A flathead screwdriver is usually used to slowly lift the button cell from the motherboard. This is how we can check the status of the CMOS battery in Linux.Ĭan you test c mos battery status in linux? You may find a button-type CMOS battery on the BIOS of your computer or laptop. We can see that the capacity of the battery is 100%. The output of the command will be in percent. We can see that the current charge of the battery is 976mAh.įinally, we need to check the capacity of the battery with the following command: The output of the command will be in milliamp hours (mAh). Now, we need to check the current charge of the battery with the following command: We can see that the voltage of the battery is 12V. The output of the command will be in millivolts. The next thing we need to do is to check the voltage of the battery with the following command: Here, we can see that the battery is present and it is charging. Now, we need to check the battery status with the following command: We can see that the battery is present and it is charged at 100%. This will give us information about the first battery installed in the system. The first thing we need to do is open a terminal and issue the following command: In this article, we will learn how to check the status of the CMOS battery in Linux. If the battery dies, the BIOS settings will be reset to defaults and the computer will not be able to boot. As most of us know, the CMOS battery is used to power the BIOS settings in a computer.
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