DIY Battery Spot Welding Pen Handheld Welder Machine Accessory for Lithium Batteries Features： 1、Superior Conductivity: The spot welding pen features a gold-plated pure copper tip, ensuring excellent electrical conductivity and durability. This advanced material prevents rust, enhancing welding performance and extending the tool's lifespan. 2、Efficient Power Transfer: Equipped with a 16 mm2 pure copper wire, this spot welder pen guarantees stable current transmission. This robust feature provides strong support for efficient welding, making your tasks faster and more reliable. 3、Ergonomic Design: Designed with user comfort in mind, the spot welding pen fits comfortably in hand, reducing strain during extended use. The ergonomic grip makes it easy to handle, allowing for precise control in all welding applications. 4、Adjustable and Replaceable Tips: The detachable welding needle allows for easy replacements, ensuring convenience for ongoing projects. The included screwdriver facilitates quick adjustments of the needle spacing to accommodate various welding materials effectively. 5、Compact and Portable: With a total length of 66cm and a lightweight design of just 300g, this spot welding pen is highly portable. It is ideal for both workshop and outdoor use, allowing you to conduct welding tasks effortlessly anytime and anywhere. Specification： Item Name: Spot Welding Pen Pen End Material: Gold Plating Pure Copper? Copper Wire Material: Pure Copper Load Voltage: 3-6V Copper Wire Thickness: 16 mm2 Capillary Length: 0.2*2.5cm/0.08*0.98inch Maximum Withstand Current: 1500A Product Color: Black Total Length: 66cm/25.98in Package List： 1 * Spot Welding Pen 1 * DC Welding Wire Plug (5.5*2.5 mm) 1 * DC Welding Wire Plug (3.5*1.3 mm) 1 * DC Line 1 * Hex Wrench 1 * Screwdriver 1 * Manual