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Colo_Native's avatar
Colo_Native
Explorer
Jul 26, 2015

7 pin plug question

I have my new FW and was wondering when parked over night say in a Walmart lot with no power source do you leave the FW plugged into the truck and does it draw off the truck battery?

13 Replies

  • Flip open 7 pin receptacle cover on truck and test for 12V at 1 O'clock blade.

    Truck key off.........no 12V------no drain on battery



    Even if there is 12V power with truck key off........overnight stop should NOT drain truck battery unless trailer battery is really low/bad

    Boondocking-----YES unplug
  • Most factory wired Ford connectors are powered through a relay that disconnects when the engine is hut off. No need to unplug!