How to Replace CMOS Battery for Computer, PC, Desktop

This guide explains how to replace CMOS Battery for Computer, PC, Desktop, with clear steps, practical tips, and important checks before you begin.

How to identify the CMOS battery is quite simple, when the CMOS battery is exhausted, every time you turn off the computer and turn it back on, you will see the date and time of the computer is reset or in the boot screen will say: CMOS checksum error - Defaults loaded

Now you need to go to the computer repair shop to buy a new CMOS battery, the price ranges from 10 to 20 thousand depending on the type.

After having a CMOS battery, you remove the computer case and then look on the motherboard to find the location of the CMOS Battery similar to the picture below:

After determining the location of the CMOS battery, you just need to remove the old battery and insert a new battery to finish. After installing the battery, restart the computer and adjust the date and time to avoid errors when browsing the web.

So with just a few simple steps, we can replace CMOS battery for computers, hope you will find the article useful. Good luck!