DALY BMS LFP Sameport 04S 40A W/P Lithium Iron Battery

The DALY BMS LFP Sameport 04S 40A W/P is a Battery Management System (BMS) specifically designed for 4S LiFePO4 (Lithium Iron Phosphate) battery packs. This BMS offers essential protections and management features to ensure the safe and efficient operation of the battery pack. It is particularly suited for medium voltage applications that require reliable and stable power.

Key Features:

1. Battery Type Compatibility:
   • LiFePO4 (LFP): This BMS is designed for Lithium Iron Phosphate (LiFePO4) batteries, known for their safety, long lifespan, and high thermal stability. LiFePO4 batteries are commonly used in applications like solar energy storage, electric vehicles (EVs), and backup power systems due to their robust performance and non-toxic nature.
2. Battery Configuration (04S):
   • 04S Configuration: The “04S” indicates that this BMS is intended for 4-series (4S) LiFePO4 battery packs. A 4S configuration means 4 cells connected in series, resulting in a nominal voltage of 12.8V (3.2V per cell) and a fully charged voltage of 14.6V (3.65V per cell). This makes it ideal for medium-voltage applications where stable 12V power is required.
   • Voltage Range: The typical battery voltage range for this configuration is 12.8V to 14.6V.
3. Current Rating:
   • 40A Continuous: This BMS can handle 40A of continuous current, making it suitable for applications that require higher discharge or charge rates. It is well-suited for power-hungry devices such as electric vehicles, solar power storage systems, and high-performance power tools.
   • Peak Current: The BMS can handle higher peak currents for short durations, typically around 80A, for applications that require brief bursts of power, such as startup loads or transient surges.
4. Same Port (Sameport):
   • Sameport Design: The “Sameport” feature means that this BMS uses a single port for both charge and discharge connections, simplifying the wiring and installation of the battery system. This design reduces complexity in battery pack integration and wiring, making it more user-friendly.
5. Protection Features (W/P – With Protection):
   • Over-voltage Protection: Prevents the battery cells from being charged beyond their safe voltage limits (typically around 3.65V per cell), which helps prevent overcharging and potential cell damage.
   • Under-voltage Protection: Protects the battery cells from discharging too much (usually below 2.5V per cell), preventing deep discharge that can damage the cells and reduce the overall lifespan of the battery pack.
   • Over-current Protection: Ensures that excessive current does not flow through the battery during charging or discharging, which could otherwise cause overheating or damage to the battery or BMS.
   • Short-circuit Protection: Disconnects the battery pack in case of a short circuit, preventing damage to both the battery cells and the system.
   • Over-temperature Protection: Monitors the battery’s temperature and disconnects the pack if the temperature exceeds a safe threshold (typically around 60°C to 70°C), ensuring the pack does not overheat during use.
6. Cell Balancing:
   • The BMS features cell balancing functionality, which ensures that all cells in the series-connected battery pack maintain an equal charge level. This balancing is crucial for maintaining battery health, improving efficiency, and prolonging the life of the battery pack.
   • The BMS uses passive balancing, redistributing energy from higher-voltage cells to lower-voltage cells during charging to maintain uniform voltage levels across the pack.
7. Applications:
   • Electric Vehicles (EVs): Suitable for electric bikes, scooters, or other small electric vehicles that require a 4S LiFePO4 battery pack.
   • Energy Storage Systems: Ideal for solar energy storage systems or off-grid energy storage, where a 12V battery pack is needed to store energy for later use.
   • Portable Power Stations: Can be used in portable power solutions to provide a reliable energy source in off-grid scenarios or as backup power.
   • Power Tools: Well-suited for high-power cordless power tools or robotics that require reliable and efficient energy storage.
8. Communication:
   • Many DALY BMS models support various communication protocols such as RS485, CAN bus, or Bluetooth, allowing for remote monitoring and control of the battery system. This feature helps users track battery status, including voltage, current, and temperature, to optimize battery performance and health.
9. Advantages:
   • Safety: With its comprehensive protection mechanisms, this BMS ensures the battery operates safely, preventing risks like overcharging, overheating, and short circuits.
   • Efficiency: The BMS optimizes the charging and discharging cycles of the battery, reducing energy loss and improving overall efficiency.
   • Long Battery Life: By ensuring proper cell balancing and preventing damage due to unsafe conditions, the BMS helps extend the lifespan of the battery pack.
   • Ease of Use: The Sameport design simplifies the installation and integration of the BMS into battery packs, making it easy for both manufacturers and end-users to implement the system.

Conclusion:

The DALY BMS LFP Sameport 04S 40A W/P is an efficient and reliable Battery Management System for managing 4S LiFePO4 battery packs. With its 40A continuous current rating, sameport design, and robust protection features, it is ideal for electric vehicles, solar energy storage systems, portable power stations, and power tools. The cell balancing and protection mechanisms ensure optimal performance and longevity of the battery pack, making it a safe and durable solution for a wide range of applications.