HX-4S-F30A 4S 30A 14.8V Lithium ion Li-ion Battery Protection Board BMS

The HX-4S-F30A 4S 30A Lithium Battery Protection Board (BMS) is an essential safety module for building and maintaining custom 14.8V lithium-ion battery packs. Rated for a continuous 30A discharge current, this board actively monitors voltage and manages the safe charging and discharging of 4-cell series configurations, preventing dangerous overcharge, over-discharge, or short-circuit scenarios.

Ideal for high-power DIY electronics, custom drones, e-bikes, and portable power stations, this BMS features integrated active cell balancing (equalization). This ensures each cell charges evenly, maximizing the lifespan, efficiency, and safety of your 18650 or LiPo cells. Its compact 56x48mm footprint makes it incredibly easy to integrate into custom 3D-printed battery enclosures or heat-shrink packs.

Features:

• 4S Configuration: Designed specifically for 4-cell 14.8V (nominal 3.7V per cell) lithium battery packs.
• High Current Handling: Supports a robust 30A continuous discharge current for demanding load applications.
• Integrated Equalization: Features active cell balancing to maintain equal voltage across all cells during the charging cycle.
• Comprehensive Protection: Provides reliable overcharge, over-discharge, overcurrent, and short-circuit protection for maximum safety.
• Compact Footprint: Measures just 56mm x 48mm x 4mm, making it perfect for custom DIY battery enclosures and tight spaces.

Package Includes:

1 x HX-4S-F30A 4S 30A 14.8V Lithium Battery Protection Board