Lithium Coin Cell CR2032 Battery Specifications

8 min read Sep 26, 2024
Lithium Coin Cell CR2032 Battery Specifications

The CR2032 battery is a ubiquitous power source found in a wide array of electronic devices, from watches and calculators to remote controls and key fobs. Its compact size and reliable performance have made it a popular choice for manufacturers and consumers alike. Understanding the specifications of this Lithium Coin Cell CR2032 battery is crucial for selecting the appropriate battery for your needs and ensuring optimal device performance. This article delves into the key specifications of the CR2032 battery, covering its voltage, capacity, dimensions, and other important factors.

Lithium Coin Cell CR2032 Battery Specifications

The Lithium Coin Cell CR2032 battery is a popular choice for powering various electronic devices due to its compact size, long shelf life, and reliable performance. Here is a detailed breakdown of its specifications:

Voltage and Capacity

  • Voltage: The CR2032 battery operates at a nominal voltage of 3.0 volts. This voltage remains relatively stable throughout the battery's discharge cycle, making it suitable for powering devices that require a constant voltage supply.
  • Capacity: The CR2032 battery typically has a capacity of around 220 mAh (milliampere-hour). This capacity refers to the amount of electrical charge the battery can deliver before its voltage drops below a certain threshold.

Dimensions and Weight

  • Dimensions: The CR2032 battery has a diameter of 20 mm (0.79 inches) and a height of 3.2 mm (0.13 inches). This small size makes it ideal for use in compact electronic devices where space is limited.
  • Weight: The CR2032 battery weighs approximately 2.5 grams. Its lightweight design contributes to its portability and ease of use in various applications.

Operating Temperature Range

  • Operating Temperature: The CR2032 battery is designed to operate within a specific temperature range. The recommended operating temperature range is typically between -20°C (-4°F) and 60°C (140°F). Exceeding these temperature limits can affect the battery's performance and lifespan.

Shelf Life and Storage

  • Shelf Life: Lithium Coin Cell CR2032 batteries have a long shelf life of up to 10 years when stored properly. This extended shelf life is attributed to the low self-discharge rate of lithium-ion batteries.
  • Storage: To maximize the shelf life of the CR2032 battery, it is recommended to store it in a cool, dry place away from direct sunlight and heat sources.

Safety Precautions

  • Do not short circuit: Short-circuiting a CR2032 battery can generate significant heat and potentially cause a fire. Always handle batteries with care and avoid placing metal objects in contact with the terminals.
  • Do not disassemble: Disassembling a CR2032 battery can expose you to hazardous materials and should be avoided.
  • Do not dispose of in fire: Batteries should not be disposed of in fire as they may explode or release toxic fumes. Follow local regulations for battery disposal.

Applications of Lithium Coin Cell CR2032 Batteries

The CR2032 battery is widely used in a variety of applications, including:

  • Watches: CR2032 batteries are commonly used in quartz watches due to their long lifespan and consistent voltage output.
  • Calculators: Portable calculators often rely on CR2032 batteries to power their LCD displays and circuitry.
  • Remote Controls: CR2032 batteries are frequently found in remote controls for televisions, stereos, and other electronic devices.
  • Key Fobs: Key fobs for car alarms and other security systems typically utilize CR2032 batteries for their compact size and reliable performance.
  • Medical Devices: Some medical devices, such as blood glucose meters and hearing aids, use CR2032 batteries as their power source.
  • Coin-Operated Devices: Vending machines, arcade games, and other coin-operated devices may utilize CR2032 batteries for internal circuitry and memory storage.
  • Other Electronics: CR2032 batteries are also used in a wide range of other electronic devices, including digital thermometers, cameras, and computer motherboards.

Choosing the Right Lithium Coin Cell CR2032 Battery

When choosing a Lithium Coin Cell CR2032 battery, it is essential to consider factors such as:

  • Brand reputation: Opt for batteries from reputable brands known for their quality and reliability.
  • Voltage and capacity: Ensure the battery's voltage and capacity meet the requirements of your device.
  • Operating temperature range: Choose a battery with an operating temperature range that aligns with the environment in which it will be used.
  • Shelf life: If you need a battery with a long shelf life, consider one that is specifically designed for extended storage.
  • Safety features: Look for batteries that meet industry safety standards and have appropriate safety features.

Conclusion

The Lithium Coin Cell CR2032 battery is a versatile and reliable power source that is widely used in various electronic devices. Understanding its specifications, including voltage, capacity, dimensions, and operating temperature range, is crucial for selecting the appropriate battery for your needs. By following the safety precautions and considering the factors outlined above, you can ensure the safe and optimal performance of your devices powered by CR2032 batteries.