18650 Lithium Battery Spot Pen Control Board Welding Machine 12V6742\n\nIntelligent Cnc Spot Welding Machine, 9 Precise Gear Adjustments, High-Speed Microcontroller, Intelligent Program, Real-Time Display Of Battery Voltage, And Spot Welding Intensity Can Be Seen\nIt Is Both A Spot Welding Machine And A Voltmeter. It Has A Built-In 12-Bit High- Adc And The Voltage Measurement Accuracy Can Reach 0.01. The Voltage Testable Range Is: 12-14.6V. It Automatically Displays The Voltage When Connected To The Power Supply.\n9-Level Power Adjustment, Digital Tube Real-Time Gear Display\nBilateral Outlet Is Convenient For Spot Welding. The Product Is Marked And It Is Not Easy To Make Wrong Connections.\nUltra-Thick Copper Tube, 12awg Wire, And Aluminum Oxide Copper Spot Welding Needles Excessive Current Capability And Durability, Greatly Improving Spot Welding Efficiency.\n\nProduct Name:12V Portable Spot Welding Machine Circuit Board\nGear:9 Gears\nWorking Current:90-150A (Discharge Below 90s