Rtc Battery - HP EliteBook 820 G2 Maintenance And Service Manual

RTC battery

Description
RTC battery (includes cable and double-sided adhesive)
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 service cover (see
5. Remove the battery (see
6. Remove the keyboard (see
Remove the RTC battery:
1. Disconnect the RTC battery cable (1) from the system board.
2. Detach the RTC battery (2) from the top cover. (The RTC battery is attached to the top cover with
double-sided adhesive.)
3. Remove the RTC battery and cable.
Reverse this procedure to install the RTC battery.
66 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
Service cover on page
Battery on page 48).
Keyboard on page 60).
46).
Spare part number
702853-001