1. What Are Coin Cell Battery Voltages?

Coin cell batteries are small, button-shaped batteries with standardized voltage outputs. Different types have different nominal voltages that are important for electronic device compatibility.

2. How Does the Calculator Work?

The calculator provides the nominal voltage for common coin cell battery types:

Explanation: These are standard nominal voltages when the batteries are fresh. Actual voltage may vary slightly by manufacturer and decrease with use.

3. Importance of Battery Voltage

Details: Using the correct voltage battery is crucial for electronic devices. Too high voltage can damage components, while too low voltage may prevent proper operation.

4. Using the Calculator

Tips: Simply select the battery type from the dropdown menu and click "Get Voltage" to see its nominal voltage.

5. Frequently Asked Questions (FAQ)

Q1: Are all 3V coin cells interchangeable?
A: While they share the same voltage, physical size differs (CR2032 is thicker than CR2025). Check device specifications.

Q2: What does the "CR" prefix mean?
A: CR indicates lithium chemistry (3V), while LR indicates alkaline (1.5V) and SR indicates silver oxide (1.55V).

Q3: How long do these batteries last?
A: Lifespan varies by battery type and load. CR2032 typically lasts 3-5 years in low-power devices like watches.

Q4: Can I use a higher capacity battery?
A: Yes, as long as voltage matches and physical size fits (e.g., CR2032 instead of CR2025 if space allows).

Q5: Why do some batteries have different voltages?
A: Different chemistries produce different voltages (lithium vs alkaline vs silver oxide).