CR2025 3-Volt Coin Battery: A Comprehensive Guide

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CR2025 3-Volt Coin Battery: A Comprehensive Guide

CR2025 Battery 3 Volt Lithium Coin Batteries (Pack of 6) By Panasonic

Introduction

CR2025 is a widely used coin battery with a nominal voltage of 3 volts. It is commonly found in various electronic devices, including watches, calculators, key fobs, and medical devices. This battery’s compact size and high energy density make it suitable for powering small, portable devices.

Specifications and Features

  • Type: Lithium manganese dioxide (Li-MnO2)
  • Nominal voltage: 3 volts
  • Capacity: Typically 160-170 mAh
  • Diameter: 20 mm
  • Height: 2.5 mm
  • Weight: Approximately 2 grams
  • Operating temperature range: -30°C to +85°C (-22°F to +185°F)
  • Self-discharge rate: Less than 1% per year
  • Long shelf life: Typically 10 years or more

Applications

CR2025 batteries are commonly used in the following applications:

  • Watches
  • Calculators
  • Key fobs
  • Remote controls
  • Hearing aids
  • Medical devices (e.g., glucose monitors)
  • Memory backup for electronic devices

Advantages

  • Compact size: CR2025 batteries are small and lightweight, making them ideal for space-constrained devices.
  • High energy density: Despite their small size, CR2025 batteries provide a high amount of energy, ensuring a longer operating time for devices.
  • Stable voltage: The voltage of a CR2025 battery remains relatively constant throughout its discharge cycle, providing consistent performance for devices.
  • Long shelf life: CR2025 batteries have a long shelf life of up to 10 years or more, making them suitable for long-term storage.
  • Wide operating temperature range: These batteries can operate in a wide temperature range, from -30°C to +85°C, making them suitable for various environmental conditions.

Safety Precautions

  • Avoid short-circuiting: Do not connect the positive and negative terminals of the battery directly. This can cause a short circuit and potentially lead to fire or explosion.
  • Dispose of properly: Used CR2025 batteries should be disposed of properly at designated recycling centers or battery collection points.
  • Keep away from children: Keep batteries out of reach of children, as they can be a choking hazard.
  • Do not disassemble: Do not attempt to disassemble or modify the battery, as this can be dangerous.

Storage and Handling

  • Store CR2025 batteries in a cool, dry place.
  • Avoid exposing batteries to extreme temperatures or direct sunlight.
  • Keep batteries in their original packaging or in a battery storage case to prevent accidental contact.

Testing and Replacement

  • To test a CR2025 battery, use a battery tester to measure its voltage. A voltage reading of around 3 volts indicates a good battery.
  • Replace CR2025 batteries when the voltage drops below 2.8 volts or when the device starts malfunctioning.
  • Always refer to the device’s user manual for specific battery replacement instructions.

Conclusion

CR2025 3-volt coin batteries are a reliable and versatile power source for a wide range of electronic devices. Their compact size, high energy density, and long shelf life make them an excellent choice for powering small, portable devices. By following proper safety precautions and handling guidelines, you can ensure the safe and effective use of CR2025 batteries.

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