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drifterpilot's avatar
drifterpilot
Explorer
May 22, 2014

Interstate or Duralast Batteries

I have to replace my coach batteries.

Presently, I have two Interstate 31-MHD CCA 950 batteries installed.
Where I am located, it would be convenient to replace the two Interstates with two Duralast 31-950's. The outside dimensions of both types are comparable.

I have used Interstates for a long time, so I know the performance record of them.

I am looking for personal opinion comments regarding the Duralasts.

Thanks
Class A

18 Replies

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  • Cobra21's avatar
    Cobra21
    Explorer
    May 22, 2014
    It's a coin toss, I had an Interstate Battery last for 3 years. It was amazing
    for three years and then just dropped dead.
  • Ivylog's avatar
    Ivylog
    Explorer III
    May 22, 2014
    I'm at 11 years on by two Interstate engine batteries. Guess what I'll replace them with when I have to start using the boost switch to start the engine. At five years I found the caps under the hard plastic top and every other year I add a little bit of water.
  • rocmoc's avatar
    rocmoc
    Explorer
    May 22, 2014
    Just replaced mine. I replaced with CAT batteries. Looked at the rest but found for me/IMHO the CAT battery was the best. Price was also lower than the Interstate 31. Check out your local CAT dealer.

    rocmoc n AZ/Mexico
  • MrWizard's avatar
    MrWizard
    Moderator
    May 22, 2014
    I have two Duralast Gold for my starting batteries, at age (2) years, one failed and was replaced free exchange under (3) yr free replacement policy
    I have been happy with their performance in our dp
  • chuckftboy's avatar
    chuckftboy
    Explorer
    May 22, 2014
    Interstate batteries are hard to beat for quality but the Duralast are probably cheeper. If it were me I'd go with the tried and true Interstates.

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