Join Date: May 2013
Location: Woodstock, IL
Thanked 245 Times in 172 Posts
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Waiting is the hardest part. Been driving a Cummins RAM since 2004, so feel free to ask as questions pop into your head.
I got the dual Alt for mine because of the weak output from the single alt my previous ones had. (The 220Amp is at max alt speed, which is about maybe 80Amps at idle).
As for your alternator charging strategy, I have plugged in my fifth wheel RV with a really dead battery, started the truck, and the RAM was able to run the truck and recharge the RV battery quick enough to where I could raise the RV landing gear to hitch up to the truck within minutes. Hope that gives you an idea on the output.
2019 RAM 2500 Laramie CTD, Crew Cab, 4X4 all options except rear air susp, Black Forest Green Pearl.