18650 & 21700 Battery Spot Welding Fixture | PLA Bracket

18650 & 21700 Battery Spot Welding Fixture – Precision Assembly Bracket

Keep your lithium battery cells perfectly aligned and secure during spot welding with this professional-grade PLA assembly fixture. Designed for both hobbyists and electronics builders, this compact bracket holds 18650 and 21700 cylindrical cells firmly in place — delivering consistent, accurate welds every time. Made in Mainland China.

Key Features

• Professional-Grade Precision: Built to exacting standards to ensure accurate cell positioning and reliable welds on every pass.
• Versatile Compatibility: Supports both 18650 and 21700 format lithium battery cells — perfect for DIY battery packs, power banks, and e-bike builds.
• High-Quality PLA Construction: Made from durable PLA plastic that is lightweight, rigid, and free from high-concern chemicals.
• Compact & Practical Size: Measures 16.2 × 7.7 × 3 cm — easy to use on a workbench without taking up excessive space.
• Safe for Workshop Use: Contains no high-concern chemicals, making it suitable for use in home workshops and professional settings alike.
• Great for DIY Projects: An ideal addition to any battery builder's toolkit — home DIY, electric vehicle battery packs, and more.

Specifications

Please Note

• Product color may vary slightly from images due to monitor brightness and lighting conditions. Please refer to the actual item received.
• Allow a slight manual measurement deviation of ±0.5–1 mm for stated dimensions.
• Batteries are NOT included.

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Frequently Asked Questions

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

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

Q: What material is the fixture made from, and is it durable enough for repeated use?

A: The fixture is made from high-quality PLA plastic. PLA is a rigid, dimensionally stable material that holds up well to repeated use in bench-top assembly and spot welding workflows, offering a reliable, lightweight solution for battery builders.

Q: Are batteries included with the fixture?

A: No, batteries are not included. The package contains 1 × spot welding fixture only. You will need to source your 18650 or 21700 cells separately.