1. What is Battery Capacity?

Battery capacity is a measure of the charge stored by the battery, typically measured in ampere-hours (Ah). It represents the amount of electric charge a battery can deliver at the rated voltage.

2. How Does the Calculator Work?

The calculator uses the battery capacity equation:

Where:

• \( Discharge\ Current \) — Current drawn from battery (Amperes)
• \( Runtime \) — Duration of discharge (hours)
• \( Capacity \) — Battery capacity (Ampere-hours)

Explanation: The equation calculates how much charge a battery can deliver based on the current draw and how long it can sustain that current.

3. Importance of Battery Capacity Calculation

Details: Knowing battery capacity is essential for designing power systems, estimating battery life, and ensuring proper sizing for applications.

4. Using the Calculator

Tips: Enter discharge current in amperes and runtime in hours. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between Ah and Wh?
A: Ah (Ampere-hours) measures charge capacity, while Wh (Watt-hours) measures energy capacity (Ah × Voltage).

Q2: Does temperature affect battery capacity?
A: Yes, capacity typically decreases at lower temperatures and may increase slightly at higher temperatures.

Q3: What is C-rate in batteries?
A: C-rate is the discharge current relative to battery capacity (1C means discharging at current equal to Ah rating in 1 hour).

Q4: How does depth of discharge affect battery life?
A: Shallower discharges generally prolong battery life compared to deep discharges.

Q5: Can this calculator be used for all battery types?
A: The basic calculation applies to most battery types, but actual capacity may vary based on chemistry and conditions.