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12 v drainage problems

Discussion in 'Trucks and Trailers' started by Hamons, Sep 5, 2003.

  1. Hamons

    Hamons LawnSite Senior Member
    Posts: 706

    I have hooked up a deep cycle battery to my sprayer trailer to run the electric reel. The battery is hooked to the electric reel motor through a switched relay.

    The problem is that my main truck battery has been draining everynight since i have installed the extra battery. However, my rudimentry, but I beleive sound, understanding of 12v electrics doesn't support this. There is no reason for the trailer battery to drain the truck battery -- that I can see.

    Even if my trailer and truck are sharing a ground through the hitch -- it still should not drain my truck battery right?

    But... what if the relay or the motor on the trailer are drawing a small current? COuld that cause a drain on my main truck battery -- I don't think so -- but maybe?

    Any thoughts?
     
  2. LoneStar_Lawns

    LoneStar_Lawns LawnSite Member
    Posts: 10

    Sounds like you have two seperate problems. I would have truck checked out.
     
  3. Hamons

    Hamons LawnSite Senior Member
    Posts: 706

    I haven't got it figured out yet.

    I have jusy been unhooking the ground to the sprayer battery and have had no problems. Right now in the middle of seeding time -- I don't ahve an extra few hours to diagnose it.

    It's got me baffled.
     

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