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.
This has been on four different Chevrolet trucks including a 2003 2500 HD gas truck and three 2500 HD diesel trucks, 2009, 2013 and 2019, so when you are making a blanket statement that something will not work because of smart charging you are misleading people IMHO. Also as stated before in this thread all the dc to dc chargers I looked at for my install recommend larger wire from the vehicle charging system, now admittedly I was only looking at 40 amp or larger dc to dc chargers. I am not trying to start an argument just stating my experience with GM HD trucks.
