CR1220 Lithium Coin Battery: Datasheet, Equivalent, and Comparison with BR1220

Lithium coin batteries are ubiquitous in modern electronic devices, valued for their compact size, long shelf life, and reliable performance. The CR1220 is one of these that is particularly well-liked. This blog post delves deeply into the CR1220 lithium coin battery, covering its datasheet specifications, equivalent batteries, and a detailed comparison with the BR1220 battery.

Battery Change on Casio G-Shock GMA-S110. battery CR1220

Catalog

• Introduction
• Dimensions of CR1220 Lithium Coin Battery
• Models of CR1220 Lithium Coin Battery
• Key Features of CR1220 Lithium Coin Battery
• CR1220 Datasheet Specifications
• Applications of CR1220 Lithium Coin Battery
• Equivalent Batteries to CR1220
• Comparison: CR1220 vs. BR1220
• Comparing: CR1216, CR1220, and CR1225 batteries
• Manufacturer of CR1220 Lithium Coin Battery
• Conclusion
• 
  

Introduction

BATTERY LITHIUM 3V COIN 12.5MM

The CR1220, also known as a lithium coin battery or button cell, is primarily utilized in high-power devices such as keyless entry systems, glucose monitors, heart-rate monitors, and various toys and games.

This battery features a cylindrical shape and is renowned for its long-lasting power retention. Remarkably, if left unused for one year, it will only lose about 1% of its total capacity due to its low self-discharge rate.

Compared to the CR2032, the CR1220 has different specifications in terms of capacity, weight, and lithium content. The CR1220 has a capacity of 35mAh, weighs 0.8 grams, and contains 0.006 grams of lithium. In contrast, the CR2032 boasts a capacity of 285mAh, a weight of 3 grams, and contains 0.109 grams of lithium.

The CR1220 is a great option for applications where accessibility is a problem and space is at a premium due to its small and compact form.

Nonetheless, it is imperative to keep this battery out of children's reach. If ingested, the chemical composition of the CR1220 can cause severe health issues or even be fatal in certain situations. Therefore, the appropriate safety measures should be put in place.

Dimensions of CR1220 Lithium Coin Battery

CR1220 Dimensions

Models of CR1220 Lithium Coin Battery

CR1220 Symbol

CR1220 Footprint

Key Features of CR1220 Lithium Coin Battery

1. Voltage: 3V

The CR1220 has a nominal voltage of 3 volts. This voltage is typical for lithium coin batteries and remains relatively stable throughout the battery's discharge cycle. The stable voltage is critical for the reliable operation of electronic devices, ensuring consistent performance over the battery's lifespan. This steady power supply is necessary for the proper operation of devices like watches, calculators, and medical equipment.

2. Capacity: 35mAh (Typical)

Capacity is a measure of the total charge a battery can store, typically expressed in milliampere-hours (mAh). With a normal capacity of 35mAh, the CR1220 can supply 35 milliamperes of current for an hour before running out of power. This capacity is adequate for low-power devices that require small amounts of current over extended periods. The discharge rate and operational conditions can cause a little variation in the actual capacity.

3. Diameter: 12mm

The diameter of the CR1220 is 12 millimeters. Due to their small size, the batteries can be included into electrical equipment that have limited space. The standard diameter ensures compatibility with a wide range of battery holders and compartments designed for coin cells of this size.

4. Height: 2.0mm

The height of the CR1220 is 2.0 millimeters. This slim profile is beneficial for applications where thickness is a critical factor, such as thin watches and other compact electronic gadgets. The 2.0mm height, combined with the 12mm diameter, defines the CR1220's compact form factor, making it a versatile choice for various design requirements.

5. Weight: 0.8g

The CR1220 weighs approximately 0.8 grams. Its low weight adds very little to the total weight, which is useful for portable electronics. In applications where user comfort is a top concern, such as fitness trackers and wearable devices, this functionality is very crucial.

6. Operating Temperature Range: -20°C to +70°C

The CR1220 operates effectively within a temperature range of -20°C to +70°C. This wide operating range ensures that the battery will function dependably under various climatic conditions. Whether used in cold climates or hot environments, the CR1220 maintains its performance, making it suitable for outdoor and industrial applications.

7. Self-Discharge Rate: ~1% per year

The self-discharge rate of a battery indicates the percentage of charge lost per year when the battery is not in use. With a self-discharge rate of roughly 1% per year, the CR1220 boasts a long shelf life. This low self-discharge rate is crucial for devices that are stored for extended periods before use or for backup power applications where the battery needs to remain charged and ready for use over many years.

CR1220 Datasheet Specifications

Understanding the datasheet specifications of the CR1220 is crucial for selecting the right battery for your application. Below, we delve into the critical parameters and their significance.

Electrical Characteristics

 ● Nominal Voltage: The nominal voltage of the CR1220 is 3 volts, which is typical for lithium coin cells. This voltage maintains a consistent level of performance throughout its discharge cycle.

 ● Nominal Capacity: With a typical capacity of 35mAh, the CR1220 provides ample energy for low-power devices. Capacity can vary slightly based on discharge rate and operating conditions.

 ● Standard Discharge Current: The battery is designed for low discharge currents, making it suitable for devices with low to moderate power requirements.

Physical Dimensions

 ● Diameter: The CR1220 has a diameter of 12mm, fitting the standard size for many coin cell applications.

 ● Height: At 2.0mm, the battery's height is also standard, ensuring compatibility with various battery holders and compartments.

 ● Weight: The CR1220 adds only 0.8 grams to the total weight of the device, making it a lightweight gadget.

Performance Characteristics

 ● Operating Temperature Range: The CR1220 operates effectively within a temperature range of -20°C to +70°C. This broad range guarantees dependable operation in a variety of environmental circumstances.

 ● Self-Discharge Rate: The battery exhibits a low self-discharge rate of about 1% per year, allowing for long shelf life and reliability in standby power applications.

Construction and Safety

 ● Chemical System: The CR1220 utilizes a lithium manganese dioxide (Li-MnO2) chemistry, known for its high energy density and stable discharge voltage.

 ● Safety Features: The battery is designed with safety mechanisms to prevent leakage and explosion under normal usage conditions.

Overview of Technical Datasheets

Applications of CR1220 Lithium Coin Battery

1. Watches

One of the most popular uses for the CR1220 battery is in watches. The CR1220's tiny size makes it simple to incorporate into the small, contemporary wristwatch designs. These batteries are very well-liked since they can maintain a steady voltage for an extended amount of time, which guarantees precise timekeeping. Because of the CR1220's low self-discharge rate, consumers can enjoy the convenience of their watches operating for several years without needing to replace the battery.

2. Calculators

Calculators often rely on panasonic cr1220 3v batteries to maintain their operation over extended periods. The consistent voltage output of the CR1220 ensures that calculators can perform accurate computations without interruptions. Given that calculators are frequently used in educational and professional settings, the reliability of the CR1220 battery is crucial for continuous performance.

3. Keyless Entry Systems

Keyless entry systems for cars and buildings benefit greatly from the use of CR1220 batteries. For these devices to send messages across long distances, a stable power supply is necessary. The CR1220 provides the necessary power to ensure that keyless entry systems function reliably, enhancing security and convenience for users. Moreover, the battery's wide working temperature range ensures functionality in a range of ambient conditions.

4. Medical Devices (e.g., Glucose Monitors)

Medical devices, such as glucose monitors, require highly reliable power sources to ensure patient safety and accurate readings. The CR1220 battery's stable voltage and long shelf life make it an excellent choice for such critical applications. In glucose monitors, the battery powers the device's electronics, ensuring accurate and timely blood sugar readings, which are vital for diabetes management.

5. Fitness Trackers

Fitness trackers are another popular application for the CR1220 battery. These wearable devices require a compact and lightweight power source to maintain their slim and ergonomic designs. With its low profile, the CR1220 has the power to track multiple fitness indicators, including steps taken, heart rate, and calories burned. The battery's long life and reliability ensure that fitness enthusiasts can rely on their trackers for extended periods without frequent recharging or battery replacements.

6. Controls that are remote

Controls that are remote Remote controllers for televisions, music systems, and other equipment commonly require CR1220 batteries. These remotes require a small and reliable power source to send infrared signals to the devices they control. The CR1220 battery's stable voltage ensures that remote controls function effectively over long distances and through numerous button presses. Additionally, the battery's low self-discharge rate means that remote controls can remain functional for years without the need for frequent battery replacements.

Equivalent Batteries to CR1220

Comparison: CR1220 vs. BR1220

The BR1220 is another 3V lithium coin cell battery, similar in size to the CR1220. They are ideal for diverse applications, nevertheless, due to some significant variances in their performance and attributes.

Chemical Composition

● CR1220: Uses lithium manganese dioxide (Li-MnO2) chemistry.

● BR1220: Utilizes lithium poly-carbon monofluoride (Li-(CF)x) chemistry.

The different chemistries affect their performance characteristics, especially regarding temperature stability and self-discharge rates.

Voltage and Capacity

● CR1220: Nominal voltage of 3V and typical capacity of 35mAh.

● BR1220: Nominal voltage of 3V and typical capacity of 30mAh.

The nominal voltage of both batteries is the same, however the batteries cr1220 3v usually has a little larger capacity.

Temperature Stability

● CR1220: Operates within a temperature range of -20°C to +70°C.

● BR1220: Offers better performance at extreme temperatures, with an operating range of -30°C to +85°C.

The BR1220 is appropriate for applications exposed to harsh environments because to its broader temperature range.

Discharge Characteristics

● CR1220: Provides a more stable discharge voltage, making it suitable for applications requiring consistent performance.

● BR1220: Known for its flat discharge curve, making it ideal for precision devices such as medical equipment.

Shelf Life and Self-Discharge

● CR1220: Has a lower self-discharge rate (~1% per year), resulting in a longer shelf life.

● BR1220: Typically has a slightly higher self-discharge rate but is still low compared to other battery types.

Applications

● CR1220: Suitable for a wide range of general-purpose uses, such as keyless entry systems, calculators, and watches.

● BR1220: Preferred for applications requiring higher temperature stability and precise voltage, such as medical devices and specialized instruments.

Detailed Comparison Table

Comparing: CR1216, CR1220, and CR1225 batteries

Common Features

● Type: Lithium Coin Battery

● Nominal Voltage: 3V

● Diameter: 12mm

● Shape: Cylindrical

Key Differences and Considerations

Height and Capacity:

 ● CR1216: With a height of 1.6mm and a capacity of 25mAh, it is suitable for devices that need minimal power.

 ● CR1220: With a height of 2.0mm and a capacity of 35mAh, it strikes a balance between size and power, making it versatile for a wide range of devices.

 ● CR1225: With a height of 2.5mm and a capacity of 50mAh, it provides the most power, ideal for devices requiring longer battery life.

Weight and Lithium Content:

 ● The CR1216 is the lightest and contains the least lithium, making it the safest for applications where minimal battery size and weight are crucial.

 ● The CR1220 offers a moderate weight and lithium content, balancing between capacity and safety.

 ● The CR1225, being the heaviest and containing the most lithium, offers the highest capacity but should be handled with care due to the higher lithium content.

Application Suitability:

 ● CR1216: Best for very low-power devices due to its smaller size and lower capacity.

 ● CR1220: Suitable for a variety of devices requiring moderate power and a balance between size and capacity.

 ● CR1225: Ideal for devices that require more power and longer usage periods, despite its slightly larger size.

Selecting the appropriate battery-CR1216, CR1220, or CR1225-depends on the specific power requirements, size constraints, and intended use of your electronic device. Each battery type offers distinct advantages, whether it's the compact and lightweight design of the CR1216, the balanced attributes of the CR1220, or the high capacity of the CR1225. Understanding these differences will help you make an informed choice, ensuring optimal performance and longevity for your devices.

Manufacturer of CR1220 Lithium Coin Battery

The industrial components and electronic device segment of Panasonic Corporation of North America is known as Panasonic Industrial Devices Sales Company of America. This segment provides essential parts that power millions of everyday household appliances, consumer electronics, computers, communications, and commercial and healthcare equipment.

The excellent research and development facilities, global manufacturing capabilities, and extensive selection of superior industrial goods have made Panasonic Industrial Devices Sales Company of America a well-known brand. The top original equipment manufacturers (OEMs) of high-tech electronic products in the world choose them as their preferred vendor because of their dedication to providing excellent customer service.

Panasonic has a wide range of components, from the tiniest resistor to the most sophisticated wireless communication modules. By choosing Panasonic, you're choosing the highest-quality parts the market has to offer rather than just a reputable brand.

Conclusion

The CR1220 lithium coin battery is a versatile and reliable power source for various low-power electronic devices. Its datasheet specifications highlight its suitability for applications requiring stable voltage, compact size, and long shelf life. When selecting an equivalent, options like the DL1220, ECR1220, LITH-35, and KCR1220 offer similar performance and compatibility.

You should compare the CR1220 and BR1220 with the particular requirements of your application in mind. While the CR1220 excels in general-purpose use, the BR1220 offers advantages in high-temperature stability and precision applications. If you are aware of these differences, choosing the best battery for your needs will be simpler.

The CR1220 remains a popular choice due to its balance of performance, size, and reliability. Whether you are replacing an existing battery or selecting one for a new device, the CR1220 and its equivalents provide dependable power solutions for a wide range of applications. This ensures that your electronic devices, whether they are everyday consumer products or specialized instruments, will operate efficiently and reliably. Thus, the CR1220 continues to be a preferred option for manufacturers and consumers alike, maintaining its relevance and utility in the rapidly evolving world of electronic devices.

Common Queries Answered

1. What are the uses of a CR1220 battery?

Small electronic gadgets that need a compact and dependable power source, like watches, calculators, fitness appliances, medical devices, keyless entry systems, and other devices, frequently employ CR1220 batteries.

2. What is the difference between CR1220 and CR1216 batteries?

The primary difference between CR1220 and CR1216 batteries is their thickness. CR1220 batteries are 2.0mm thick, whereas CR1216 batteries are 1.6mm thick. Both have the same diameter of 12mm and operate at 3V.

3. How do I replace a CR1220 battery?

To replace a CR1220 battery, carefully open the battery compartment of the device, remove the old battery, and insert the new CR1220 battery with the correct polarity (positive side up). Ensure the battery is properly seated and secure the compartment cover.

4. How long does a CR1220 battery last?

The duration of a CR1220 battery depends on the device's power usage and frequency of use. In devices with minimal power consumption, such as watches, it typically lasts one to two years.

5. What is the voltage of a CR1220 battery?

The nominal voltage of a CR1220 battery is 3 volts.

6. What devices use CR1220 batteries?

Devices that use CR1220 batteries include wristwatches, fitness trackers, small electronic toys, remote controls, medical devices like glucose meters, and keyless entry systems.

7. How can I extend the life of my CR1220 battery?

To extend the life of your CR1220 battery, store it in a cool, dry place, avoid exposing it to extreme temperatures, and ensure that the device it powers is turned off when not in use. Regularly cleaning the battery contacts can also help maintain optimal performance.

8. Where can I buy CR1220 batteries?

CR1220 batteries can be purchased at electronic stores, supermarkets, pharmacies, and online retailers such as Amazon, eBay, and battery-specific websites.

9. What is the proper way to dispose of a CR1220 battery?

CR1220 batteries should be recycled properly to avoid environmental harm. Used batteries are accepted at many recycling facilities and electrical stores. Get in touch with your local waste management organization to learn where and how to recycle batteries.

10. Can a CR1220 battery replace other button cell batteries?

If two button cell batteries are the same voltage and size, they can be swapped out for a CR1220 battery. But before changing a battery model, make sure to always verify compatibility by looking up the device's specifications.