1. What is Battery Capacity?

Battery capacity is a measure of the charge stored in a battery, typically measured in kilowatt-hours (kWh). It represents the total amount of energy a battery can deliver at the rated voltage.

2. How Does the Calculator Work?

The calculator uses the battery capacity formula:

Where:

• \( Voltage \) — Potential difference in volts (V)
• \( Current \) — Flow of electric charge in amperes (A)
• \( Time \) — Duration in hours (h)
• 1000 — Conversion factor from watt-hours to kilowatt-hours

Explanation: The formula calculates the total energy storage capacity by multiplying voltage, current, and time, then converting to kilowatt-hours.

3. Importance of Battery Capacity Calculation

Details: Knowing battery capacity is essential for designing power systems, estimating runtime, and comparing different battery technologies.

4. Using the Calculator

Tips: Enter voltage in volts, current in amps, and time in hours. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between Ah and kWh?
A: Amp-hours (Ah) measure charge capacity, while kilowatt-hours (kWh) measure energy capacity. kWh accounts for voltage differences.

Q2: How does temperature affect battery capacity?
A: Lower temperatures typically reduce available capacity, while higher temperatures may increase capacity but reduce battery life.

Q3: What is a typical battery capacity for home solar systems?
A: Residential systems often range from 5 kWh to 20 kWh, depending on energy needs and budget.

Q4: How accurate is this calculation?
A: This provides theoretical capacity. Actual usable capacity may be less due to efficiency losses and discharge rates.

Q5: Can I use this for different battery types?
A: Yes, the formula applies to all battery types (Li-ion, lead-acid, etc.), though actual performance varies by chemistry.