Specifications

RTC battery
Description Spare part number
RTC battery 449137-001
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. Remove the battery (see
Battery on page 32).
5. Remove the memory module/wireless module compartment cover (see
WLAN module
on page 41).
6. Remove the hard drive compartment cover (see
Hard drive on page 46).
To remove the RTC battery:
▲
Insert a small tool between the battery and the clip that secures it (1), pry the battery up to
disengage it from the socket, and then remove the battery (2) from the computer.
Reverse this procedure to install the RTC battery.
48 Chapter 4 Removal and replacement procedures