RTC battery
Description Spare part number
RTC battery (includes cable, pad, and double-sided adhesive) 917056-001
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 keyboard/top cover (see Keyboard/top cover on page 18).
5. Remove the battery (see Battery on page 27).
Remove the RTC battery:
1. Disconnect the RTC battery cable (1) from the system board.
2. Detach the RTC battery (2) from the bottom cover. (The RTC battery is secured to the bottom cover with
double-sided adhesive.)
3. Remove the RTC battery.
Reverse this procedure to install the RTC battery.
Component replacement procedures 31
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