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RTC battery
Description Spare part number
RTC battery 739054-001
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. Disconnect the tablet from the keyboard dock (see
Releasing the tablet from the keyboard dock
on page 32).
5. Remove the display rear cover (see
Display rear cover on page 45).
6. Disconnect the battery cable (see
Battery cable on page 46).
Remove the RTC battery:
1. Use a screwdriver to loosen the battery from the socket (1).
2. Lift the battery from the socket (2).
Reverse this procedure to install the RTC battery.
54 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts