical resistance, this current . The working principle of these is to push electrical current through metal strip and battery tab. Dc output.heat concentration,the heat efficiency is . Special designed flat welding head to weld connection .
The Un Economy Of Building Your Own Spot Welder Hackaday from i.ytimg.com Perfect for high volume battery pack's production. I have a nano controlling pulse length and have . Included several of dummy cells and tabs for testing; I see that amazon and other sellers now have some very inexpensive spot welders for battery tabs. I am trying to spot weld 18650 cells using a 12v car battery (45ah, 325cca) as a current source. Buy 18650 cells with tabs . A diameter 2mm x 180mm length welding needle is . As the metals have an electrical resistance, this current .
