A teardown and test of an inexpensive China spot-welder done by a verrrrrrry experienced and knowledgeable engineer. I was torn whether this would be best here or in one of the Esk8 Electronics sections.
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Would you permit this thread to turn into
super cheap spot welder general discussion and comparison thread?
As if we should even be buying any of them. Will watch this review.
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I’d spend 39-60$ on an eBay/shenzen special for science.
Those welds looked surprisingly good, unless he was using nickel plated steel. 
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It can turn into whatever we want it to. 
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Very interesting, I got an email the other day asking if I wanted to review one, and I haven’t responded quite yet. I did a little research but this video is definitely something I’m gonna digest
I’m guessing I’d want to get a couple thicknesses of nickel, and some test cells to weld to before trying to do something like that
It’s not like you can instantly trust one of these things to just be able to weld a full pack. Would need to see how well the welds hold up as the battery voltage drops too
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Wanna side by side them against a malelectrics and kweld? I’m out of nickel, but I’m down to weld.
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If I wasn’t so busy right now I would be down for something like that. This month is nuts for me
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I know the feeling.
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Did You saw this guy? He hawe some interesting videos with modified cheap welders, unfortenatly from some reason, video is not possible share. The name of it is MINI SPOT WELDER SHOWDOWN.
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I want one of these if it hold up to pack building rigors
Those are from a guy in a diy powerwall group so I’m sure it can manage an esk8 battery.
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Idk I’m in that DIY powerwall group and they also compliment soldered cells and other idiotic things… Not sure how much I’d trust that compared to our relatively high-stress application
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True I’ve been going insane looking at some of the builds and cringing. But my point being that it’s Atleast being designed with 400 plus cells in mind
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It’s amazing how little people can get away with when their cells are stacked in school lockers or sitting on shelves.
Keep in mind our batteries are constantly moving, vibrating and mildly flexing. We treat our batteries a lot worse than they do and we need something reliable enough to trust with transportation rigors.
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Yea a cell blowing up in a metal box is a lot different than a cell blowing up in a composite box at 35mph and no roll cage😂
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