CR1220 Battery Specification, Equivalent and Comparison

CR1220 batteries are small but mighty power sources used in various electronic devices, from watches to calculators and beyond. In this guide, we'll delve into the specifications of CR1220 batteries, explore their equivalents, and highlight their wide-ranging applications. Whether you're replacing a CR1220 or considering it for your project, this article provides valuable insights.

I. CR1220 Battery Overview

CR1220 batteries, sometimes referred to as coin cell batteries, are a popular choice for powering small electronic devices. They are part of the CR (lithium manganese dioxide) coin cell battery series, known for their compact size and reliable performance. CR1220 batteries are commonly used in various applications where a reliable, long-lasting power source is required.

CR1220 Battery

II. CR1220 Battery Specifications

CR1220 batteries are a popular choice for various small electronic devices, thanks to their compact size and reliable performance. Understanding their specifications is crucial for selecting the right power source for your applications. Here are the key specifications of CR1220 batteries:

Parameter	Specification
Battery Type	Lithium Manganese Dioxide Coin Cell (CR)
Voltage	3 Volts (3V)
Chemistry	Lithium Manganese Dioxide (Li-MnO2)
Capacity	30 to 40 milliampere-hours (mAh)
Size	Approximately 12mm (Diameter) x 2mm (Thickness)
Shelf Life	Up to 10 years or more
Operating Temperature	-20°C to 60°C (-4°F to 140°F)
Self-Discharge Rate	Low
Terminals	Flat, Circular on Both Sides
Polarity	"+" (Positive), "-" (Negative)
Weight	Approximately 0.7 to 0.8 grams

 

CR1220 Battery Size

These specifications make CR1220 batteries a versatile choice for powering various small electronic devices, such as watches, calculators, key fobs, medical devices, and more. When replacing batteries or designing products that require a compact and reliable power source, these specifications help ensure compatibility and optimal performance.

III. CR1220 Battery Equivalents

CR1220 batteries have several equivalents, including BR1220, DL1220, ECR1220, LM1220, DL1220B, BR1220-1W, CR1220-1W, 280-208, KCR1220, 5012LC, SB-T13, L04 and more. These equivalents share the same size and voltage specifications, making them suitable replacements for CR1220 batteries in various devices and applications. When choosing an equivalent battery, ensure it meets your specific needs and performs adequately in your device. Always check the manufacturer's recommendations for battery compatibility and consult your device's manual for guidance.

IV. Common Applications

CR1220 batteries are commonly used in various small electronic devices and applications that require a compact, coin-cell battery with a 3V voltage rating. Some of the typical uses include:

1. Watches: CR1220 batteries are often found in wristwatches, both analog and digital, to power the timekeeping functions and other features like backlighting.

2. Calculators: Many pocket-sized calculators rely on CR1220 batteries to provide a long-lasting power source for mathematical calculations.

3. Key Fobs: Remote key fobs for cars, garage doors, and security systems may use CR1220 batteries to power the remote's buttons and functions.

4. Fitness Trackers: Some fitness tracking devices, particularly those with smaller form factors, use CR1220 batteries to monitor and transmit data.

5. Computer Motherboards: Some computer motherboards use CR1220 batteries to maintain the real-time clock (RTC) and BIOS settings when the main power source is disconnected.

6. Toys: Small electronic toys, especially those with simple circuitry and LED lights, can use CR1220 batteries for power.

7. Medical Devices: Certain medical devices, such as glucometers and digital thermometers, may rely on CR1220 batteries for reliable operation.

8. Remote Controls: Some remote controls for home appliances, like ceiling fans or air conditioners, may use CR1220 batteries to power the infrared transmitter.

9. Electronic Gadgets: Various small electronic gadgets, including mini flashlights, digital thermometers, and novelty items, may use CR1220 batteries as a power source.

10. Backup Power: CR1220 batteries are also used as backup or memory retention batteries in some devices, ensuring that data and settings are preserved even when the main power source is removed.

V. CR1220 Battery Tips and Care

Taking care of your CR1220 batteries ensures their longevity and optimal performance. Here are some tips and care guidelines:

1. Storage: Store CR1220 batteries in a cool, dry place at room temperature. Extreme temperatures can affect their performance.

2. Polarity: Pay attention to the positive (+) and negative (-) markings on the battery. Insert them correctly in your device, following the manufacturer's instructions.

3. Avoid Mixing: Don't mix old and new batteries or batteries of different brands. Mixing can lead to uneven discharge and reduced overall performance.

4. Remove When Not in Use: If you don't plan to use a device for an extended period, remove the CR1220 battery to prevent potential leakage.

5. Keep Contacts Clean: Clean the battery contacts in your device and on the battery if you notice any signs of corrosion. Corrosion can hinder the electrical connection.

6. Dispose Properly: When it's time to replace your CR1220 battery, dispose of it following local recycling guidelines for lithium batteries. These batteries can be hazardous to the environment if not recycled properly.

7. Avoid Overdraining: If your device starts to show signs of low battery (dimming or erratic operation), replace the CR1220 battery promptly. Overdraining can lead to irreversible damage.

8. Keep Away from Children: CR1220 batteries, like all small batteries, can be a choking hazard. Keep them out of the reach of children.

9. Quality Matters: Opt for reputable brands when purchasing CR1220 batteries. High-quality batteries tend to offer better performance and reliability.

10. Check Expiry Date: When buying CR1220 batteries, check the expiry or manufacturing date. Fresher batteries are likely to perform better.

By following these tips, you can maximize the lifespan and efficiency of CR1220 batteries in your various devices.

VI. CR1220 vs. Other Coin Cell Batteries

CR1220, CR2032, and CR2450 are all coin cell batteries commonly used in various electronic devices. Here's a comparison of these batteries in terms of size, capacity, voltage, and typical applications:

1. Size and Dimensions:

• CR1220: 12mm in diameter and 2.0mm in height.

• CR2032: 20mm in diameter and 3.2mm in height.

• CR2450: 24.5mm in diameter and 5.0mm in height.

2. Capacity (mAh):

• CR1220: Typically around 35mAh.

• CR2032: Typically around 220mAh.

• CR2450: Typically around 600mAh.

3. Voltage:

• CR1220, CR2032, and CR2450 batteries all provide a nominal voltage of 3 volts. This voltage remains relatively stable throughout their lifespan.

4. Typical Applications:

• CR1220: Due to its smaller size and lower capacity, CR1220 batteries are often used in applications with lower power requirements. Common uses include small LED lights, key fobs, and some wearable devices.

• CR2032: CR2032 batteries are widely used in various electronic devices, including wristwatches, calculators, remote controls, and small medical devices. They strike a balance between size and capacity, making them versatile for many applications.

• CR2450: CR2450 batteries offer a higher capacity and are commonly used in devices that require more power, such as some electronic scales, keyless entry systems, and certain types of computer memory backup.

5. Lifespan:

• The lifespan of these batteries depends on factors like usage patterns, load, and environmental conditions. Generally, CR2450 batteries tend to have a longer lifespan than CR2032 batteries, while CR1220 batteries have the shortest lifespan due to their lower capacity.

6. Physical Compatibility:

• These batteries are not interchangeable due to differences in size. Devices designed for CR1220 batteries cannot accommodate CR2032 or CR2450 batteries, and vice versa.

7. Availability:

• CR2032 batteries are the most widely available and commonly used among these options. CR2450 batteries are also readily available but may be less common in some regions. CR1220 batteries are less commonly used and may be less readily available.

When selecting a coin cell battery for your device, it's essential to consider its size, capacity, and voltage requirements to ensure compatibility and sufficient power for the intended application.

Choosing the right battery involves considering factors like type, voltage, capacity, size, lifespan, operating temperature, rechargeability, self-discharge rate, cost, environmental impact, manufacturer reputation, safety features, compliance, and application-specific requirements. By weighing these factors, you can make an informed decision for your device or application.

VII. Conclusion

In conclusion, CR1220 batteries are small but mighty power sources used in various devices, from watches and calculators to remote controls and key fobs. Their compact size and longevity make them a popular choice for low-power applications. When replacing a CR1220 battery, it's crucial to follow safety precautions, handle the battery with care, and dispose of old batteries responsibly to protect the environment.

Understanding the specifications, equivalents, and common uses of CR1220 batteries empowers you to make informed choices when selecting the right power source for your devices. Whether you're a tech enthusiast, a DIY hobbyist, or simply someone who relies on everyday gadgets, knowing the ins and outs of CR1220 batteries can help you keep your devices running smoothly. So, the next time you need to replace a battery in your watch or any other compatible device, you'll be well-prepared to make the switch and enjoy uninterrupted functionality.