Feature: 1. ABS, COPPER MATERIAL: Made of premium ABS and copper material, the spot welder has a wear resistant shell for long life and strong conductivity for good welding effect. 2. EFFICIENT WORK: The adjustable spot welder can continuously weld thousands of points on the nickel sheet after being fully charged. The welding leg of the spot welder can be removed and replaced, and the installation and operation are convenient. 3. EASY OPERATION: Spot welding machine is controlled by foot switch. Just press the nickel sheet with two tin pens and press the foot switch. Wait for output spot welding for about 0.5 seconds, then release the foot switch. Suitable for accurate welding. 4. EASY CARRYING: This small spot welding machine is light and light, saving space at home, and you can easily and quickly carry the spot welding machine to different work places. 5. WIDE APPLICATION: Spot welding machine with large output power can be used to connect the nickel sheet of 18650 lithium battery, or spot weld iron plate and stainless steel plate. Also suitable for fast welding of 0.1 to 0.15mm nickel plated steel plate and 0.1mm pure nickel steel plate. Specification: Item Type: Spot Welder Product Soldering Pen: Copper Product Working Temperature: 10 ℃ to 65 ℃ Product Screen Size: 0.28in, digital tube Product Battery Capacity: 18650 x 1 4000mAh (shipped with built in battery) Product Output Power: 5000W Product Welding Thickness: 0.1 to 0.15mm Product Shell Material: ABS. Package List: 1 x Welder 2 x Welding Pen 1 x Power Adapter 1 x Foot Switch 1 x Manual 1 x Nickel Sheet 1 x Accessory Note: 1. Put the nickel sheet on the lithium battery, use the 18650 battery clamp to move and align it with the nickel sheet, step on the pedal, and finish the welding2. When welding, make sure to press the nickel plate and battery with two pins. 3. The welding pins cannot touch each other4. According to the welding effect of the actual product, the welding parameters can be adjusted pertinently until the satisfactory welding effect is achieved5. Inspection: check whether there is carbon deposit on the welding needle, if any, remove it with a file or abrasive paper