CR2032 Battery: Ultimate Guide to Lithium Coin Cell Power
What are CR2032 Batteries?
The CR2032 battery is a non-rechargeable (primary) battery that is widely used in today's market. It is a coin-cell battery that employs lithium chemistry. These batteries are utilized in a diverse array of applications and are readily available from numerous retailers. The majority of prominent battery brands, including Duracell, Energizer, Panasonic, Philips, Maxell, Murata (formerly Sony), Renata, and others, offer models of the CR2032 battery, both as a bare cell and with various attachment options.
Technical Specifications Of The CR2032 Battery
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CR2032 Battery Nominal Voltage: |
3 Volts |
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Capacity ≈ |
235 mAh |
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Operating Temperature: |
0°C – 60°C |
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Height: |
3.2 mm |
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Width (Diameter): |
20 mm |
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Chemistry: |
Lithium Coin |
The following is an overview of lithium coin batteries: Lithium coin cell batteries are typically identified by a CR designation followed by a set of numbers. The "C" in CR indicates that the battery employs a lithium chemical composition. The R indicates that the battery is round in shape. The first two digits indicate the diameter of the battery, while the last two digits provide the height. By following this method, it is easy to ascertain that a CR2032 battery is a lithium-based battery with a round shape, designated as (C) for lithium chemistry, with a diameter of (20) 20 millimeters and a height of (32) 3.2 millimeters. This classification applies to the majority of coin and button cell batteries. However, it should be noted that there are some exceptions, such as the CR2 or CR123A batteries, which are considered lithium cylindrical batteries.
What Battery Is Equivalent To The CR2032 Battery?
The CR2032 battery has several equivalent models, including:
- BR2032: Same dimensions as CR2032, but performs better in low-temperature environments, commonly used in outdoor sensors and car keys.
- DL2032: Manufactured by Duracell, known for high quality and long lifespan.
- ECR2032: Produced by Energizer, renowned for reliability and durability.
- KCR2032: Made by Panasonic, a leading global electronics manufacturer.
- L2032: Another common alternative with the same specifications.
It should be noted that other lithium coin cell batteries may have similar voltage, diameter, or height as the CR2032 battery, but may not be compatible with devices that require a CR2032. For instance, a CR2016 has the same diameter and voltage but half the height, while a CR1632 has the same height and voltage but a smaller diameter, rendering them incompatible with devices designed for CR2032 batteries.
How Long Do a CR2032 Batteries Last?
The lifespan of a battery can be influenced by a number of factors, including the quality of the materials used, storage conditions, duration of storage, humidity levels, physical damage, and temperature. It is recommended that the battery be made of high-quality materials and stored in a climate-controlled and dry area with no physical damage. Energizer asserts that its lithium coin cell batteries have a shelf life of up to 10 years when stored correctly. With regard to service life, this will depend significantly on the application in question. A CR2032 battery in a car key fob may last up to four to five years before requiring replacement, given the intermittent nature of its use. A more active device, such as the new Apple AirTag, which allows constant tracking of objects, will only last approximately one year.
What applications utilize a CR2032 battery?
The CR2032 battery is used in a wide variety of devices and applications, including computer motherboards, car key fobs, watches, calculators, personal digital assistants (PDAs), electronic organizers, garage door openers, toys, games, door chimes, pet collars, light-emitting diode (LED) lights, sporting goods, pedometers, calorie counters, stopwatches, and medical devices.
Selecting an Appropriate CR2032 Alternative Battery
When selecting an equivalent battery to the CR2032, please consider the following:
- Voltage: Ensure the battery voltage matches the CR2032, which is 3V.
- Size: The CR2032 has a diameter of 20mm and a thickness of 3.2mm. It is essential to ensure that the equivalent battery has the same dimensions.
- Capacity: Batteries with a higher capacity have a longer lifespan.
- Brand: Opt for well-known brands like Duracell, Energizer, and Panasonic for quality and reliability.
By understanding the specifications and equivalents, you can identify the appropriate CR2032 battery or its equivalent for your device, ensuring stable operation.
