No.3 YCS Super Welder, Color Screen Adjustable Parameter Spot Welding Machine, Design For Mobile Phone Battery Spot Welding. Dual-Pulse Welding: It uses a two-stage welding process: a preheating pulse to remove oxidation from the metal surface, followed by a main pulse to ensure a strong, stable bond. Integrated Design: Unlike older models, it does not require external expansion boards. It features an integrated clamping design to hold batteries securely during the welding process. Adjustable Color Display: A real-time LCD screen displays critical parameters such as voltage, current, temperature, and pulse settings (preheat, interval, and main pulse). Emergency Power Bank: It includes a 5V USB output, allowing it to function as a portable power bank for charging mobile devices.