CMOS Battery: Signs You Need to Replace It and How to Change It Explained

The CMOS battery usually lasts 2-3 years, influenced by usage and environment. Symptoms of failure include wrong system date and time, lost BIOS settings, and error messages. If you notice these issues, it’s time to replace the battery. This replacement helps maintain the accuracy and performance of your computer.

Replacing the CMOS battery is a straightforward process. First, ensure your computer is turned off and unplugged. Open the computer case to access the motherboard. Locate the round, coin-cell battery, usually found in a battery holder. Gently release the battery from its holder. Then, insert a new battery, ensuring the positive side faces up. Close the computer case and plug it back in. Power on your computer, and enter the BIOS settings to adjust the date and time.

Understanding how to replace the CMOS battery is essential for maintaining your computer’s functionality. Next, we will explore the different types of CMOS batteries available, their expected lifespans, and tips for ensuring you choose the right one for your system.

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