![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 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](https://i.ytimg.com/vi/07V15Z2JV0E/maxresdefault.jpg)
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
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12V Spot Welder DIY Portable Battery Spot Welding Storage Machine PCB Circuit F3 4894870105899 | eBay
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Ultrasonic DIY Battery Tab Spot Welder - China Ultrasonic Wire Welder and Ultrasonic Metal Welding Machine
![DIY Spot Welder Pen, W01 Blue Battery Spot Welding Pen Handheld Automatic Trigger Weld Pen - - Amazon.com DIY Spot Welder Pen, W01 Blue Battery Spot Welding Pen Handheld Automatic Trigger Weld Pen - - Amazon.com](https://images-na.ssl-images-amazon.com/images/I/71iSELlvGNL._AC_UL600_SR600,600_.jpg)
DIY Spot Welder Pen, W01 Blue Battery Spot Welding Pen Handheld Automatic Trigger Weld Pen - - Amazon.com
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voltage - Car battery spot welder. How to reduce battery power? - Electrical Engineering Stack Exchange
![Spot Welder 18650 Battery Spot Welding Tool Integrated DIY Spot Welding Pen with Concentric Ball Pin for Industrial Spot Welding - - Amazon.com Spot Welder 18650 Battery Spot Welding Tool Integrated DIY Spot Welding Pen with Concentric Ball Pin for Industrial Spot Welding - - Amazon.com](https://m.media-amazon.com/images/I/71ktw56-pJL._AC_UF894,1000_QL80_.jpg)
Spot Welder 18650 Battery Spot Welding Tool Integrated DIY Spot Welding Pen with Concentric Ball Pin for Industrial Spot Welding - - Amazon.com
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