Feature:1. FLEXIBLE AND DURABLE PEN: The terminal of the pen is gold plated and can pass through higher currents. 8mm spot welding special copper possess ultra low resistance, oxidation resistant. The length of the pen is 40cm, which is flexible and convenient to use2. LARGE BATTERY CAPACITY: Spot welding machine with 5000mAh large capacity, built in rechargeable 2 electric power lithium battery, environmental protection. Type C 2A input, fully charged in about 2 hours, can also be used to charge other devices3. PROTECTION MEASURES: Portable spot welding machine has perfect overcharge and overtemperature protection function, short circuit protection function. With a unique overheat protection device, automatically cut off the power when overheating occurs, and automatically shut down without any operation, so that you can use safer4. FLEXIBLE AND ADJUSTABLE: The preheating, interval and pulse parameters of the main interface can be adjusted according to your situation5. WITH INDICATOR LIGHT: When the pen is connected to the nickel sheet, the MOS tube will automatically output. Equipped with indicator lights that automatically turn off at low voltage to protect the batterySpecification:Item Type: Mini Spot WelderBattery Capacity: 1 x 3.7V polymer lithium battery 5000mAhProduct Screen: 1.8in color LCDWelding Pen Wire Thickness: 8AWGWelding Current: 6-1200AOvercurrent Protection: 1.12KAFull Charge Time: 2 HoursEndurance: 800-2000 TimesBattery Cycle Life: 1000 CyclesStandby Current: 20uATheoretical Standby: 2.5 Years or moreStorage Temperature And Humidity: 55 50% Maximum limitedCharging: 5.2V 2.1ADischarge: 5V 2.4A maximumSupport Welding: 0.25mm Nickel sheet, iron sheet, stainless steelWelding Time: Several millisecondsMaximum Welding Thickness: Approx. 10mm / 0.39in.Package List:1 x Spot Welder1 x Data Cable2 x Welding Pen20 x Nickel Sheet