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

Features:

• This spot welder utilizes rapid local heating and cooling of high current for efficient and precise spot welding, also known as butt welding or contact resistance welding.
• Automatically triggers welding, making it ideal for both DIY enthusiasts and professional welders.
• Compatible with various battery packs including 12V car starting power supplies, model aircraft 3S high-rate battery packs, high-rate lithium battery packs, Hitachi 409003 string battery packs, and durable 12V 20A lead-acid batteries.
• Equipped with a control panel that allows easy switching between 4 power levels with a simple 3-second long press. 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 performance.

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