HP RTC battery 848362-001 is a replacement service part for the real-time clock in the HP ZBook 17 G3 Mobile Workstation. It supplies the battery power used for low-level CMOS settings, including system time and hardware settings.
The assembly includes a connection cable for the system board and double-sided adhesive for attachment to the computer’s base enclosure. This is a small internal service component intended for the RTC system, rather than the main rechargeable laptop battery.