1. What is Battery Pack Capacity?

Battery pack capacity refers to the total amount of electric charge a battery can deliver at the rated voltage. It's calculated by multiplying the capacity of individual cells by the number of cells connected in parallel.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( Cell\ Ah \) — Capacity of individual battery cell in amp-hours
• \( Parallel\ Cells \) — Number of cells connected in parallel

Explanation: When batteries are connected in parallel, their capacities add up while voltage remains the same.

3. Importance of Pack Capacity Calculation

Details: Knowing the total pack capacity is essential for determining runtime, energy storage, and proper system sizing in electrical applications.

4. Using the Calculator

Tips: Enter the capacity of a single cell in amp-hours and the number of parallel cells. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Does this apply to all battery types?
A: Yes, the formula works for lithium-ion, lead-acid, NiMH, and other battery chemistries when calculating capacity.

Q2: How does series connection affect capacity?
A: Series connections increase voltage but don't affect the total Ah capacity of the pack.

Q3: What's the difference between Ah and Wh?
A: Amp-hours (Ah) measure charge capacity, while watt-hours (Wh) measure energy capacity (Ah × Voltage).

Q4: Can I mix different capacity cells?
A: It's not recommended as it can lead to imbalance and reduced performance or safety issues.

Q5: How accurate is this calculation?
A: The calculation is mathematically precise, but real-world performance may vary based on temperature, age, and discharge rate.