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    USB powered external harddrive battery usage

    Discussion in 'Dell' started by profanile, Aug 14, 2007.

  1. profanile

    profanile Notebook Enthusiast

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    I've ordered the Vostro 1500 with a 6cell battery.
    I was wondering if anyone knows how much juice an external HDD (2.5") that is USB powered would take.
    I'll probably be getting this ext h HDD
     
    profanile, Aug 14, 2007
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  2. profanile

    profanile Notebook Enthusiast

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    *bump*

    anyone?
     
    profanile, Aug 14, 2007
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  3. surfasb

    surfasb Titles Shmm-itles

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    not much. The usb rail is 3.3w i think
     
    surfasb, Aug 14, 2007
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  4. mini

    mini Notebook Consultant

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    I have a WD passport (2.5", 160Gb), and it needs more than 500mA = the maximum USB current per the standard (it needs something like 800mA). At 5V, that is about 4W, which is about as much as the display IIRC.

    In other words, not a disaster, but it'll shave a little bit from your battery life
     
    mini, Aug 14, 2007
    #4