1. What is LiFePO4 Battery Run Time Calculation?

LiFePO4 (Lithium Iron Phosphate) battery run time calculation estimates how long a battery can power a UPS system under a specific load. This is crucial for backup power planning and system design.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• Capacity — Battery capacity in Ampere-hours (Ah)
• Load — Current draw in Amperes (A)

Explanation: This formula calculates the theoretical run time by dividing the total battery capacity by the current consumption rate.

3. Importance of Run Time Calculation

Details: Accurate run time estimation is essential for UPS system design, ensuring adequate backup power during outages, and proper battery sizing for critical applications.

4. Using the Calculator

Tips: Enter battery capacity in Ah and load current in A. Both values must be positive numbers. The result shows estimated run time in hours.

5. Frequently Asked Questions (FAQ)

Q1: Is this calculation accurate for real-world applications?
A: This provides theoretical maximum run time. Actual run time may be shorter due to factors like battery age, temperature, and discharge rate.

Q2: What's the typical capacity range for LiFePO4 UPS batteries?
A: LiFePO4 batteries for UPS systems typically range from 10Ah to 200Ah, depending on the application and power requirements.

Q3: How does discharge rate affect run time?
A: Higher discharge rates can reduce effective capacity due to internal resistance and Peukert's effect, though LiFePO4 batteries handle high discharge rates better than lead-acid.

Q4: Should I consider depth of discharge?
A: Yes, for optimal battery life, avoid discharging LiFePO4 batteries below 20% capacity. Factor this into your run time calculations.

Q5: How does temperature affect battery performance?
A: LiFePO4 batteries perform best at room temperature. Extreme cold reduces capacity, while extreme heat can accelerate degradation.