Connect with us

Compaq laptop doesn't show battery support

Discussion in 'Electronic Repair' started by Sam Goldwasser, Feb 19, 2008.

Scroll to continue with content
  1. This is a Presario 1200 series. It works fine in every other respect
    but not only does the battery not charged or recognized, there is no
    evidence that the OS even knows this is a laptop with a battery.
    Device Manager has no entry for battery management and the "Power Options"
    entry in Control Panel doesn't have a battery mode.

    So, is this bad OS install or bad hardware? It's XP. Yes, believe it or not,
    I'm not running Dos 3.0 on this one. :)

    Any comments appreciated. This isn't a big deal as the battery is old and
    most likely dead anyhow, but I'm curious.

    Yes, I know what they say about curiosity....

    --- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
    Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
    +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
    | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

    Important: Anything sent to the email address in the message header above is
    ignored unless my full name AND either lasers or electronics is included in the
    subject line. Or, you can contact me via the Feedback Form in the FAQs.
     
  2. Dave Platt

    Dave Platt Guest

    Could be any of the above.

    As I understand it, older laptops used a combination of
    vendor-proprietary features, and APM, to provide support for battery
    and power management. Newer laptops use ACPI. Windows XP supports
    both, but prefers ACPI - APM-only laptops may or may not have ACPI
    support enabled by default. Even if the laptop does support ACPI,
    it's possible that XP can't use it - there were a fairly substantial
    number of systems which have defective ACPI tables in their BIOSen
    which don't function properly with some operating system ACPI
    interpreters.

    According to Wikipedia, the 1200 series actually includes a wide range
    of variations... you might have a model with a bogus APM or ACPI.
    It's even possible that you have a model so old that neither standard
    is supported, and vendor-proprietary drivers are needed in order to
    enable power management.

    First suggestion: boot up into the BIOS setup screens, and see if
    you can tell whether APM or ACPI is supported, and (if so) whether
    it's enabled.

    Second suggestion: boot up Knoppix or a similar CD-ROM-based Linux
    distribution (which won't disrupt your XP install). See if it can
    "see" any of the battery or power management support. If so, this
    would indicate that the hardware is probably OK, and that XP doesn't
    have the right set of drivers or configuration.
     
  3. hemyd

    hemyd Guest

    G'day Sam,

    Can you power up the laptop with only the battery? Probably a silly
    question, as the battery would be flat by now. The best method of
    eliminating hardware is try substituting the battery - if you can find
    another one of that vintage. Although it may be the power management
    software, if you're unlucky it will be the system board. If you can find
    another laptop of the exact same model, try substitution. First the battery,
    then the hard disk, which will eliminate the software. Does the laptop have
    any leds which register the presence of a battery?

    Batteries are quite complex these days, with feedback circuitry of all sorts
    (I'm no expert on batteries). I read once that most laptop batteries fail
    not because of bad cells, but faulty circuitry.

    Henry Mydlarz
    Australia
     
  4. Thats interesting, kind of like drive electronics fail on HDDs.

    Mike
     
  5. bz

    bz Guest

    You might visit support.dell.com, download the XP drivers for that model
    and install them.





    --
    bz 73 de N5BZ k

    please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
    infinite set.

    remove ch100-5 to avoid spam trap
     
  6. I did that but only found drivers for the touchpad and something else
    unrelated. Is there a place at dell.com that will have all drivers for
    a machine that old?

    BTW, installing the touchpad drivers did upgrade the touchpad from a
    vanilla flavored mouse, so that does suggest that whoever loaded XP,
    didn't have the Dell drivers.

    Thanks.

    --- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
    Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
    +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
    | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

    Important: Anything sent to the email address in the message header above is
    ignored unless my full name AND either lasers or electronics is included in the
    subject line. Or, you can contact me via the Feedback Form in the FAQs.
     
  7. That should have read: hp.com or compaq.com. :) P.S. the complete
    model number is 12XL420.

    --- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
    Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
    +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
    | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

    Important: Anything sent to the email address in the message header above is
    ignored unless my full name AND either lasers or electronics is included in the
    subject line. Or, you can contact me via the Feedback Form in the FAQs.
     
  8. bz

    bz Guest

    compaq.com, yeah!

    Well, HP has a link for downloading the 'HP battery check' on
    http://tinyurl.com/357w2a
    but the link seems to be broken. :(

    Perhaps, knowing what you are looking for, google can help you find it.
    Perhaps someone has the original installation CD for that model.

    Good luck.





    --
    bz 73 de N5BZ k

    please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
    infinite set.

    remove ch100-5 to avoid spam trap
     
  9. nvic

    nvic Guest

    The link for Battery Check is:

    ftp://ftp.compaq.com/pub/softpaq/sp32001-32500/sp32299.exe

    Hope it helps :)
     
  10. Franc Zabkar

    Franc Zabkar Guest

    All I found was this:
    http://h10025.www1.hp.com/ewfrf/wc/...ge=product&printable=no&dlc=en&product=95093&

    Is it possible that Win XP already includes the appropriate sound and
    display drivers? For example, do you see a "Trident Cyberblade Cbi1"
    video card in DM?

    - Franc Zabkar
     
  11. Thanks. I'll check it out.

    --- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
    Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
    +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
    | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

    Important: Anything sent to the email address in the message header above is
    ignored unless my full name AND either lasers or electronics is included in the
    subject line. Or, you can contact me via the Feedback Form in the FAQs.
     
  12. Right, that's all I found.
    Don't know. The Trident does show up.

    --- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
    Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
    +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
    | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

    Important: Anything sent to the email address in the message header above is
    ignored unless my full name AND either lasers or electronics is included in the
    subject line. Or, you can contact me via the Feedback Form in the FAQs.
     
  13. "System is not compatible with this program" or something to that
    effect. :( :)

    Thanks.

    --- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
    Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
    +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
    | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

    Important: Anything sent to the email address in the message header above is
    ignored unless my full name AND either lasers or electronics is included in the
    subject line. Or, you can contact me via the Feedback Form in the FAQs.
     
  14. Franc Zabkar

    Franc Zabkar Guest

    Maybe you need to install Service pack 2 ???

    ======================================================================
    Which Windows operating systems does the HP Battery Check support?

    "The Battery Check supports Windows XP SP2 or Windows 2K with the .NET
    framework installed."
    ======================================================================

    - Franc Zabkar
     

  15. Sam, are you familiar with Belarc Advisor? It's free and very
    useful: <http://www.belarc.com/Programs/advisor.exe> Right click and
    save it to your computer, or just run it from their website to install
    on your computer.

    --
    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
     
  16. Franc Zabkar

    Franc Zabkar Guest

    I believe "smart" batteries have a coulomb counter which maintains an
    accurate record of the state of charge.

    See http://en.wikipedia.org/wiki/Smart_Battery_Data

    The interface is I2C aka SMBus in PC terminology.

    See http://en.wikipedia.org/wiki/System_Management_Bus

    - Franc Zabkar
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-