1. What is Inverter Battery Capacity?

The battery capacity in ampere-hours (Ah) determines how long your inverter can power your devices. It's calculated based on the power load, desired runtime, and battery voltage.

2. How Does the Calculator Work?

The calculator uses the battery capacity formula:

Where:

• \( \text{Inverter Load} \) — Total power consumption of connected devices (watts)
• \( \text{Time} \) — Desired runtime (hours)
• \( \text{Battery Voltage} \) — Voltage of your battery bank (volts)

Explanation: The formula converts watt-hours to ampere-hours by dividing by the battery voltage.

3. Importance of Battery Capacity Calculation

Details: Proper battery sizing ensures your inverter system can meet your power needs for the desired duration without over-discharging the batteries.

4. Using the Calculator

Tips: Enter the total wattage of all devices you want to power, the number of hours you need them to run, and your battery bank voltage. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I determine my inverter load?
A: Add up the wattage of all devices you plan to run simultaneously. Check device labels or manuals for power ratings.

Q2: What's a typical battery voltage for home inverters?
A: Common voltages are 12V, 24V, or 48V. The higher the voltage, the lower the current for the same power.

Q3: Should I oversize my battery bank?
A: Yes, it's recommended to add 20-30% capacity to account for inefficiencies and battery aging.

Q4: How does battery type affect capacity?
A: Lead-acid batteries should only be discharged to 50% of capacity for long life, while lithium can often discharge to 80-90%.

Q5: Can I connect batteries in series or parallel?
A: Series increases voltage, parallel increases capacity. Follow manufacturer guidelines for proper configuration.