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1set Spot Welding Machine DIY Kit, 99 Gear Power Adjustable Spot Welding Machine, Can Weld 18650 Battery 0.1-0.3mm Nickel Plate, Welding Control Board
(1.5K+ sold), by
Tool Best (24K+ sold)
$22.48
$48.71
-53%y***6works very well, used setting of 05 for a 5 ms pulse of 422A measured through a current shunt, connected to an LiFe battery I had. it automatically delivers the pulse shortly after the spot welder probe tips are placed on the nickel strip.
draws about 3mA when turned off, and about 13mA when on standby.
automatically turns off after not being used.
Nice quality silicone jacket leads, great for making making battery packs.
t***rGreat little spot welder. I've successfully welded nickel, steel and aluminum alloys, so I believe it's a handy machine to have. It works perfectly for spot welding batteries together with nickel strips. Instructions are vague, but this unit requires a 20+ amp hour battery. You'll either need to buy a specialty battery or use one for a riding lawnmower, which I found works well with this welder. Most automotive batteries have to much amperage, and smaller motorcycle batteries don't provide enough. When using the lawnmower battery, perfect spot welds are achieved with a gear setting around 50, so I figure the input amperage is just about right.
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