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Inverter Battery Life Calculator

Inverter Battery Life Equation:

\[ \text{Life (hours)} = \frac{\text{Battery Ah} \times \text{Voltage (V)}}{\text{Inverter Power (W)}} \]

Ah
V
W

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1. What is Inverter Battery Life?

Inverter battery life refers to how long a battery can power an inverter at a given load. It's determined by the battery's capacity (Ah), voltage (V), and the power consumption (W) of the connected devices.

2. How Does the Calculator Work?

The calculator uses the following equation:

\[ \text{Life (hours)} = \frac{\text{Battery Ah} \times \text{Voltage (V)}}{\text{Inverter Power (W)}} \]

Where:

Explanation: The equation calculates how many hours the battery can supply the required power before needing recharge.

3. Importance of Battery Life Calculation

Details: Knowing your battery life helps in sizing your battery bank appropriately, planning backup duration, and preventing unexpected power outages.

4. Using the Calculator

Tips: Enter battery capacity in Ah, battery voltage in V, and inverter power in W. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What affects actual battery life?
A: Actual life may vary due to battery age, temperature, depth of discharge, and inverter efficiency (typically 85-95%).

Q2: Should I consider battery DoD (Depth of Discharge)?
A: Yes, for lead-acid batteries, don't discharge below 50% for optimal lifespan. Multiply result by 0.5 for conservative estimate.

Q3: What's typical battery voltage for home inverters?
A: Common voltages are 12V, 24V, or 48V systems. Check your battery specifications.

Q4: How can I increase battery life?
A: Use higher capacity batteries, reduce load, or connect batteries in parallel (with proper configuration).

Q5: Does inverter efficiency affect calculation?
A: Yes, divide result by inverter efficiency (e.g., for 90% efficient inverter, multiply by 0.9) for more accurate estimate.

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