[Too Many Projects]

I put a new battery in within the last 2 years too. Big 900 CCA NAPA, zero issues pulling any of my trailers. It's the plow motor that trips this. I don't do commercial work either, it is just for my home with 450' of driveway plus 2 large turn arounds. Plow was bought new in the fall of 2015, the year I bought the truck.
I will definitely try Tony's suggestion the next time I need it. So far this winter, that has been twice a week. We are 20" over average snowfall for this time of winter.
Hope the states down the mighty Mississip are preparing for flooding...