CR2025 Battery: How Many Cells, Specifications, and Uses Explained

The CR2025 battery is a lithium coin cell. It measures 20mm in diameter and 2.5mm tall, with a voltage of 3V. Each CR2025 contains one cell, offering a capacity of around 150mAh. This battery is widely used in devices such as watches, remotes, and calculators due to its compact size and efficiency.

The key specifications of the CR2025 battery include a capacity of approximately 150 mAh and a chemistry based on lithium manganese dioxide. This allows for a steady discharge rate, making it reliable for long-term use. The CR2025 battery is extensively used in electronic devices. Common applications include wristwatches, calculators, key fobs, and medical devices. Its lightweight nature and stable performance enhance the functionality of these devices.

The CR2025 battery’s popularity stems from its convenience and efficiency. Users benefit from its long shelf life and consistent power output. Understanding the specifications and applications of the CR2025 battery sets the stage for exploring its alternatives. Next, we will delve into the differences between the CR2025 and similar batteries, such as the CR2016. This comparison will help you choose the right battery for your specific needs.

How Many Cells Are Found in a CR2025 Battery?

A CR2025 battery contains one cell. This single cell is a lithium coin cell, typically measuring 20 mm in diameter and 2.5 mm in thickness. The “CR” designation refers to lithium manganese dioxide chemistry, while “2025” specifies the battery’s dimensions.

These batteries are commonly used in small electronic devices. They power items such as wristwatches, calculators, and key fobs. Due to their compact size and relatively high energy density, they are ideal for devices that require a low amount of current over an extended period.

Factors that influence the effectiveness of a CR2025 battery include temperature and storage conditions. High temperatures can shorten the battery’s lifespan, while very low temperatures may reduce its performance. Additionally, CR2025 batteries typically have a shelf life of up to 10 years, which can vary based on the manufacturer and storage practices.

In summary, a CR2025 battery contains one cell and is commonly used in small electronics. It is important to consider external factors like temperature and storage conditions, as they can affect the battery’s performance and lifespan. Further exploration could include details about the differences between other battery types and their specific applications.

What Are the Essential Specifications of a CR2025 Battery?

The essential specifications of a CR2025 battery include its chemistry, voltage, dimensions, capacity, and use cases.

  1. Battery Chemistry: Lithium Manganese Dioxide (LiMnO2)
  2. Voltage: 3 volts
  3. Dimensions: 20 mm diameter and 2.5 mm height
  4. Capacity: Typically between 150-170 mAh
  5. Common Uses: Watches, calculators, keyless entry remotes, and small electronic devices

The following sections provide detailed explanations of each specification, illustrating their significance and relevance.

  1. Battery Chemistry: The CR2025 battery utilizes Lithium Manganese Dioxide (LiMnO2) as its chemical composition. This type of chemistry offers a stable voltage and good energy density, making it suitable for long-term applications in low-drain devices. Lithium batteries are preferred for their lightweight characteristics and ability to operate effectively in a wide temperature range, thus ensuring reliability.

  2. Voltage: The standard voltage of a CR2025 battery is 3 volts. This consistent voltage output is crucial for ensuring that electronic devices operate efficiently. The 3-volt specification is common in coin cell batteries and allows compatibility with a wide variety of devices. This voltage level is particularly important to maintain the functionality of small electronics such as watches and remotes.

  3. Dimensions: The CR2025 battery measures 20 mm in diameter and 2.5 mm in height. These compact dimensions allow it to fit effortlessly into small electronic devices without taking up significant space. The slim profile is crucial when designing devices like wristwatches, which require both functionality and aesthetics.

  4. Capacity: The capacity of a typical CR2025 battery ranges from 150 mAh to 170 mAh. This capacity indicates how much electric charge the battery can hold, impacting the lifespan of the devices utilizing it. Devices with low power requirements can operate for extended periods on a single CR2025, making it a cost-effective power source. However, users should be aware that higher capacity can lead to increased cost, which might not be justifiable for low-drain applications.

  5. Common Uses: The CR2025 battery is widely used in various applications, including watches, calculators, and keyless entry remotes. Its compact size and stable voltage make it ideal for devices where space and consistent power are essential. Some might argue that as technology advances, newer batteries with higher capacities or different chemistries could replace CR2025 batteries. Nonetheless, for many existing applications, the CR2025 remains a reliable choice due to its availability and proven performance.

What Is the Voltage of a CR2025 Battery?

A CR2025 battery is a lithium coin cell battery with a nominal voltage of 3 volts. This battery is commonly used in small electronic devices such as watches, calculators, and key fobs.

According to the Battery University, coin cell batteries, like the CR2025, provide stable power for low-drain applications. They are rechargeable but typically designed as non-rechargeable primary cells.

The CR2025 battery is 20 mm in diameter and 2.5 mm in thickness. Its chemistry allows for a longer shelf life compared to alkaline batteries. These batteries operate effectively within a temperature range of -20°C to 60°C.

The National Electrical Manufacturers Association (NEMA) describes lithium batteries as having a high energy density, which contributes to their long-lasting performance. The CR2025 is favored for its reliability in critical applications, where failure is not an option.

Factors that affect battery performance include temperature, discharge rates, and age. High temperatures can accelerate the chemical reactions inside, leading to quicker depletion.

Industry data suggests that the demand for lithium coin cells is projected to grow by 7% annually, driven by increased use in wearables and IoT devices, as reported by Mordor Intelligence.

The widespread adoption of CR2025 batteries impacts the electronics industry by enabling the development of compact, efficient devices. This creates opportunities for innovation in technology and convenience for consumers.

Environmental concerns arise around battery disposal and recycling. Managing electronic waste is crucial to reducing toxic waste in landfills.

To mitigate environmental impacts, experts recommend recycling programs for batteries. Organizations like Call2Recycle promote battery recycling to prevent environmental contamination.

Effective strategies include education on proper disposal practices and enhancing consumer awareness about available recycling options. Implementing local collection programs can also promote responsible usage and disposal.

What Is the Capacity Measured in mAh of a CR2025 Battery?

The capacity of a CR2025 battery is measured at approximately 150 milliampere-hours (mAh). This classification indicates the battery’s ability to provide a consistent current over a specific period before depletion.

According to the International Electrotechnical Commission (IEC), the CR2025 is a standard coin cell battery often used in small electronic devices. It falls under the category of lithium batteries, characterized by its high energy density and long shelf life.

A CR2025 battery features a nominal voltage of 3 volts. It is typically used in devices such as watches, calculators, and remote controls. Its compact size allows it to easily fit into tight spaces in electronic devices.

The Battery University describes lithium batteries as having excellent longevity and stability. This reliability emphasizes their preference in various applications, particularly those requiring long-lasting power.

Factors contributing to the degradation of battery life include high temperatures, misuse, and over-discharge situations. Proper usage can significantly extend the operational duration of the CR2025 battery.

Statistics show that lithium batteries, like the CR2025, have a discharge rate of about 0.1 to 2% per year. This is a direct consequence of chemical reactions within the cell. These figures highlight the advantages of lithium technology in consumer products.

The implications of using efficient batteries like the CR2025 are vast. Improved power sources can lead to smaller, more energy-efficient devices, reducing overall energy consumption in society.

The CR2025 battery impacts various aspects, including technology, environment, and economy. Its reliable performance in electronic devices contributes to a growing demand for compact and efficient power solutions.

Efforts to increase battery recycling and improve energy efficiency are crucial. Organizations like the Rechargeable Battery Recycling Corporation advocate for responsible disposal and recovery of battery materials.

Strategies such as enhancing battery technology and implementing stricter environmental regulations can mitigate issues associated with battery production and disposal. Such measures can promote sustainability and reduce ecological impact.

In Which Devices Is a CR2025 Battery Commonly Used?

A CR2025 battery is commonly used in small electronic devices. These devices include calculators, remote controls, keyless entry systems, fitness trackers, and wristwatches. The battery’s compact size and reliable power make it suitable for these applications. Its thin profile also allows it to fit into slim devices without taking up much space.

How Is a CR2025 Battery Utilized in Watches and Other Wearables?

A CR2025 battery is commonly utilized in watches and other wearables due to its compact size and reliable power output. This coin cell battery has a diameter of 20 mm and a thickness of 2.5 mm. It features a voltage of 3 volts, providing consistent energy for small electronic devices.

In watches, the CR2025 battery powers the timekeeping mechanisms and electronic displays. Its stable voltage ensures accurate timekeeping and extended battery life. In other wearables, such as fitness trackers, the CR2025 battery supplies energy to sensors that monitor health metrics.

This battery’s lightweight and flat design make it suitable for slim devices. Its widespread availability also contributes to its use in various applications. Users benefit from the ease of replacement and the long shelf life of the CR2025 battery. Overall, the CR2025 battery effectively meets the power needs of watches and wearables, supporting their functionality and user convenience.

Why Do Key Fobs Depend on a CR2025 Battery?

Key fobs depend on a CR2025 battery because it provides a reliable power source in a compact size, optimal for their design and function. These batteries are commonly used in key fobs due to their longevity and performance in low-drain devices like remote entry systems.

The Battery University, a reputable resource on battery technology, defines CR2025 batteries as lithium coin cells with a diameter of 20mm and a thickness of 2.5mm. They are favored for their stable voltage output and the ability to operate across a wide temperature range.

Several reasons explain why key fobs rely on CR2025 batteries. First, these batteries exhibit a high energy density, meaning they can store a significant amount of power relative to their size. Second, lithium technology enables better performance in varying temperatures, which is essential for key fobs that experience different environmental conditions. Lastly, the low self-discharge rate ensures that the battery retains its power for an extended period, which is ideal since key fobs are not frequently used.

Battery terminology can include “energy density,” which refers to the amount of energy stored per unit volume. A higher energy density allows for smaller batteries that still provide adequate power. The “self-discharge rate” indicates how quickly a battery loses energy when not in use, with lower rates indicating better long-term storage capacity.

Key fob operation involves a simple mechanism: pressing a button on the fob sends a radio frequency signal to the vehicle to unlock or start it. The CR2025 battery powers the radio transmitter inside the fob, enabling it to send and receive signals consistently. If the battery fails or its voltage drops below a certain threshold, the fob may not operate correctly.

Specific conditions impacting CR2025 battery life include temperature extremes and battery age. For instance, prolonged exposure to extreme heat can accelerate battery degradation. Conversely, consistently cold conditions can temporarily reduce battery effectiveness. For example, a key fob left in a car during winter may experience delayed performance until the battery warms up. Regularly replacing the battery every few years can prevent these issues and ensure reliable functionality.

What Other Devices Require a CR2025 Battery?

The CR2025 battery is commonly used in various devices, such as watches and key fobs.

  1. Common devices that require a CR2025 battery include:
    – Watches
    – Remote controls
    – Key fobs for vehicles
    – Fitness trackers
    – Calculators
    – Medical devices
    – Toys
    – Some types of cameras

Several devices utilize the CR2025 battery due to its compact size and reliable power. It is essential to note that while many devices use this battery, some devices may have alternative power requirements.

  1. Watches:
    CR2025 batteries are often used in watches, particularly in quartz models. These batteries provide a reliable power source for timekeeping functions. Many companies, such as Casio and Seiko, incorporate CR2025 batteries in their designs because of their long shelf life and efficient energy output.

Remote Controls:
CR2025 batteries power remote controls, including those for televisions and other electronic devices. Their compact size makes them ideal for handheld devices. Companies like Sony and Panasonic often use this battery type in their remote control designs for consumer electronics.

Key Fobs for Vehicles:
Automotive key fobs frequently utilize CR2025 batteries. These batteries allow for features like keyless entry and engine start. Many major car manufacturers, such as Honda and Ford, rely on this battery for their key fobs to ensure functionality.

Fitness Trackers:
Many fitness trackers, like those from Fitbit or Garmin, require CR2025 batteries. These batteries support sensors that monitor health metrics such as heart rate and steps. Their small size allows for efficient use within compact wearable technology.

Calculators:
Some calculators, especially portable ones, use CR2025 batteries for power. The long battery life and reliability of this battery ensure that calculators can function for extended periods without needing frequent replacements.

Medical Devices:
Certain medical devices, like glucose meters or hearing aids, may also use CR2025 batteries. The reliability of the battery is crucial for ensuring accurate readings and efficient operation in medical applications.

Toys:
Various electronic toys, including remote-controlled models and novelty items, commonly use CR2025 batteries. Their compact nature allows for integration into small electronic components.

Some Types of Cameras:
Certain cameras, particularly compact digital or point-and-shoot models, may use the CR2025 battery for powering features such as memory retention.

In conclusion, the CR2025 battery serves a wide array of devices, demonstrating its versatility and importance in modern technology.

How Does a CR2025 Battery Compare to Similar Coin Cell Batteries?

A CR2025 battery compares to similar coin cell batteries in terms of size, capacity, and applications. The CR2025 battery measures 20 millimeters in diameter and 2.5 millimeters in thickness. It typically has a capacity of about 150 mAh, which allows it to power devices for a reasonable period. In contrast, the CR2032 battery is thicker, measuring 3.2 millimeters, and offers a higher capacity, around 220 mAh. This means the CR2032 can generally provide longer usage times for devices that require more power.

When considering CR2016 batteries, they are thinner than the CR2025 but have less capacity, typically around 90 mAh. Each of these batteries contains lithium technology, which gives them a stable voltage and a long shelf life.

Applications for the CR2025 include watches, calculators, and remote controls. The choice between these batteries depends on the specific requirements of the device, such as size constraints and energy demands. Ultimately, the CR2025 battery is ideal for applications where space is limited but some durability is still needed.

What Are the Key Differences Between CR2025 and CR2032 Batteries?

The key differences between CR2025 and CR2032 batteries include their dimensions, capacity, and applications.

  1. Dimensions:
    – CR2025: 20 mm diameter, 2.5 mm height
    – CR2032: 20 mm diameter, 3.2 mm height

  2. Capacity:
    – CR2025: Typically around 150 mAh
    – CR2032: Typically around 220 mAh

  3. Applications:
    – CR2025: Used in smaller devices like watches and fitness trackers
    – CR2032: Used in larger devices like remote controls and motherboards

Understanding the distinctions between these two battery types helps in selecting the right one for specific devices.

  1. Dimensions:
    The dimensions of CR2025 and CR2032 batteries provide essential information for fitting them into devices. The CR2025 battery measures 20 mm in diameter and 2.5 mm in height. In comparison, the CR2032 battery also has a diameter of 20 mm but is taller at 3.2 mm. This 0.7 mm difference in height means the CR2032 may not fit in devices designed for the CR2025. It’s crucial to check device specifications before replacement.

  2. Capacity:
    The capacity of these batteries varies significantly. The CR2025 generally has a capacity of around 150 milliampere-hours (mAh), while the CR2032 offers a higher capacity of approximately 220 mAh. This means that the CR2032 can provide a longer usage time in devices that require more energy. Therefore, selecting the CR2032 over the CR2025 increases battery life for power-hungry applications, making it a preferred option when space allows.

  3. Applications:
    The applications of CR2025 and CR2032 batteries differ based on their size and capacity. The CR2025 is commonly found in smaller, compact devices such as wristwatches, fitness bands, and small remote controls. The CR2032, with its higher capacity, is typically used in larger devices like computer motherboards, car key fobs, and electronic toys. Thus, understanding the intended application is vital for proper battery selection.

Why Choose a CR2025 Battery Over Other Options?

Choosing a CR2025 battery over other options is a practical decision based on its specific attributes. The CR2025 is a lithium cell known for its compact size, consistent voltage output, and long shelf life. These features make it suitable for various electronic devices like watches, calculators, and medical devices.

The definition of the CR2025 battery comes from the International Electrotechnical Commission (IEC), which classifies it as a 3-volt lithium coin cell battery. This classification ensures standardized sizes and specifications within the industry.

Several reasons support the preference for a CR2025 battery. Firstly, its size is small, making it ideal for devices with limited space. Secondly, it provides a stable voltage of 3 volts, which is crucial for the optimal functioning of sensitive electronic devices. Additionally, the CR2025 battery typically has a longer lifespan compared to alkaline batteries, offering better value for long-term use.

Technical terms relevant to the CR2025 battery include “lithium chemistry” and “coin cell design.” Lithium chemistry refers to the materials and electrochemical processes that enable the battery to store and release energy efficiently. Coin cell refers to the battery’s flat, circular shape, which is essential for fitting into compact devices.

The CR2025 battery operates through a chemical reaction between lithium and manganese dioxide. This reaction generates electrical energy when the battery is in use. In essence, lithium ions move between the anode and cathode, creating a flow of electrons that powers the device.

Certain usage conditions can impact battery performance. For instance, high temperatures can shorten the lifespan of a CR2025 battery, while too low temperatures may reduce its efficiency. In a remote control, for example, using the battery in extreme temperatures can lead to quicker depletion. Furthermore, devices with higher energy demands may drainage the CR2025 battery faster than those with lower energy needs.

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