Review on 🔌 Portable Spot Welder Machine, Kerpu Mini Spot Welder with Energy Storage 5000mAh for DIY 18650 Battery, Spot Welding Equipment. Type-C Port 2A Input, Portable Battery Welder. by Joaquin Bennett

I'm very happy with this spot welder, of course it doesn't have much ability to weld anything thicker than the description says, but it's great for welding thin nickel strips, batteries, or I use it with 0.1mm thick 304 stainless steel with great success. The automatic mode is very convenient, you just press the probes and welding starts in a second. There are different levels you can try depending on the material to be welded, which is very nice. Battery life seems pretty impressive given its lightness.