My Diesel Ram has got its OEM Batteries still in place, its an 03 with a July manufacture date. Anyways the batteries are starting to show all the signs of wearing out, longer crank times, more temperamental than normal when we had some nights in the 30's, sitting for longer periods of time makes seems to drain it, ect. For the next couple months I'll be running around Massachusetts and sometimes will be overnighting in places that are so remote that I'll be camping because there is no motel. I'd like to be able to run the stock radio or a power inverter with a laptop for a couple hours those nights without worrying about the truck not cranking over in the AM. The closest to offroading this truck comes is rough or partially washed out dirt roads. Most of the year she's daily driven in the city. Cliffs: I need new batteries for a 2003 Ram 3500 Diesel. Recommend me something, keep in mind there will be 2 of them.