DALY BMS LFP 04S 20A W/P Lithium Iron Battery

The DALY BMS LFP 04S 20A W/P is a Battery Management System (BMS) designed specifically for 4S LiFePO4 (Lithium Iron Phosphate) battery packs. This BMS helps manage the battery pack’s charge and discharge processes, ensuring safety, efficiency, and long-term performance. Below is a detailed description of its features and capabilities:

Key Features:

1. Battery Type Compatibility:
   • LiFePO4 (LFP): The DALY BMS is designed for Lithium Iron Phosphate (LiFePO4) batteries, which are known for their high safety standards, long cycle life, and stability under various operating conditions.
   • LiFePO4 is commonly used in applications like solar energy storage, electric vehicles (EVs), power tools, and backup power systems due to its non-toxic nature and high thermal stability.
2. Battery Configuration (04S):
   • 04S Configuration: This BMS is designed for a 4-series (4S) LiFePO4 battery pack. A 4S configuration consists of 4 battery cells connected in series, which provides a nominal voltage of 12.8V (3.2V per cell) and a fully charged voltage of 14.6V (3.65V per cell).
   • This makes the BMS suitable for low to medium-voltage applications, such as small energy storage systems, electric bikes, or other portable devices.
3. Current Rating:
   • 20A Continuous: The BMS can handle 20A continuous current, which is suitable for many mid-range applications, including 12V systems, electric vehicles, and power tools.
   • Peak Current: It can also tolerate higher peak currents (typically around 40A for short durations), which may be required during moments of high power demand, such as when an electric vehicle accelerates or when a motor starts.
4. Protection Features (W/P – With Protection):
   • W/P (With Protection): The BMS is equipped with essential protection features to safeguard the battery pack and ensure its safe operation:
     • Over-voltage Protection: Prevents the cells from being charged beyond the safe voltage limit, typically around 3.65V per cell.
     • Under-voltage Protection: Ensures that the cells are not discharged too far below their safe operating range (usually around 2.5V per cell).
     • Over-current Protection: Limits the current drawn during charge and discharge cycles to avoid damaging the battery or the BMS.
     • Short-circuit Protection: Cuts off power to prevent damage in the event of a short circuit.
     • Over-temperature Protection: Monitors the temperature and disconnects the battery if it becomes too hot, typically around 60°C to 70°C.