The Portable Adjustable 5000w Battery Spot Welding Machine is a compact and powerful tool that is easy to carry and efficient in performance. Designed with adjustable current for user convenience, this spot welder creates strong and attractive solder joints and can spot weld thousands of joints on a full charge. Constructed from high-quality plastic and metal, it is odorless, wear-resistant, and durable. This spot welder is specifically designed for welding nickel strips for batteries, as well as iron and stainless steel sheets. It includes a plug, spot welding machine, a pair of soldering pens, a foot switch, nickel belt, and sandpaper. With an output voltage of 4.2V (MAX) and an output current of 639A (MAX), it boasts a battery capacity of 4300mAh and a power consumption of 5000W. The dimensions of the spot welder are 15cm x 9.7cm x 5.1cm, making it easy to handle. Please note that the actual color of the item may vary slightly from the images due to lighting and screen settings. Additionally, there may be minor differences in dimensions due to manual measurement. The package includes a plug, spot welding machine, a pair of soldering pens, a foot switch, nickel belt, and sandpaper. The spot welder, soldering pen, and foot switch are conveniently connected for ease of use. Key Features: Compact size and high power, Adjustable current for convenience, Produces strong and attractive solder joints, Suitable for welding nickel strips for batteries, Can also weld iron and stainless steel sheets, Made of high-quality plastic and metal, Compact design for easy handling, Includes necessary accessories for immediate use.