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Thread: Powering Laptop

  1. #1
    Low Bitrate fabiolover2002's Avatar
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    Powering Laptop

    I am building a carputer using an old compaq laptop. Ive wired two wires to the power button and when I touch them together it turns on. I have also figured out which wires in my 93 volvo behind my radio do. One is labeled +12 and gives power constantly, and another does the same but only when the car is on. I have a cigarette lighter adapter for my laptop and i was wondering how you all think I should set this system up. Preferably I would just like to somehow wire my Lilliput and my laptop to these wires so they would start when the car is on. I am assumin I will need to buy a start up/ shut down controller.

  2. #2
    Maximum Bitrate binary.h4x's Avatar
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    What I did with my lcd was to buy a fuse tap and tap a fuse that only had power when the car was on. I ran the new power line to the lcd. The fuse tap was rated like 10 amps, but lcds usually draw only 1 amp.

    For the laptop, maybe there is a setting in your power options to shut the laptop down when the AC adapter is unplugged. Cigarette lighters are usually switched with the accessory ignition switch.
    2007 Honda Fit Sport 1.5L SOHC-VTEC

  3. #3
    Low Bitrate fabiolover2002's Avatar
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    But what could I do to have the two wires be connected for a few seconds to start the laptop up. If the wires are connected any longer it is like holding down the power switch on a computer and shuts it off.

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    Maximum Bitrate binary.h4x's Avatar
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    http://www.the12volt.com/relays/page5.asp#ctm

    BTW, GREAT site, read as much as you can
    2007 Honda Fit Sport 1.5L SOHC-VTEC

  5. #5
    Low Bitrate fabiolover2002's Avatar
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    Now all I need to know is; Is connecting the lilliput "egg" to the +12volt and the ground the same as connecting it to my cigarete lighter?

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