---
product_id: 427172990
title: "Mini Spot Welding Tool, Automatic Spot Welding Tool for 18650 Battery for Craftsman and Beginner"
brand: "minifinker"
price: "$81.48"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/427172990-mini-spot-welding-tool-automatic-spot-welding-tool-for-18650
store_origin: EC
region: Ecuador
---

# 15W power for rapid welding Fast heat dissipation for continuous use Thick brass bar for durable, strong welds Mini Spot Welding Tool, Automatic Spot Welding Tool for 18650 Battery for Craftsman and Beginner

**Brand:** minifinker
**Price:** $81.48
**Availability:** ✅ In Stock

## Summary

> ⚡ Weld like a pro, wherever you go!

## Quick Answers

- **What is this?** Mini Spot Welding Tool, Automatic Spot Welding Tool for 18650 Battery for Craftsman and Beginner by minifinker
- **How much does it cost?** $81.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/427172990-mini-spot-welding-tool-automatic-spot-welding-tool-for-18650)

## Best For

- minifinker enthusiasts

## Why This Product

- Trusted minifinker brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Portable & Compact Design:** Lightweight 258g tool fits perfectly in your toolkit for on-the-go battery pack assembly.
- • **Robust Brass Construction:** Thick, acid-cleaned brass bars deliver superior conductivity and long-lasting performance.
- • **Dedicated Customer Support:** Professional service team ready to resolve your queries swiftly, ensuring a seamless experience.
- • **Precision Ball Point Needles:** Japanese concentric needles ensure pinpoint, industrial-grade spot welding accuracy.
- • **Ergonomic Double Spring Handle:** Dual independent springs provide optimal force control for consistent, strong welds every time.

## Overview

The Mini Spot Welding Tool by minifinker is a compact, 15-watt corded electric spot welder designed for precision 18650 battery pack assembly. Featuring Japanese concentric ball point needles, thick acid-cleaned brass bars for enhanced conductivity, and a dual spring handle for controlled, strong welds, this portable tool boosts efficiency and reliability for both beginners and professionals.

## Description

Full description not available

## Features

- BALL POINT NEEDLES DESIGN: This spot welding pen comes standard with a pair of Japanese concentric ball point needles, which is effective. This spot welder pen is suitable for industrial spot welding, convenient, and strong.
- THICK BRASS BAR: Boost your work efficiency with this 18650 battery spot welding pen made of thick brass bar. Say goodbye to weak welding, large sparks, and low work efficiency with this independently expandable soldering pen.
- FAST HEAT DISSIPATION: The appearance is beautiful and clean, and the heat dissipation is fast. It is suitable for assembling battery packs. All the brass bars are cleaned and protected by strong acid to ensure the brightness of the brass bars.
- WITH DOUBLE SPRINGS: The handle of this spot welding pen has double springs to expand and contract, both of which can be independently expanded and contracted with moderate force control for strong welding.
- SERVICE GUARANTEE: We have a professional customer service team. Please contact customer service in time if you have any questions, we will solve them as soon as possible. Hope you have a good shopping experience. Please allow a slight error due to manual measurement.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | minifinker |
| Part number | minifinkerzxyiw0g4es3010 |
| Item Weight | 258 g |
| Product Dimensions | 1 x 1 x 1 cm; 258 g |
| Item model number | minifinkerzxyiw0g4es3010 |
| Style | Welding Tool |
| Power source type | Corded Electric |
| Wattage | 15 watts |
| Item Package Quantity | 1 |
| Head Style | Conical |
| Handle material | Spring Steel |
| Special Features | Portable |
| Specific uses | Industrial Use, Residential Use |
| Included components | Soldering Iron Stand |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** minifinker
- **Specific uses for product:** Industrial Use, Residential Use
- **Power source:** Corded Electric
- **Wattage:** 15 watts
- **Special feature:** Portable

## Images

![Mini Spot Welding Tool, Automatic Spot Welding Tool for 18650 Battery for Craftsman and Beginner - Image 1](https://m.media-amazon.com/images/I/7163+nHBCBL.jpg)

## Questions & Answers

**Q: What power supply is required?**
A: It looks to me like this is just the 'pen' part of the welder. A 12v car battery and relay need to go on the copper screw terminals. One of those spot welder circuit boards sold on Amazon would so it. The thin wire with the plug is the trigger operated by the little red switch near the electrodes. It actually looks like a pretty neat unit. It's just advertised badly. You'd push down on the piece to be welded and as the springs compress the little switch is triggered and the big relay you've added fires the weld pulse.

**Q: What PSU is suitable with this?**
A: I didn't use it in the end because it needs another part plus a 12 volt car battery.
sorry I can't be more helpful.

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**Shop now:** [https://www.desertcart.ec/products/427172990-mini-spot-welding-tool-automatic-spot-welding-tool-for-18650](https://www.desertcart.ec/products/427172990-mini-spot-welding-tool-automatic-spot-welding-tool-for-18650)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-25*