Made of aluminum alloy material, with anodic oxidation surface, wear resistant and beautiful. It can welding hundreds of welding points on commonly used nickel-plated sheets within 0.1mm-0.12mm.6 gears of output power adjustable, welding more accurate. Output gears indicator light(red), the number of indicator light corresponding the output gears.Equipped with electricity indicator light(blue), different numbers to shows different electric quantity, 1 light(5-25%,flash Less than 5%), 2 lights(25-50%), 3 lights(50-75%), 4 lights(75-100%).Automatic mode and manual mode adjustable, with output mode indicator light, automatic mode-left yellow light turn on, manual mode-right yellow light turn on.Type-C interface 2A input, 6700mAh spot welding machine can be fully charge within 3 hours. 400mm long spot welding pen for flexible operation. Mainly used in the welding of nickel sheet of cylindrical battery, NI-MH battery, nickel cadmium battery like 18650 and etc..Gold-plate terminal welding pen, with fine conductivity and low contact resistance, quickly detachment and easy carring.2mm thicken pure copper strip, supperlow internal resistance to increase overcurrent capability.Built-in high-rate polymer power cell, the maximum output current is up to 650A, and it can continuously weld thousands of points after being fully charged.Temperature control probe for temperature control protections, automatically shutoff when the temperature is higher than 60.Name: Spot Welding MachineBattery: 2 * 5V, 6500mAh lithium battery (included)Gears: 1-6 gearsInput interface: Type-CInput current: 5V, 2AWelding output voltage: 4.2V (max)Welding output current: 650A (max)Design welding current: 1000AWelding thickness: 0.1-0.12mmMaterial: Metalcolour: blackPackage Contents:1 x Spot Welding Machine2 x Spot Welding PenOnly the above package content, other products are not included.Note: Light shooting 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.