CR1632: All You Need to Know About the Coin Cell Battery

Introduction to CR1632 Battery

The CR1632 battery is a small, coin-shaped lithium battery commonly used in various electronic devices, such as watches, calculators, key fobs, and medical devices. This battery is known for its long shelf life, high energy density, and reliable performance. In this comprehensive article, we will explore the features, specifications, applications, and proper handling of the CR1632 battery.

What is a CR1632 Battery?

A CR1632 battery is a 3V lithium coin cell battery with a diameter of 16mm and a height of 3.2mm. The “CR” in its name stands for “Chromium,” which is a key component in the battery’s construction. The numbers “16” and “32” represent the battery’s diameter and height in millimeters, respectively.

Key Features of CR1632 Batteries

• High energy density
• Long shelf life (up to 10 years)
• Stable voltage output
• Wide operating temperature range
• Lightweight and compact design

CR1632 Battery Specifications

Chemical Composition

The CR1632 battery is a lithium manganese dioxide (LiMnO2) battery. It consists of a lithium anode, a manganese dioxide cathode, and an organic electrolyte. The battery’s chemical composition contributes to its high energy density and stable performance.

Applications of CR1632 Batteries

CR1632 batteries are widely used in various electronic devices that require a compact, reliable, and long-lasting power source. Some common applications include:

1. Watches and clocks
2. Calculators
3. Car key fobs
4. Medical devices (e.g., glucose meters, hearing aids)
5. Toys and games
6. Small remote controls
7. Laser pointers
8. Backup power for computer BIOS and CMOS settings

Comparison with Other Coin Cell Batteries

CR1632 vs. CR2032

The CR2032 battery is slightly larger than the CR1632, with a diameter of 20mm and a height of 3.2mm. It also has a higher typical capacity of 225mAh. While the CR2032 can be used in some devices that require a CR1632, it may not fit in devices with tight space constraints.

CR1632 vs. CR1620

The CR1620 battery has the same diameter as the CR1632 (16mm) but a shorter height of 2.0mm. It has a lower typical capacity of 70mAh. The CR1620 can be used in devices that require an even more compact battery than the CR1632.

Proper Handling and Safety Precautions

When using CR1632 batteries, it is essential to follow proper handling and safety precautions to ensure optimal performance and prevent potential hazards.

Handling Guidelines

• Always insert the battery with the correct polarity (+ side facing up)
• Do not force the battery into a device
• Remove the battery from devices that will be stored for an extended period
• Keep batteries away from children and pets
• Do not mix old and new batteries or different battery types

Safety Precautions

• Do not recharge, disassemble, or dispose of CR1632 batteries in fire
• Avoid exposing batteries to extreme temperatures or direct sunlight
• If a battery leaks, avoid contact with skin and eyes; seek medical attention if necessary
• Properly dispose of used batteries according to local regulations

Frequently Asked Questions (FAQ)

1. Can I recharge a CR1632 battery?
   No, CR1632 batteries are non-rechargeable. Attempting to recharge them can lead to leakage, overheating, or even explosion.

2. How long does a CR1632 battery last?
   The lifespan of a CR1632 battery depends on the device and usage patterns. In low-drain devices, such as watches or key fobs, a CR1632 battery can last several years. In high-drain devices, the battery life may be shorter.

3. Are CR1632 batteries interchangeable with other coin cell batteries?
   While some devices may accept different coin cell batteries with similar dimensions, it is always best to use the battery type specified by the device manufacturer to ensure optimal performance and safety.

4. How should I store unused CR1632 batteries?
   Store unused CR1632 batteries in a cool, dry place away from direct sunlight and extreme temperatures. Keep them in their original packaging or a protective case to prevent short-circuiting.

5. How do I properly dispose of CR1632 batteries?
   CR1632 batteries should be disposed of according to local regulations. Many communities have designated battery recycling centers or collection points. Do not dispose of batteries in household waste, as they can harm the environment.

Conclusion

The CR1632 battery is a reliable and versatile coin cell battery that powers a wide range of electronic devices. Its compact size, high energy density, and long shelf life make it an ideal choice for applications that require a small, long-lasting power source. By understanding the specifications, applications, and proper handling of CR1632 batteries, users can ensure optimal performance and safety while using these batteries in their devices.