High-Efficiency Automatic Spot Welder: 4 Power Levels for DIY & Professional Battery Pack Welding

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Product Features Utilizes rapid local heating and cooling of high current for efficient and precise spot welding, also known as butt welding or contact resistance welding. Automati cally triggers welding, making it suitable for both DIY enthusiasts and professional welders. Compatible with various battery packs such as 12V car starting power supply, model aircraft 3S high-rate battery pack, three-string high-rate lithium battery pack, Hitachi 409003 string battery pack, and sturdy 12V 20A lead-acid batteries. Features a control panel for easy switching among 4 power levels with a long press for 3 seconds. A green light pulse output indicator and a buzzing sound signal each spot welding output. Designed to be portable, stable, reliable, and durable, ensuring a long lifespan and excellent welding outcomes. Specifications System Voltage: 12-14.6V Working Current: 90-150A Recommended Battery: 20-45Ah lead-acid battery with good performance and low internal resistance 3.5-5.5Ah 45C 3S Lithium battery pack for model aircraft 30-35Ah Rongli type 18650 battery pack Note: Requires a self-provided 12V battery for power supply Package Includes 1 x Spot Welder PCB Circuit Board 1 x User Manual 1 x Control Panel Show more