Forum Discussion

oldtrojan66's avatar
oldtrojan66
Explorer
Aug 15, 2013

charging while driving

I was under the impression from somewhere that the RV house battery(ies) would be charged from the TV while driving with the umbilical attached. However on a recent trip we had stopped overnight in a K Mart parking lot and used some small portion of the charge running out the bedroom slide and some fans, while also charging some phones and an iPad. When we got home, I was a little surprised to find I had barely enough battery to run one slide out for unloading. House batteries had not charged at all in about four hours of interstate driving. Do I have a problem or a misconception?
Seeking Advice
  • jk31668's avatar
    jk31668
    Explorer
    Aug 16, 2013
    In a related situation with my 2010 motorhome it seems that when running down the road only the engine battery gets charged and then vice versa when plugged in at the campground just the house battery gets charged and not the engine battery. Why dont they wire them to charge both from either source?
  • dspencer's avatar
    dspencer
    Explorer
    Aug 16, 2013
    I have a 12 Silverado and it charges my trailer while towing for sure.
  • 6dot6's avatar
    6dot6
    Explorer
    Aug 15, 2013
    I am in the same boat. Looked to see if dummy fuse had a real fuse and it did. Mine is a gm. Not sure if my camper is even wired to charge from tv.
  • Sea_scape's avatar
    Sea_scape
    Explorer
    Aug 15, 2013
    Ford requires a relay and a fuse to be plugged in to activate the 12 volt to the trailer. They came in a plastic bag when the truck was bought. Check if these have been installed in your F350.

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