21650/21700 Battery Cell Spacer / Holder / Bracket

21650 / 21700 Battery Cell Spacer / Holder / Bracket – Modular Plastic Mount for Battery Pack Assembly

The 21650 / 21700 Battery Cell Spacer / Holder / Bracket is a durable modular frame made from high-strength flame-retardant ABS plastic, designed to securely mount 21650 and 21700 cylindrical Li-ion cells.

These spacers ensure precise alignment, ventilation, and protection for cells during battery pack assembly, preventing vibration, short circuits, and overheating. The snap-fit design allows you to easily connect multiple brackets to create custom configurations (1S, 2S, 3S, etc.) for both series and parallel battery packs.

Ideal for EV battery systems, solar power banks, e-bikes, and DIY energy storage projects, these holders make professional-grade pack assembly simple, safe, and reliable.

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Key Features

• Compatible with 21650 / 21700 cylindrical battery cells.

• Made of high-quality, flame-retardant ABS plastic.

• Snap-fit modular design – easily expandable for any pack size.

• Ensures accurate spacing between cells for airflow and heat dissipation.

• Provides mechanical stability and insulation.

• Ideal for both series and parallel configurations.

• Protects cells from vibration, impact, and short circuits.

• Reusable, lightweight, and easy to assemble.

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Technical Specifications

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Applications

• Battery pack construction – Li-ion and LiFePO₄ systems.

• Electric vehicles (EVs) – e-bike, scooter, and portable battery packs.

• Solar energy storage – DIY Powerwalls and inverter systems.

• Power banks and UPS units.

• Robotics & automation projects.

• DIY electronics – safe modular pack assembly.