Compare CR2450 vs CR2032 Lithium Battery: Uses, Voltages and Replacements

26 September 2024 702

Understanding CR2450 and CR2032 Batteries

CR2450 vs CR2032: Replacements

CR2450 vs CR2032: Applications

Detailed Comparison of CR2450 vs CR2032

Choosing the right battery for your device ensures optimal performance and longevity. Batteries power everything from watches to medical devices, making the selection crucial. Among the popular options, CR2450 and CR2032 stand out as reliable coin cell batteries. The CR2450 battery offers a higher capacity, making it suitable for high-drain devices requiring prolonged usage. In contrast, the CR2032 battery fits lightweight electronics with its compact size. Therefore, an in-depth understanding of the characteristic differences between the CR2450 batteries and the CR2032 batteries will help you accurately match the battery model that best suits your specific needs.

Understanding CR2450 and CR2032 Batteries

Feature	CR2032	CR2450
Voltage	3V	3V
Self-discharge	Very low self-discharge; long shelf life: up to 10 years	Very low self-discharge; long shelf life of up to 10 years
Applications	A full lineup for use in a wide variety of applications	A full lineup for use in a wide variety of applications
Mercury	No mercury added	No mercury added
Leak Protection	High leak protection	High leak protection
Temperature Range	Useful in a wide range of temperatures (-30°C to +60°C)	Usable in a wide range of temperatures (-30°C to +60°C)
Weight-to-Power Ratio	The very high weight-to-power ratio	The very high weight-to-power ratio

What is a CR2450 Battery?

CR2450, also known as 2450, is a small and exquisite button-type lithium manganese dioxide battery. CR2450 has a standard 3.0V rated voltage, can provide stable power support, and its rated capacity exceeds 520mAh, ensuring long-term endurance. CR2450 lithium batteries are widely used in various low-power electronic devices, including car keys, remote controls, electronic clocks, etc. These devices usually require a continuous and stable power supply to ensure normal operation, and CR2450 lithium batteries have successfully met these needs with their stable performance and long-lasting endurance, so they are also favored by the majority of users.

CR2450 Size and Dimensions

The CR2450 3v lithium battery measures 24.5 mm in diameter and 5.0 mm in thickness. This larger size allows the battery to store more energy, which results in longer usage duration. Because of its increased size, the CR2450 3v battery is especially suited to equipment that has a more spacious interior, ensuring an adequate supply of energy and stable operation of the equipment.

CR2450 Voltage and Capacity

The battery CR2450 offers a nominal capacity of 620 mAh. This high capacity ensures efficiency and longevity in high-drain devices. The battery provides a stable 3V voltage at the beginning of power supply, and the voltage will slowly decrease as the power is gradually consumed.

CR2450 Common Applications

Devices requiring long-lasting power often use the CR2450 3 volt battery. These include medical devices, remote controls, and other electronics that demand consistent performance over time. The design of this battery fully considers the importance of reliability and perfectly supports those application scenarios with extremely high requirements for power supply stability.

What is a CR2032 Battery?

The CR2032 battery, often referred to simply as 2032, is a small, button-shaped lithium battery that is used in a wide variety of electronic devices due to its small size and long life. Operating at 3 volts, the CR2032 battery provides reliable performance over long periods of time, making it a popular choice for devices that require a long-lasting, stable power source. Known for its stability and ability to operate in extreme temperatures, the CR2032 battery remains a mainstay in the world of consumer electronics.

CR2032 Size and Dimensions

The CR2032 3v lithium battery features a diameter of 20 mm and a thickness of 3.2 mm. This compact size makes the battery ideal for small electronic gadgets. The smaller dimensions allow the CR2032 to fit into devices with limited space.

CR2032 Voltage and Capacity

The battery CR2032 has a nominal capacity of 220 mAh. Although lower than the CR2450, this capacity suits devices with moderate power needs. The battery also provides a 3-volt output, ensuring compatibility with various electronics.

CR2032 Common Applications

With its compact design and excellent performance, 3v CR2032 batteries are an ideal power source for lightweight electronic devices such as watches, calculators, and small remote controls. Its efficient energy conversion capability ensures the stability and reliability of these devices in daily use.

CR2450 vs CR2032: Replacements

CR2450 Battery Equivalent

BR2450

This is a cadmium-mercury free lithium battery format with a capacity very similar to the CR2450, but the voltage may be slightly higher. Since it is a cadmium-mercury free battery, the impact on the environment is relatively small. However, before using BR2450, you should confirm whether the device supports this alternative type, as the difference in voltage may have a slight impact on the device.

CR2032 Battery Equivalent

CR2025

Although the voltage of CR2032 and CR2025 batteries is the same, there is a difference in their size. The diameter of CR2025 battery is the same as CR2032, both are 20mm, but its thickness is thinner, 2.5mm, while CR2032 is 3.2mm. Therefore, when using CR2025 as a replacement, you need to consider whether the battery compartment of the device can accommodate this thinner battery and whether the battery can make good contact with the circuit board of the device. In addition, since the capacity of CR2025 is generally smaller than CR2032, its service life may be relatively shorter.

CR2016

This battery also has a diameter of 20mm, but is thinner at only 1.6mm. Although stacking two CR2016 batteries may reach the thickness of CR2032, it is not recommended as it may affect the stability and performance of the battery. However, in some specific cases, if the size of the battery compartment of the device allows and the requirements for battery life are not particularly high, CR2016 can be used as a temporary replacement.

CR2450 vs CR2032: Applications

Device Compatibility

Electronics and Gadgets

CR2450 batteries excel in devices that demand higher energy storage. Devices like digital cameras and high-performance remote controls benefit from the larger capacity of the CR2450 coin cell battery. The 620 mAh capacity ensures prolonged usage, reducing the need for frequent replacements. The CR2032, with its compact size, fits perfectly in smaller gadgets. Devices such as calculators and small LED lights utilize the 220 mAh capacity effectively. The thinner profile of the CR2032 allows it to fit into tight spaces, making it ideal for lightweight electronics.

Medical Devices

Medical devices often require reliable and long-lasting power sources. The CR2450 lithium battery provides a stable power supply for devices like glucose meters and heart rate monitors. The higher capacity ensures consistent performance over extended periods. The CR2032 lithium battery suits devices with moderate power needs. Devices such as hearing aids and small medical sensors use the CR2032 effectively. The compact design of the CR2032 allows it to integrate seamlessly into these applications.

Performance in Various Conditions

Temperature Sensitivity

Both CR2450 and CR2032 batteries operate efficiently at room temperature. However, the CR2450's larger size offers better performance in colder environments. The higher capacity allows the CR2450 to maintain voltage stability under varying conditions. The CR2032 performs well in standard conditions but may experience reduced efficiency in extreme temperatures. The smaller size limits its ability to handle significant temperature fluctuations.

Longevity and Shelf Life

The CR2450 3 volt battery boasts an impressive shelf life of up to 60 months. The longer shelf life makes it suitable for stocking up without concerns about expiration. The higher capacity contributes to its longevity in high-drain applications. The CR2032 also offers a shelf life of up to 60 months. The CR2032's design supports everyday use in devices with lower power demands. Both batteries provide reliable performance, but the CR2450's larger capacity ensures extended usage in demanding conditions.

Detailed Comparison of CR2450 vs CR2032

CR2450 vs CR2032 Interchangeability

Physical Compatibility

The physical dimensions of CR2450 and CR2032 batteries differ significantly. The CR2450 measures 24.5 mm in diameter and 5.0 mm in thickness. The CR2032, on the other hand, has a diameter of 20 mm and a thickness of 3.2 mm. These size differences impact their interchangeability. Devices designed for CR2450 batteries typically have larger compartments. Using a CR2032 in such devices may result in poor contact or movement within the compartment. This can lead to unreliable performance or even damage to the device.

Electrical Compatibility

Both CR2450 and CR2032 batteries provide a nominal voltage of 3 volts. However, the capacity varies greatly between the two. The CR2450 offers a capacity of 620 mAh, while the CR2032 provides 220 mAh. Therefore, for devices that require a larger battery capacity for optimal performance, CR2450 is undoubtedly a more suitable choice. If you try to replace CR2450 with CR2032, it may cause the battery life of the device to be significantly shortened, thereby increasing the frequency of battery replacement. In terms of electrical compatibility, it depends entirely on the power demand characteristics of the device itself. Therefore, when considering battery interchangeability, users must take the above factors into consideration to ensure the normal operation and performance of the device.

CR2450 vs CR2032 Cost and Availability

Price Differences

The price of CR2450 and CR2032 batteries can vary based on brand and retailer. Generally, CR2450 batteries cost more due to their larger size and higher capacity. The increased capacity justifies the higher price for devices that require longer-lasting power. CR2032 batteries, being smaller and having lower capacity, are often more affordable. Consumers should weigh the cost against the performance needs of their devices.

Market Availability

Both CR2450 and CR2032 batteries are widely available in the market. Retailers and online stores stock these batteries due to their popularity in various electronic devices. The CR2032 tends to have broader availability because of its use in many small gadgets. The CR2450, while also readily available, may be stocked in smaller quantities. Consumers should check availability at local stores or online platforms to ensure they can purchase the required battery type.

When comparing CR2032 and CR2450, we can clearly see the key differences and similarities between them. With its larger battery capacity, CR2450 is an ideal choice for high-power consumption devices and can meet the needs of long-term operation. With its moderate capacity and compact design, CR2032 is very suitable for small and low-power electronic devices. In terms of durability and reliability, CR2450 stands out with its excellent energy storage capacity, especially for devices that run for a long time under harsh conditions. Therefore, when choosing, if you pursue long-term stable power supply, CR2450 is a wise choice; if you focus on the portability and compact design of the device, CR2032 is the best choice. In short, when deciding which battery to use, be sure to fully consider the specific specifications and power requirements of the device to ensure the best device function and performance.

Frequently Asked Questions

Will a CR2032 work for CR2016?

If your device uses a single 2016 battery, the thicker 2032 will often not fit in the 2016 slot. If your device requires two CR2016 batteries, the CR2032 is an ideal replacement, saving space and extending battery life.

What battery is equivalent to CR2450?

Batteries similar to the CR2450 include the BR2450, DL2450, and ECR2450, all of which provide the same 3-volt output and exhibit similar performance characteristics.

Which brands of CR2032 batteries are common choices in the market?

Common CR2032 battery brands on the market include Camelion 2032, 2032 Renata, 2032 Panasonic, and 2032 Maxell. These brands are widely praised for their high performance and reliability, and are suitable for a variety of electronic devices that require CR2032 batteries.

What are CR2450 batteries used for?

CR2450 batteries are commonly used in wearable devices, pedometers, medical devices, blood glucose monitors, digital thermometers, blood pressure monitors, home automation, smart devices, remote controls and smart sensors, etc.

Is CR2032 a lithium-ion battery?

No, a CR2032 battery is not a lithium-ion battery. Instead, it is a lithium primary battery (non-rechargeable), typically based on lithium manganese dioxide (LiMnO₂) chemistry.

Are CR2450 and CR2032 interchangeable?

Due to their physical sizes and capacities, CR2450 and CR2032 batteries cannot be interchanged. Because the CR2450 is both larger and thicker, it won’t fit in compartments designed for the CR2032. Even if it did fit, the increased capacity of the CR2450 wouldn’t provide any advantage if the device was optimized for the smaller battery. Conversely, using a CR2032 in a device designed for a CR2450 could lead to poor contact or insufficient power delivery.

What brands of CR2450 are there?

Some of the most sought-after brands for CR2450 batteries include Panasonic CR2450, Sony CR2450, Duracell CR2450, along with Renata CR2450, Camelion CR2450, and Maxell CR2450. These top-tier brands are renowned for delivering dependable performance and adhering to stringent quality standards.

How long do CR2032 lithium batteries last?

CR2032 lithium batteries generally have a lifespan of 3 to 5 years in devices with low power consumption and 1 to 2 years in those with moderate power consumption, while their shelf life can reach up to 10 years if stored correctly.

What battery can replace CR2450?

In most cases, the BR2450, DL2450, ECR2450, or CR2450N are the simplest and most reliable substitutes for the CR2450 battery. Always make sure that the replacement battery fits snugly in its compartment to prevent any power disruptions.

Is the BMW key battery CR2450 or CR2032?

BMW key fobs commonly use either CR2032 or CR2450 batteries, depending on the specific model. Generally, smaller models like the 1 and 3 Series often use the CR2032, while larger vehicles such as the 5 Series and X3 are more likely to require the CR2450. It's essential to verify the battery type before replacing it by checking the current battery inside the fob or consulting your car’s manual.

What are the brands of CR2032 battery?

When it comes to CR2032 battery brands, there are several reputable options to choose from. Among the most popular and trusted are Varta CR2032, Panasonic CR2032, Duracell CR2032, Maxell CR2032, and Sony CR2032. Each of these brands is known for producing high-quality batteries that meet or exceed industry standards, ensuring reliable performance and long-lasting power for your devices.

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Anderson Snape

Anderson Snape, born in 1972, completed his undergraduate studies at Loughborough University in the UK in 1993 and received a bachelor's degree in electrical engineering. In 1996, he furthered his studies and obtained a master's degree from Newcastle University. As a senior engineer in the field of integrated circuit testing, Anderson has been working in the chip testing industry for more than 20 years, accumulating profound professional experience and holding unique insights into the industry. He not only focuses on technical practice, but also actively engages in chip-related science popularization work. At the same time, he keeps up with the current hot topics in the semiconductor industry and has made important contributions to the progress and development of the industry.