Cmos Battery

The CMOS (Complementary Metal-Oxide-Semiconductor) battery is a small, typically coin-shaped battery found on the motherboard of most computers. It powers the CMOS chip, which stores critical system settings such as the date, time, and BIOS configuration, even when the computer is turned off or unplugged. Without a working CMOS battery, your computer may lose its BIOS settings, causing issues with booting and other startup processes.

Key Features of a CMOS Battery

• Function: Powers the CMOS chip to maintain system settings like date, time, and BIOS configurations when the computer is off
• Type: Usually a CR2032 lithium battery, though some systems may use other models
• Lifespan: Typically lasts 3-5 years, depending on usage and environmental factors
• Replacement: Easily replaceable on most motherboards, usually requires opening the computer case
• Compatibility: Found in desktops, laptops, and some specialized devices that rely on system memory