S Davis wrote:
theoldwizard1 wrote:
deltabravo wrote:
Also, a major wiring upgrade will be needed.
This is how I did it
I VEHEMNTLY DISAGREE !
The whole point of a DC-DC charger is to NOT require oversized charging cables ! It boost the voltage at the RV battery to the correct voltage to charge the battery using the standard vehicle/trailer wiring !
Even with your large gauge wire, you should check the voltage at your campers battery after about 10 minutes of driving and at high idle. If the battery is say 80% SOC, the voltage at the camper battery should be >14.0V.
I think some of your info is not accurate, you keep talking in these threads about smart charging and the ECM controlling voltage and now engine RPM. You have been stating that you can’t use vehicle charging effectively because the charging system will lower the voltage after a few minutes to 13 volts or so, now I will state here I don’t know about Ford or Dodge/Ram but all of my Chevrolet HD trucks since 2003 do not do this, the alternator keeps voltage steady all the time, I can drive for hours and it never changes.
My ford will, but only if the batteries are topped off, if there is a draw on the batteries the voltage will stay up untill the battery is charged. this type of system was not on the fords untill .. I want to say around 2011ish, probably be simular with the gm. I dont see the battery guage move inside the truck as they are just an idiot guage, but if I watch the multimeter in the driveway after a while it will drop off to cover just the accessories you have running and a trickel to the batteries to keep them topped off. makes batteries last longer I guess.
Steve
