Tow Vehical Batteries

mountainsam wrote:
I know there have been discussions on this topic and there are a couple going on now, but they are talking way above me head.
I have a dodge diesel that is just the tiniest bit sluggish in starting. I think one of the batteries is getting weak. I am taking it in to have it tested and if I have a weak battery I will replace both batteries.
Question is, who has had issues with what battery brands? Currently I have Mopar batteries (original, came with the truck 9 years ago). Common sense would tell me that if they lasted 9 years I should put new ones of the same brand in for another 9 years. I can't find them where we live. And, I know from past experiences that what was good 9 years ago maybe isn't so good now. Also I have added the 5er to the mix. That may put more demand on the batteries. I usually don't look around, I just go buy Die Hard but they want some big bucks for those truck sizes. Any good/bad ones to stay away from?

Tiniest bit sluggish can become a 'no start' condition quickly. Found that out two years ago with a pair of Interstates under the hood of my '05 3500 diesel. They started acting sluggish on the way home from Arkansas. One week later, the truck was dead in the driveway. The Interstates were only 50 months into their 75 month rated life. Spent over $240 for them, replaced with a pair of Exides. I have no battery recommendation, I question whether any of 'em last a long time, at least the aftermarket offerings.