Despite their popularity, many people are not familiar with how long CR2032 batteries last, and when they should be replaced. The lifespan of a battery depends on several factors, such as usage, storage conditions, and temperature.
Generally, CR2032 batteries are expected to last anywhere from 2-10 years depending on usage. Factors such as frequent use, exposure to high temperatures, humidity levels, and poor storage conditions may impact the battery’s lifespan. Users of small electronic devices are advised to be mindful of these factors and watch out for signs of a weak battery which include reduced power, slow response, and decreased sensitivity [1].
It is, therefore, essential to understanding how long your CR2032 battery will last to avoid unnecessary battery replacements and also to ensure that the device it powers is always functional.
In this article, we explore the factors that influence the lifespan of CR2032 batteries, the warning signs that indicate when a battery is weak, and how to take care of your batteries to extend their lifespan.
What Are CR2032 Batteries?
These batteries are composed of a cathode of manganese dioxide and an anode of lithium. The CR2032 battery can be found in most retail outlets and online stores, and it is widely used due to its small size and high energy capacity.
The CR2032 battery is also known for its reliability and durability, making it a popular choice for various devices that require long-lasting, reliable power [2].
What Uses a CR2032 Battery?
The CR2032 battery is a type of coin cell battery that is commonly used to power small electronic devices such as calculators, remote controls, key fobs, and more. It is a non-rechargeable primary battery that utilizes lithium chemistry, with a nominal voltage of 3V, a diameter of 20mm, and a thickness of 3.2mm.
Some of the common uses of CR2032 batteries include:
- Watches: Many wristwatches and small clocks use CR2032 batteries to power their timekeeping functions;
- Calculators: Many pocket calculators rely on CR2032 batteries for their power source;
- Remote controls: Some remote controls, particularly those used for car key fobs, use CR2032 batteries;
- Keyboards and mice: Some wireless keyboards and mice use CR2032 batteries to operate wirelessly;
- Fitness trackers: Many fitness trackers and activity monitors use CR2032 batteries to power their tracking functions;
- Medical devices: Some medical devices, such as glucose meters and heart rate monitors, use CR2032 batteries for power;
- Car alarms: Some car alarm systems utilize CR2032 batteries in their key fobs or control panels;
- Electronic toys: Certain electronic toys, such as handheld games or small interactive devices, may use CR2032 batteries;
- Motherboards and computer peripherals: CR2032 batteries are commonly used on computer motherboards to power the CMOS (complementary metal-oxide-semiconductor) memory that stores system settings. They are also used in some computer peripherals, such as wireless keyboards or mice;
- Backup power supplies: CR2032 batteries are often used as backup power sources for various devices, such as electronic locks, security systems, or small backup clocks;
CR2032 Specifics:
Terminal Features
The CR2032 battery features two terminals, a positive (+) terminal, and a negative (-) terminal. These terminals are typically located on the top surface of the battery, allowing for easy installation and connection in various electronic devices. The positive terminal is usually marked with a “+” sign or a raised bump, while the negative terminal is typically flat or marked with a “-“ sign [3].
Voltage
The CR2032 battery has a nominal voltage of 3 volts. This voltage remains relatively stable throughout its discharge cycle, providing a consistent power supply to devices that require this type of battery. The 3-volt voltage is suitable for powering a wide range of small electronic devices efficiently.
Diameter
The diameter of a CR2032 battery is approximately 20 millimeters, which is where it gets its name – 20mm in diameter and 3.2mm in height. This compact size makes it compatible with many devices that require a button cell battery, allowing for easy replacement or installation.
Capacity
The capacity of a CR2032 battery refers to its ability to store and deliver electrical energy. Typically, the CR2032 battery has a capacity ranging from around 200 to 240 milliampere-hours (mAh). The higher the capacity, the longer the battery will last before requiring replacement. However, it’s important to note that the actual battery life will depend on factors such as the power consumption of the device it is used in.
Operating Temperature
The CR2032 battery is designed to operate within a specific temperature range. Generally, it can function effectively in temperatures ranging from -20 to 70 degrees Celsius (-4 to 158 degrees Fahrenheit). It is essential to ensure that the operating temperature of the device using the CR2032 battery falls within this range to maintain optimal performance and longevity.
The Benefits Of the CR2032 Battery:
- Compact Size: The CR2032 battery is small and lightweight, making it ideal for devices with limited space or those that require a slim power source. Its compact size allows for easy integration into various applications without adding excessive bulk or weight;
- High Voltage: The CR2032 battery operates at a nominal voltage of 3 volts, which is higher than many other button cell batteries. This higher voltage enables efficient power delivery, ensuring reliable performance in devices that require a stable and consistent power supply;
- Long Shelf Life: The CR2032 battery has an impressive shelf life, retaining its capacity for a significant period even when not in use. This makes it suitable for devices that may have intermittent usage or require long-term storage without the need for frequent battery replacements;
- Wide Operating Temperature Range: The CR2032 battery is designed to function within a broad temperature range, typically from -20 to 70 degrees Celsius (-4 to 158 degrees Fahrenheit). This wide operating temperature range allows it to perform reliably in various environmental conditions, making it suitable for both indoor and outdoor applications;
- Easy Availability: The CR2032 battery is readily available in the market, making it convenient for users to find replacements when needed. It is widely stocked by retailers and available from multiple manufacturers, ensuring accessibility and compatibility with a broad range of devices;
- Versatile Applications: The CR2032 battery is utilized in numerous electronic devices across various industries. From watches and calculators to remote controls, fitness trackers, and medical devices, the CR2032 battery offers versatile power solutions. Its compatibility with diverse applications makes it a reliable choice for different consumer electronics, ensuring its continued relevance;
- Easy to Install: The button cell design of the CR2032 battery allows for easy installation and replacement. The positive and negative terminals are clearly marked, enabling users to correctly align the battery in their devices without confusion. This user-friendly design simplifies the maintenance and upkeep of devices that rely on CR2032 batteries;
- Safe and Environmentally Friendly: The CR2032 battery is generally considered safe for use in electronic devices. It is designed with built-in safety features to prevent overheating, leakage, or other potential hazards. Additionally, CR2032 batteries are commonly available in environmentally friendly options, such as mercury-free or low-mercury versions, reducing their impact on the environment [4];
Disadvantages Of the CR2032 Battery:
- Limited Capacity: The CR2032 battery has a relatively low capacity compared to larger batteries. This means it may not be suitable for devices with high power demands or those that require long-term continuous use. Devices that consume a significant amount of energy may require more frequent battery replacements with CR2032 batteries;
- Non-Rechargeable: The CR2032 battery is a non-rechargeable or primary battery, which means it cannot be recharged once it is depleted. Once the battery loses its charge, it needs to be replaced with a new one. This can result in ongoing costs and potential waste if the batteries are not properly disposed of or recycled;
- Limited Voltage Compatibility: While the CR2032 battery has a nominal voltage of 3 volts, some devices may require higher or lower voltages for optimal performance. In such cases, additional circuitry or voltage regulators may be needed to ensure compatibility, which can increase the complexity and cost of the device design;
- Size Constraints: The compact size of the CR2032 battery, while advantageous in many cases, can also be a limitation. The small form factor may restrict the amount of energy that can be stored, resulting in shorter battery life compared to larger batteries. Devices that require more power may need to consider alternative battery options;
- Disposal and Environmental Impact: Like other batteries, the CR2032 battery requires proper disposal to minimize environmental impact. If not disposed of correctly, the battery’s chemicals can be harmful to the environment. It’s important to follow local regulations for battery recycling or disposal to reduce pollution and promote sustainability;
- Limited Power Delivery: The CR2032 battery may not be suitable for devices that require high instantaneous power output or those that have intermittent power demands. It is designed to provide a steady power supply over a longer duration, but it may struggle to meet sudden high-power requirements;
What Battery Is Equivalent To The CR2032 Battery?
While there are other batteries with similar dimensions, it’s important to note that an exact equivalent to the CR2032 may not exist due to differences in voltage, capacity, or other specific characteristics.
However, some batteries have comparable dimensions and similar specifications to the CR2032 battery. Here are a few examples:
- BR2032: The BR2032 battery is a lithium coin cell battery that shares the same dimensions (20mm diameter and 3.2mm height) as the CR2032. It also operates at 3 volts. The main difference is that the BR2032 offers a higher capacity and is typically used in applications that require a longer battery life;
- DL2032: The DL2032 battery is another lithium coin cell battery that is often considered interchangeable with the CR2032 due to its identical dimensions and voltage rating of 3 volts. While it may have a slightly different capacity, it can often be used as a replacement for the CR2032 in various devices;
- ECR2032: The ECR2032 battery is a lithium manganese dioxide coin cell battery that is commonly used as an alternative to the CR2032. It shares the same physical dimensions and voltage rating of 3 volts, making it compatible with many devices that require a CR2032 battery;
How Long Do CR2032 Batteries Last?
The lifespan of a CR2032 battery can vary depending on various factors such as the device it is used in, the power consumption of the device, and the operating conditions. However, on average, a CR2032 battery can last between 2 to 10 years.
The capacity of a CR2032 battery typically ranges from around 200 to 240 milliampere-hours (mAh). This capacity determines the amount of energy the battery can store and deliver. The power consumption of the device, measured in milliamps (mA), determines how quickly the battery is drained.
To estimate the lifespan of a CR2032 battery in a particular device, you can divide the battery’s capacity (in mAh) by the device’s average power consumption (in mA). For example, if a device consumes an average of 1 mA of power and the CR2032 battery has a capacity of 220 mAh, the battery could last for approximately 220 hours or 9.17 days [5].
It’s important to note that this is a simplified calculation and actual battery life can vary significantly depending on usage patterns and operating conditions. Factors such as the frequency and duration of device usage, temperature fluctuations, and the presence of power-saving features in the device can impact battery life.
Furthermore, as a battery approaches the end of its lifespan, its voltage output gradually decreases, and the device may experience reduced performance or malfunction. In such cases, it is recommended to replace the battery to ensure optimal device operation.
To maximize the lifespan of a CR2032 battery, it is advisable to store it in a cool, dry place when not in use and to avoid exposure to extreme temperatures. Additionally, turning off devices when not in use, minimizing unnecessary power consumption, and utilizing power-saving features can help prolong the battery life.
Are CR2032 Batteries Rechargeable?
No, CR2032 batteries are not rechargeable. They are classified as primary or non-rechargeable batteries. Once a CR2032 battery has been depleted and can no longer provide power, it needs to be replaced with a new battery.
Rechargeable batteries, on the other hand, are designed to be recharged multiple times by applying electrical energy to them. They are commonly referred to as secondary batteries. Examples of rechargeable batteries include lithium-ion (Li-ion) and nickel-metal hydride (NiMH) batteries.
It’s important to note that attempting to recharge a non-rechargeable CR2032 battery can be dangerous and may result in leakage, overheating, or even rupture of the battery, posing safety risks. Therefore, it is recommended to use only non-rechargeable CR2032 batteries and dispose of them properly when they are no longer usable.
If you require a rechargeable battery for your application, you will need to look for alternative options that are specifically designed for rechargeability, such as rechargeable coin cell batteries or other rechargeable battery types that meet your device’s requirements.
How to Replace a CR2032 Battery?
Replacing a CR2032 battery is a relatively simple process. Here’s a step-by-step guide on how to replace a CR2032 battery:
- Prepare the necessary tools: You may need a small flat-head screwdriver or a coin with a flat edge, depending on the design of the battery compartment;
- Identify the battery compartment: Locate the device’s battery compartment. This can typically be found on the back cover, underside, or within a designated compartment on the device;
- Remove the battery cover: If there is a cover or panel securing the battery compartment, use a screwdriver or your fingers to remove it. Some devices may have a small latch or release mechanism that needs to be slid or pressed to open the compartment;
- Remove the old battery: Once the battery compartment is accessible, identify the CR2032 battery and carefully remove it. If necessary, use a small tool or your fingers to gently pry the battery out;
- Observe the battery orientation: Take note of the battery’s positive (+) and negative (-) terminals. Pay attention to how the old battery is positioned or any markings indicating the correct orientation;
- Insert the new battery: Take a fresh CR2032 battery and align it correctly in the compartment, matching the positive and negative terminals with the markings or orientation of the old battery;
- Secure the battery: If there was a battery cover or panel, reattach it securely to the device. Ensure that it is properly aligned and fastened to prevent any movement or accidental dislodging of the battery;
- Test the device: Close any compartments or covers and turn on the device to check if it powers up properly. If the device has multiple functions or settings that rely on the battery, ensure that they are functioning correctly [6];
Are CR2032 and CR2025 Batteries Interchangeable?
While CR2032 and CR2025 batteries may appear similar in terms of size and appearance, they are not interchangeable in most cases. There are important differences between the two batteries that can affect their compatibility with specific devices.
Here’s what you need to know:
- Size: The CR2032 and CR2025 batteries have different dimensions. The CR2032 battery has a diameter of approximately 20mm and a thickness of 3.2mm, while the CR2025 battery has a diameter of approximately 20mm and a thickness of 2.5mm. The slight difference in thickness can make it difficult to properly fit one battery into a compartment designed for the other;
- Capacity: The CR2032 battery generally has a higher capacity compared to the CR2025 battery. The CR2032 typically has a capacity of around 200-240mAh, while the CR2025 has a capacity of around 150-170mAh. Using a lower-capacity battery may result in shorter battery life in devices that have higher power demands;
- Voltage: Both the CR2032 and CR2025 batteries have a nominal voltage of 3 volts, which means they provide the same voltage output. However, the CR2032 battery has a slightly higher maximum voltage, which can be important for devices that require that specific voltage level;
FAQ
1. Do CR2032 batteries expire?
Yes, like all batteries, CR2032 batteries have a finite lifespan and will eventually expire. The lifespan of CR2032 batteries varies depending on usage, storage conditions, and temperature. Generally, these batteries last between 2-10 years [7].
2. How long does it take for CR2032 to expire when left in a device?
If the CR2032 is left in a device, its lifespan will depend on the amount of power the device requires, and how often the device is used. If the device is used frequently and draws more power, the battery will expire faster than if it were used sparingly.
3. Can you use CR2032 batteries after they expire?
It’s not recommended to use CR2032 batteries after they have expired as they may leak or cause damage to the device. It’s best to replace the battery with a new one once it has expired.
4. How to prolong the life of CR2032 batteries?
You can extend the life of CR2032 batteries by storing them in a dry and cool environment, away from direct sunlight or heat. Also, ensure that the batteries are installed correctly in the device, and the device is turned off when not in use to preserve battery life.
5. What is the lifespan of a CR2032 battery?
The lifespan of a CR2032 battery typically ranges between 2-10 years depending on usage, storage conditions, and temperature. The battery’s lifespan may be shorter or longer depending on the device it powers and how often it is used.
6. Can CR2032 batteries go bad?
Yes, CR2032 batteries can go bad due to several factors, including usage, storage conditions, and temperature. Expired or damaged batteries may leak and can cause damage to the device in which they are installed.
7. Is it okay to use a 2032 battery instead of 2025 one?
While both CR2032 and CR2025 batteries are lithium coin cell batteries, they have different dimensions and voltages. Therefore, it’s not recommended to use a CR2032 battery instead of a CR2025 battery or vice versa, as doing so may damage the device or cause it to malfunction.
8. What is the best longest-lasting CR2032 battery?
Several factors affect the lifespan of CR2032 batteries, including the brand and quality of the battery. However, some popular brands that offer long-lasting CR2032 batteries include Energizer, Duracell, and Panasonic.
9. Why is CR2032 expensive?
The cost of CR2032 batteries can vary depending on several factors, including the brand, quantity, and quality. Generally, rechargeable batteries are more expensive than non-rechargeable batteries due to their additional features and technology.
10. Which battery lasts longer – AAA or CR2032?
CR2032 and AAA batteries are used for different purposes, and their lifespan can vary depending on usage and storage conditions. Generally, AAA batteries have a longer lifespan than CR2032 batteries due to their higher capacity and larger size [8].
11. What is the best price for a 3V lithium battery CR2032?
The price of CR2032 batteries can vary depending on the brand, quantity, and quality. However, they are generally available at a reasonable price and can be found online or in most retail stores. The best way to find the best price is to compare prices from multiple sources before making a purchase.
12. What are 2032 batteries good for?
2032 batteries or CR2032 batteries are commonly used for low-power devices such as car key remotes, calculators, digital watches, small toys, medical devices, and other small electronic devices.
13. Is there a difference between CR2032 and just 2032 batteries?
No, there is no difference between CR2032 and 2032 batteries. CR refers to the chemical composition of the battery, which is lithium manganese dioxide, and the numbers denote the battery’s diameter and thickness.
14. How do you store CR2032 batteries?
CR2032 batteries should be stored in a cool and dry place away from direct sunlight or heat sources. It’s also recommended to store them in their original packaging or a battery case to prevent them from coming into contact with metal objects or each other, which can cause them to discharge.
15. What is the negative side of the 2032 battery?
The negative side of the CR2032 battery is typically indicated by a minus (-) sign on the surface of the battery. In some cases, the edge of the negative side may also be slightly raised, making it easier to identify.
16. Do “dollar-store batteries” last as long?
The lifespan of dollar-store batteries may vary depending on the brand and quality. Generally, these batteries may not last as long as more expensive brands and may leak or cause damage to the device in which they are installed.
17. What voltage should CR2032 be when empty?
The voltage of an empty CR2032 battery should be around 2.0 volts or below. When the voltage drops below 2.0 volts, the battery may not be able to power the device effectively and should be replaced.
18. Can CR2032 be recharged?
No, CR2032 batteries are not designed to be recharged, and attempting to recharge them could cause them to explode or leak dangerous chemicals. It’s best to dispose of empty batteries responsibly and replace them with new ones.
19. How long do 3V lithium batteries last?
The lifespan of 3V lithium batteries, including CR2032 batteries, can vary depending on usage, storage conditions, and temperature. Generally, these batteries can last for around 2-10 years.
20. Do 3V lithium batteries expire?
Yes, like all batteries, 3V lithium batteries including CR2032 batteries, have a finite lifespan and will eventually expire. The lifespan of these batteries depends on factors such as usage, storage conditions, and environment.
21. Who makes the best CR2032?
It is subjective to determine who makes the best CR2032 battery as it depends on the specific use case and the user’s needs. However, some popular and reputable brands for CR2032 batteries include Panasonic, Energizer, Duracell, Varta, and LiCB.
22. How many hours does a 3-cell battery last?
The number of hours a 3-cell battery lasts depends on various factors such as the battery’s capacity, the device it is powering, the usage pattern, and more. It’s difficult to provide a general answer without more information.
23. Do 10-year batteries actually last 10 years?
10-year batteries are designed to last 10 years based on the manufacturer’s specifications and under optimal storage and usage conditions. However, factors such as usage, storage temperature, and other environmental factors can affect the battery’s lifespan.
24. Do batteries go bad if not used?
Yes, batteries can go bad if not used for an extended period, as they slowly self-discharge even when not in use. The self-discharge rate can vary based on the type of battery and its age, storage temperature, and other factors.
25. Do laptops use CR2032 batteries?
Yes, some laptops use CR2032 batteries as backup batteries for the Real-Time Clock (RTC) chip, which maintains accurate time even when the laptop is turned off.
26. What is the minimum temperature for CR2032?
The minimum temperature for CR2032 batteries depends on the specific manufacturer’s specifications. However, in general, it’s recommended to store them at temperatures between -20°C and 25°C to ensure optimal performance and prevent leakage or other issues. Exposing the battery to temperatures outside of this range could cause permanent damage to the battery or reduce its lifespan.
Useful Video: How long should a CR2032 battery last?
References
- https://www.microbattery.com/blog/post/battery-bios:-everything-you-need-to-know-about-the-cr2032-battery
- https://www.uetechnologies.com/how-long-does-a-cr2032-battery-last/
- https://techoverflow.net/2021/07/09/what-is-the-typical-shelf-life-of-a-cr2032-coin-cell-battery/
- https://electronicguidebook.com/do-cr2032-batteries-expire/
- https://electronics.stackexchange.com/questions/509161/how-long-will-a-cr2032-battery-take-to-exhaust-powering-two-5mm-blue-leds
- https://osgamers.com/frequently-asked-questions/how-long-does-cr2032-last
- https://www.expertreviews.co.uk/technology/1416837/best-cr3032-battery
- https://aussiebattery.com.au/what-is-a-cr2032-battery-are-cr2032-rechargeable-how-long-does-a-cr2032-battery-last/