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HP EliteBook 8540w Mobile Workstation - Removing and Replacing the Battery


This document is provided to assist in removing and replacing the battery for the HP EliteBook 8540w Mobile Workstation.

Minimum skill level

The End User requires no hardware-specific training to replace the defective part. The End user should have familiarity with system hardware and software requiring repair.

Parts required

Part numbers are subject to change.
The replacement part number will vary depending on the battery that is being replaced. If a part is listed as "Yes" under "Requires Return" then the defective part needs to be returned to HP.
Part Number
Requires Return
Battery (Primary) - 8-cell lithium-ion (Li-Ion), 2.55Ah, 73Wh
493976-001 (Modified)
Battery (Primary, XL) - 8-cell lithium-ion (Li-Ion), 68Wh
592078-001 (Modified)
For customers in countries/regions with RoHS legislation* (e.g. EU, China, etc.) restricting the use of hazardous substances in electrical equipment. The use of the Original Spare part is regulated by RoHS legislation. If your unit contains a part that is labelled with the Modified Spare number, the Modified Spare must be ordered as the replacement part. If your unit contains a part that is labelled with the Original Spare number, please order the Original Spare as the replacement part. In this case either the Original Spare or the Modified Spare may be shipped which will not affect performance or functionality of the unit.

Summary of instructions

To view a video demonstrating the procedure for removing the battery, click on the link below. Or use the product video listing on the HP Services Media Library, (Click here to go to HP Service Media Library), then select Battery from the menu on the upper left hand side of the screen.
Click here to view the battery removal video (right-click on the link to open in a new window/tab).

Battery removal

  1. Review the safety considerations before performing the steps listed below by clicking on the following link:
    Failure to comply with the precautions could result in damage to your product or loss of data.
  2. Slide the battery release latch toward the outside of the notebook to eject the battery.
  3. Slide the battery out of the battery bay.

Battery replacement

  1. Slide the battery into the battery bay until it is properly seated and the release latch clicks.

Land/Region: Flag Deutschland


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