2025 button cell battery

The "2025" battery is a type of button cell battery commonly used in a variety of small electronic devices. The "2025" designation refers to the battery's dimensions:

    20 mm in diameter
    2.5 mm in thickness

Characteristics:

    Chemistry: Button cell batteries are available in different chemistries, including lithium, silver oxide, and alkaline. The most common chemistry for a 2025 battery is lithium (Li), which is designated with a "CR" prefix (e.g., CR2025).
    Nominal Voltage: Most 2025 batteries have a nominal voltage of 3 volts, though some silver oxide versions may have slightly different voltages.
    Capacity: The capacity of a 2025 battery varies depending on the chemistry, but typically ranges from 150mAh to 250mAh.
    Self-discharge Rate: Lithium 2025 batteries have a low self-discharge rate and can retain their charge for many years when stored properly.

Applications:

    Watches: Many wristwatches and digital watches use 2025 batteries.
    Calculators: Small calculators often require a 2025 battery.
    Small Electronics: Key fobs, remote controls, and other small electronic devices may use 2025 batteries.
    Medical Devices: Some medical devices, such as glucose meters, also use 2025 batteries.


Handling and Safety:

    Handling: Button cell batteries should be handled carefully to avoid swallowing, especially by children. They should be kept out of reach of children.
    Disposal: Dispose of 2025 batteries according to local regulations, as they contain hazardous materials.

Replacing the Battery:

Replacing a 2025 battery is typically straightforward. You will need to open the battery compartment of the device, remove the old battery, and insert the new one, making sure the positive (+) and negative (-) sides are correctly aligned.
Purchasing:

You can find 2025 batteries at most electronics retailers, both online and in physical stores. If you need a specific brand or have a particular application in mind and need recommendations, let me know, and I can assist you further.
 

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