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Thread: Made permanent damage with dc-dc adapter for laptop?! help!

  1. #1
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    Made permanent damage with dc-dc adapter for laptop?! help!

    Bought myself one of those adapters on ebay which can transform dc 12v to dc 19v-20v etc- up to 22v.

    Well adjusted the adapter to 19v which my laptop ac-dc has as output and seemed to work nice. When I took the laptop inside 5 min later after just testing the adapter, I found out that my laptop won't recognize the ac-dc adapter or the dc-dc car adapter anymore if it's plugged in after the laptop is turned on!! So with other words; the laptop will only charge if the laptop is turned off ! and it will drain the battery when charger is plugged in!!

    What gives??! What should I do. I feel this crappy little ebay item has destroyed my 2K laptop now! Anything to do with this?!

    The dc-dc chargerd said too high voltage could give damage OVER EXTENDED TIME, but I only used it for like 5 mins before this happened!

    The laptop is a Compal CL50 with a centrino shipset

    Never read any similar thread about this, perhaps the lappy got 20-21V for like 2-3 seconds, but thats it !

  2. #2
    Constant Bitrate
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    dont forget your car is 14v at tick over.

    i.e. unless its regulated then you woulda been getting more voltage than stated out of the far side... oooops

  3. #3
    FLAC
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    That doesn't sound too good. Is the laptop under warranty? I'd play dumb and claim warranty. Also, it's too late but get a multimeter and measure the voltage out of the adapter when hooked up to the car and see if it indeed was the culprit.

  4. #4
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    No it's not under warranty anymore, but I've thought off playing stupid ann tell my insurance company that it must have been damaged while charging inside the house.

    It makes a continious bee sound on some voltages...
    Gonna test this litte bastard whit a multimeter tonight.
    It's regulated any I think all this adapters on ebay are for the most the same.



    Car DC Power Regulated Adaptor for Notebook Laptop E001:

    http://cgi.ebay.com/ws/eBayISAPI.dll..._BIN_Stores_IT

  5. #5
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    and forgot to mention. My Xenarc is flickering whenever this adapter is plugged into my laptop while the laptop screen is normal.

  6. #6
    Maximum Bitrate Zebelkhan's Avatar
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    What did you expect from this seller? His user name is LEMONCELL......
    Compaq Evo D510 e-PC - P4 2.0 - 512M RAM - 120G 3.5 HD - 7" Xenarc 700TSV - DSATX fitted nicely inside the PC case

  7. #7
    Constant Bitrate WarDriver's Avatar
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    Bummer...Sorry to hear about your hardware problems. You may have damaged the laptop's DC board. Depending on your model you may be able to swap in a new power board.

    If all else fails you could always give it to me...

    -WarDriver-

  8. #8
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    yeah took over a month before I had the charger - came in the mail with some red gift thread wrapped around it and hong kong stamps...


    anyone know if the hardware powermanagement is built into the motherboard or if it's some external changable platinacard or something?

  9. #9
    Constant Bitrate WarDriver's Avatar
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    What laptop are you running?

  10. #10
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    it's a Branded Compal CL50 laptop - compal.com

    UPDATE:

    tested with multimeter today: my usual ac-dc laptop charger gives
    19,8V stated to output 19V.

    The ebay adapter gives at 19v : 19,2 18v: 18,1 20v: 20,2

    tried to put the adapter on 20v - since that is like 0,4v more - now the battery dosen't work anymore so my laptop only runs on power from
    the usual charger with the battery taken out of the laptop!! woho

    Can't understand that all this could happend when the ebay adapter seems to be quite accurate.....

    But let this be a warning too everybody trying to power a laptop in their cars!


    I called my laptop support division. Got reply whith most possibly motherboard damaged and whole motherboard must be changed = EXSPENSIVE - costs over 500$ !!

    damn I don't know what to do now....this was a real downtrip

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