48V Battery Run Time Calculator

48V Battery Run Time Formula:

\[ \text{Run Time (hours)} = \frac{48V \times \text{Amp-hours (Ah)}} {\text{Load (Watts)}} \]

Estimated Run Time:

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1. What is the 48V Battery Run Time Calculator?

The 48V Battery Run Time Calculator estimates how long a 48V battery will last powering a specific load. It's essential for designing power systems, especially in solar, UPS, and electric vehicle applications.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \text{Run Time} = \frac{\text{Battery Voltage} \times \text{Battery Capacity (Ah)}}{\text{Load Power (Watts)}} \]

Where:

48V — Standard battery voltage
Ah — Amp-hour rating of the battery
Watts — Power consumption of the load

Explanation: The formula converts battery capacity to watt-hours (48V × Ah) then divides by load power to determine runtime.

3. Importance of Run Time Calculation

Details: Accurate runtime estimation helps in battery sizing, system design, and ensuring adequate power supply for critical applications.

4. Using the Calculator

Tips: Enter battery capacity in Ah and load power in Watts. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Does this account for battery efficiency?
A: No, this gives theoretical maximum. Real-world runtime may be 10-30% less due to efficiency losses.

Q2: What's a typical Ah rating for 48V batteries?
A: Common ratings range from 20Ah (small systems) to 200Ah+ (large installations).

Q3: Can I use this for batteries in series/parallel?
A: For series (same Ah), use total voltage. For parallel (same voltage), sum Ah ratings.

Q4: How does temperature affect runtime?
A: Cold temperatures can reduce effective capacity by 20-50% in lead-acid batteries.

Q5: Should I fully discharge my battery?
A: No, most batteries should only be discharged to 50-80% of capacity for longest life.