mkirsch wrote:
ScottG wrote:
covered wagon wrote:
srschang wrote:
You're not going to get much charging through the factory 7 pin plug. The wire from the alternator to the 7 pin plug is too small.
My 02 Dodge Cummins does great no mods except it has the trailer plug in the rear and that's what it's hooked to. I know it's too far but, it does great.
When checking you need to take apart the male part of the 7 pin adapter that's mounted on the camper. The guys building these things get piece rate and so that wire doesn't often get stripped... they just try driving the set screw in tight enough to break thru the wire insulation and that's what I have found twice now. Both times fixing these have had good results.
My 03 does great as well.
I don't know about newer RAM's but older ones had a 10 awg wire feeding the 7 pin charging circuit and it passes plenty of power.
What's "great?"
If you don't run the battery down much, it does not need much charging.
Mine have had no problem supplying 20~25+ amps continuously when called upon over the last 30+ years. The 10 awg wire trucks of this era used is the key.
There have been a lot of blanket statements made in this thread that simply don't apply to the OP's 2002 Dodge.
