RTC battery
Description Spare part number
RTC battery 507707-001
Before removing the real-time clock (RTC) battery:
1. Shut down the device. If you are unsure whether the device is off or in Hibernation, turn the
device on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the device.
3. Disconnect the power from the device by first disconnecting the power cord from the AC outlet
and then disconnecting the AC adapter from the device.
4. Remove the battery (see
Battery on page 38).
5. If your device has WWAN capability, remove the SIM (see
SIM on page 39).
6. Remove the Keyboard (see
Keyboard on page 43).
7. Remove the Hard drive (see
Mass storage devices on page 50).
8. Remove the Top cover (see
Top cover on page 56).
Remove the RTC battery:
1. Disconnect the RTC battery cable (1) from the system board.
2. Detach the RTC battery (2) from the system board.
NOTE: The RTC battery is attached to the system board with double-sided tape.
Reverse this procedure to install the RTC battery.
62 Chapter 4 Removal and replacement procedures
