Spot Welding Fixture Bracket for 18650 & 21700 Batteries

Keep your lithium battery cells perfectly aligned and secure during spot welding and assembly with this Spot Welding Fixed Assembly Bracket. Designed to accommodate both 18650 and 21700 battery cells, this fixture delivers professional-grade precision for DIY battery pack builds, e-bike projects, power tool repairs, and more — all from the comfort of your own workshop.

Crafted from durable PLA material and measuring a compact 16.2 × 7.7 × 3 cm, this bracket is lightweight yet sturdy enough to hold cells firmly in place while you work. Available in 4 color options, it's a practical and tidy addition to any maker's toolkit.

Key Features

• Universal Compatibility: Supports both 18650 and 21700 cylindrical lithium battery cells
• Professional-Grade Precision: Holds cells securely for accurate, consistent spot welds every time
• Durable PLA Construction: Lightweight, impact-resistant material built for repeated daily use
• Compact & Portable: 16.2 × 7.7 × 3 cm size fits neatly on any workbench
• Versatile Use: Ideal for DIY battery packs, e-bikes, power tools, solar storage, and hobbyist electronics
• 4 Color Options: Choose a style that suits your workspace aesthetic

Product Specifications

• Material: PLA
• Dimensions: 16.2 × 7.7 × 3 cm
• Compatible Cells: 18650, 21700
• Available Colors: 4 options
• Brand: Qme

Perfect For

• DIY lithium battery pack assembly
• E-bike and electric vehicle battery projects
• Power tool battery rebuilds
• Solar energy storage builds
• Hobbyist electronics and maker spaces

For guidance on safe handling of lithium battery cells in DIY projects, visit the U.S. Consumer Product Safety Commission (CPSC) Lithium Battery Safety resource.

Frequently Asked Questions

Q: Which battery cell sizes does this spot welding fixture bracket support?

A: This spot welding fixed assembly bracket is designed to accommodate both 18650 and 21700 cylindrical lithium battery cells, making it highly versatile for a wide range of DIY battery pack projects.

Q: What material is the 18650 21700 spot welding fixture made from?

A: The fixture is constructed from PLA (polylactic acid), a durable and lightweight material. It measures 16.2 × 7.7 × 3 cm, making it compact enough to fit on any workbench without taking up too much space.

Q: Is this battery welding bracket suitable for beginners?

A: Absolutely. While it delivers professional-grade results, the bracket is straightforward to use and is equally suitable for hobbyists and experienced makers. It holds cells firmly in place so you can focus on achieving clean, precise spot welds every time.

Q: Can I use this fixture for assembling e-bike battery packs?

A: Yes! This bracket is ideal for assembling e-bike battery packs, power tool battery rebuilds, solar storage systems, and any project requiring secure positioning of 18650 or 21700 lithium cells during spot welding.