Although the CR2016 and CR2025 batteries may appear similar, they have key differences that distinguish them. For example, the CR2025 battery is thicker, resulting in a higher voltage and a longer lifespan. This makes it suitable for devices that require more energy.

Conversely, the slimmer CR2016 battery is commonly found in low-current devices like calculators and watches, where power requirements are minimal. This raises questions about how these differences affect device compatibility. Can one battery serve as a substitute for the other in various applications?

In this article, we will examine the similarities and differences between two popular lithium coin cells, the CR2025 and CR2016 batteries, to assist you in choosing the one that best suits your needs.

CR2025 vs CR2016 – Similar Features & Applications

Similar Features:

CR2016 and CR2025 batteries have several features in common and are used in a variety of electronic devices. Here’s a look at their similarities regarding features and common applications:

Size and Shape: Both CR2016 and CR2025 batteries are part of the same family of coin cell batteries, sharing a round and flat design with a diameter of 20mm.  

Voltage: They both operate at a nominal voltage of 3V, making them suitable for a wide range of low-power electronic devices. This consistent voltage output ensures dependable performance across various applications.  

Chemical Composition: These batteries are lithium coin cells, consisting of a lithium anode, a manganese dioxide cathode, and an electrolyte. The chemical reaction among these elements generates electrical power.  

Shelf Life: Both CR2016 and CR2025 batteries boast an impressive shelf life of 5 to 10 years, allowing for long-term storage while maintaining their charge until needed.

Common Applications:

Watches: Both batteries are frequently used to power wristwatches, providing a dependable energy source to keep them functioning.  

Calculators: CR2016 and CR2025 batteries are commonly found in calculators, ensuring reliable power for calculations and various functions.  

Remote Controls: These batteries are often used in small remote controls for televisions, DVD players, and gaming consoles.  

Key Fobs: Many car key fobs and other devices rely on CR2016 or CR2025 batteries to enable remote locking and unlocking features.  

Fitness Trackers: These batteries power fitness trackers and activity monitors, supplying the energy needed to track steps, heart rate, and other health metrics.  

Small Medical Devices: CR2016 and CR2025 batteries are utilized in various small medical devices like glucometers, thermometers, and blood pressure monitors.  

Electronic Toys: Many electronic toys, including small robots and interactive gadgets, depend on CR2016 or CR2025 batteries for their energy needs.  

Small LED Lights: These batteries are ideal for powering small LED lights found in keychains, mini flashlights, and other portable lighting devices.

Differences Between CR2025 vs CR2016

Size and Shape

One of the most noticeable differences between CR2025 and CR2016 batteries is their dimensions. CR2025 batteries measure 20mm in diameter and 2.5mm in thickness, while CR2016 batteries have the same diameter but are only 1.6mm thick. This results in CR2025 batteries having a slightly higher capacity and longer lifespan compared to CR2016 batteries. However, this increased thickness means that CR2025 batteries may not fit in devices designed for thinner batteries.

Voltage and Capacity

Both CR2025 and CR2016 batteries are lithium coin cells, offering a higher voltage and capacity than other coin cell types. Notably, CR2025 batteries typically provide a voltage of 3 volts with a capacity of around 160 milliampere hours (mAh), while CR2016 batteries have the same voltage but a lower capacity of about 90 mAh. Therefore, CR2025 batteries might be more suitable for devices that demand higher voltage or consume more power.

Applications

The choice between CR2025 and CR2016 batteries often depends on the specific application. CR2025 batteries are frequently used in devices like remote controls, calculators, and electronic key fobs, while CR2016 batteries are commonly found in digital thermometers, glucose meters, and some small LED lights. It's important to note that some devices can accommodate both battery types, while others may require a specific one.

Price

Price is another consideration when selecting between CR2025 and CR2016 batteries. Although prices may vary by brand and retailer, CR2025 batteries are generally priced slightly higher than CR2016 batteries. However, the price difference is usually not significant enough to heavily influence most consumers' decisions.

Are CR2025 vs CR2016 Interchangeable?

CR2016 and CR2025 batteries both have a diameter of 20mm and operate at 3V, leading many to question their interchangeability. While they share the same diameter, they differ in thickness: the CR2016 is 1.6mm thick, whereas the CR2025 measures 2.5mm.

This variation in thickness means that these batteries may not be interchangeable in all devices. For instance, a device designed for a CR2016 battery may not properly accommodate a thicker CR2025 battery. However, some sources indicate that they could be used interchangeably in certain devices if modifications are made, such as adding spacer material to account for the thickness difference.

Ultimately, it’s advisable to follow the battery type recommended by the device manufacturer to ensure optimal performance and prevent potential damage. If a device specifies a CR2016 battery, it's best to use that, and similarly for a CR2025 battery, to guarantee proper voltage and battery life.

Conclusion  

In summy, the decision between CR2025 and CR2016 batteries largely depends on the specific application they will serve. While CR2025 batteries offer greater capacity and a longer lifespan, they may not be compatible with devices designed for thinner batteries. Conversely, CR2016 batteries, with slightly lower voltage and capacity, may be a better fit for devices that require a slimmer profile. It's crucial to take all these factors into account and always verify your device's compatibility with a particular battery type before making a purchase.

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