Rtc Battery - HP ProBook 645 G4 Maintenance And Service Manual

RTC battery

Description
RTC battery
Before removing the RTC battery, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the following components:
a. Bottom cover (see
b. Battery (see
c. Hard drive (see
d. Solid-state drive (see
e. WWAN module (see
f. Keyboard (see
g. Internal frame (see
h. System board (see
To remove the RTC battery:
▲ Disconnect the RTC battery cable from the system board (1), and then pry the RTC battery from the
system board (2).
Reverse this procedure to install the RTC battery.
Bottom cover on page
Battery on page 34)
Hard drive on page 37)
Solid-state drive on page
WWAN module on page
Keyboard on page 43)
Internal frame on page
System board on page
33)
39)
40)
47)
65)
Component replacement procedures
Spare part number
857798-001
69