CR2025 Button Cell Battery: A Comprehensive Guide
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CR2025 Button Cell Battery: A Comprehensive Guide
Introduction
CR2025 button cell batteries are small, coin-shaped batteries commonly used in a wide range of electronic devices, such as watches, key fobs, calculators, and medical equipment. They provide a reliable and long-lasting power source for low-power applications. This comprehensive guide will explore the key characteristics, applications, and best practices for using CR2025 button cell batteries.
Technical Specifications
- Nominal Voltage: 3 volts
- Chemistry: Lithium manganese dioxide (Li-MnO2)
- Capacity: Typically 160-175 mAh
- Diameter: 20 mm (0.79 inches)
- Height: 2.5 mm (0.098 inches)
- Weight: Approximately 2 grams
Characteristics
- High Energy Density: Despite their compact size, CR2025 batteries offer a high energy density, providing a substantial amount of power for their weight.
- Long Shelf Life: These batteries have an extended shelf life of up to 10 years when stored at room temperature.
- Stable Voltage Output: CR2025 batteries maintain a consistent voltage output throughout their discharge cycle, ensuring reliable performance.
- Compact and Lightweight: Their small size and light weight make them ideal for space-constrained applications.
Applications
CR2025 button cell batteries are widely used in various electronic devices, including:
- Watches and clocks
- Key fobs and remote controls
- Calculators
- Medical devices (e.g., glucose monitors, hearing aids)
- Toys and games
- Security systems
- Fitness trackers
Best Practices for Use
- Proper Handling: Handle CR2025 batteries with care to avoid short circuits. Store them in their original packaging or a dedicated battery case.
- Avoid Mixing Types: Do not mix different types of batteries (e.g., alkaline, lithium) in the same device.
- Correct Orientation: Ensure the positive (+) and negative (-) terminals of the battery align correctly with the corresponding terminals in the device.
- Safe Disposal: Dispose of used CR2025 batteries responsibly at designated recycling centers.
Safety Considerations
- Short Circuit Risk: CR2025 batteries can short circuit if they come into contact with metal objects. Keep them away from loose coins, keys, or other conductive materials.
- Fire Hazard: In rare cases, CR2025 batteries may overheat and catch fire if they are damaged or mishandled.
- Battery Leakage: If a CR2025 battery leaks, avoid direct contact with the leaked material. Clean the affected area with a cloth dampened with white vinegar.
Alternative Battery Options
In some cases, alternative battery options may be suitable for specific applications:
- CR2016: A smaller button cell battery with a lower capacity (90-100 mAh) and a diameter of 16 mm.
- CR2032: A larger button cell battery with a higher capacity (220-240 mAh) and a diameter of 23 mm.
- Lithium Coin Cell: A non-rechargeable coin cell battery with a similar voltage and capacity to CR2025 batteries, but with a different chemistry and form factor.
Conclusion
CR2025 button cell batteries are versatile and reliable power sources for a wide range of electronic devices. Their compact size, long shelf life, and stable voltage output make them a popular choice for low-power applications. By following the best practices for use and safety precautions, users can ensure optimal performance and longevity of these batteries. Understanding the technical specifications, applications, and alternative options will help you make informed decisions when selecting and using CR2025 button cell batteries.
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