18650 Single Cell Battery Holder – Modular Spacer Bracket

Overview

Build neat, stable, and organized lithium battery packs with this 18650 Single Cell Battery Holder. Designed to securely position one standard 18650 cylindrical battery, this lightweight plastic bracket helps maintain proper cell alignment and consistent spacing during battery pack assembly.

Its modular interlocking design allows multiple brackets to be connected together, making it easy to create custom battery configurations in series or parallel. The spacer structure also provides clearance between adjacent cells, allowing better airflow and helping reduce direct contact between batteries.

Ideal for DIY battery packs, power banks, robotics, portable electronics, and custom energy storage projects.

Key Features

• Single Cell Support – Designed to hold one standard 18650 cylindrical battery.
• Modular Interlocking Design – Connect multiple brackets to build custom battery pack layouts.
• Secure Cell Alignment – Keeps batteries properly positioned during assembly.
• Consistent Spacing – Maintains uniform gaps between adjacent battery cells.
• Improved Airflow – Provides space around cells to support ventilation and heat dissipation.
• Lightweight Construction – Made from durable ABS+PC plastic.
• Spot Welding Compatible – Suitable for battery pack assemblies using nickel strips and spot welding.
• Flexible Configurations – Supports custom series and parallel battery pack arrangements.

Technical Specifications

Parameter| Value Product Type| Battery Holder / Spacer Compatible Battery| 18650 Li-ion Cell Capacity| 1 Cell Configuration| Single Cell Material| ABS + PC Plastic Color| Black External Dimensions| 22 × 22 × 9 mm Inner Diameter| 18.4–18.5 mm Weight| Approximately 1 g Design| Modular Interlocking Installation| Top and Bottom of Battery Cell Battery Included| No

Applications

• Custom 18650 lithium battery packs.
• DIY power banks.
• Electric bicycle battery packs.
• Solar energy storage systems.
• Robotics and Arduino projects.
• Portable electronic devices.
• Backup power systems.
• Battery pack repair and prototyping.
• Spot-welded battery assemblies.

Installation Notes

• Multiple brackets can be interconnected to create the required battery pack layout.
• Typically installed at both ends of the battery cells for better mechanical stability.
• Compatible with battery pack assemblies using nickel strips and spot welding.

Important: This is a mechanical battery spacer only. It does not include electrical terminals, connecting wires, a BMS, or charging circuitry.

Package Includes

• 1 × 18650 Single Cell Battery Holder / Spacer