K99 DIY Spot Welder Pen Portable 12V Small Automatic Spot Welding Accessories Battery Spot Welder Pen Control Mainboard

Features:brand new and high quality The welding process isbased on the principle of high current and high temperature, rapidly melting part of the nickel sheet, and cooling. Adopt 5pcs MOS tubes, and the maximum-current is up to 1700A; there are 5 MOS tube locations reserved on the back of the printed circuit board for DIY players to increase their own MOS tubes. High power output design, 99 gears of output power adjustable, more accurate welding, suitable for continuously welding thousands of points on nickel/nickel-plate sheet. With the digital tube real-time gear display function, 0-99 gears, 1-gear is the lowest, 99-gear is the highest, and the gears are gradually increasing. It supports 0.1-0.3mm nickel welding sheets with solid and beautiful welding spots.Can be widely used on spots welding cylindrical lithium batteries and nickel metal hydride batteries such as 14650/17490/18650/21700/26650/32650 etc. Specifications:Material: Printed Circuit Board Working voltage: 6.5-16V Working current: <20ma Standby power consumption: <0.5ma Recommended working temperature: -10℃ to 60℃ Voltage: 12.0V Welding current: 1700A Welding thickness: 0.1-0.3mm Capacity: 20AH-80AH Size: Approx.90x60mm/3.54x2.36in Note:1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.Package includes:1x Control Board 2x Input Cable 2x Welding Pen 2x Heat Shrink Tubing 6x Screws 1x Nickel Sheet 1x Guideline