2S 6.4V 10A LiFePO4 Battery Protection Board with Balance Function HW 392
VAT inclusive; Computed calculations added locally.
Overview
2S 6.4V 10A LiFePO4 BMS Protection Board
Build safer and more reliable 2S LiFePO4 battery packs with the 2S 6.4V 10A LiFePO4 Battery Protection Board with Balance Function. Designed specifically for two LiFePO4 cells connected in series, this compact protection board helps manage the battery pack during charging and discharging. Circuit Identification in HW-392
The board provides essential battery protection functions, including overcharge protection, over-discharge protection, over-current protection, and short-circuit protection. Its integrated cell balancing function helps reduce voltage differences between the two cells during charging, supporting more consistent pack performance.
With a nominal 6.4V 2S LiFePO4 configuration and a commonly specified 10A current rating, the board is suitable for a range of rechargeable battery projects, including portable electronics, robotics, backup power systems, DIY battery packs, and embedded applications.
The BMS is intended for use with LiFePO4 chemistry specifically. It should not be used with standard Li-ion or LiPo cells because their charging voltage characteristics are different.
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Product Technical Information
Technical Details
2S LiFePO4 Battery Protection Module
The 2S 6.4V 10A LiFePO4 Battery Protection Board is designed to protect and manage battery packs made from two LiFePO4 cells connected in series.
Two LiFePO4 cells produce a nominal pack voltage of approximately 6.4V, with a fully charged voltage of approximately 7.2V.
Cell Balancing Function
The integrated balancing function helps manage voltage differences between the two series-connected cells during charging. Cell balancing is important because individual cells can develop slightly different voltage levels and capacities during use.
Balancing helps maintain better consistency between the cells and can improve the usable performance of the battery pack.
Battery Protection Functions
The protection circuitry is designed to help safeguard the battery pack against several potentially damaging conditions:
- Overcharge protection
- Over-discharge protection
- Over-current protection
- Short-circuit protection
These functions help disconnect or limit the battery pack when abnormal electrical conditions are detected.
10A Current Capability
The board is commonly specified for a current rating of up to 10A. The actual usable continuous current depends on the board design, PCB temperature, wiring, battery cells, load characteristics, and installation conditions.
For high-current applications, appropriate wire gauge and thermal management should be used.
Designed for LiFePO4 Cells
This protection board is designed specifically for LiFePO4 batteries. LiFePO4 cells have different voltage characteristics from conventional lithium-ion and LiPo cells.
Do not substitute standard 3.7V Li-ion/LiPo cells for LiFePO4 cells with this BMS.
Suitable Applications
The 2S LiFePO4 protection board can be used for:
- DIY LiFePO4 battery packs
- Portable electronics
- Robotics
- Small backup power systems
- Embedded electronics
- Solar-powered projects
- IoT devices
- Battery-powered equipment
- DIY energy-storage projects
- Educational battery projects
Important Installation Note
The cells must be connected in the correct 2S configuration, and the BMS terminals must be wired according to the specific board's labeling and wiring diagram.
The BMS is a protection and balancing circuit, not necessarily a complete charger. A charger designed for 2S LiFePO4 batteries with the correct charging voltage should be used to charge the assembled pack.
Safety Note: Lithium battery packs can deliver high currents and can become hazardous if incorrectly assembled, charged, or short-circuited. Use matched cells, correct wiring, an appropriate LiFePO4 charger, and the manufacturer's specified BMS connections. Do not use damaged or swollen cells.
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