Multicolor Handheld Spot Welding Pen for 18650 Battery – Automatic Trigger DIY Welding Tool
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Expected to be in stock within 5-7 business days. We'll ship immediately once available.
Multicolor Handheld Spot Welding Pen for 18650 Battery – Automatic Trigger DIY Welding Tool This handheld spot welding pen is designed to make 18650 battery welding quick, precise, and effortless. Built with a thick copper bar, it delivers strong conductivity and high working efficiency, ensuring consistent and reliable welds. Its integrated, compact design not only looks neat but also improves heat dissipation, helping the tool maintain stable performance during long sessions. The dual-spring structure allows each welding arm to move independently, making it easier to adjust and work comfortably. With a built-in limit switch, the pen enables true one-hand operation - no need for foot pedals or extra triggers. Whether you're assembling battery packs, repairing electronics, or building DIY power projects, this welding pen offers stable performance, long service life, and a smooth user experience. Features: Thick copper bar design improves efficiency and durability. Integrated body structure for better heat dissipation and neat appearance. Dual-spring mechanism allows each welding pen to move independently. Built-in limit switch enables one-hand automatic trigger operation. Comfortable to hold, stable during use, and suitable for extended work sessions. Ideal for welding 18650 batteries and other small electronic assemblies. Durable, wear-resistant construction designed for long service life.
- Thick copper bar for high conductivity and efficient welding
- Dual-spring mechanism for independent arm movement
- Built-in limit switch enables one-hand automatic operation
- Integrated design improves heat dissipation and durability
- Compatible with 18650, 21700, and 26650 battery cells
- No foot pedal required
- Ergonomic and lightweight design
- Stable performance during extended use
- Ideal for battery pack assembly and electronics prototyping
- Durable and wear-resistant construction
| Working Voltage | DC 4–12V |
|---|---|
| Required Current | ≥800A |
| Material | Thick copper bar + durable body |
| Mechanism | Dual independent springs |
| Trigger Type | Built-in automatic limit switch |
| Operation | One-hand use, no pedal required |
| Suitable For | 18650 battery spot welding |
| Design | Integrated structure with improved heat dissipation |
| Grip | Comfortable, stable, and wear-resistant |
Can this spot welding pen be used with 21700 or 26650 batteries?
Yes, the SES-P-3578 is compatible with 18650, 21700, and 26650 batteries when electrode spacing and clamp pressure are adjusted correctly.
Does it require an external power source or foot pedal?
No external pedal needed. It features an automatic trigger with a built-in limit switch for one-hand operation.
Is this tool suitable for industrial battery pack manufacturing?
Best for DIY, prototyping, and small-scale builds; not intended for high-volume industrial production.
What safety precautions should be taken while using this welder?
Wear safety goggles, ensure ventilation, and avoid contact with hot electrodes immediately after welding.
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About Multicolor Handheld Spot Welding Pen for 18650 Battery – Automatic Trigger DIY Welding Tool by Iotcart
Shop SES-P-3578 spot welding pen with automatic trigger. Compatible with 18650, 21700, 26650 batteries. Ideal for DIY battery packs.