1. What is the 24V Inverter Battery Size Calculation?

The 24V inverter battery size calculation determines the required battery capacity (in amp-hours) needed to power your inverter for a specified duration. This ensures your battery bank can adequately support your power needs.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( \text{Inverter W} \) — Power consumption of your inverter in watts
• \( \text{Time} \) — Duration you need the inverter to run in hours
• \( \text{24 V} \) — System voltage (24 volts)

Explanation: The formula converts watt-hours to amp-hours at 24 volts, giving you the battery capacity needed.

3. Importance of Proper Battery Sizing

Details: Correct battery sizing prevents over-discharge (which damages batteries) and ensures your system can meet power demands. Undersized batteries lead to power shortages, while oversized systems are unnecessarily expensive.

4. Using the Calculator

Tips: Enter your inverter's wattage (continuous power rating) and the number of hours you need it to run. For safety, add 20-30% to the calculated value to account for inefficiencies and battery aging.

5. Frequently Asked Questions (FAQ)

Q1: Should I use peak or continuous wattage?
A: Use the continuous wattage rating of your inverter for this calculation. Peak wattage is only for short surges.

Q2: How does this change for 12V or 48V systems?
A: Simply replace the 24V in the formula with your system voltage (12 or 48).

Q3: What about battery depth of discharge?
A: Most lead-acid batteries shouldn't be discharged below 50%. Divide the result by 0.5 for lead-acid, or use the raw value for lithium.

Q4: Does inverter efficiency affect this?
A: Yes, typical inverters are 85-95% efficient. Divide the result by 0.9 to account for ~90% efficiency.

Q5: How many batteries do I need?
A: Divide the Ah result by your individual battery's Ah rating to determine how many batteries to connect in parallel.