Commercial battery spot welders do a good job but have a huge ... worked , because at 25E one of those MOSFETs failed to a short circuit with the usual magic smoke smell, and I was unable to ...

Learn how to build a compact spot welding machine using a battery in this easy DIY tutorial. Spot welding is essential in various industries, including automotive, aerospace, and construction.

Then I made a large version of an AA battery ... circuit. I think this has been enough for one day, so stay tuned for sparks coming up soon. UPDATE: Read the conclusion of this solar spot-welder ...