The video includes circuit diagram, test video, welding result analysis and charging simulation for a super-capacitor based 18650 battery spot welder. It could not work reliably and was finally abandoned.
Later, I built a simple and reliable MCU controlled high-current relay spot welding machine, which was introduced in my another video.
This is the open box video for the order for rebuilding my ebike battery. The order includes: Samsung 35E 18650 battery, nickel welding strip, 18650 Battery insulation paper, insulation sheet, high temperature resistance tape, 4x18650 battery box, 10x 18650 Battery box, heat shrink tube 145mm and heat shrink tube 130mm.
Fixed Chattering (Buzzing, Clicking) Relay Noise for Glow Worm Ultimate Boiler by replacing the 5 aluminium electrolytic capacitor on the PCB (part 202267).
It applies to Glow Worm Ultimate Boilers: Ultimate 30FF,Ultimate 40FF and Ultimate 50FF.