LV1
A repairman's 31-second revelation: after decades of soldering 18650s with an iron, only today did he learn there's a handheld spot welder, far better than a soldering iron; press down, fire, give it a tug and it's rock solid (screen shows gear 90)
Appliance repairer Xiao Yi: soldered 18650 cells with a soldering iron for decades, and only today learned there's a handheld spot welder, much better than a soldering iron; here's a test for everyone; press down, spot weld; done, give it a tug, very solid. Comments are all asking the price; someone says it runs out of charge after a few welds; requests for a full-length video.
A neat trick for welding Li-ion cellsProjectsAppliance Fix Yi