CR2016 Battery vs. CR2025: Comparing Button Cell Battery Types

Button cell batteries are commonly found in various small electronic devices, such as watches, calculators, and key fobs. Among the many button cell battery types available, the CR2016 and CR2025 are two popular options. In this comprehensive article, we will delve into a detailed comparison of the CR2016 and CR2025 batteries, discussing their specifications, differences, potential use cases, and compatibility with various devices.

CR2016 Battery vs. CR2025: Comparing Button Cell Battery Types

CR2016 Battery Specifications

The CR2016 battery is a lithium button cell battery with the following specifications:

  • Chemistry: Lithium (non-rechargeable)
  • Diameter: 20mm
  • Height: 1.6mm
  • Voltage: 3V
  • Capacity: Approximately 90mAh

CR2025 Battery Specifications

The CR2025 battery is another lithium button cell battery with these specifications:

  • Chemistry: Lithium (non-rechargeable)
  • Diameter: 20mm
  • Height: 2.5mm
  • Voltage: 3V
  • Capacity: Approximately 160mAh

When it comes to comparing CR2016 and CR2025 batteries, there are some key differences to consider. Detailed discussions include:

Physical Size and Weight

One of the most noticeable differences between the CR2016 and CR2025 batteries is their size. The CR2016 battery is slightly smaller, with dimensions of 20mm in diameter and 1.6mm in thickness. The CR2025 battery, on the other hand, is slightly larger, with dimensions of 20mm in diameter and 2.5mm in thickness. The difference in size can have an impact on the compatibility of the battery with certain devices, as well as the overall weight of the device.

Characteristics Comparison of CR2016 and CR2025 Batteries

Physical Size20mm x 1.6mm20mm x 2.5mm
Life Span2-3 years3-5 years
Common UsesRemote controls, calculators, small toysFitness trackers, remote controls, calculators, medical devices

Capacity and Life Span

In terms of capacity and life span, CR2025 batteries are superior to CR2016 batteries, with a higher capacity and longer life span. This means that devices powered by CR2025 batteries will generally have a longer runtime before needing a battery replacement, which can be more convenient for users and reduce overall battery waste.


Another key difference between the CR2016 and CR2025 batteries is their performance. The CR2025 battery has a higher capacity, which translates into a more powerful output. This makes the CR2025 battery a better choice for applications that require higher power output, such as digital cameras and remote controls. The CR2016 battery, on the other hand, has a lower capacity, which makes it a better choice for low-power devices such as calculators and small LED lights.


The cost of batteries is also an important consideration, and the CR2016 and CR2025 batteries are no exception. On average, the CR2025 battery is more expensive than the CR2016 battery, but this difference in price is often outweighed by its improved performance and longer shelf life. Factors such as demand, production, and distribution can also influence the cost of batteries, so it is important to consider these factors when making a decision.

Common Applications for CR2016 and CR2025 Batteries

Both the CR2016 and CR2025 batteries are used in a wide range of small electronic devices due to their compact size and reliable power output. Some common applications for these batteries include:

  • Watches: Many wristwatches use button cell batteries like the CR2016 and CR2025 to power their internal mechanisms and digital displays.
  • Calculators: Compact calculators often rely on button cell batteries, as they provide a consistent voltage and can fit in the slim casing of the calculator.
  • Key fobs: The remote functionality of car key fobs typically requires a button cell battery, such as the CR2016 or CR2025, to operate.
  • Medical devices: Some hearing aids and glucose monitors use button cell batteries, like the CR2016 or CR2025, due to their small size and consistent voltage output.
  • Small electronic toys and games: Button cell batteries are used in some small electronic toys and games, as they can fit in the limited space available and provide a stable voltage for the device to function.

Device Compatibility and Battery Replacement

The CR2016 and CR2025 batteries are often used interchangeably in many devices due to their similar voltage and diameter. However, it is essential to consider the battery compartment size and the device’s power requirements before using one battery as a replacement for the other.

If your device requires a CR2016 battery, you may be able to use a CR2025 battery as a replacement if the battery compartment can accommodate the increased height. However, you should always consult your device’s user manual or contact the manufacturer for guidance on compatible battery types.

Likewise, if your device requires a CR2025 battery, you can use a CR2016 battery if the battery compartment can securely hold the thinner battery. Keep in mind that the CR2016 battery has a lower capacity, which may result in a shorter battery life.

Storage and Disposal of Button Cell Batteries

Proper storage and disposal of button cell batteries are essential to ensure the safety of both the user and the environment. Here are some tips for storing and disposing of CR2016 and CR2025 batteries:

  1. Storage: Store unused batteries in a cool, dry place away from direct sunlight and heat sources. Keep them in their original packaging or a separate container to prevent contact with metal objects, which can cause short-circuiting and potential hazards.
  2. Disposal: Button cell batteries, including CR2016 and CR2025 batteries, should never be thrown in regular household trash. Dispose of used batteries at designated battery recycling facilities or collection points in accordance with local regulations. Proper disposal helps prevent environmental pollution and potential hazards caused by the release of toxic materials from the batteries.

Safety Precautions When Handling Button Cell Batteries

When handling and replacing button cell batteries, such as the CR2016 and CR2025, it is important to follow safety precautions to ensure the well-being of both the user and the device:

  1. Always make sure the device is switched off before attempting to replace the battery.
  2. Use the correct tools, such as small screwdrivers or battery removal tools, to safely open the battery compartment.
  3. Avoid using sharp objects or excessive force to pry open the battery compartment, as this can damage the device or the battery.
  4. Keep button cell batteries away from children and pets, as they can pose a choking hazard or cause serious injury if swallowed.
  5. If a button cell battery is swallowed, seek immediate medical attention, as it can cause severe internal injuries.


In conclusion, the main differences between the CR2016 and CR2025 batteries are their height and capacity. While both batteries have a 3V voltage and a 20mm diameter, the CR2025 battery is thicker and has a higher capacity compared to the CR2016 battery. When choosing between these two button cell battery types, it is crucial to consider the device’s battery compartment size and power requirements. Always consult your device’s user manual or the manufacturer for guidance on compatible battery types, and remember to follow safety precautions when handling, storing, and disposing of batteries.