Professional 18650 Lithium Battery Spot Welder Machine -WinAck Battery
I built a capacitive discharge battery tab spot welder (portable, USB-C powered, no microcontrollers, thyristor-based). No custom PCBs, mostly off-the-shelf components. : r/DIY
19.8KW High Precision Battery Spot Welder Capacitor Energy Storage Spot Welding | eBay
DIY Arduino Battery Spot Welder Kit V4 Full Bundle For Lipo Battery - Malectrics