Feature:1. INTELLIGENT LOGIC CONTROL CHIP: Spot welder control board adopts intelligent logic control chip to intelligently calculate battery power and eliminate tube blowing.2. FOUR WAY LED DISPLAY: Spot welder pen control board adopts four way LED display, integrating four functions of capacity, multiplier, gear and power warning.3. SUPPORT WELDING 0.10.3MM NICKEL CHIP: Spot welder pen PCB circuit board supports welding 0.10.3mm nickel sheet, six welding gears, and welding current 100A900A.4. WELDING BATTERY TYPE: Spot welder circuit board is suitable for spot welding 18650 26650 32650 and other cylindrical lithium batteries, NiMH batteries, cadmium nickel batteries, etc.5. COMMONLY USED POWER SUPPLY: Spot welder control board is commonly used to supply power for model batteries, car starter batteries, high rate lithium batteries and other lithium batteries.Specification:Item Type: Spot Welder Pen PCB Circuit BoardMaterial: PCB, Red CopperWorking Voltage: 6.5V-16VThickness Of Welded Nickel Sheet: 0.1-0.3mm/0.004-0.012in (Related To Battery Discharge Energy)Common Power Supply: Model Batteries, Car Starter Batteries, High Rate Lithium Batteries, Lead Acid Batteries, High Rate Lithium Iron Phosphate And Other Lithium BatteriesWelding Battery Type: Applicable To 18650 26650 32650 And Other Cylindrical Lithium Batteries, NiMH Batteries, Cadmium Nickel Batteries, Etc..Package List:1 xSpot Welder Pen PCB Circuit Board2 x Spot Welding Line2 x Power Cord2 x Rubber Sleeve1 x Nickel Sheet6 x Screw6 x Nut1 x Instruction Manual