• 5S 21V 15A BMS protection board for lithium-ion 18650/21700 battery packs

    5S 21V 10A / 15A / 20A / 25A Lithium Battery Protection Board (BMS)

    The 5S 21V lithium battery protection board is designed for equipment that requires stable, high-current output—such as power tools, cordless cleaning machines, garden tools, e-bikes, energy storage modules, and industrial portable devices.
    It provides precise cell monitoring, fast short-circuit response, MOSFET-level current control, and reliable overcharge and over-discharge protection to ensure long-term battery safety.

    This BMS supports full OEM/ODM customization, including discharge current options (10A/15A/20A/25A), PCB layout, wire harness design, connector selection, and functional upgrades such as temperature sensors or communication modules.
    All units come with a 3-year warranty, offering long product life and strong assurance for commercial and industrial applications.

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  • 1S 3.7V Lithium Battery Protection Board 5A–25A BMS Module for Li-ion and Li-polymer Cells

    BMS 5A-25A for 1S 3.7V Lithium Battery

    Single-cell (1S) lithium battery protection board engineered for 3.7V Li-ion / Li-polymer cells. Supports continuous discharge currents of 5A, 10A, 15A, 20A or 25A with instantaneous/peak capability up to 50A (model dependent). Provides reliable overcharge, over-discharge, overcurrent, short-circuit and temperature protections. Low main-circuit resistance and high precision voltage detection deliver safe operation and extended cycle life for portable power, electric mobility and power tools.

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