CR2032 vs CR2450：is CR2032 same as CR2450

Understanding the fundamentals of batteries is crucial for optimizing the performance of electronic devices. Among these batteries, button batteries, also known as coin cell batteries, play a pivotal role in powering various gadgets, from watches to remote controls. They come in different sizes and voltages, each tailored to specific device requirements and identified by alphanumeric codes like CR2032 and CR2450. Let's delve into the differences between CR2032 and CR2450 batteries, their applications, and key considerations for choosing the right one for your needs.

 

 

Is CR2032 same as CR2450, are they interchangeable?

The CR2032 and CR2450 batteries are not the same, nor are they interchangeable.

 

While they both share the same voltage and serve similar purposes, such as powering small electronic devices, they differ significantly in size and capacity. The CR2450 is larger in diameter (24mm) and thicker (5mm) compared to the CR2032 (20mm diameter and 3.2mm thickness). Additionally, CR2450 batteries typically have a higher energy storage capacity than CR2032 batteries.

 

Due to these differences, attempting to interchange them may lead to compatibility issues, ill-fitting, and reduced battery life. It's essential to adhere to the manufacturer's specifications and use the correct battery size designated for the device to ensure optimal performance and safety.

 

What is CR2032? 

A CR2032 battery is a non-rechargeable lithium coin or "button" cell battery with a diameter of 20mm and a thickness of 3.2mm. It operates at a voltage of 3 volts and typically has a capacity of up to 240mAh, depending on the manufacturer.

Widely utilized in various commercial applications, including automobile key fobs, motherboards, security system panels, and weapons sighting systems, the CR2032 battery can be fitted with connecting tabs for installation in practically any position. Its manganese dioxide chemistry ensures stable and consistent performance throughout its lifecycle. Despite its moderate capacity, the CR2032 battery is renowned for its versatility and widespread use across a range of small electronic devices.

 

1) CR2032 Batteries Dimensions and Size

2) CR2032 Specifications

 

Attribute	Specification
Technology	Lithium
Shape	Circular
Voltage	3V
Diameter	20 mm
Height	3.2 mm
Weight	3.1 g
Shelf Life	10 years
Capacity	200-250mAh
Type	Non-rechargeable

 

3) CR2032 Equivalents

The CR2025 battery, also a lithium coin cell variant, serves identical purposes and enjoys similar demand as the CR2032. However, its compact size renders it particularly suitable for applications with constrained mounting space.

 

• Product Code: CR-2025EL
• Size: CR2025
• Technology: Lithium
• Voltage: 3V
• Diameter: 20 mm
• Weight: 2.6 g
• Shelf Life: 10 years

 

The CR2025 battery stands out as the preferred choice for high-end headphones or miniature remote controls owing to its diminutive dimensions, which cater to the need for maximum device compactness.

 

Consumers often prioritize shelf life when purchasing button batteries. A prolonged shelf life, such as the 10 years offered by the CR2025, ensures extended storage capability, proving advantageous for users and retailers alike, especially when buying in bulk.

 

4) CR2032 Application & Uses

 

Memory Backup: CR2032 batteries are commonly used in devices requiring memory backup, such as computer motherboards and electronic devices that store user settings.

 

Digital Watches: The compact size and reliable power supply make CR2032 batteries ideal for wristwatches, ensuring accurate timekeeping.

 

Car Keys: Many car remote keys utilize CR2032 batteries to provide consistent power for remote entry and start-stop functions, ensuring reliable operation regardless of weather conditions.

 

Laser Pens: CR2032 batteries power laser pens, providing a stable energy source for consistent performance.

 

Fitness Gadgets: Devices like heart-rate monitors, pedometers, and wrist-based activity trackers often rely on CR2032 batteries for their power needs due to their low power consumption and compact size.

 

Medical Devices: CR2032 batteries are used in various medical devices such as tensiometers and clinical thermometers, providing long-lasting power for continuous operation.

 

5) Advantages of CR2032 Batteries

 

• Compact Size: Its small form factor with a diameter of 20mm and a thickness of 3.2mm makes it suitable for use in various small electronic devices where space is limited.
• Versatility: The CR2032 battery is widely used across a range of applications, including watches, calculators, remote controls, medical devices, computer motherboards, fitness trackers, and smart cards, demonstrating its versatility.
• Stable Voltage Output: With a nominal voltage of 3 volts, the CR2032 battery provides a stable and consistent power supply to electronic devices, ensuring reliable performance.
• Moderate Capacity: While offering a moderate capacity of up to 240mAh, the CR2032 battery is sufficient for devices with low to moderate power requirements, making it a suitable choice for everyday electronics.
• Long Shelf Life: The CR2032 battery typically has a long shelf life, retaining its capacity and performance even after prolonged storage, ensuring reliability when needed.
• Easy Installation: With its standard button cell design, the CR2032 battery is easy to install and replace in compatible devices, requiring no special tools or expertise.
• Environmentally Friendly: Many CR2032 batteries are manufactured with environmentally friendly materials and are free from harmful substances like mercury, contributing to sustainability efforts.

 

What is CR2450?

The CR2450 battery, a member of the lithium coin cell family, is a non-rechargeable button cell battery characterized by its larger dimensions compared to the CR2032. With a diameter of 24mm and a height of 5.0mm, the CR2450 offers a higher nominal voltage and energy density, making it suitable for higher-power applications. It typically operates at 3 volts and boasts a capacity ranging from 600-700mAh, providing long-lasting and stable voltage output characteristics.

Commonly used in devices such as watches, calculators, key fobs, medical devices, fitness trackers, and remote controls, the CR2450 battery stands out for its environmentally friendly composition with zero mercury content and its exceptional shelf life, retaining 90% of its initial capacity even after 10 years of use.

 

1) CR2450 Batteries Dimensions and Size

 

2) CR2450 Specifications

 

Attribute	Specification
Technology	Lithium
Shape	Circular
Voltage	3V
Diameter	24 mm
Height	5 mm
Weight	6.3 g
Shelf Life	10 years
Capacity	600-700mAh
Operating Temperature (Max)	85°C
Operating Temperature (Min)	-40°C
Type	Non-rechargeable

 

3) CR2450 Equivalents

The CR2450 battery serves as a vital power source for various electronic devices, offering a stable voltage of 3 volts. While it is not directly compatible with other battery types, there exist alternative models with similar specifications. For instance, the BR2450, a cadmium-mercury-free lithium battery, shares a comparable capacity to the CR2450, albeit with a slightly higher voltage. This environmentally-friendly option minimizes ecological impact. However, users should verify device compatibility due to voltage differences that may affect device performance.

 

Moreover, several common equivalent models of the CR2450 exist, each featuring a nominal voltage of 3V and akin battery specifications:

 

• DL2450
• EC2450
• KL2450
• LM2450

 

These alternatives offer flexibility in selecting the appropriate battery for specific device requirements while ensuring reliable performance and environmental responsibility.

 

4) CR2450 Batteries Application & Uses

 

Calculators: CR2450 batteries are commonly found in calculators due to their long-lasting power and suitability for low-power electronic devices.

 

Digital Watches: Similar to CR2032 batteries, CR2450 batteries are used in digital watches for their reliable power supply and extended battery life.

 

Laser Pens: CR2450 batteries power laser pens, offering sufficient energy output for consistent performance in various applications.

 

Vehicle Keys: Some car remote keys utilize CR2450 batteries, providing reliable power for keyless entry and other functions.

 

Medical Devices: CR2450 batteries are employed in medical devices such as clinical thermometers, ensuring continuous power for accurate measurements.

 

Workout Equipment: CR2450 batteries are used in various workout equipment for their long-lasting power, supporting uninterrupted operation during exercise sessions.

 

5) Package

 CR2450 package

 

6) Advantages of CR2450 Batteries

 

• High Energy Capacity: The CR2450 has a larger capacity compared to many other button cell batteries, making it suitable for devices with higher power demands.
• Extended Lifespan: Its higher capacity allows it to power devices for longer durations before needing replacement, reducing the frequency of battery changes.
• Stable Voltage Output: Like the CR2032, the CR2450 provides a consistent 3-volt output, ensuring reliable performance of electronic devices.
• Compatibility: While larger in size, the CR2450 is still compatible with a wide range of devices that require its specifications.
• Diverse Applications: Used in various devices including key fobs, digital scales, medical equipment, and remote controls, offering versatility in applications.
• Environmental Friendliness: Many CR2450 variants are manufactured without mercury, contributing to environmental sustainability efforts.
• Long Shelf Life: Retains capacity and performance even after prolonged storage, ensuring reliability when not in use.

 

CR2032 vs CR2450：What are Differences

CR2032 and CR2450 are two common types of lithium batteries. While both provide 3V voltage, they differ significantly in size, capacity, and applications.

Attribute	CR2032	CR2450
Diameter	20 mm	24 mm
Height	3.2 mm	5 mm
Weight	3.1 g	6.3 g
Capacity	200-250mAh	600-700mAh
Operating Temperature (Max)	N/A	85°C
Operating Temperature (Min)	N/A	-40°C
Applications	Memory backup, digital watches, car keys, laser pens, fitness gadgets, medical devices	Calculators, digital watches, laser pens, vehicle keys, medical devices, workout equipment
Equivalents	CR2025	DL2450
Shelf Life	10 years	10 years
Voltage	3V	3V
Type	Non-rechargeable	Non-rechargeable

 

 

Here are the Differences:

 

1. Size:

 

• CR2450 has a diameter of 24 millimeters and a thickness of 5.0 millimeters, making it larger than CR2032.
• CR2032 has a diameter of 20 millimeters and a thickness of 3.2 millimeters, making it smaller than CR2450.

 

2. Capacity:

 

Due to its larger size, CR2450 typically has a higher capacity than CR2032, providing more prolonged power supply.

Conversely, CR2032 has a lower capacity due to its smaller size.

 

3. Applications:

 

• CR2450 is commonly used in devices requiring more power and longer runtime, such as keys, digital scales, medical devices, and certain types of remote controls.
• CR2032 is suitable for smaller-sized, low-power devices like watches, calculators, small sensors, and computer memory backups.

 

4. Interchangeability:

 

While both batteries share the same voltage and chemistry, they are not always interchangeable due to differences in size and capacity.

CR2032 batteries may fit into devices designed for CR2450 batteries, but they may not provide sufficient power or runtime. Conversely, CR2450 batteries may not fit into devices designed for CR2032 batteries due to their larger size.

 

How to Choose between CR2032 vs CR2450

Choosing between CR2032 and CR2450 batteries depends on several factors:

 

Space Constraints: If your device has limited space for a battery, CR2032 might be the better choice due to its smaller size. However, if space isn't an issue or if your device is designed for a larger battery, CR2450 might be more suitable.

 

Power Requirements: Consider the power demands of your device. CR2450 batteries typically have a higher capacity, making them suitable for devices that require more power or longer runtime. If your device has lower power requirements, CR2032 may suffice.

 

Compatibility: Check the specifications and requirements of your device. Ensure that the chosen battery fits properly and meets the voltage and capacity needs of your device. While both batteries have the same voltage, their size and capacity differ, so they may not always be interchangeable.

 

Application: Consider the intended use of your device. CR2032 is commonly used in smaller, low-power devices like watches and calculators, while CR2450 is often found in devices requiring more power, such as key fobs and medical devices.

 

Availability and Cost: Assess the availability and cost of both battery types. While CR2032 batteries are more common and may be easier to find, CR2450 batteries offer higher capacity but may be less readily available and potentially more expensive.

 

How Do CR2450 Batteries Differ Across Various Brands?

Across various brands, CR2450 batteries differ in several aspects including capacity, weight, operating temperature range, shelf life, and self-discharge rate. Despite sharing the same nominal voltage of 3V and shape, each brand offers unique features tailored to specific consumer needs.

 

Panasonic CR2450: Known for its long shelf life of over 10 years and low self-discharge rate, the Panasonic CR2450 battery boasts a capacity of 620mAh and operates within a temperature range of -22°F (-30°C) to 140°F (+60°C). Its constant standard drain is 0.42 mA.

 

Sony CR2450: The Sony CR2450 battery offers a nominal capacity of 610mAh and high leakage protection. It operates within a temperature range of -22°F (-30°C) to 158°F (70°C) and weighs 6.6 grams. The constant standard drain is 0.2mA.

 

Energizer CR2450: With a nominal capacity of 620mAh, the Energizer CR2450 battery features a shelf life of over 10 years and can sustain a drain of 9.0 mA for 2 seconds per day. It operates within a temperature range of 22°F (-30°C) to 140°F (60°C) and typically weighs around 6.8 grams.

 

Varta CR2450: Varta CR2450 batteries offer a capacity of 620mAh and weigh approximately 6.2 grams. They operate within a temperature range of -4°F (-20°C) to 158°F (70°C) and have a maximum continuous drain current of ~0.5 mA down to 2 volts.

 

Renata CR2450: Renata offers two models of CR2450 batteries, CR2450N and CR2450N-MFR, with different capacities and drain currents. The CR2450N has a typical capacity of 540mAh, while the CR2450N-MFR has a typical capacity of 580mAh. Both models operate within a temperature range of -40°F (-40°C) to 185°F (85°C) and have a self-discharge rate of less than 1% when stored at room temperature.

 

Basics of Battery You Should Know

Understanding the basics of batteries is essential for effectively using electronic devices. Button batteries, also known as coin cell batteries, play a significant role in powering various gadgets. These small, disc-shaped batteries are commonly found in watches, calculators, remote controls, and other electronics.

 

#1 What Are Button Batteries?

Button batteries, also known as coin cell batteries, are small disc-shaped batteries commonly used in watches, calculators, remote controls, and various other electronics. They feature a thin sheet of plastic or metal foil covering the bottom and two metal terminals on top. These batteries come in different sizes and voltages, with each type suited for specific devices based on their energy requirements. Besides their size and shape, button batteries are typically identified by alphanumeric codes, such as CR2032 and CR2450, indicating their dimensions and chemical composition.

 

#2 What is a CR Battery?

CR batteries follow the International Electrotechnical Commission (IEC) naming system, where each letter and number represents specific characteristics:

 

• "C" denotes the chemical composition, often Lithium Manganese Dioxide.
• "R" signifies a round-shaped battery with properties indicated by the preceding letter.

 

The numbers indicate the diameter and thickness of the battery, such as 24mm x 5.0mm for CR2450.

 

#3 How to Store Battery (Button Battery Life)

The service life of button batteries, like CR2450 and CR2032, can be influenced by various factors:

 

• Environmental Conditions: Extreme temperatures or high humidity can shorten battery life. Storing batteries in a dry, cool place without direct sunlight is recommended.
• Proper Use: Removing batteries from unused devices and selecting appropriate load currents can extend their lifespan.
• Storage Methods: Regularly checking the voltage of stored batteries and ensuring they remain within normal range is crucial for maintaining their effectiveness.
• Voltage Monitoring: As button batteries approach the end of their lifespan, their output voltage decreases. Signs of low power in devices may indicate the need for battery replacement.

 

It's important to adhere to manufacturer instructions when using small electronic devices to prevent safety issues like short circuits or over-discharging batteries.

 

Conclusion

In conclusion, CR2032 and CR2450 batteries are both indispensable components in the realm of small electronic devices. While they share similarities in voltage and chemical composition, their differences in size, capacity, and applications set them apart. CR2032 batteries, with their compact size and moderate capacity, are well-suited for low-power devices like watches and calculators. On the other hand, CR2450 batteries, with their larger size and higher capacity, excel in applications requiring more power and longer runtime, such as key fobs and medical devices. Understanding these distinctions and considering factors like device requirements and compatibility are essential for selecting the optimal battery for your electronic devices.