3x5 21700 Battery Holder Stand – ABS+PC Frame Bracket DIY

Keep your 21700 battery packs organized and secure with this durable 3x5 21700 Battery Holder Stand. Designed to hold 15 cells in a 3×5 grid configuration, this sturdy plastic frame bracket is an essential component for DIY battery pack builds, electronics projects, and custom power configurations.

Constructed from high-quality ABS+PC (Acrylonitrile Butadiene Styrene + Polycarbonate), this bracket delivers excellent structural rigidity and heat resistance — the kind of material reliability that serious makers and electronics hobbyists demand. With a precise 21.75mm hole distance spacing, cells slot in snugly and stay firmly in place during assembly.

Key Features

• Grid Configuration: 3×5 layout holds up to 15 × 21700 cylindrical cells
• Material: Premium ABS+PC plastic — impact-resistant and thermally stable
• Hole Distance: 21.75mm center-to-center spacing for a precise, secure fit
• Color: Classic black for a clean, professional finish
• DIY Friendly: Easy to assemble into custom battery pack configurations
• Versatile Use: Ideal for e-bike batteries, power tools, portable power stations, and custom electronics builds
• Sold as a multi-pack so you have everything you need for larger builds

Who Is This For?

Whether you're a seasoned electronics engineer, a DIY enthusiast building your own power bank, or a maker working on custom 21700 battery packs, this holder stand provides the structural support and precise alignment your project needs. It's equally at home in a professional workshop or a home maker's bench.

Why ABS+PC?

The combination of ABS and Polycarbonate creates a material that is stronger than standard ABS alone — offering better impact resistance, improved heat tolerance, and longer-lasting durability. This means your battery bracket will hold up reliably through repeated builds and demanding environments.

For general electrical safety guidance on battery-powered DIY projects, refer to the U.S. Consumer Product Safety Commission's Lithium-Ion Battery Safety resources.

Frequently Asked Questions

Q: What size batteries does this 21700 battery holder bracket fit?

A: This bracket is specifically designed to hold 21700 cylindrical lithium cells with a 21.75mm center-to-center hole spacing, ensuring a snug and secure fit for standard 21700-format batteries.

Q: How many cells does the 3x5 battery holder stand hold?

A: The 3×5 grid configuration holds a total of 15 individual 21700 battery cells per bracket, making it ideal for building medium-to-large capacity custom battery packs.

Q: What material is the battery holder frame bracket made from?

A: The bracket is made from a premium ABS+PC (Acrylonitrile Butadiene Styrene + Polycarbonate) blend, which provides excellent rigidity, impact resistance, and heat tolerance — ideal for demanding DIY electronics builds.

Q: What DIY projects is this battery bracket suitable for?

A: This holder is perfect for a wide range of projects including e-bike or e-scooter battery packs, portable power stations, custom power tool batteries, solar storage builds, and other electronics or maker projects requiring organized 21700 cell arrays.