To determine the capacity and capabilities of a battery pack consisting of four cells of 72Ah LiFePO4 (Lithium Iron Phosphate) prismatic batteries, you can calculate the overall capacity and voltage. Here’s how you can do it:
1. Calculate Total Capacity:
- LiFePO4 cells typically have a nominal voltage of 3.2 volts per cell. For a 4-cell battery pack:
- Total Capacity = Individual Cell Capacity * Number of Cells
- Total Capacity = 72Ah * 4
- Total Capacity = 288Ah
2. Determine Voltage:
- The nominal voltage of a LiFePO4 cell is around 3.2 volts.
- Total Voltage = Individual Cell Voltage * Number of Cells
- Total Voltage = 3.2V * 4
- Total Voltage = 12.8 volts
3. Assess Applications:
- The 4-cell LiFePO4 battery pack you’ve described has a total capacity of 288Ah with a nominal voltage of 12.8 volts. This configuration is suitable for various applications, including:
- Solar power storage
- Electric vehicles
- Off-grid power systems
- Backup power for homes or businesses
4. Calculate Energy Storage:
- Energy (in watt-hours) can be calculated using the formula: Energy (Wh) = Voltage (V) * Capacity (Ah)
- Energy = 12.8V * 288Ah
- Energy = 3,686.4 Wh or 3.686 kWh
5. Consider Discharge Rates:
- LiFePO4 batteries can provide relatively high discharge rates. The discharge rate is often specified in terms of “C.” For example, a 1C discharge rate for a 288Ah battery would be 288A.
Important Note:
- The actual performance and lifespan of a LiFePO4 battery pack depend on factors like the quality of the cells, the design of the pack, charging and discharging conditions, and the overall management system. It’s crucial to follow manufacturer recommendations and specifications for charging, discharging, and maintaining the battery pack.
This information provides a general overview of the capabilities of a 4-cell LiFePO4 battery pack with 72Ah prismatic cells. For specific details about the cells you have, consult the manufacturer’s datasheet or documentation for accurate information on performance, discharge rates, and recommended usage scenarios.
