1. What is the Battery Capacity Equation?

The battery capacity equation converts watt-hours (Wh) to amp-hours (Ah) using the battery voltage. This is essential for understanding battery capacity and comparing different battery types.

2. How Does the Calculator Work?

The calculator uses the battery capacity equation:

Where:

• \( Wh \) — Energy in watt-hours
• \( V \) — Voltage in volts
• \( Ah \) — Capacity in amp-hours

Explanation: The equation shows the relationship between energy (Wh), voltage (V), and capacity (Ah). Higher voltage batteries store more energy for the same Ah rating.

3. Importance of Battery Capacity Calculation

Details: Knowing the Ah rating helps determine how long a battery will last under specific loads and allows comparison between different battery types (Li-ion, lead-acid, etc.).

4. Using the Calculator

Tips: Enter the energy in watt-hours (Wh) and the battery voltage (V). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why convert Wh to Ah?
A: Ah is often used to specify battery capacity, while Wh represents total energy. Conversion helps compare batteries with different voltages.

Q2: What are typical Wh values for batteries?
A: Smartphone batteries: 10-20Wh, Laptop batteries: 40-100Wh, Car batteries: 500-1000Wh.

Q3: Does temperature affect the calculation?
A: The calculation is theoretical. Actual capacity may vary with temperature and discharge rate.

Q4: Can I use this for any battery type?
A: Yes, the equation works for all battery chemistries (Li-ion, NiMH, lead-acid, etc.).

Q5: How accurate is this calculation?
A: The calculation is mathematically precise, but real-world battery performance depends on many factors.