The Welding Process Is Based On The Principle Of High Current And High Temperature, Which Quickly Melts Part Of The Nickel Sheet And Cools It. The Cold Pressing Process Can Make The Contact Area Between The Joint And Pure Copper Large And Reduce The Internal Resistance. Using 5pcs Mos Tubes, The Maximum Current Can Reach 1700a; 5 Mos Tube Positions Are Reserved On The Back Of The Printed Circuit Board For Diy Players To Add Mos Tubes By Themselves. Thickened Pure Copper Soldering Pen Design, Using Aluminum Oxide Copper Spot Welding Pins To High Overcurrent Capacity And Durability. High-Power Output Design, 99 Levels Of Adjustable Output Power, More Precise Welding, Suitable For Thousands Of Continuous Welding Points On Nickel/Nickel Plates. 8-Square Welding Pen, 10awg Wire Is Composed Of Multiple Strands Of High-Temperature Wire, With High Torsion Resistance And More Sensitive Operation. It Has The Function Of Real-Time Gear Display On The Digital Tube, Ranging From 0 To 99, With Gear 1 Being The Lowest And Gear 99 Being The Highest. The Gears Gradually Increase. This Product Can Be Widely Used For Spot Welding Of Cylindrical Lithium Batteries And Nickel-Metal Hydride Batteries Such As 14650/17490/18650/21700/26650/32650. Supports 0.1-0.3mm Nickel Soldering Pads, And The Solder Joints Are Firm And Beautiful. Working Voltage: 6.5-16V Working Current: Less than 20mA Standby Power Consumption: Less than 0.5mA Recommended Operating Temperature: -10~ 60 Voltage: 12.0V Welding Current: 1700A Welding Thickness: 0.1-0.3mm Capacity: 20Ah-80Ah (New Battery Does Not Exceed 45Ah) Or: 4-5 Strings Of Super Farad Capacitors Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:As Shown Material:PCB+Plastic Package Contents: 1 x Welding Machine Motherboard Module 2 x Input Cable 2 x Welding Pen 2 x Heat Shrink Tube 1 x Lead Tab 1 Set x Screw Installation Accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.