HP 3115m B2C43UT 11.6 B2C43UT#ABA manual RTC battery, Description Spare part number

RTC battery

Description	Spare part number
For use only on computer models with WWAN compatibility	664994-001
For use only on computer models without WWAN compatibility	599516-001

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 32).

5.Remove the service cover (see WLAN module on page 37).

Remove the RTC battery:

NOTE: Steps 1 and 2 apply to computer models with WWAN capability. See step 3 for RTC battery removal information on computer models without WLAN capability.

1.Disconnect the RTC battery cable (1) from the system board.

Component replacement procedures 41