Features: The welding process is based 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 output design, 99 gears of output adjustable, more accurate welding, suitable for continuously welding thousands of points on nickel/nickel-plate sheet.With the digital tube real-time display function, 0-99 gears, 1- is the lowest, 99- is the highest, and the gears are gradually increasing.It supports 0.1-0.3mm nickel welding sheets with solid and beautiful welding spots. This product can be widely used on spots welding cylindrical lithium batteries and nickel metal hydride batteries such as 14650/17490/18650/21700/26650/32650 etc.Note:The switching supplies, tran-sformers, chargers, water batteries, and rechargeable batteries are not allowed to be used as supplies Specifications:Name: Spots Welding Machine SetWorking voltage: 6.5-16VWorking current: Less than 20maStandby consumption: Less than 0.5maRecommended working temperature: -10 to 60Voltage: 12.0VWelding current: 1700A MaxWelding thickness: 0.1-0.3mmCapacity: 20AH-80AH (new battery not more than 45AH, more than 45AH please consulting our customer service for current limiting ) or: 4-5 strings of super-Farah capacitorsMaterial: Metalcolour: PurplePackage Contents:1 set x Portable Spot WelderOnly 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.