Features Versatile Power Options: Operates using a lithium battery or a 12V car battery, providing flexibility for various welding tasks wherever you need it Precision Control Display: Features a single chip microcomputer for accurate output pulses and an LCD screen that displays welding parameters for easy monitoring Easy Component Replacement: Utilizes U-shaped cold-pred terminals for the soldering pen and input wire, making disassembly and replacement quick and hassle- Dual Welding Modes: Offers automatic welding mode alongside a manual trigger interface, allowing you to choose the best option for your specific welding needs Enhanced Durability and Safety: Equipped with 2 oz copper power board and 10AWG multi-wire soft wire, ensuring high overcurrent capacity and quick switching to prevent tube explosion Features: 1、Welding power can be powered by lithium battery or 12V car battery. 2、The controller adopts single chip microcomputer control, accurate output pulse, LCD display screen, can display welding parameters. 3、The soldering pen and the input wire are connected by U？shaped cold？pred terminals, which is convenient for disassembly and replacement. 4、The controller adopts automatic welding mode, while retaining the manual trigger interface, you can choose according to your own usage. 5、The power board uses 2 ounces of copper, and the soldering pen wire and the input wire use 10AWG multi？wire soft wire to increase the overcurrent capacity. 6、Five 300A MOS tubes are driven by imported special chips, and the MOS tubes can be used as fast as 20nS, which can switch quickly to prevent tube explosion. 7、The controller is mainly for welding 0.1mm to 0.15mm nickel？plated steel strip, and the power input adds a 25V10000uF high？frequency low？resistance capacitor for energy compensation to increase stability. Specification: Item Type: Mini Spot Welder Product Description: 1: This controller is mainly used for welding small battery repair power banks, power tools, model airplanes, etc. 2: This controller requires users to have a certain electronic basis and safety awaren. 3: Although sufficient protection has been done for the drive of the MOS tube, it is inevitable that the explosion tube will appear during use. If there is a explosion tube, just replace one. 4: For those with high welding requirements, please change the welding power source. After actual testing, when the battery uses 3S, 40C, 5000mHA, it can weld 0.1mm nickel-plated steel strip and 0.15mm nickel-plated steel strip ly. The welding needle needs to be ground into a round head, the pring force is reduced, and it can also be welded; When the battery uses 12V, 50AH car level, it can weld 0.15mm nickel-plated steel strip ly. Note that it is a Package List 1 x Spot Welder 1 x Connector 2 x Power Input Line 2 x Soldering Pen