1. What is Battery Capacity?

Battery capacity is a measure of the charge stored in a battery, typically measured in milliampere-hours (mAh). For scientific calculator batteries, size 12 is commonly used with a standard capacity (e.g., 30 mAh).

2. How Does the Calculator Work?

The calculator uses the standard capacity for size 12 batteries:

Where:

• \( Size \) — Battery size number (1-12)
• \( Standard \) — Base capacity for size 12 battery in mAh

Explanation: The calculator scales the capacity proportionally for other battery sizes based on the size 12 standard.

3. Importance of Capacity Calculation

Details: Knowing battery capacity helps estimate battery life and ensure compatibility with electronic devices like scientific calculators.

4. Using the Calculator

Tips: Enter battery size (1-12) and the standard capacity for size 12 batteries. The calculator will compute the expected capacity for the specified size.

5. Frequently Asked Questions (FAQ)

Q1: Why use size 12 as standard?
A: Size 12 is commonly used in scientific calculators, making it a practical reference point for capacity calculations.

Q2: What are typical capacity values?
A: For size 12, capacities typically range from 20-40 mAh depending on battery chemistry and manufacturer.

Q3: Does capacity vary by brand?
A: Yes, different manufacturers may have slightly different capacities for the same physical size.

Q4: How does capacity affect battery life?
A: Higher capacity batteries generally last longer in the same device under similar usage conditions.

Q5: Can this be used for rechargeable batteries?
A: The calculator works for both disposable and rechargeable batteries, though actual performance may vary.