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How do I change the CMOS battery on my Fujitsu Siemens Amilo D 7820?

Hi there

The CMOS battery dies every year or so on my Amilo D 7820 and I figured I could probably change it myself instead of paying someone else to do it for me as the batteries are quite cheap. However I'm not sure which bit of the back I need to take off and I don't want to break it.

Does anyone know which section of the back panel I need to take off to get to the battery and if it's easily accessible? Any thoughts would be very welcome

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  • ianholmes Feb 16, 2008

    Thanks for the suggestion - I did exactly as you said but once the CD drive, battery and hard drive were off I took out all the screws but I still couldn't get the back panel off. I managed to prize it open at the front edge but something somewhere was holding it in place (could have been the floppy drive or one of the other ports). I was reluctant to force it as I didn't know what I could break.

  • heruless Nov 07, 2008

    i have the same problem.

    i have Amilo 8820 laptop. Have removed all removable drives, all covers, srews but cannot open fthe cover fully. something seems to hold it halfway towards the back

    By the way i need to change battery because i have lost CMOS password.

    Does somebody out have an idea how to overcome this problem. system does not accept my password and FDD does not work.


  • heruless Nov 07, 2008

    I have the same problem on a AMILO 8820.

    Cannot get open the cover after reming all Drives, battery and covers except floppy. By the way mine is a CMOS password problem as system has failed to accept it. I have tries battery and power off with all pwords i ever used but does not and FDD does not work.

    Any ideas out there




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My best suggestion, is to remove the CD Drive, Battery, and Hard Drive. THen undo all of the screws on the back panel. There is no easy access panel to do this, you have to remove the entire back panel. once you have the back cover off, it should be pretty easy to replace the battery.

Posted on Feb 05, 2008


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