Before removing the real-time clock (RTC) battery, follow these steps:
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.
Disconnect all external devices connected to the device.
Disconnect the power from the device by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the device.
Remove the battery (see
Remove the following components:
Hard drive or solid-state drive (see
Top cover (see
Remove the RTC battery:
Disconnect the RTC battery cable (1) from the system board.
Detach the RTC battery (2) from the system board, and then remove the RTC battery.
Reverse this procedure to install the RTC battery.
Battery on page
Keyboard on page
Top cover on page
The RTC battery is attached to the system board with double-sided tape.
Mass storage devices on page
Component replacement procedures
Spare part number