1. What Is Battery Capacity?

Battery capacity is a measure of the charge stored by the battery and is typically measured in ampere-hours (Ah). It represents the amount of electric charge a battery can deliver at the rated voltage.

2. How Does The Calculator Work?

The calculator uses the battery capacity formula:

Where:

• \( Capacity \) — Battery capacity in ampere-hours (Ah)
• \( Total Energy \) — Total energy stored in watt-hours (Wh)
• \( Nominal Voltage \) — Rated voltage of the battery in volts (V)

Explanation: This formula converts energy capacity (Wh) to charge capacity (Ah) by dividing by the battery's nominal voltage.

3. Importance Of Battery Capacity Calculation

Details: Accurate battery capacity calculation is essential for determining runtime, sizing battery systems for applications, and comparing different battery technologies.

4. Using The Calculator

Tips: Enter total energy in watt-hours (Wh) and nominal voltage in volts (V). Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: Why convert from Wh to Ah?
A: Wh represents energy capacity, while Ah represents charge capacity. The conversion helps in understanding how long a battery can power a device at a specific voltage.

Q2: What is nominal voltage?
A: Nominal voltage is the average voltage a battery outputs when charged. Common values are 3.7V for lithium-ion, 12V for lead-acid, etc.

Q3: How accurate is this calculation?
A: The calculation provides theoretical capacity. Actual capacity may vary based on temperature, discharge rate, and battery age.

Q4: Can I use this for all battery types?
A: Yes, this formula works for any battery type as long as you know the total energy and nominal voltage.

Q5: How do I measure total energy?
A: Total energy is often provided by manufacturers. You can also calculate it by multiplying capacity (Ah) by nominal voltage (V).