1. What is Battery Capacity?

Battery capacity is a measure of the charge stored in a battery, typically measured in ampere-hours (Ah). It indicates how much current a battery can supply over a specified time period.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \text{Energy} \) — Total energy in watt-hours (Wh)
• \( \text{Voltage} \) — Battery voltage in volts (V)

Explanation: The formula converts energy capacity (Wh) to charge capacity (Ah) by dividing by the battery voltage.

3. Importance of Battery Capacity Calculation

Details: Knowing a battery's capacity helps determine how long it can power a device, compare different batteries, and design battery systems.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between Wh and Ah?
A: Wh measures energy capacity (power × time), while Ah measures charge capacity (current × time). They're related by voltage (Wh = Ah × V).

Q2: Why is battery capacity important?
A: It determines how long a battery can power a device before needing recharge.

Q3: How accurate is this calculation?
A: It provides theoretical capacity. Actual capacity may vary due to temperature, discharge rate, and battery age.

Q4: Can I use this for all battery types?
A: Yes, it works for lithium-ion, lead-acid, NiMH, and other battery chemistries.

Q5: How do I find my battery's Wh rating?
A: Check manufacturer specifications or multiply Ah by nominal voltage (Wh = Ah × V).