18650/21700 Spot Welding Fixture – Battery Assembly Bracket

18650 / 21700 Battery Spot Welding Fixture – Professional-Grade Assembly Bracket

Take your lithium battery pack builds to the next level with this sturdy, precision-designed spot welding fixture and assembly bracket. Compatible with both 18650 and 21700 cylindrical battery cells, this PLA fixture holds your cells firmly in place during spot welding, ensuring consistent, accurate welds every time — whether you're a seasoned hobbyist or just getting started with DIY battery packs.

Key Features

• Professional-Grade Precision: Engineered to hold 18650 and 21700 battery cells securely, eliminating slippage and misalignment during the welding process.
• Versatile DIY Application: Perfect for home workshops, RC battery pack assembly, e-bike battery builds, power tool battery rebuilds, and other lithium battery projects.
• Safe & Chemical-Free Construction: Made from high-quality PLA plastic with no high-concern chemicals — safe for regular workshop use.
• Durable & Long-Lasting: Robust PLA construction offers excellent rigidity and durability, standing up to repeated use in demanding assembly tasks.
• Compact & Easy to Handle: Dimensions of 16.2 × 7.7 × 3 cm keep your workspace tidy while providing a firm grip on your battery cells.

Specifications

Important Notes

• Actual color may vary slightly from product images due to monitor brightness and lighting conditions. Please refer to the physical product received.
• Allow for minor manual measurement deviations of ±1–2 mm.
• Batteries are not included.

Safety & Workshop Tips

Always follow proper spot welding safety protocols when working with lithium battery cells. For general electrical and workshop safety guidance, visit OSHA's Welding, Cutting & Brazing Safety page.

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Frequently Asked Questions

Q: Is this spot welding fixture compatible with both 18650 and 21700 battery cells?

A: Yes! This fixture is specifically designed to accommodate both 18650 and 21700 cylindrical lithium battery cells, making it a versatile tool for a wide range of battery pack assembly projects.

Q: What material is this battery welding fixture made from?

A: The fixture is constructed from high-quality PLA plastic, which provides excellent rigidity, durability, and chemical safety — ideal for repeated use in workshop and DIY environments.

Q: Are batteries included with the fixture?

A: No, batteries are not included. The package contains one (1) spot welding fixture bracket only. You will need to supply your own 18650 or 21700 battery cells.

Q: What types of projects is this welding fixture best suited for?

A: This fixture is ideal for DIY lithium battery pack builds, including e-bike battery packs, RC vehicle battery assemblies, power tool battery rebuilds, and general 18650/21700 battery spot welding projects at home or in a workshop setting.