egarant
Oct 07, 2013Nomad
Battery Isolator
Hi, My new 2013 RAM 3500 HD CC LB Diesel Dually was factory wired with the 5th wheel package, which among other things included the wiring...which my Eagle Cap 950 currently plugs into. What it ...
portscanner wrote:
As you discovered, Dodge does not turn off 12V feed (some manufacturers do.) As I did not want to give Dodge an excuse of "you modified the truck - your warranty is void" I found the 12v wire from the pigtail inside the camper and installed a relay to isolate it. I tied the relay coil to the running lights in the camper.
Start the truck - running lights come on - 12V is tied in by the relay. Turn off the truck - running lights turn off - 12V is isolated.
If you want, I can dig up the info on the relay. I got it off Amazon. Took me all of 15 minutes to install it. Never have to worry about leaving switch on and killing the batteries in the truck