Handheld Spot Welding Pen with Auto Trigger for 18650 Battery
Handheld Spot Welding Pen with Auto Trigger for 18650 Battery
Handheld Spot Welding Pen — Precision Spot Welder for 18650 Batteries
Take your battery pack assembly and DIY electronics projects to the next level with this compact, integrated handheld spot welding pen. Designed for use with 18650 lithium cells and nickel strip welding, this mini spot welder delivers fast, consistent welds at the press of a trigger — no foot pedal or separate control unit required. Whether you're building battery packs, repairing power tools, or tackling electronics projects, this pen-style spot welder puts precision and convenience right in the palm of your hand.
Key Features
- Automatic Trigger Welding: Built-in automatic trigger fires the weld instantly on contact — faster and more consistent than manual timing.
- Gold-Plated Connector: Ensures low-resistance, reliable electrical connection for stable performance over thousands of welds.
- Pure Copper Connecting Wire: High-conductivity copper wiring minimizes energy loss and supports high-current applications.
- Adjustable Pin Spacing: Soldering pin spacing is fully adjustable to accommodate different nickel strip widths and battery cell configurations.
- Removable & Replaceable Pins: Worn or damaged pins can be swapped out quickly, extending the life of your welder and keeping performance at its peak.
- Compact & Ergonomic Design: Pen-form factor fits comfortably in hand for extended use without fatigue.
Specifications
| Product Length | 66 cm |
| Soldering Pin Length | 2 × 25 mm |
| Internal Resistance | 35 mΩ |
| Maximum Withstand Current | 1,500 A |
| Country of Origin | Made in China |
What's in the Box
- 1 × Spot Welding Pen (complete set)
Important Notes
- Due to lighting conditions and screen settings, the product color may vary slightly from images shown.
- Please allow a 1 mm – 1 cm tolerance due to manual measurement.
- Always follow proper electrical safety guidelines when working with high-current welding equipment. For general electrical safety guidance, refer to OSHA's Electrical Safety Resource.
Frequently Asked Questions
Q: What type of batteries is this spot welding pen compatible with?
A: This handheld spot welding pen is specifically designed for use with 18650 lithium-ion battery cells. It is ideal for welding nickel strips onto 18650 cells when building or repairing DIY battery packs, power tool batteries, and similar applications.
Q: Do I need a separate spot welder controller to use this pen?
A: No — this is an integrated, all-in-one spot welding pen. The automatic trigger is built directly into the pen body, so no separate control box or foot pedal is needed. Simply connect it to your power source and the trigger fires the weld on contact.
Q: Can the welding pins be replaced when they wear out?
A: Yes. The soldering pins (2 × 25 mm) are both removable and replaceable, making it easy and cost-effective to maintain peak welding performance over the long term.
Q: What is the maximum current this spot welding pen can handle?
A: This spot welding pen is rated to withstand a maximum current of 1,500 A, making it capable of handling demanding battery pack welding tasks with consistent, reliable results.