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Trick My Truck...

Discussion in 'General Electronics Discussion' started by Driver, Oct 23, 2009.

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  1. Driver


    Oct 23, 2009
    I am a semi truck driver. I have a 1500 Watt inverter that pulls <110 amps with my load that I used in my previous truck. The company I now drive for will not allow us to use any direct connect (to battery) inverters. They do however, allow us to have inverters that plug into the 12 volt cigar lighters and power taps. Here is my project...

    I would like to take 3 of the 30 amp taps/sockets and 1 20 amp socket and feed them to the inverter for a 110 amp total, thereby allowing my larger inverter to be powered. At least, that was my thought. Gicen the wiring per socket will be of various lengths, I am unsure whether each fuse would pass the proper amperage or if they would blow, one by one.

    1) Is this possible
    2) If so, any advice on necessary circuits would be useful
    Last edited: Oct 23, 2009
  2. Resqueline


    Jul 31, 2009
    It's sad to hear and unfortunate that they won't provide the amenities a driver could want..
    I'm surprised your inverter is made for 12V, as I'd expect semi's to have a 24V system.
    You are right in suspecting the current won't be equally shared by the sockets due to varying wiring and contact resistances, so the fuses will blow rapidly once the first one blows (and it will).
    The technology exists however, presumably in the form of trailer (etc.) battery chargers that will draw up to whatever amperage limit they are set to operate on, at whatever voltage they then get, and use that power to quickly charge - & keep a battery fully charged. You'd need four of them, and maybe one small storage battery (just to act as a surge buffer).
    But I'm sorry to say I don't have any overview of actual producs on the market.
  3. neon


    Oct 21, 2006
    that kind of amperage out of cigaretts lighter you are dreamingno way ever.
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