RTC battery
Description Spare part number
RTC battery (includes cable and double-sided adhesive) 922939-001
Before removing the RTC battery, follow these steps:
1. Turn o the computer. If you are unsure whether the computer is o 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 bottom cover (see Bottom cover on page 36).
5. Disconnect the battery (see Battery on page 37).
Remove the RTC battery:
1. Disconnect the RTC battery cable (1) from the system board.
2. Detach the RTC battery (2) from the base enclosure. (The RTC battery is attached to the base enclosure
with double-sided adhesive.)
3. Remove the RTC battery and cable.
Reverse this procedure to install the RTC battery.
48 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts
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