20Pcs 18650 Battery Spring Contact Sheets | DIY Battery Box

20-Pack 18650 Battery Spring Contact Sheets for DIY Electronics

Keep your battery-powered projects running smoothly with these nickel-plated spring contact sheets, designed specifically for 18650 batteries. Whether you're building a custom battery box, repairing an existing pack, or assembling a DIY electronics project, these positive and negative terminal contacts deliver reliable electrical connectivity every time. Made in Mainland China.

Key Features

• Universal 18650 Compatibility: Fits all standard 18650 batteries with strong, stable contact — no modifications needed.
• Nickel-Plated Iron Construction: 0.3mm nickel-plated iron material ensures excellent conductivity, corrosion resistance, and long-lasting durability.
• Positive & Negative Terminals Included: Each pack contains both bipolar (positive and negative) single contact sheets — everything you need for a complete battery bay.
• Generous 20-Piece Pack: Ideal for multiple builds, replacements, and repairs — stock up for all your DIY projects.
• Silver Finish: Clean, professional-looking silver finish that suits any battery holder or custom enclosure.
• Easy to Install: Designed for straightforward DIY installation — simply press or solder into your battery box frame.

Specifications

• Material: 0.3mm Nickel-Plated Iron
• Color: Silver
• Package Contents: 20 x Battery Spring Contact Sheets (positive & negative)
• Compatible With: All 18650 batteries
• Country of Origin: Made in Mainland China

Perfect For

• DIY battery holders and custom battery boxes
• Replacement terminal contacts for worn or damaged battery packs
• Electronics hobbyists, makers, and engineers
• Flashlights, power banks, RC vehicles, and more

Please Note: Due to manual measurement, a tolerance of 1–3mm may apply. Monitor color settings may slightly affect the appearance of images — please refer to the actual product received.

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Frequently Asked Questions

Q: Are these 18650 battery spring contacts compatible with all 18650 battery sizes?

A: Yes! These spring contact sheets are designed for universal compatibility with all standard 18650 batteries, making them suitable for a wide range of battery holders, DIY battery boxes, and electronic assemblies.

Q: Do the 20 pieces include both positive and negative contacts?

A: Absolutely. Each pack of 20 includes both positive and negative (bipolar) contact sheets, so you have everything you need to wire up multiple battery bays in your custom build or repair project.

Q: Can I solder these battery spring contacts into my battery holder?

A: Yes. The 0.3mm nickel-plated iron material is soldering-friendly, allowing you to securely attach the contacts to your battery box frame or PCB for a durable, low-resistance connection.