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21700 · 专业Real builds and repairs made with AWithZ welders. Each project has a step-by-step digest with key frames, a welding recipe card and comment insights extracted from the original video.
Building a car jump-starter power bank from 8 tabless Ampace JP40 cells06:29
Building a car jump-starter power bank from 8 tabless Ampace JP40 cells
Xiao Wa39777913535
Teaching you the 8-cell car jump starter02:30
Teaching you the 8-cell car jump starter
Xiao Wa28328921972
Don’t copy this — even Wang Duoyu wouldn’t fund it02:10
Don’t copy this — even Wang Duoyu wouldn’t fund it
Duo Wuying39852134
Building a car jump starter from supercapacitors + lithium cells — the cells store energy, the supercapacitors deliver the big current; 21700 4000mAh cells in 2P4S, 2.7V 360F supercapacitors, two together should push past 100A instantaneous, CCA estimated 500+, should start a 2.4L car; final assembly and test next08:43
Building a car jump starter from supercapacitors + lithium cells — the cells store energy, the supercapacitors deliver the big current; 21700 4000mAh cells in 2P4S, 2.7V 360F supercapacitors, two together should push past 100A instantaneous, CCA estimated 500+, should start a 2.4L car; final assembly and test next
Doomsday Lab31475137
AWithZ P30C spot welder — now I can build my own 21700 power packs11:55
AWithZ P30C spot welder — now I can build my own 21700 power packs
MakerMania-RC-Aero1554484