Spot Welding Machine | Capacitor-Based 12V–14.6V Battery Spot Welder Board for 18650/21700 Lithium Battery Pack Assembly, DIY Battery Welding Controller

DIY Super Capacitor Spot Welder Kit (Capacitor Energy Storage Spot Welding Module) used for welding 18650 lithium battery nickel strips.

Specifications

• Input Voltage: 12V–16V DC (varies by model)
• Welding Material: Pure nickel strip
• Recommended Nickel Thickness: 0.1–0.2 mm
• Output: High-current pulse (hundreds to over a thousand amps for a few milliseconds)
• Applications: Battery pack building, battery repair, DIY electronics, power tool battery packs, e-bike batteries.

Package Includes

• Spot welder control board (partially visible in the anti-static bag)
• MOSFET power module (marked IN+, IN−, OUT+, OUT−)
• Copper welding pen/electrode
• Red and black high-current silicone wires
• Copper ring terminals (lugs)
• Heat-shrink tubing
• Mounting screws and nuts
• Protective carrying/storage bag