18650 21700 Battery Spot Welding Fixed Assembly Bracket

Keep your lithium battery cells firmly in place during spot welding and assembly with this precision-designed 18650 & 21700 Battery Spot Welding Fixed Assembly Bracket. Whether you're building custom battery packs for DIY electronics, e-bikes, or power tools, this sturdy fixture holds cells at the correct angle and spacing — so every weld lands exactly where it should.

Crafted from durable PLA material, this compact bracket (16.2 × 7.7 × 3 cm) is lightweight yet rigid enough to withstand repeated use in workshop and home projects. Available in 4 color options to suit your bench setup.

Key Features

• Universal Compatibility: Fits both popular 18650 and 21700 cylindrical lithium battery cells.
• Precision Alignment: Holds cells securely in position for accurate, consistent spot welds every time.
• Durable PLA Construction: Lightweight, heat-resistant, and built for repeated workshop use.
• Compact & Portable: Measures just 16.2 × 7.7 × 3 cm — easy to store and carry.
• 4 Color Options: Choose the color that fits your workspace style.
• Versatile Use: Ideal for DIY battery pack builds, e-bike packs, flashlight batteries, power tool packs, and more.

Specifications

• Material: PLA
• Dimensions: 16.2 × 7.7 × 3 cm
• Compatible Battery Types: 18650, 21700 cylindrical lithium cells
• Color Options: 4 available
• Brand: Qme

Who Is This For?

This bracket is perfect for electronics hobbyists, battery pack assemblers, and DIY enthusiasts who want professional-level precision without the professional price tag. If you're building or repairing battery packs at home or in a small workshop, this fixture is an essential tool to add to your bench.

For general workshop safety guidelines when working with electrical components and power tools, visit OSHA's Electrical Safety Resource.

Frequently Asked Questions

Q: What battery sizes does this spot welding fixture support?

A: This welding fixed assembly bracket is designed to work with both 18650 and 21700 cylindrical lithium battery cells — two of the most common cell sizes used in DIY battery packs, e-bikes, flashlights, and power tools.

Q: What material is the 18650 21700 battery welding bracket made from?

A: The bracket is constructed from PLA (polylactic acid), a durable and lightweight material that holds its shape under repeated use. The fixture measures 16.2 × 7.7 × 3 cm, making it compact enough for any workbench.

Q: Can I use this fixture for DIY home battery pack projects?

A: Absolutely. This spot welding fixture is ideal for home DIY battery assembly projects. It securely holds cells in alignment so you can achieve precise, consistent spot welds — whether you're building a new pack or repairing an existing one.

Q: How many color options are available?

A: This bracket is available in 4 color options, so you can pick the one that best suits your workspace or personal preference.