Spot Welding Machine Portable Diy Full Set 18650 Lithium Battery Nickel Belt Spot Welding Mini Small Household Fiber Spot Welder Tool Specifications:Item Type: Spot Welding MachineMaterial: aluminum alloySize: 10x8.4x2.8cm/3.9x3.3x1.1inColor: BlackOutput Voltage: 4.2V(max)Output Current: 639A(max)Design current: 1200A(max)Battery Capacity: 4300mAhInput interface: Micro USB/USB-C(Optional)Input: 5V 1A/2AWelding thickness: 0.1-0.12mmQuantity: 1 SetInstructions:Long press to turn on/off, double click for enter/quit power setting. First short press for auto triggering/regular trigering settings.Package IncludingPackage Includes:1 x Spot Welding Machine1 x Charging Cable2 x Spot Welding Pen1 x User Manual