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12VDC / 1.2A ... from a vehicle battery

Discussion in 'Power Electronics' started by HustonBrown, May 22, 2012.

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  1. HustonBrown

    HustonBrown

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    May 22, 2012
    I am working on a project where I will need to have power from a vehicle battery supply an electronic device that needs 12vDC/ 1.2 A . This is going to be a device that will be positioned 16-24 feet beyond the battery.

    I was hoping for some advice that wouldn't require getting a power inverter.

    Any ideas are appreciated.

    Thank you,

    Huston
     
  2. BobK

    BobK

    7,682
    1,687
    Jan 5, 2010
    If the vehicle has a 12V battery, you can run the device directly from it. If it is a car (not a motorcyle or truck) it almost certainly has a 12V battery. The easiest way to do this is from the lighter socket which you can get a plug for at Radio Shack. Just get the polarity (+ and -) right when you connect it.

    Bob
     
  3. HustonBrown

    HustonBrown

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    0
    May 22, 2012
    Thank you for the quick reply BobK

    This is a truck battery, and the wiring will be on the exterior of the cab.

    I would like for it to be able to draw power when the keys are not in the ignition, but I only want it to draw power when in use, not constantly...
     
  4. BobK

    BobK

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    1,687
    Jan 5, 2010
    It is okay as long as the battery is 12V. Of course it would only draw power when in use.

    Bob
     
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