CR2025 VS CR2016: EXPLORING THE COMPLEXITY OF COIN CELL BATTERIES

CR2025 vs CR2016: Exploring the Complexity of Coin Cell Batteries

CR2025 vs CR2016: Exploring the Complexity of Coin Cell Batteries

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This article will take a look at the differences, similarities, applications, and everything else you need to know when choosing between CR2025 and CR2016 coin cell batteries.

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CR2025 vs CR2016

Basic Characteristics of CR2025 vs CR2016


CR2025

  • Diameter: 20 mm

  • Thickness: 2.5 mm

  • Chemistry: Lithium manganese dioxide (Li-MnO2), nominal voltage 3 volts

  • Capacity: Approximately 200-250 milliamp hours (mAh)


CR2016

  • Diameter: 20 mm

  • Thickness: 1.6 mm

  • Chemistry: Lithium manganese dioxide (Li-MnO2), nominal voltage 3 volts

  • Capacity: Approximately 100-120 milliamp hours (mAh)


Both CR2025 and CR2016 are lithium coin cell batteries, commonly used in small electronic devices such as watches, keychains, and calculators. Their names (CR2025 and CR2016) are not random; they refer to the size of the battery. The "CR" stands for lithium, while the numbers refer to the size - 20 mm in diameter and 2.5 mm or 1.6 mm thick.

Understanding Lithium Button Cells


Lithium button cells are a type of primary cell, which means they are non-rechargeable. Their high energy density, long shelf life, and ability to operate over a wide temperature range make them suitable for a variety of applications.

Basic Structure and Chemistry of Lithium Button Cells


Lithium button cells are typically made up of the following:

  • Positive electrode material: usually manganese dioxide (MnO2).



  • Negative electrode material: metallic lithium (Li).



  • Electrolyte: usually a lithium salt in an organic solvent.



  • Separator: used to separate the positive and negative electrodes to prevent short circuits.



  • Casing: usually a sealed container made of stainless steel or other corrosion-resistant material.


 

Features and Benefits of Lithium Button Cells



  • High Energy Density: Lithium button cells have a relatively high energy density, providing a long service life in a small volume.



  • Stable voltage: The voltage remains relatively stable throughout the discharge process, usually 3 volts.



  • Long life: In low current consumption applications, lithium button batteries can be used for years.



  • Low self-discharge rate: Compared with other types of batteries, lithium button batteries have a low self-discharge rate and good storage performance.


Common features of CR2025 vs CR2016


Dimensions and thickness of CR2025 vs CR2016

The diameter of CR2025 vs CR2016 is the same, but the thickness is different. CR2025 is thicker, so it is generally better than CR2016 in capacity. The thicker design allows it to store more power, thereby extending the use time of the device.

Capacity and performance of CR2025 vs CR2016

Due to the larger capacity of CR2025, it is suitable for small devices that need to be powered for a longer time. For example, smart watches, Bluetooth devices, and other low-power devices that need to work continuously may choose CR2025.
In contrast, the CR2016 is better suited for applications with more stringent space requirements, such as certain types of wireless sensors, small electronic toys, etc., due to its thinner design.

CR2025 vs CR2016 Chemistry and Voltage


Both batteries use lithium manganese dioxide technology, which means they have similar voltage characteristics and chemical stability. Lithium manganese dioxide batteries are known for their high energy density and long life, and are particularly suitable for low current consumption applications.

A Deep Dive into CR2025 Batteries


Let's take a closer look at the CR2025 battery to learn about its specifications, common uses, and why it is the right choice in certain situations.
CR2025
CR2025 Specifications

The CR2025 battery has a diameter of 20mm, a thickness of 2.5mm, and a nominal capacity of about 165mAh. It is typically used in devices with slightly higher energy requirements.
Common Uses for CR2025

You will typically find CR2025 batteries in devices such as car remote control keys, calculators, small toys, digital thermometers, and certain types of watches.
Why  CHOOSE CR2025?

Choose CR2025 when your device requires a higher capacity battery or the battery compartment is designed to accommodate thicker button batteries.

 

A Deep Dive into CR2016 Batteries


Now that we have a good understanding of CR2025, let's focus on CR2016 and see what it brings.
CR2016
CR2016 Specifications
The CR2016 battery has a diameter of 20 mm, a thickness of 1.6 mm, and a nominal capacity of about 90mAh. It is suitable for devices with lower power requirements.

Common Uses of CR2016
CR2016 batteries are commonly used in watches, small toys, blood glucose monitors, and some computer motherboards.

Why Choose CR2016?
Choose CR2016 when your device has lower energy requirements or the battery compartment can only accommodate thinner batteries.

CR2025 vs CR2016: Which One to Choose?


When choosing between CR2025 and CR2016, you must consider the power requirements of your device and the physical space for the battery. If your device requires more power, or the battery compartment can accommodate a thicker battery, choose CR2025. If your device requires less power, or only has room for a thinner battery, choose CR2016.

FAQs


Can I use CR2025 instead of CR2016?
CR2025 and CR2016 have the same diameter (20 mm), but CR2025 is 2.5 mm thick, while CR2016 is 1.6 mm thick. If the battery compartment of a device is designed to accommodate only a battery with a thickness of 1.6 mm, then the CR2025 will not fit. Some devices may have specific requirements for the thickness of the battery, for example, some electronic watches or thin devices may only use CR2016. In this case, using CR2025 may cause the device to not work properly or damage the device.

If your device allows for thicker batteries and can benefit from higher capacity, then using a CR2025 instead of a CR2016 is possible. However, if the device has strict battery size requirements or the device's battery compartment can only accommodate a CR2016, then the substitution may not be feasible. Always confirm the compatibility of your device before making a substitution to avoid damaging the device or affecting its performance.

What does the "CR" in CR2025 and CR2016 stand for?
The "CR" in CR2025 and CR2016 stands for lithium.

What devices use CR2025 and CR2016 batteries?

1.Electronic watches:

Many electronic watches use CR2025 or CR2016 batteries because these batteries have a long lifespan and moderate capacity.

2.Calculators:
Small calculators often use CR2025 or CR2016 batteries, which are able to provide enough power to drive the calculator's display and calculation functions.

3.Remote Control:
Some remote controls for home appliances such as TVs, stereos, and air conditioners use CR2025 or CR2016 batteries, which can meet the low power requirements of remote controls.

4.Electronic Scales:
Many electronic scales use CR2025 batteries because they have a high capacity and can support the normal use of electronic scales.

5.Wireless Mouse and Keyboard:
Some wireless mice and keyboards use CR2016 batteries because they are thin and suitable for installation in compact devices.

6.Blood Glucose Meter:
Medical blood glucose meters usually use CR2025 or CR2016 batteries, which can provide a stable power supply to ensure the accuracy of the device.

7.Game Controller:
Some portable game controllers use CR2025 or CR2016 batteries, which can meet the low power requirements of game controllers.

8.Electronic Thermometer:
Electronic Thermometer usually uses CR2025 or CR2016 batteries, which can provide enough power to drive the temperature sensor and display.

9.Electronic toys:
Some small electronic toys use CR2025 or CR2016 batteries, which can meet the low power consumption requirements of toys.

10.Other small electronic devices:
Many other small electronic devices, such as electronic tags, electronic keys, wireless headphones, etc., may also use CR2025 or CR2016 batteries.

In general, CR2025 and CR2016 batteries are widely used in various low-power electronic devices due to their small size and long service life. When choosing a battery, it is recommended to refer to the device's manual or consult a professional to ensure that the selected battery meets the requirements of the device.

Summary


In summary, the main difference between CR2025 and CR2016 batteries is thickness and capacity. Which battery to choose depends on the specific needs and usage conditions of the device. If the device requires a higher capacity and a longer service life, the CR2025 battery may be a better choice; if the device requires a smaller thickness and a moderate capacity, the CR2016 battery may be more suitable. When choosing a battery, it is recommended to refer to the device's manual or consult a professional to ensure that the selected battery meets the requirements of the device.

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