Digital Portable Spot Welder Kit with Adjustable Speed and Display for 18650 Lithium Battery Projects
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Take control of your battery welding projects with this digital portable spot welder. Designed for 18650 lithium battery packs, it features a vibrant color display, 30 adjustable speed settings, and powerful welding output up to 800A. Built with advanced protection features and a pure copper welding pen, it's ideal for DIY battery builders, electronics hobbyists, and repair professionals. Compact, powerful, and reliable—this welder delivers pro-level performance in the palm of your hand.
Key Features
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30-speed adjustable output with color display interface
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Pure copper thick welding pen ensures efficient current flow
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Built-in welding ammeter and over-temperature protection
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5000mAh battery with 2-hour fast charging capability
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Multiple safety features: overcurrent, short-circuit, low-power standby
Why Choose Our Digital Portable Spot Welder Kit with Adjustable Speed and Display
Unlike standard spot welders, this compact unit is packed with smart features like use record tracking, silent mode, auto power-off timer, and low current protection. It’s built for professionals but simple enough for hobbyists—reliable for hundreds of cycles with precise control.
Perfect For
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DIY 18650 battery pack building
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Small electronics repair shops
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Makers, tinkerers, and e-bike enthusiasts
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On-the-go portable welding without heavy gear
Product Specs
| Specification | Value |
|---|---|
| Battery Capacity | 5000mAh |
| Welding Current | 6–800A |
| Voltage | 4.2 ± 0.05V |
| Charging Time | 2 hours |
| Battery Life | 800–2000 uses |
| Standby Current | 20A (theoretical standby >2.5 years) |
| Protection Features | Overcurrent, short circuit, over-temp, etc. |
| Size | 112×80×30mm (4.41×3.15×1.18 in) |
| Material | ABS + PCB |
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