5000W Mini Portable Spot Welder Kit for 18650 Battery Packs – DIY Micro Spot Welding Tool with 0.15mm Nickel Strip Compatible

If you love building your own battery packs, this Mini 5000W Micro Spot Welder is the tiny powerhouse your DIY bench has been waiting for. Designed specifically for 18650 lithium battery pack welding, this compact tool delivers serious performance in a pocket-sized body — perfect for makers, hobbyists, RC builders, e-bike modders, and electronics tinkerers.

Don’t let the size fool you. With a high 5000W output, this portable spot welder easily handles 0.1–0.2mm nickel strip welding, creating strong, clean, and professional-looking weld points without bulky industrial equipment. Whether you're repairing battery packs or building custom power banks, this tool gives you precision and control right in your hands.

The adjustable current settings make it beginner-friendly while still powerful enough for experienced DIYers. Just tweak the power level based on nickel strip thickness and you're ready to go. The replaceable welding pins extend the life of the device, and once fully charged, it can perform thousands of weld spots on a single charge — ideal for bigger projects.

Its ultra-compact, lightweight design makes it easy to carry to workshops, garages, or field projects. It’s a true portable battery spot welding machine built for convenience without sacrificing performance.

⚠️ Important Note: This tool is specially designed for battery nickel strip welding only. It is not suitable for copper, gold, silver, or other high-conductivity metals.

Why DIYers Love It

✔ High-power 5000W output in a mini size
✔ Perfect for 18650 lithium battery pack assembly
✔ Supports 0.1mm – 0.2mm nickel strip welding
✔ Adjustable current for different welding needs
✔ Replaceable welding needles
✔ Portable, lightweight, and easy to use
✔ Long-lasting battery for thousands of welds per charge
✔ Great for hobbyists, makers, and electronics repair

Automatic Welding Power Guide

🔹 0.1mm nickel strip → Set power level to 5
🔹 0.15mm nickel strip → Set power level to 6
🔹 Upgraded model supports welding up to 0.2mm

Package Includes

• 1 × 5000W Mini Spot Welding Machine
• 1 × Original Charger
• 1 × 2M Nickel Strip (0.1mm thickness)