The CR2450 battery is a non-rechargeable lithium battery that belongs to the coin or button cell battery family. The alpha-numeric code "CR2450" is actually indicative of the battery's characteristics:
"C" stands for lithium.
"R" refers to its round shape.
The number "24" indicates the battery's diameter in millimeters, approx. 24.5 mm (about 0.964 inches).
"50" signifies the height of the battery, approx. 5.0 mm (about 0.197 inches).
CR2450 batteries are designed for applications that require prolonged power supply, such as watches, computer motherboards, medical devices, toys, key fobs, LED flashlights, and other compact, portable electronic devices.
Parameter Specifications
The parameters of a CR2450 battery can vary slightly depending on the manufacturer, but generally, they adhere to the following standard specifications:
Nominal Voltage: The standard voltage for a CR2450 battery is 3.0 volts.
Diameter and Height: The diameter of a CR2450 battery is approximately 24.5mm (~0.964 inches), and the height is approximately 5.0mm (~0.197 inches).
Weight: On average, a CR2450 battery can weigh between 5.7 to 6.3 grams (0.2 - 0.222 ounces).
Capacity: The typical nominal capacity of a CR2450 battery usually lies in the range of 600-620 mAh. It's worth noting that some older models and models explicitly intended for high-drain devices feature a capacity of 540-580 mAh.
Chemistry: The negative electrode of a CR2450 battery is composed of lithium, while the positive electrode is made of manganese dioxide.
Operating Temperature: Most CR2450 batteries are engineered to operate effectively in a wide temperature range, typically from -20 degrees Celsius (-4°F) to +60 degrees Celsius (140°F). However, some brands may support wider temperature ranges.
Shelf-Life: The battery life of a CR2450 is quite durable. Depending on the model and the quality of the brand, the shelf life can range from 3 years to over 10 years.
Discharge Rate: The standard discharge rates can vary, but most CR2450 batteries are designed to withstand drains of around 1-3 milliamps.
Please note that while most lithium batteries, including the CR2450, are non-rechargeable, there are lithium-ion counterparts, such as the LiR2450, which can be recharged. However, these batteries often have a higher nominal voltage (3.6V or 3.7V), and care must be taken to ensure compatibility with devices intended for the 3.0V CR2450 battery.
CR2450 vs CR2032 Battery
The CR2450 and CR2032 are both non-rechargeable lithium batteries typically used in small electronic devices. Here's a comparison of them across several key parameters:
CR2450 vs CR2032 Difference
| Parameter | CR2450 | CR2032 |
|---|
| Nominal Voltage | 3.0 volts | 3.0 volts |
| Diameter (mm) | 24.5 mm | 20 mm |
| Height (mm) | 5 mm | 3.2 mm |
| Weight (g) | 5.7 - 6.3 g | ~3.2 g |
| Capacity | 600 - 620 mAh | 220 - 240 mAh |
| Chemistry | Lithium/Manganese Dioxide | Lithium/Manganese Dioxide |
| Typical Uses | Flashlights, larger digital devices | Watches, calculators, car remotes |
The CR2450 and CR2032 are non-rechargeable lithium batteries, with their numeric values representing the respective dimensions. CR2450, indicating a diameter of 24.5mm and thickness of 5mm, is larger than the CR2032, which has a diameter of 20mm and a thickness of 3.2mm. This larger size corresponds to a higher capacity in CR2450 of about 600-620mAh compared to 220-240mAh in the CR2032, despite both having a nominal voltage of 3.0 volts from their lithium chemistry. The CR2450, weighing between 5.7 and 6.3 grams, is heavier than the CR2032, which weighs about 3.2 grams.
Both battery types are utilized in devices requiring reliable long-term power at a low current. However, the larger size and capacity of the CR2450 mean that it's typically found in devices that require greater power consumption, such as particular flashlights and larger digital devices. On the other hand, the CR2032 is used in smaller devices including watches, calculators, and car remote controls due to its smaller size and lower capacity.
CR2450 Equivalent Batteries
CR2450 batteries are a popular size of coin cell battery, but there are equivalent batteries available from various manufacturers. Here are a few batteries that are equivalent to the CR2450:
Energizer: ECR2450
Duracell: DL2450
Maxell: CR2450
Varta: CR2450
Panasonic: CR2450
Sony: CR2450
Renata: CR2450
These are all interchangeable as long as the device requires a CR2450 battery. However, it's always good to check the owner's manual of your device to ensure compatibility.
Remember, the difference in these batteries primarily lies in the brand. Depending on the quality of manufacturing, materials used, and so on, there might be a small variation in their lifespan, but they are essentially the same kind of battery.
CR2450 vs CR2430 vs CR2477
The CR2450, CR2430, and CR2477 are all types of lithium coin cell batteries. The numeric part of each battery's name indicates the size, with the first two digits referring to the diameter in millimeters, and the last two to thickness in tenths of millimeters.
CR2450: This battery has a diameter of 24.5mm and a thickness of 5.0mm. It tends to have a capacity of about 600-620mAh and weighs roughly 6.2 grams.
CR2430: This battery is also 24.5mm in diameter but is thinner at 3.0mm. This results in a lower capacity, typically between 270-300mAh, and it weighs less, at around 4.2 grams.
CR2477: This battery is thicker with a diameter of 24.5mm and a thickness of 7.7mm. This additional thickness allows for a larger capacity, typically around 1000mAh, and a weight of around 8 grams.
All three batteries provide a standard voltage of 3.0 volts. In terms of usage, these batteries see common applications in electronic devices that require small, compact power sources. However, the correct battery to use comes down to your specific device's power requirement and physical space availability.
Can CR2477 replace CR2450?
Panasonic CR2477 vs CR2450(top) Parameter
While the CR2477 and CR2450 batteries have the same voltage (3.0V) and diameter (24.5mm), they differ in thickness, with the CR2477 being thicker (7.7mm) than the CR2450 (5.0mm). This difference can potentially cause issues when attempting to replace a CR2450 with a CR2477 in devices designed for the thinner battery, such as difficulty fitting into the battery compartment or problems with the device's cover or casing. Additionally, the CR2477 has a higher capacity (around 1000mAh) compared to the CR2450 (600-620mAh), which could theoretically extend battery life, but this also depends on the device's power consumption. Therefore, while it is electrically possible to substitute a CR2450 with a CR2477, the size difference may make it practically unfeasible.
Frequently Asked Questions
1. Are cr2450 and cr2032 interchangeable?
No, CR2450 and CR2032 batteries are not interchangeable. Although they have the same diameter (24.5mm), the CR2450 is thicker (5.0mm) than the CR2032 (3.2mm). This difference in size means they cannot be used interchangeably in most devices.
2. Are cr2450 and cr2025 interchangeable?
No, CR2450 and CR2025 batteries are not interchangeable. They have different thicknesses, with the CR2450 being 5.0mm thick and the CR2025 being 2.5mm thick. The diameter is the same (24.5mm), but the size difference prevents them from being used interchangeably.
3. Are cr2450 and dl2450 the same?
Yes, CR2450 and DL2450 are the same type of battery. The "CR" and "DL" prefixes are used by different manufacturers but refer to the same battery size and specifications.
4. Can cr2450 replace cr2032?
No, a CR2450 cannot replace a CR2032 in most cases. The CR2450 is thicker (5.0mm) than the CR2032 (3.2mm), which can cause issues with fitting the battery in devices designed for the thinner CR2032.
5. Is bmw key battery cr2450 or cr2032?
The battery type for a BMW key fob depends on the specific model and year of the vehicle. Some BMW key fobs use CR2032 batteries, while others use CR2450 batteries. It is best to consult your vehicle's manual or a trusted BMW dealer to determine the correct battery type for your specific key fob.
6. What are cr2450 batteries used for?
No, CR2450 and CR2025 batteries are not interchangeable. They have different thicknesses, with the CR2450 being 5.0mm thick and the CR2025 being 2.5mm thick. The diameter is the same (24.5mm), but the size difference prevents them from being used interchangeably.
7. Are cr2450 and dl2450 the same?
CR2450 batteries are commonly used in various small electronic devices, such as: Watches, Calculators, Medical devices (e.g., glucose monitors, digital thermometers), Keyless entry systems (e.g., car keys, garage door openers), Toys, LED lights, Small remote controls, Computer motherboards (as CMOS batteries).