When it comes to small, coin-shaped batteries, two of the most commonly used types are the CR2016 and CR2032. These batteries are frequently found in various electronic devices, including watches, calculators, toys, remote controls, and more. Despite their similar appearance, many people wonder if the CR2016 and CR2032 are interchangeable or if they are the same battery.
In this comprehensive blog post, we’ll break down the differences and similarities between the CR2016 and CR2032 batteries, providing clarity on their specifications, applications, and whether or not they can be swapped in your devices.
What Are CR2016 and CR2032 Batteries?
Both CR2016 and CR2032 are types of lithium coin cell batteries, which are designed to provide reliable, long-lasting power for small electronic devices. These batteries are widely available, affordable, and typically used for devices that require a stable, low-drain power source.
• CR2016: The CR2016 is a 3-volt lithium coin cell battery that is 20mm in diameter and 1.6mm in height. It’s known for its relatively thin profile compared to some other lithium batteries.
• CR2032: Like the CR2016, the CR2032 is also a 3-volt lithium coin cell battery. However, the CR2032 is 20mm in diameter, just like the CR2016, but it is slightly thicker at 3.2mm.
Despite their similar names and diameter, these two batteries differ primarily in their thickness, capacity, and performance characteristics. These differences can have a significant impact on their suitability for specific devices.
Key Differences Between CR2016 and CR2032
Let’s break down the key differences between the CR2016 and CR2032 batteries:
| Feature | CR2016 | CR2032 |
|---|---|---|
| Diameter | 20mm | 20mm |
| Height/Thickness | 1.6mm | 3.2mm |
| Nominal Voltage | 3V | 3V |
| Capacity | 90mAh | 220mAh |
| Average Discharge Current | 0.2mA - 0.5mA | 0.2mA - 0.5mA |
| Typical Use | Watches, key fobs, small toys | Watches, calculators, motherboards, medical devices |
| Shelf Life | 5 years | 10 years |
How Do the CR2016 and CR2032 Compare in Terms of Capacity?
One of the most notable differences between the CR2016 and CR2032 is their capacity. Capacity refers to the amount of energy the battery can store and provide over time. The CR2016 has a smaller capacity (90mAh), while the CR2032 offers a larger capacity (220mAh). This means that the CR2032 can last longer than the CR2016 before needing to be replaced, which is one of the reasons why the CR2032 is used in devices that demand longer battery life.
• CR2016: The CR2016 can last for a few months to a couple of years in devices with low to moderate energy consumption.
• CR2032: The CR2032, with its higher capacity, typically provides longer battery life in devices like medical instruments or motherboards that may need to run continuously for a longer period.
Can You Replace CR2016 with CR2032?
The short answer is: Not always.
Although both batteries have the same diameter of 20mm, the thickness difference (1.6mm for the CR2016 vs. 3.2mm for the CR2032) may cause fitment issues in devices. For instance:
• Device Design: Some devices are specifically designed to accommodate the thinner CR2016, and trying to insert a thicker CR2032 might result in improper seating or the battery not fitting in the compartment.
• Electrical Compatibility: While the voltage is the same (3V), the higher capacity of the CR2032 means it could potentially provide a longer runtime, which might be advantageous in devices that use a lot of power. However, not all devices are engineered to handle the additional capacity, and using the CR2032 could affect the device’s performance.
In some cases, using a CR2032 in place of a CR2016 could work fine, but it’s always best to check the manufacturer’s specifications before attempting a battery swap.
Applications: Where Are CR2016 and CR2032 Used?
Both the CR2016 and CR2032 are used in a variety of consumer electronics and devices. The difference in their specifications makes them more suited to different kinds of products:
CR2016 Applications:
• Watches: Many watches, especially thinner models, use the CR2016 due to its compact size.
• Key Fobs: Car key fobs and remote controls often use CR2016 batteries for their small form factor.
• Small Toys: Battery-operated toys, particularly ones with low energy demands, might use a CR2016.
• Medical Devices: Some medical devices like glucose meters or hearing aids use CR2016 batteries.
CR2032 Applications:
• Watches: The CR2032 is also commonly used in watches that require a longer battery life or more power.
• Motherboards and BIOS: CR2032 batteries are frequently used to power the CMOS/RTC on computer motherboards.
• Calculators: Devices like scientific calculators often use the CR2032 for reliable, long-lasting power.
• Fitness Trackers: Some wearable devices may use the CR2032 for extended usage.
• Medical Devices: Devices like pacemakers and blood glucose monitors often use CR2032 batteries for their longer lifespan.
Frequently Asked Questions (FAQ)
1. Can I use a CR2032 instead of a CR2016 in my device?
It depends on the device. Although the CR2032 and CR2016 have the same diameter, the CR2032 is thicker. If the device is designed to fit a CR2016, the CR2032 might not fit. Always check the battery compartment or device manual to ensure compatibility.
2. Will a CR2032 last longer than a CR2016?
Yes, the CR2032 has a higher capacity (220mAh vs. 90mAh), which means it can provide power for a longer period of time. It’s suitable for devices that need more energy, such as medical equipment or computer motherboards.
3. Are CR2016 and CR2032 interchangeable in all devices?
No, they are not always interchangeable. The key difference in thickness means that a CR2032 may not fit into a battery compartment designed for the thinner CR2016. Additionally, some devices may require the specific power characteristics of the CR2016 or CR2032.
4. Can I use a CR2016 instead of a CR2032?
Using a CR2016 instead of a CR2032 is generally not recommended, as the CR2016 has a lower capacity and will likely run out of power more quickly. However, if the device is designed to fit the thinner CR2016, and the extra power isn’t needed, it could still work.
5. How do I know which battery to use?
To determine which battery to use, always refer to your device’s manual or the marking on the battery compartment. Manufacturers usually recommend the type of battery that is best suited for the device. If you're unsure, contacting the manufacturer is a good option.
Conclusion
While the CR2016 and CR2032 are both 3-volt lithium coin cell batteries with the same diameter, their differences in thickness and capacity make them suitable for different types of devices. The CR2032 offers a higher capacity and longer lifespan, making it a better choice for devices with higher power demands. However, the CR2016 is thinner, making it the preferred option for compact devices.
The comparison between CR2016 and CR2032 sheds light on the nuanced disparities that dictate their suitability for various electronic devices. While these button batteries share certain similarities, such as their compact dimensions and coin-like appearance, their divergent specifications make them distinct entities. Whether it be the discrepancy in diameter, thickness, or voltage, understanding these differences empowers consumers to make informed choices based on the specific requirements of their devices. When choosing between these two batteries, always consider the device’s design and power requirements. If in doubt, consult the device manual to ensure compatibility.
Written by Icey Ye from AIChipLink.
AIChipLink, one of the fastest-growing global independent electronic component distributors in the world, offers millions of products from thousands of manufacturers. Whether you need assistance finding the right part or electronic components manufacturers for your design, you can contact us via phone, chat or e-mail. Our support team will answer your inquiries within 24 hours.
Disclaimer: This article is provided for general information and reference purposes only. The opinions, beliefs, and viewpoints expressed by the author of this article do not necessarily reflect the opinions, beliefs, and viewpoints of AIChipLink or official policies of AIChipLink.
