Copper Spot Welding Needles 3×50mm Electrode Tips 18650 Battery

$23.54 $26.61

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Copper Spot Welding Needles – Precision Electrode Tips for 18650 Battery Packs

Upgrade your spot welding setup with these high-quality purple copper oxide electrode needles. Designed for double-head spot welders, these 3×50mm tips deliver consistent, reliable contact for welding 18650 lithium battery packs and other power battery assemblies. Whether you're a hobbyist builder or a professional battery technician, these electrodes provide excellent conductivity and durability for clean, repeatable welds.

Key Features

Material: Pure copper (purple copper oxide) for superior electrical conductivity
Size: 3mm diameter × 50mm length — compatible with standard double-head spot welders
Designed for 18650 batteries and similar power battery cell assemblies
Double-head design for efficient, balanced contact during welding
Available in 2-pack or 10-pack — choose the quantity that suits your project needs
New and high-quality construction for long service life
Made in Mainland China

Specifications

Material	Purple Copper (Copper Oxide)
Size	3 × 50 mm
Application	18650 Power Battery Spot Welding
Electrode Type	Double Head
Package Quantity	2 Pcs or 10 Pcs

Please allow a 2–3% dimensional tolerance due to manual measurement. Actual product color may vary slightly from images due to differences in monitor display settings.

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Frequently Asked Questions

Q: What spot welders are these copper electrode needles compatible with?

A: These 3×50mm copper spot welding needles are designed for standard double-head spot welders commonly used with 18650 lithium power battery cells. Always check your welder's electrode holder dimensions to confirm compatibility before ordering.

Q: Why is purple copper (copper oxide) used for spot welding electrode tips?

A: Purple copper, also known as electrolytic copper, offers excellent electrical conductivity and thermal transfer properties, making it ideal for spot welding electrode tips. It ensures efficient energy delivery to the weld point, resulting in clean and consistent welds on battery nickel strips and tabs.

Q: How many pieces are included in each pack?

A: These copper spot welding needles are available in either a 2-piece pack or a 10-piece pack, so you can select the quantity that best matches your project requirements or workshop stock needs.

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.

We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.