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RTC battery
Description Spare part number
RTC battery 481089-001
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 44), and then remove the following components:
a. Memory module compartment cover (see
Expansion memory module on page 48)
b. Wireless module compartment cover (see
WLAN module on page 53)
c. Switch cover and keyboard (see
Switch cover and keyboard on page 65)
Remove the RTC battery:
▲
Use a flat-bladed, non-conductive tool to remove the RTC battery from the socket.
Reverse this procedure to install the RTC battery.
Component replacement procedures 69