1. What is Battery Capacity Calculation?

The battery capacity calculation determines how much energy storage (in amp-hours) is needed to power an inverter generator for a specific duration at a given voltage level.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Generator\ Inverter\ W \) — Power output of the inverter generator in watts
• \( Time \) — Duration of operation in hours
• \( V \) — System voltage in volts

Explanation: The formula converts power (watts) over time to amp-hours at a specific voltage, showing how much battery capacity is needed.

3. Importance of Battery Capacity

Details: Proper battery sizing ensures your generator system can provide sufficient power for the required duration without over-discharging batteries.

4. Using the Calculator

Tips: Enter the generator's inverter wattage, desired runtime in hours, and system voltage. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between Ah and Wh?
A: Amp-hours (Ah) measure charge capacity, while watt-hours (Wh) measure energy capacity. Wh = Ah × V.

Q2: Should I add a safety margin to the calculated capacity?
A: Yes, it's recommended to add 20-30% extra capacity to account for inefficiencies and battery aging.

Q3: Does this work for all battery types?
A: The calculation is universal, but different battery chemistries (lead-acid, lithium) have different usable capacity percentages.

Q4: How does temperature affect battery capacity?
A: Cold temperatures reduce available capacity, while high temperatures can shorten battery lifespan.

Q5: Can I connect multiple batteries?
A: Yes, batteries can be connected in parallel to increase capacity (Ah) while maintaining the same voltage.