Enhance your lithium battery spot welding projects with this high-quality Spot Welding Pen, expertly designed for efficiency, durability, and user comfort. Featuring a thick copper bar for superior conductivity and improved working efficiency, this welding pen supports long service life while delivering precise and reliable spot welds. Its integrated design not only offers a neat and professional appearance but also provides excellent heat dissipation to maintain stable operation during extended use. Key Features: · **Thick Copper Bar Construction:** Ensures enhanced electrical conductivity and efficient welding performance, suitable for prolonged working periods. · **Integrated and Compact Design:** Combines aesthetics with functionality, featuring effective heat radiation to prevent overheating and extend tool life. · **Dual Independent Spring Mechanism:** Each welding pen can expand and contract separately, allowing for smooth and responsive operation tailored to your welding needs. · **Built-in Limit Switch for One-Hand Operation:** Eliminates the need for a foot pedal, enabling more convenient and precise control during welding tasks. · **Ergonomic and Comfortable Handle:** Designed to reduce hand fatigue, this wear-resistant and durable pen provides stable, effort-saving use for extended periods. · **Compatibility:** Ideal for use with 12V external power sources and suitable for lithium battery spot welding machines, making it a versatile tool for battery assembly and repair projects. Specifications: · Name: Spot Welding Pen · Color Options: White, Blue, Green, Black · Welding Needle Size: 50 x 3 x 3 mm (1.97 x 0.12 x 0.12 in) · Item Dimensions: 155 x 45 x 25 mm (6.10 x 1.77 x 0.98 in) · Item Weight: 250 g (8.82 oz) · Package Dimensions: 200 x 100 x 50 mm (7.87 x 3.94 x 1.97 in) · Package Weight: 234 g Package Includes: · 1 x Spot Welding Pen This Spot Welding Pen is a must-have tool for professionals and hobbyists involved in lithium battery spot welding, delivering reliable performance, ease of use, and durability for all your welding needs.