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 provide over a specific period of time.

2. How Does the Calculator Work?

The calculator uses the battery capacity formula:

Where:

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

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

3. Importance of Battery Capacity Calculation

Details: Knowing battery capacity is essential for designing power systems, estimating runtime, and selecting appropriate batteries for specific applications.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between Wh and Ah?
A: Watt-hours (Wh) measure energy, while ampere-hours (Ah) measure charge. Wh accounts for voltage while Ah doesn't.

Q2: How do I convert Ah to Wh?
A: Multiply Ah by voltage (V) to get Wh. The formula is: Wh = Ah × V.

Q3: What is a typical battery capacity?
A: Capacity varies widely - from 1Ah in small batteries to 100+Ah in car batteries or solar storage systems.

Q4: Does temperature affect battery capacity?
A: Yes, capacity typically decreases in cold temperatures and may increase slightly in warm temperatures.

Q5: How does discharge rate affect capacity?
A: Higher discharge rates often result in lower effective capacity (Peukert effect).