DIY Portable Mini Spot Welder Machine 18650 Battery Welding Power Supply Pen


SKU: 10455 Category:


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  • Aluminum alloy shell material, safe to use, fireproof, and anti-drop; surface anodized technology
  • Nickel plate welding of cylindrical batteries like 18650 is primarily done with portable spot welders.
  • Built-in high-rate polymer power battery with a maximum output current of 639A and continuous welding capability for thousands of spots.
  • There are two output modes with output power and remaining power indication: timing trigger output and automatic trigger output. Four output powers can be set simultaneously.
  • Four two-color indicator lights: red indicates a welding power source, green a power source.
  • Charging indicator: After ten minutes of inactivity, the device will turn off automatically. Red indicates that it is charging, green indicates that it is fully charged.
  • Small and light in weight



  • Long press the power button, the green light indicates power, and the red light indicates output power.
  • Short press twice to enter the power setting, four power output, short press twice to save and exit.
  • At this time, welding is triggered at a fixed time, and the output is 1.5s once.
  • Short press once to switch to automatic trigger mode, and automatically output when two soldering pens are in good contact with the nickel sheet.
  • Long press to close.



Package Included:
1 x Spot Welder
1 x Charging Cable
2 x Spot Welding Pen
1 x Nickel Plated Steel Belt
1 x User Manual