CR2450 vs CR2032 Review

What Is a CR2450 Battery?

The CR2450 is a lithium button cell battery that is commonly used to power small electronic devices, including watches. The 2450 in the battery's name stands for its 24.5mm diameter. Additionally, the battery has a thickness of 5mm, making it one of the thickest batteries you can use to power small electronic circuits. Like most batteries in the CR family, the CR2450 uses lithium chemistry to supply a nominal 3 volts over a long time.

What Is a CR2032 Battery?

The CR2032 is a lithium coin/button cell battery with a 20mm diameter and a smaller 3.2mm thickness. The battery's low discharge rate makes it an ideal power source for small electronic devices. Common uses include powering calculators and watches. The battery supplies a nominal voltage of 3 volts with outstanding reliability.

CR2450 vs. CR2032 Batteries: Technical Specifications

The CR2450 is a bigger battery compared to the CR2032. Consequently, it has a higher capacity that allows it to last longer. However, their longevity depends on application and frequency of use.

CR2450 vs CR2032: Differences

Size

The first and more noticeable difference between the two is size. CR2450 has a diameter of 24.5mm and a thickness of 5mm. The CR2032 has a diameter of 20mm and a thickness of 3.2mm.

Capacity

Due to its larger size, the CR2450 has a higher capacity than the CR2032. The CR2450 has a capacity of around 620 mAh, while the CR2032 has a capacity of approximately 220 to 240 mAh.

Temperature Range

The CR2032 has a broader range of 90C, whereas the CR2450 has a 70C range. The CR2032 battery's temperature range is -20C to +85C, while the CR2450 temperature range is -20C to +50C. The CR2032 is more versatile and works well over a broader range of temperatures.

Weight

The CR2450 is bigger with a weight that doubles the CR2032's weight. It weighs 6.9 grams, whereas the CR2032 weighs 3 grams.

CR2450 vs. CR2032: Applications

The CR2450 and CR2032 have similar applications for powering electronic devices. Since the CR2450 has higher capacity, it is generally used in devices needing more power over a long period. Common applications include powering car key fobs and medical devices. The CR2032 powers smaller electronic devices requiring stable power, such as calculators and small electronic toys.

CR2450 vs. CR2032: Similarities

Both batteries come from the lithium coin cell family. Both have a nominal voltage of 3 volts and very low discharge rates, retaining 90% capacity after ten years. Both last nearly a year in power-demanding applications and 3 to 4 years in less draining applications. Both are easy to install and replace.

CR2450 Equivalents

• Duracell DL2450
• ECR2450
• BR2450
• KCR2450
• LIR2450

CR2032 Equivalents

• ECR2032
• BR2032
• DL2032
• KCR2032
• LIR2032

Are CR2450 and CR2032 Interchangeable?

Your choice of battery depends on the application and battery compartment size. If you need longer-lasting battery, choose CR2450. For small devices like watches, use CR2032. The battery compartment dictates which battery you should buy.

FAQs

Can you use CR2450 in place of CR2032?

It depends on the battery compartment. If your device has a fixed compartment, that will dictate the battery to install. You can use either if your custom battery compartment is adjustable according to battery size.

Are CR2450 durable batteries?

CR2450 batteries are very durable and last more than a year in power-intensive devices and more than three years in non-intensive applications. They have a long shelf life.

What voltage do we consider CR2032 and CR2450 dead?

Most lithium coin cell batteries are considered dead when nominal voltages drop below 2.8 to 2.7 volts. Once flat, consider replacing them as they are non-rechargeable.

Final Remarks

The CR2032 and CR2450 batteries are durable and provide reliable power for small devices like calculators and watches. However, they are not equivalents and each serves specific purposes. Ensure the battery you use is what the manufacturer recommends.