Here I did a review and teardown of a battery powered DH-30 spot welder. Compared to the DH-20 I reviewed a while back the DH-30 has a few noticeable improvements in terms of welding waveforms and welding duration.
Product link: https://www.amazon.com/Faiuot-Upgraded-Portable-Adjustable-Equipment/dp/B09PYPYNQF
00:00 Overview
04:15 Demonstration
06:38 Welding current measurements
08:10 Welding waveform measurements
10:57 Teardown
How Does a Spot Welder Work? Review, Teardown and Analysis of a BIFRC DH20 Battery Spot Welder: https://youtu.be/hObbKlGUnSM