DALY BMS LFP 04S120A Lithium Battery SamePort W/P

The DALY BMS LFP 04S120A is a Battery Management System (BMS) designed for lithium iron phosphate (LFP) batteries. Here’s a detailed description of its key features:

1. Voltage and Configuration:
   • It is designed for a 4S configuration, meaning it is intended to manage a 4-cell series battery pack.
   • Typically, each LFP cell has a nominal voltage of 3.2V, so the total nominal voltage for the 4S pack is 12.8V, with a fully charged voltage of 16.8V (4.2V per cell) and a discharged voltage of around 12V (3.0V per cell).
2. Current Rating:
   • The “120A” in the name refers to the maximum continuous current that the BMS can handle, which is 120A. This is important for high-power applications, ensuring that the system can support heavy discharge currents without causing damage.
3. SamePort:
   • The “SamePort” feature indicates that the BMS uses a single connection port for multiple functions. Typically, this includes charging, discharging, and balancing the battery pack. This simplifies installation and reduces the need for multiple connection points.
4. Balancing:
   • The BMS has an active or passive balancing function to ensure that all cells in the battery pack are charged evenly. Balancing prevents overcharging of individual cells, improving the battery’s lifespan and performance.
5. Protection Features:
   • Over-voltage and under-voltage protection to prevent damage to the cells.
   • Overcurrent and short-circuit protection to safeguard the battery pack from high current faults.
   • Temperature monitoring and protection to avoid overheating, which could lead to safety issues.
6. Communication:
   • The BMS may include communication features (like CAN or UART), allowing it to interface with other devices or systems for monitoring and control purposes. This is useful for integration into larger systems like electric vehicles, solar energy storage, or uninterruptible power supplies (UPS).
7. Applications:
   • This BMS is typically used in electric vehicles (EVs), solar power systems, and other energy storage applications that utilize LFP batteries.

This BMS helps manage the charging and discharging processes, enhancing the safety, longevity, and overall performance of the lithium iron phosphate battery pack.