Electronic Batteries Info

The following is a listing of the types of batteries found in computers to power the CMOS memory. The most common type of battery is the Coin cell battery (Lithium Battery). The coin cell battery is the size of a dime, as shown below.

Life time of a CMOS battery - The standard lifetime of a CMOS battery is around 10 Years; however, this amount of time can change depending on the use and environment that the computer resides.

Also known as a RTC/NVRAM or CMOS RAM, CMOS is short for Complementary Metal-Oxide Semiconductor. CMOS is an on-board semiconductor chip powered by a CMOS battery inside IBM compatible computers that stores information such as the system time and system settings for your computer. A CMOS is similar to the Apple Macintosh computer’s PRAM.