1. What is the Battery Life Equation?

The battery life equation calculates how long a battery will last based on its capacity (in milliamp-hours) and the current draw (in milliamps) of the device it's powering. This helps compare different brands of 2032 batteries (like Energizer vs Duracell).

2. How Does the Calculator Work?

The calculator uses the battery life equation:

Where:

• \( \text{Brand Capacity} \) — Battery's rated capacity in milliamp-hours (mAh)
• \( \text{Draw} \) — Current consumption of device in milliamps (mA)

Explanation: The equation divides the total charge capacity by the rate of consumption to determine runtime.

3. Importance of Battery Life Calculation

Details: Calculating battery life helps select the best battery for long-duration applications and compare performance between different brands.

4. Using the Calculator

Tips: Enter the battery's rated capacity (typically 200-240mAh for CR2032) and your device's current draw. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Which 2032 battery brand lasts longest?
A: Typically Energizer or Duracell have the highest capacities (usually 225-240mAh), but check manufacturer specs as capacities vary.

Q2: How accurate is this calculation?
A: It provides theoretical maximum. Real-world results vary due to temperature, discharge curve, and other factors.

Q3: What affects CR2032 battery life?
A: Capacity rating, discharge rate, operating temperature, and cutoff voltage of the device.

Q4: Can I use this for other battery types?
A: Yes, the equation works for any battery if you know its mAh rating and the device's current draw.

Q5: How do I measure my device's current draw?
A: Use a multimeter in series with the battery to measure current consumption during operation.