Originally Posted by
ChargersFanInCO
my first 08 and my second one BOTH came with the 540cca. My first one died with no warning, and got replaced with the biggest one that would fit in the box. My second 08 got the battery replaced the first Saturday I had her. That 540 isn't enough for a well equipped truck.
Mine also died this winter in my '08. The dealer replaced it with a much larger size. I think 850cca. You can really tell the difference when it's -20 out with the bigger battery. I don't know why they put such a small cca battery in a truck that needs something bigger.