This is a portable spot welder, mainly used for welding 18650 cylindrical batteries such as nickel.

Built-in capacity: The spot welder has a built-in high-multiple 7,500mAh polymer power battery, and the maximum output current can reach 650A.

Product detailed indicator light: This product has output power and battery indicator.

Adjustable modes and power level: manual output mode and automatic output two output modes, you can set 6 levels of output power at the same time.

If you are interested in projects such as DIY batteries, our products will be your best choice!