Rtc Battery - HP 255 G4 Maintenance And Service Manual

RTC battery

Description
RTC battery
Before removing the RTC battery, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4. Remove the battery (see
5. Remove the optical drive (see
6. Remove the bottom cover (see
To remove the RTC battery:
▲ Using a thin tool or screwdriver, disengage the battery from the socket (1), and then remove the battery
(2).
Reverse this procedure to install the RTC battery.
Battery on page 28).
Optical drive on page
Bottom cover on page
29), if installed.
35).
Component replacement procedures
Spare part number
759981-001
43