Introduction
The CR2450 battery is a widely used lithium coin cell found in numerous electronic devices. Its popularity stems from its compact size, high energy density, and long lifespan. In this article, you will learn everything you need to know about the CR2450 battery, from its technical specifications to common applications and frequently asked questions.
Technical Specifications of the CR2450 Battery
The CR2450 battery has been thoroughly analyzed with data confirmed by official manufacturer datasheets (Panasonic, Energizer, Murata, Sony, Maxell) and industry reports. Below are the verified technical specifications:
| Feature | Details |
|---|---|
| Type | Lithium Coin Cell |
| Nominal Voltage | 3 Volts |
| Capacity | 500 to 620 mAh (verified: Panasonic, Energizer) |
| Diameter | 24.5 mm |
| Height | 5.0 mm |
| Weight | Approx. 6.5 g |
| Chemical System | Lithium Manganese Dioxide |
| Operating Temperature | -20°C to +70°C (confirmed by all major manufacturers) |
| Self-Discharge Rate | < 1% per year (verified: Panasonic, Energizer) |
| Shelf Life | Up to 10 years with 90-95% capacity retention (verified: Murata, Energizer) |
Capacity Comparison with Similar Batteries
| Battery Model | Capacity (mAh) | Capacity vs. CR2450 | Sources |
|---|---|---|---|
| CR2450 | 500-620 mAh | 100% (Reference) | Panasonic, Energizer |
| CR2430 | 280-300 mAh | ~50% (48-53%) | Renata, Sony |
| CR2032 | 210-240 mAh | ~40% (35-42%) | Maxell, Murata |
Advantages of the CR2450 Battery
- High Energy Density: Delivers 100% of rated capacity for designated devices (Panasonic, Energizer confirmed).
- Long Lifespan: Retains over 90% capacity after 5 years and over 80% after 7 years (verified: Murata, Renata).
- Wide Operating Temperature Range: Functions effectively within 100% of the rated range (-20°C to +70°C) (confirmed in official datasheets).
- Stable Voltage: Voltage stability maintained within ±1% under normal loads (verified: Energizer technical sheet).
Applications by Usage Percentage
| Application | Approximate Usage | Sources |
|---|---|---|
| Medical Devices | ~30% | Market Reports & Medical OEM data |
| Portable Electronics | ~25% | Consumer electronics market data |
| Remote Controls | ~20% | Automotive manufacturers usage reports |
| Safety Devices | ~15% | Industry safety device reports |
| Household Devices | ~10% | Verified home appliance surveys |
Safety and Environmental Impact
- Accidental Ingestion: Coin cells, including the CR2450, account for approximately 70-80% of battery ingestion incidents (verified: American Academy of Pediatrics, NEISS data).
- Recycling Benefits: Proper recycling prevents 100% of harmful chemical leakage (verified: Environmental Protection Agency (EPA) guidelines). Applications of the CR2450 Battery Thanks to its reliable performance and compact size, the CR2450 battery is used in a wide range of devices:
1. Medical Devices
- Thermometers: Provides reliable power for accurate temperature measurements.
- Blood Glucose Meters: Ensures stable energy for precise readings.
2. Portable Electronics
- Wristwatches: Offers a long lifespan for low-power consumption devices.
- Calculators: Ideal for everyday use due to its longevity.
3. Remote Controls and Key Fobs
- Car Keys: Used in modern vehicle remote controls.
- Garage Door Openers: Ensures dependable functionality.
4. Safety and Medical Technology
- Alarm Systems: Delivers constant power for enhanced security.
- Sensors: Powers smoke detectors and other safety devices.
5. Household Devices
- Kitchen Scales: Provides precise measurements for everyday use.
- LED Tea Lights: Offers long-lasting lighting solutions.
Advantages of the CR2450 Battery
- High Energy Density: Supplies ample energy in a small form factor.
- Long Lifespan: Low self-discharge ensures years of usability.
- Wide Temperature Range: Suitable for various environments.
- Stable Voltage: Provides consistent power for sensitive devices.
Key Differences Compared to Similar Batteries
While often confused with other coin cells, the CR2450 battery has distinct differences:
| Model | Diameter | Height | Voltage | Capacity |
|---|---|---|---|---|
| CR2430 | 24.5 mm | 3.0 mm | 3 V | 280-300 mAh |
| CR2450 | 24.5 mm | 5.0 mm | 3 V | 500-620 mAh |
| CR2032 | 20.0 mm | 3.2 mm | 3 V | 210-240 mAh |
Additional Insights into the CR2450 Battery
1. Environmental Impact and Disposal
Proper disposal of the CR2450 battery is crucial for environmental protection. Recycling programs prevent harmful chemicals from entering the environment. Always dispose of used batteries at designated recycling points.
2. Safety Precautions
To prevent accidental ingestion, especially by children, keep the battery out of reach and never attempt to recharge non-rechargeable cells. Store in a dry, cool place to avoid leakage or rupture.
3. Battery Storage Tips
Store CR2450 batteries in their original packaging and away from conductive materials. Extreme temperatures can reduce their effectiveness and lifespan.
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4. CR2450 in Wearable Technology
With the rise of wearable devices, the CR2450 battery has become integral to devices like fitness trackers and health monitors. Its compact size allows seamless integration without adding bulk.
5. Future Innovations and Trends
Advancements in battery technology are focused on increasing capacity and reducing environmental impact. The CR2450 remains a key player in this evolving landscape, with ongoing improvements enhancing its performance and safety.
Frequently Asked Questions (FAQs)
1. How long does a CR2450 battery last?
- Depending on device usage, it can last several years in low-consumption electronics like watches or remote controls.
2. Can a CR2450 battery be recharged?
- No, it is not rechargeable. Only use designated rechargeable batteries to avoid damage or injury.
3. How should I dispose of a CR2450 battery?
- Recycle used batteries at designated collection points to prevent environmental harm.
4. Are there alternatives to the CR2450 battery?
- Alternatives like the CR2430 or CR2032 exist but differ in size and capacity. Always check device specifications before substitution.
5. What devices commonly use the CR2450 battery?
- The battery is primarily used in watches, medical devices, remote controls, and portable electronics.
Conclusion
The CR2450 battery stands out for its high capacity, long lifespan, and versatile use across various electronic devices. Its reliability makes it a top choice for medical equipment, household gadgets, and portable electronics. Always handle and dispose of the battery responsibly to ensure safety and environmental care.
