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Inverter or adapter for laptop computer?

Discussion in 'Electronic Design' started by no_one, Sep 16, 2007.

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  1. no_one

    no_one Guest

    A friend lives on a boat with 12V power when he is not at the dock. He
    needs to run his laptop (dell inspiron) while out at sea. He had problems
    with a Radio Shack inverter (no suprise here) that finally blew itself up in
    a large puff of smoke. His options are a new (hopefully better quality)
    inverter or a laptop power adapter that runs from 12 volts and produces the
    correct DC power to directly supply and charge the laptop. I have been
    looking at names like Cyber Power and Targus and they seem to have suitable
    units for the job.

    Any opinions on which is the better solution? It seems to me that the DC-DC
    (adapter) would be simpler than the need to chop and form 115vac which will
    go to still another adapter to provide the DC that the laptop actually will

    Thanks for any help

  2. Guest

    Hi most will run on 12 volts dc power just dont flaten the battery
    mine is a IBM note book and its work;s great just in the main battery
  3. linnix

    linnix Guest

    Is your dell battery 11V or 14V?

    You need a DC-DC converter to output 15V(11V) or 18V(14V).
    If you don't mind killing the battery, that would be fine.
  4. no_one

    no_one Guest

    It's my friend's Inspiron 9400 so I don't know; I'll have to check.
  5. krw

    krw Guest

    Have you tried Dell? Just a suggestion...
  6. krw

    krw Guest

    Really? Mine (well Lenovo with an IBM logo) wants 18V, or so goes
    the documentation.
  7. Gary Tait

    Gary Tait Guest

    My old NEC will run on 12+V, but needs 18V to charge.

    For a boat, I'd go with a DC-DC convertor.
  8. linnix

    linnix Guest

    If the battery is already dead, that would be fine. 12V power will
    drain the 14V battery completely anyway.
  9. no_one

    no_one Guest

    My friend decided to go with the 100W Anyplug adapter from Targus; It will
    run from 110VAC, 12VDC, and whatever DC is used on commercial aircraft. I
    appreciate all the info and opinions; I knew going in that there were
    several ways to skin the cat and wanted to hear what others might do.

    Again Thanks
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