Description
A 2S 21700 battery holder is designed to house two 21700 lithium-ion cells in series, providing 7.4V nominal output (8.4V when fully charged). These holders are commonly used in high-power applications like RC vehicles, power tools, custom battery packs, and portable electronics.
Key Specifications
1. Mechanical & Compatibility
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Cell Format: Holds two 21700 Li-ion cells (21mm × 70mm each).
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Material: Plastic (ABS/PC) – Lightweight, insulated.
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Dimensions:
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Length: ~140–150mm (two cells + spacing).
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Width: ~25–30mm (depends on design).
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Height: ~20–25mm (varies by model)
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2. Common Applications
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DIY power banks & solar projects.
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RC cars, drones, and hobby electronics.
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Custom electric bike/tool batteries.
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High-power flashlights & portable devices.
