The 21700 (1×3) Cell Holder

is a compact, durable, and reliable battery holder designed to securely accommodate three 21700 lithium-ion cells in series. It provides mechanical support and stable electrical connections, making it ideal for DIY battery packs, prototyping, and small electronic projects.

Product Overview

This 1×3 configuration cell holder is designed specifically for 21700 cylindrical lithium-ion cells, allowing them to be connected in series to achieve higher voltages. Constructed from flame-retardant, high-quality plastic, the holder features spring-loaded metal contacts to ensure reliable electrical connection and easy insertion/removal of cells.

Key Features

Cell Compatibility: Designed for 21700 lithium-ion cells

Configuration: Holds 3 cells in series (1×3)

Durable Material: Flame-retardant plastic for safety and long-term use

Reliable Contacts: Spring-loaded metal contacts provide stable electrical connectivity

Compact Design: Space-efficient and lightweight

Easy Installation: Quick insertion and removal of cells without tools

Safe and Secure: Prevents short circuits and holds cells firmly

Applications

DIY battery packs and custom battery modules

Portable chargers and power banks

Electric vehicles (e-bikes, scooters) battery modules

Solar or energy storage systems

Testing and prototyping circuits with 21700 cells

Benefits

Securely holds 21700 cells in series

Ensures consistent and reliable electrical contact

Simplifies assembly of small battery packs

Compact, lightweight, and easy to integrate into projects