1. What is the Battery Capacity Equation?

The battery capacity equation converts watt-hours (Wh) to amp-hours (Ah) using the battery voltage. This calculation is essential for determining how long a battery can power a device.

2. How Does the Calculator Work?

The calculator uses the battery capacity equation:

Where:

• \( App\ Wh \) — Application watt-hours (energy consumption)
• \( V \) — Battery voltage (volts)
• \( Ah \) — Resulting amp-hours (battery capacity)

Explanation: The equation divides the total energy requirement (in watt-hours) by the battery voltage to determine the required capacity in amp-hours.

3. Importance of Battery Capacity Calculation

Details: Accurate battery capacity calculation ensures proper sizing of batteries for electronic devices, preventing premature power loss or oversized battery systems.

4. Using the Calculator

Tips: Enter the application's watt-hour requirement and battery voltage. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why convert Wh to Ah?
A: Battery capacity is typically rated in Ah, while energy consumption is often measured in Wh. This conversion helps match battery specs to application needs.

Q2: What's a typical battery voltage?
A: Common voltages include 3.7V (Li-ion), 12V (lead-acid), and 1.5V (alkaline). Check your battery specifications.

Q3: How do I determine my application's Wh?
A: Multiply the device's power consumption (in watts) by the desired runtime (in hours).

Q4: Does temperature affect this calculation?
A: Temperature affects actual battery performance but not this theoretical calculation. Real-world capacity may vary.

Q5: Should I add margin to the calculated Ah?
A: Yes, it's recommended to add 20-30% margin to account for battery aging and efficiency losses.