Removing The Reserve Battery - Dell Precision M40 Service Manual

Palmrest Screws
8. Turn the computer over.
9. Use the pull loop to disconnect the palmrest flex cable from the touch-pad connector on the system board.
10. Carefully lift out the palmrest assembly.
Reserve Battery
NOTICE: Disconnect the computer and attached devices from electrical outlets and remove any installed batteries.
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer.
Reserve Battery
NOTICE: The reserve battery provides power to the computer's RTC and NVRAM when the computer is turned off. Removing the battery causes the
computer to lose the date and time information as well as all user-specified parameters in NVRAM. If possible, make a copy of this information before
you remove the reserve battery.

Removing the Reserve Battery

1. Follow the instructions in "Preparing to Work Inside the
2. Remove the keyboard.
3. Remove the hinge cover.
4. Remove the display assembly.
Computer."