18650 Copper Spot Welder Tips – Welding Pen Heads 5/10 Pcs

Copper Spot Welding Tips for 18650 Lithium Battery Welders

Upgrade your handheld spot welder with these high-quality purple copper spot welding tips, precision-crafted for use with 18650 and other small lithium battery spot welder pens. Made from pure copper, these tips deliver excellent electrical conductivity and heat dissipation — keeping your welds consistent, clean, and reliable every time.

Whether you're building battery packs, repairing 18650 cells, or working on DIY electronics projects, these replacement welder heads are an essential consumable to keep on hand. Available in convenient packs of 5 or 10 pieces, so you always have a fresh tip ready.

Product Specifications

• Material: Copper (Purple Copper)
• Sizes Available: 3×30 mm / 2×25 mm
• Package Quantity: 5 Pcs or 10 Pcs
• Color: Purple Copper (as shown in images)
• Compatibility: Handheld 18650 lithium battery spot welder pens
• Country of Origin: Made in China

Key Features

• ✅ High-Purity Copper Construction — Superior conductivity for precise, efficient spot welding
• ✅ Excellent Heat Dissipation — Helps maintain consistent weld quality over extended use
• ✅ Compact & Compatible — Designed to fit standard handheld spot welder pen designs used with 18650 lithium cells
• ✅ Multi-Pack Value — Choose 5-piece or 10-piece sets to keep your workspace stocked
• ✅ Durable & Reliable — New, high-quality components for professional and hobbyist use alike

Important Notes

Please allow a 2–3% dimensional variance due to manual measurement. Dimensions listed are for reference only. Due to differences in monitor color calibration, the actual product color may vary slightly from images shown.

Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: What spot welder pens are these copper welding tips compatible with?

A: These copper spot welding tips are designed for standard handheld 18650 lithium battery spot welder pens. They come in two sizes — 3×30 mm and 2×25 mm — making them compatible with a wide range of popular handheld spot welder pen models used for small battery pack assembly and repair.

Q: Why is purple copper used for spot welding tips?

A: Purple copper (also known as red copper or pure copper) is prized for its exceptionally high electrical conductivity and efficient thermal transfer. These properties make it ideal for spot welding tips, as it allows precise energy delivery to the weld point while dissipating heat quickly, resulting in cleaner, more consistent welds on lithium battery tabs.

Q: How many welding tips come in a pack?

A: You can choose between a 5-piece pack or a 10-piece pack, depending on your needs. Having multiple tips on hand means you can replace worn tips quickly and keep your spot welding projects running smoothly without interruption.

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.