Suitable for 14650, 17490, 18650, 21700, 26650, 32650 and other cylindrical lithium batteries, metal hydride batteries, etc., all of which can be firmly spot welded. Support 0.1-0.3mm sheet spot welding.Two-sided outgoing wires are convenient for spot welding, and the are marked, so it is not easy to make mistakes.99 levels of power adjustment Digital tube real-time gear display, gears 0-99, 1st gear is the lowest, 99 gears is the highest When using, increase the gears in turn.The spot welding machine control board uses 5 MOS tubes, and after 5 parallel connections, the theoretical maximum current can reach about 1700A.8 square spot welding pen, 10AWG wire, aluminum oxide copper spot welding needle, the over-current capacity and durability, and greatly the spot welding efficiency.Product name: K99 spot welding machineWorking voltage: 6.5V-16VWorking current: Less than 20maStandby power consumption: Less than 0.5maRecommended operating temperature: -10-60CVoltage: 12VWelding current: 1700A MAXWelding sheet thickness: 0.1-0.3mm (related to battery discharge energy)Capacity: 20AH-80AH (new battery does not the capacity of 45AH, over 45AH, please contact customer service to inquire about the current limiting ) or: 4-5 strings of super capacitors: Do not use switching power supplies, , chargers, water batteries, and charging for power supply color:PurpleMaterial:PCBsize:90 x 60mmPackage Contents:1 x Control Panel1 x Sheet2 x Spot Welding Pen2 x Connection Cable2 x Heat Shrinkable Sleeve3 x Caps4 x Screw4 x NutsOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.