Depending on how your truck came from the factory, you might consider upgrading the alternator. My Power Wagon came with 160amp alt, and I thought it was great until I added a fridge and a second battery to support it. Wound up adding a second house battery to give me 150ah in the house bank plus 105ah in starting battery, plus a 270amp alt. Still not enough in the desert in summer temps. FWIW, the Warn winch on the PW draws 440 amps at max pull, rated at 12,000 pounds but is mostly 15,000 pound components. You will need way more juice than you think.
Where does one find the rating of the installed alt? I looked on the Window sticker that came with my truck, but alternator is not listed. I have a Laramie mega cab with 6.7 Cummins, not sure if Ram uses standard build packages for the chosen Trim level.