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A 3v CR2025 Lithium Coin Cell Battery is a dry button cell battery commonly used in portable electronic devices.
A 3v CR2025 Lithium Coin Cell Battery measures 20.0 mm in diameter and 2.5mm in height. It has a Manganese dioxide positive electrode, and a Lithium negative electrode, with an organic electrolyte. It has a nominal voltage rating of 3 Volts.
It is commonly used in quartz watches, hand-held calculators, small PDA devices, and computer motherboards, where it is used as a backup, to power the storage of various computer settings (such as the time of day clock and BIOS configuration data) when the main power is turned off.
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