The term “2032 coin cell” refers to a CR2032 battery , which is a type of non-rechargeable lithium button or coin cell battery widely used in small electronic devices.
Here’s a breakdown of what that entails:
- Size and Shape: It is a small, flat, round battery with a diameter of 20mm and a thickness of 3.2mm. The “2032” in its name directly reflects these dimensions.
- Chemistry and Voltage: It’s a lithium manganese dioxide battery (Li/MnO2), providing a nominal voltage of 3 volts.
- Capacity: The capacity typically ranges from 220mAh to 245mAh, depending on the manufacturer and the discharge rate.
- Key Features:
– Long Shelf Life: CR2032 batteries are known for their low self-discharge rate, allowing them to retain most of their charge for up to 10 years in storage.
– Stable Voltage: They provide a consistent 3V output throughout their discharge cycle.
– Wide Operating Temperature: Many are designed to perform well in a wide range of temperatures, typically from -30°C to 60°C (-22°F to 140°F).
- Common Applications:
– Watches and Clocks
– Calculators and PDAs
– Computer motherboards (for CMOS/BIOS memory backup)
– Automobile Key Fobs and Remote Controls
– Electronic Organizers
– Medical Devices (e.g., glucometers, thermometers)
– Fitness Appliances (e.g., pedometers, stopwatches)
– Toys and Games
– Other Small Electronics (e.g., LED lights, digital voice recorders, door chimes)
- Alternatives and Equivalents: While “CR2032” is the most common designation, batteries with similar specifications may be sold under different names by other manufacturers, such as DL2032 (Duracell), ECR2032 (Energizer), KCR2032 (Kodak), and BR2032. These are generally interchangeable with the CR2032 as long as the voltage and dimensions are the same.
- Safety Features: Many manufacturers incorporate child safety features into the packaging or the batteries themselves (e.g., a bitter coating to deter swallowing) to address concerns about potential ingestion, [according to Home Depot].
- Disposal: These batteries should be disposed of properly through battery recycling programs or at designated drop-off locations to minimize environmental impact.
What is a 2032 coin cell?
I can help with that. The ubiquitous CR2032 battery is a coin-shaped three-volt lithium-ion battery. This class of battery has a diameter of 20 mm and a thickness of 3.1 mm, with some slight variations.
How long does a CR2032 coin cell battery last?
Energizer claims that their lithium coin cell batteries have up to 10 years of shelf life when properly stored. As far as service life this will depend greatly on the application. A CR2032 battery in a car key fob may last up to 4-5 years before needing replacement as the use of the battery is very intermittent.
What is the difference between 2025 and 2032 coin cell?
Great question! When deciding between them, the only differences to keep in mind are capacity, thickness, and usage suitability. The CR2032, with its higher capacity, is ideal for devices requiring longer battery life, while the thinner CR2025 may work well in small or low-drain items.
What is the substitute for a 2032 lithium battery?
The CR2025 battery is an extremely common lithium coin cell battery and is used in similar amounts and in similar applications as the CR2032. The CR2025 is slightly better suited for use in products that have less available mounting space than those that would use a CR2032.