CMOS battery
Motherboard Battery / CMOS battery - This battery on the motherboard is used to preserve the configuration memory (also called CMOS) and the computer clock.
Most manufacturers do not list the exact type and model of your CMOS battery. It is recommended that, once you have located the battery, write down all information about the battery (Voltage, chemistry, wiring, and packaging). If possible, remove the battery and take it to the retail location.
The battery type CR2032 button cell is the most common CMOS battery.
If your computer is using a coin cell battery, removing the battery is relatively simple. Use your fingers to grab on the edge of the battery and pull it up and out of the socket holding it in place. Some motherboards have a clip holding the battery down.
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