Battery Isolation Plan
There is no OEM battery isolator in either my RAM truck or my Eagle Cap TC. I have been unplugging my umbilical cord when I stop to camp, thereby disconnecting house from starting batteries. Whe...
Forum Discussion
theoldwizard1 wrote:egarant wrote:
When I look at the 7 pin wiring diagram, if I disconnect the 12 volt feed wire from either the umbilical cord or the truck receptacle that should isolate the batteries.
Are you sure it is "hot at all times" ?egarant wrote:
Of course I will not be able to charge the house batteries when underway, but I have full solar for the purpose.
You are probably not doing a good job charging you house battery anyway. There is quite a lit of wire from the fuse box to your house battery and a couple of connectors. This all adds up to voltage drop. meaning even when you are driving down the road, you are likely NOT getting enough voltage to properly charge the battery.
Go ahead and disconnect it.
If you really want to charge you house battery while you are driving, get a DC input battery charger (YES, they do exist; typically will accept 10V input) OR run a 1000W sine wave inverter directly off of the vehicle battery with very short 4 gauge or even 2 gauge wire and plug it into your converter/charger. A 500W inverter would run a battery maintainer and you could drop down to 10 gauge wire.
Yes, that 12 volt lead was hot all the time, hence my need to disconnect it.
I fully agree that the charge from the truck to the camper in the 7 pin is WAY to small to deliver a proper current. In one camper I ran 0 gauge wire back to the house batteries to get a proper current.
Should have disconnected that "hot" wire years ago!
