1. What is the Duracell Capacity Equation?

The Duracell capacity equation converts watt-hours (Wh) to amp-hours (Ah) using the battery's voltage. This helps compare battery capacities across different voltage systems.

2. How Does the Calculator Work?

The calculator uses the simple equation:

Where:

• \( Wh \) — Energy capacity in watt-hours
• \( V \) — Battery voltage in volts
• \( Ah \) — Resulting capacity in amp-hours

Explanation: This conversion is essential because battery capacity is often listed in watt-hours, but many applications require amp-hours for proper comparison and usage.

3. Importance of Battery Capacity Calculation

Details: Accurate capacity calculation is crucial for determining how long a battery will last in a given application, comparing different batteries, and designing battery systems.

4. Using the Calculator

Tips: Enter the watt-hour rating from your Duracell battery (usually printed on the battery) and its nominal voltage. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Where can I find the Wh rating on my Duracell battery?
A: Check the battery label or specifications sheet. For common AA/AAA batteries, it's typically between 2-4 Wh.

Q2: What voltage should I use for standard batteries?
A: Use 1.5V for alkaline (AA/AAA/C/D), 3.7V for lithium-ion, and 9V for 9-volt batteries.

Q3: Why convert Wh to Ah?
A: Ah is more useful for calculating runtime in specific circuits where current draw is known.

Q4: Does temperature affect capacity?
A: Yes, battery capacity typically decreases in very cold or hot temperatures.

Q5: Can I use this for non-Duracell batteries?
A: Yes, the calculation works for any battery when you know its Wh rating and voltage.