12-Level Portable Spot Welder Kit – LED-Lit 18650 Battery Tool
12-Level Portable Spot Welder Kit – LED-Lit 18650 Battery Tool
Compact Handheld Spot Welder for DIY, Battery Assembly & Electronics Repair
The 12-Level Portable Spot Welder Kit is a precision-engineered, handheld welding tool designed for hobbyists, technicians, and DIY enthusiasts. Whether you're assembling 18650 lithium-ion battery packs, tackling mobile phone repairs, or working on small electronics projects, this lightweight welder delivers consistent, adjustable power in the palm of your hand. Made in Mainland China, CE and RoHS certified.
Key Features
- 12-Level Power Adjustment: Dual manual/automatic modes with 12 discrete power settings let you precisely match the weld strength to your material — ideal for nickel strips from 0.1mm up to 0.25mm thick.
- 0–9 Level Integrated LED Illumination: Built-in LED light with 9 brightness levels ensures you can work accurately even in dimly lit environments.
- Removable & Replaceable Welding Pins: Pure copper pins (approx. 3×50mm) use a threaded, embedded fixation system for easy alignment and quick swaps.
- Type-C Fast Charging: Charges via standard Type-C (DC 5V/2A) for universal compatibility with modern chargers and power banks.
- 2200mAh Built-in Lithium Polymer Battery: Cordless, rechargeable design for true portability — no tangled power cords on your workbench.
- Comprehensive Safety Protections: Surge protection, voltage regulation, short-circuit prevention, low/high-temperature safeguards, overcharge protection, and over-discharge prevention — all built in for worry-free operation.
- Ergonomic One-Hand Design: Slim ABS housing (17.4×4.42×2.2cm, 227g) fits comfortably in one hand for precise, fatigue-free use.
Full Specifications
| Adjustable Settings | 12-level |
| LED Illumination | 0–9 level adjustable |
| Battery Capacity | 2200mAh (Lithium Polymer) |
| Output Voltage | 4.2V |
| Output Current | 800A |
| Charging Interface | Type-C (DC 5V/2A) |
| Welding Thickness Range | 0.1mm – 0.25mm |
| Copper Pin Dimensions | Approx. 3×50mm (Pure Copper) |
| Housing Material | ABS |
| Dimensions | 17.4 × 4.42 × 2.2cm |
| Weight | 227g |
| Certification | CE, RoHS |
| Country of Origin | Made in Mainland China |
What's in the Box?
- Spot Welder × 1
- Type-C Charging Cable × 1
- Sandpaper × 1
- 2m Nickel Coil × 1
- Welding Pins × 2
- Screwdriver × 1
Troubleshooting Quick Guide
- Device won't power on: Check that the battery is charged and the charging cable and adapter are functioning correctly.
- Powers on but won't weld: Inspect the welding pins for debris that may cause a short circuit, and confirm the welding pin mode is activated.
- LED light not working: Verify the illumination level is not set to 0 (off position).
- Unexpected shutdown during use: This is the thermal overload protection activating after sustained high-power operation. Allow the unit to cool before resuming.
Complete Your Toolkit
Looking for more precision tools and storage solutions? Check out our Leather Hole Punch Tool | DIY Stitching Punch 4/5/6mm and keep your accessories organized with our Airtight Transparent PET Storage Bottle for Beads & Crafts.
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Frequently Asked Questions
Q: What materials can this portable spot welder handle?
A: This portable spot welder is designed to weld nickel strip and similar conductive materials with a thickness range of 0.1mm to 0.25mm. It is ideal for 18650 lithium-ion battery pack assembly, mobile phone repair work, and small-scale DIY electronics projects.
Q: Does the spot welder need to be plugged in while in use?
A: No — the welder operates on its built-in 2200mAh rechargeable lithium polymer battery, making it fully cordless during use. It recharges conveniently via the included Type-C cable (DC 5V/2A).
Q: What does the 12-level adjustment control?
A: The 12-level setting adjusts the output power of each weld pulse, allowing you to fine-tune weld strength based on your material thickness and application. Lower settings suit thinner nickel strips, while higher settings provide stronger bonds for thicker materials up to 0.25mm.
Q: Is this spot welder safe to use for beginners?
A: Yes. The unit includes multiple built-in safety features — surge protection, voltage regulation, short-circuit prevention, low- and high-temperature safeguards, overcharge protection, and over-discharge prevention — making it a safe choice for hobbyists and first-time users following standard safety practices.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.