1. What is mAh to Wh Conversion?

The mAh (milliamp hours) to Wh (watt hours) conversion calculates the energy capacity of a battery by accounting for both its charge capacity and voltage. This is important for comparing batteries with different voltages.

2. How Does the Calculator Work?

The calculator uses the conversion formula:

Where:

• \( mAh \) — milliamp hours (battery capacity)
• \( V \) — voltage of the battery
• \( Wh \) — watt hours (energy capacity)

Explanation: The formula converts charge capacity (mAh) to energy capacity (Wh) by incorporating the battery's voltage.

3. Importance of Energy Calculation

Details: Knowing the watt-hours helps compare batteries with different voltages and estimate how long a device will run on a particular battery.

4. Using the Calculator

Tips: Enter the battery's mAh rating and its nominal voltage. Common voltages are 3.7V (lithium-ion), 3.2V (LiFePO4), and 12V (lead-acid).

5. Frequently Asked Questions (FAQ)

Q1: Why convert mAh to Wh?
A: Wh gives the actual energy capacity regardless of voltage, allowing comparison between different battery types.

Q2: What's a typical Wh for a smartphone battery?
A: About 10-15 Wh (e.g., 3000mAh at 3.7V = 11.1 Wh).

Q3: How does voltage affect the calculation?
A: Higher voltage means more energy for the same mAh rating.

Q4: Can I use this for power banks?
A: Yes, but note power banks have conversion losses (typically 15-30%).

Q5: What's the difference between mAh and Wh?
A: mAh measures charge capacity, Wh measures energy capacity (power over time).