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How do I replace the Bios battery in a Dell Precision 4600 Laptop. Which videos will show me the correct disassembly procedures? Can you supply the correct part no.?

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Do you mean the Dell Precision M4600 mobile workstation. According to the User Manual, the coin cell battery is a 3V CR2032 lithium ion cell (page 117).

To replace this battery, turn off and close the laptop and remove the power cable and all external cables, docks and accessories. Make sure that the work surface is clean. Turn the system over and remove the main battery by sliding the release latch towards the center of the computer. Turn the system right side up and open the display. Press the power button to ground the laptop and drain any capacitors. Remove any cards from the card slots. Close the display again and turn the laptop upside down. Touch bare metal on the system to ground yourself relative to the computer.

Remove the two screws that hold the base cover onto the 4600. These are on the edge of the battery compartment on the side nearest the battery release latch. Press the rubber feet on the bottom of the cover towards the rear of the system to disengage the bottom door. Then remove the base cover. (See page 23 of the manual.)

Carefully disconnect the coin cell battery from the system board. There is a small white connector at the end of the wire. (The coin cell compartment is near one of the two system fans.) Pry up the current coin cell battery out of the adhesive and remove it from the computer. The connect the new battery to the coin cell compartment and reconnect the wires to the system board. See pages 49-50 in the manual. Replace the base cover and the battery.

I can't find a video for the coin cell battery replacement. However, the manual is available here: . However, the first part of the following video: . shows disconnecting the coin cell battery from the system board (when the system is completely out of the case.

I hope this helps.

Cindy Wells

Posted on Aug 10, 2017


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SOURCE: how to replace Dell Precision M6400 keyboard?
Removing the Keyboard caution.gif CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on at:

  1. Follow the procedures in Before Working on Your Computer.

  2. Remove the LED cover (see Removing the LED Cover).

  3. Remove the four M2 x 3-mm screws along the top of the keyboard.

notice.gif NOTICE: The key caps on the keyboard are fragile, easily dislodged, and time-consuming to replace. Exercise care when removing and handling the keyboard.
  1. Use the metal pull tabs to gently slide the keyboard toward the back of the computer to disconnect the keyboard.

Posted on Oct 02, 2009

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Replacing the Battery caution.gif CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. notice.gif NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer.
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Click on this link or copy and paste the complete link into your browser.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
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Boot up

Maybe your CMOS battery is low on power. Have it replaced with a new/good one.
Hope it works for you.


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