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CR2025 Coin Battery: A Comprehensive Guide

CR2025 Coin Battery: A Comprehensive Guide

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CR2025 Coin Battery: A Comprehensive Guide

Introduction

Coin batteries, also known as button cells, are small, flat, and circular batteries commonly used in various electronic devices. Among the most popular coin batteries is the CR2025, which has gained widespread use in a wide range of applications. This article provides a comprehensive guide to CR2025 coin batteries, covering their specifications, applications, advantages, and proper usage.

Specifications

The CR2025 coin battery is characterized by its compact size and high energy density. It has a nominal voltage of 3 volts and a typical capacity ranging from 150 to 175 milliamp-hours (mAh). The battery’s dimensions are 20 millimeters in diameter and 2.5 millimeters in thickness.

The CR2025 battery is a lithium-manganese dioxide battery, which means it uses lithium as the anode and manganese dioxide as the cathode. This combination provides a stable voltage output and a long shelf life.

Applications

CR2025 coin batteries are used in a vast array of electronic devices due to their compact size and high energy density. Some common applications include:

• Watches
• Calculators
• Key fobs
• Small toys
• Medical devices
• Fitness trackers
• Wireless sensors
• Memory backup systems

Advantages

CR2025 coin batteries offer several advantages that make them suitable for various applications:

• Compact size: Their small size allows for easy integration into space-constrained devices.
• High energy density: They provide a high amount of energy relative to their size.
• Stable voltage output: Lithium-manganese dioxide batteries maintain a consistent voltage throughout their discharge cycle.
• Long shelf life: CR2025 batteries have a shelf life of up to 10 years when stored properly.
• Wide temperature range: They can operate in a wide temperature range, typically from -30°C to +85°C.

Proper Usage

To ensure optimal performance and safety when using CR2025 coin batteries, it is important to follow proper usage guidelines:

• Polarity: Always ensure correct polarity when inserting the battery into a device. The positive (+) terminal should face upwards.
• Avoid short circuits: Never connect the positive and negative terminals directly, as this can cause a short circuit and damage the battery.
• Safe disposal: Dispose of used batteries responsibly at designated battery recycling centers.
• Storage: Store batteries in a cool, dry place away from heat sources. Avoid storing them in metal containers, as this can cause corrosion.

Safety Precautions

While CR2025 coin batteries are generally safe, it is important to take certain precautions to avoid potential hazards:

• Keep away from children: Coin batteries can be easily swallowed by young children, leading to serious health risks.
• Avoid ingestion: If a battery is accidentally ingested, seek medical attention immediately.
• Avoid contact with water: Batteries should not be exposed to water, as this can cause a chemical reaction and damage the device.
• Do not disassemble: Attempting to disassemble a coin battery can be dangerous and may cause a fire or explosion.

Conclusion

The CR2025 coin battery is a versatile and reliable power source for a wide range of electronic devices. Its compact size, high energy density, stable voltage output, and long shelf life make it an ideal choice for applications where space and power efficiency are critical. By following proper usage and safety guidelines, users can ensure the safe and optimal performance of CR2025 coin batteries.

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