Highcool 5000W Portable Spot Welder for 18650 Battery Pack — 9-Speed (0-800A) Battery Welding Kit with Nickel Pen & LCD

Overview: The Highcool 5000W unit is built with an anodized, abrasion-resistant finish for durable, long-lasting use. The kit includes a nickel pen with high conductivity and low contact resistance. Control and output: A 1–9 knob lets you fine-tune output from 0-800A; higher knob settings produce greater output. After a full charge the machine can weld thousands of points continuously. The soldering tip is removable and replaceable for straightforward installation and maintenance. Operation: This battery-powered machine is designed for 18650 battery pack work and features foot pedal control for hands-free welding. To use, press the nickel strip between the two contact points, step the foot pedal, wait approximately 0.5 seconds for the weld output, then release the pedal. Display & battery guidance: An LCD screen shows internal status and voltage in real time. Battery condition is a major factor in welding performance—fully charge the unit before first use and avoid operation when the display reads below 7.3V. Applications and compatibility: Ideal for connecting nickel strips to battery tabs and steel components. Works well with 0.1-0.15mm nickel-plated steel and 0.1mm pure nickel for quick, reliable spot welding. Notes: This compact battery pack spot welder is suitable for beginners and experienced welders alike. If you encounter any problems during use, please contact us for support.