AxonZelo 3000A Supercapacitor Spot Welder Control Board – No Display

Build or upgrade a compact supercapacitor battery spot welder with the AxonZelo high-current control board. Designed for DIY battery-pack and workshop projects, this board supports peak welding current up to 3000A when used with a correctly specified power system and connections.

Key specifications

• Maximum peak welding current: up to 3000A
• Maximum charging input: 12V / 8A
• Compatible capacitor: 3V 1500F supercapacitor
• Application: battery spot welder control and power switching
• Display: not included

Product highlights

• Compact high-current PCB design
• Heavy-duty copper connection points
• Integrated charging and welding control circuitry
• Suitable for custom supercapacitor spot-welder projects

Package contents

1 × AxonZelo supercapacitor spot welder control board.

Not included: display, 3V 1500F supercapacitor, charger/power supply, welding pen, cables, enclosure or battery cells.

Important compatibility note

Peak current depends on capacitor condition, cable resistance, electrode system, connection quality and overall assembly. Use conductors, terminals and protection components rated for the intended current. Confirm polarity before connection and follow appropriate electrical and battery safety procedures.

Recommended use

For experienced builders assembling or repairing 18650, 21700 and other battery packs. Test the completed system on scrap nickel strip before welding a battery pack. Installation should be completed by a person familiar with high-current supercapacitor circuits.