Efficient Touch Welding Designed for strong, reliable welds with solder joints. Ensures efficiency in every welding task, reducing time and effort without compromising quality. Double Pulse Welding for Improved Reliability Utilizes advanced double pulse welding technology. The first pulse cleans oxide layers and reduces spark spattering. The second pulse delivers precise welding energy for consistent results and enhanced reliability. 2in1 MultiFunction Battery Spot Welding Capable of welding materials up to 25mm thick. Powered by a capacity 5000mAh lithium battery supporting up to 1200A discharge. Combines pulse cleaning and welding in one unit, ideal for professional and hobby use. Suitable for mobile phone battery , cylindrical battery assembly, and power bank maintenance. Professional Brass Spot Welding Pen Features a replaceable tip design, reducing replacement costs and eliminating the need to change the entire pen. Crafted for precision welding with a durable brass build. Ensures consistent performance for delicate and accuracy tasks. Practical Applications and replacement of mobile phone batteries for extended device life. Assembly of cylindrical batteries for custom electronics projects. Power bank refurbishment for improved energy storage and output. Specifications Welding capacity: up to 25mm materials. Battery: 5000mAh capacity lithium. Discharge capability: 1200A max. Technology: Double pulse welding system. Welding pen: Professional brass construction with replaceable tips. This versatile welding device delivers the performance, reliability, and compatibility needed for professionalgrade battery work, ensuring efficient results across a wide range of applications.