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Detailed experiment on 3 DIY spot welders for 18650 batteries (inc. mini DIY spot wel - Printable Version

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Detailed experiment on 3 DIY spot welders for 18650 batteries (inc. mini DIY spot wel - RustyOx - 06-06-2021

The video introduces experiment of using three kinds of spot welding machines. One is purchased online, and the other two are made by myself. The three solutions are: MCU controlled mini MOSFET spot welder(the Mini DIY spot welder), the super capacitor spot welder and the MCU controlled high-current relay spot welder

Based on my test and experiment, I found that the home-made MCU controlled high-current relay solution is the simplest and most reliable.

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Youtube link: https://youtu.be/SU67KDIivOw