How Long Does a CMOS Battery Last
The CMOS battery supplies power to the CMOS chip so that the system can remember all your BIOS configurations even after the system turns off. One major variable that determines the lifespan of a CMOS battery is its current voltage. The CMOS battery becomes useless once it reaches a point where the battery fails to supply the minimum requiredvoltage for the CMOS chip. Once the battery dies, any data saved on the CMOS chip will be set to its default value....