Lenovo Battery RTC CR2032 w/ cable

Lenovo 01LW332 RTC BAT RTC BATTERY is a coin-type RTC battery that maintains a computer’s real-time clock and BIOS settings while the main power source is off. It is a replacement part for compatible Lenovo systems and serves a different purpose from a laptop’s main battery: it preserves the clock and saved configuration when the computer is unpowered.

The listed electrical specifications are 3 V nominal voltage and 220 mAh charge capacity. They help identify the matching part during service. The listing describes it as a coin-type battery for RTC and CMOS backup.

For maintenance or repair, it can replace a depleted RTC battery in a compatible Lenovo system where part 01LW332 is specified. Its role is limited to maintaining the motherboard clock and BIOS settings without the main power source; it is not intended to run the computer.