CR2450 vs CR2032: Understanding the Differences and Applications of Button Batteries

CR2450 and CR2032 are both CR battery specifications. They are non-rechargeable button batteries. They are often compared to each other because they are similar. Can they be used as equivalents? No. They can't be used as substitutes because they're different sizes and have different capacities. This article explains the differences between CR2450 and CR2032, as well as other CR2450 models.

What is a CR battery?

Battery names follow the IEC naming system, where each letter and number represents: 

C stands for lithium manganese dioxide.

R after another letter means the battery is round and has the chemical properties of the first letter.

The numbers show the battery size. CR2450 means it is 24mm x 5.0mm.

CR2450

The CR2450 battery is more powerful than other button lithium batteries. The CR2450 battery is twice as powerful as an alkaline battery. This battery operates at 3V and has a capacity of 600-700mAh. It lasts a long time and keeps a stable voltage. CR2450 batteries are environmentally friendly because they don't contain mercury. CR2450 batteries last a long time. For example, Panasonic's CR2450 button battery still has 90% of its initial capacity after 10 years.

CR2032

The CR2032 button battery is common. It is round with a raised positive end, like a button. It is used in many small electronic devices, including calculators, watches, remote access systems, and smart cards. The "20" in CR2032 represents a diameter of 20mm, and the "32" indicates a height of 3.2mm

CR2450 vs. CR2032

Similarity

Note:

1. The CR2032 and CR2450 batteries have the same composition, but different lithium content. The CR2450 has more lithium than the CR2032, so it has a higher capacity.

2. Both CR2032 and CR2450 can last 8-10 years at room temperature. How long they last depends on how often you use them.

Difference

The CR2450 and CR2032 have different specifications.

1. The CR2450 battery is much larger than the CR2032, so it lasts longer. If you need more current or a stable power supply, use CR2450.

The CR2032 is smaller than the CR2450, making it suitable for products with tight space requirements and button-style designs. If your project needs to be small and doesn't need a lot of battery power, CR2032 is a better choice.

3. CR2032 is thinner and lighter than CR2450, making it better for small electronic devices. CR2450 is used in devices that need more energy and last longer.

Can CR2032 replace CR2450?

No, they are not the same. The CR2032 and CR2450 have the same voltage and chemical composition. The CR2032 and CR2450 are not the same size or capacity, so they can't be used together.

The battery compartment for any application has a default size. The CR2450 is larger than the CR2032, and the CR2032 is not compatible with the CR2450. The CR2450 battery is much larger than the CR2032. If used in a CR2032 device, it will cause problems. So, when buying these batteries, check if they can be used as primary batteries. 

Can CR2430 replace CR2450?

The CR2430 can't replace the CR2450. The CR2430 and CR2450 batteries are similar in size and voltage, but differ in capacity and thickness. The CR2450 battery is thicker and has a higher capacity than the CR2430. A CR2430 battery won't give you as much power as a CR2450. Use the right battery for the device to make sure it works and is compatible. 

CR2450 equivalent

The CR2450 is not compatible with other battery types, but sometimes a similar battery can be used.

The BR2450 is a cadmium-mercury-free lithium battery with a similar capacity to the CR2450 but a slightly higher voltage. This battery is cadmium-mercury free, which is better for the environment. However, it may affect the device's performance, so check if the device supports it.

There are several common equivalent models of the CR2450, all with a 3V voltage and similar specs.

DL2450
EC2450
KL2450
LM2450

CR2450 & CR2032 Button battery life

The effect of use environment on battery life

The life of CR2450 and CR2032 batteries depends on how they are used. If the battery is used in extreme temperatures, it will last less. If the battery is stored in a humid environment, its capacity will decrease. 

Correct use

Proper use can also extend the service life of CR2450 & CR2032 batteries. When not in use, remove the battery from the device to save power. Also, choose the right load current to avoid using too much power. 

Storage mode

How you store CR2450 and CR2032 batteries affects how long they last. Store batteries in a dry, cool place without direct sunlight. If the battery is not used for a long time, check its voltage regularly.

As the CR2450 & CR2032 battery gets old, its voltage drops. If the device is slow, the battery may need to be replaced.

To stay safe, follow the instructions for small electronic devices to avoid problems like short circuits or battery damage.