That's a good one, odd even the Northstar 34 seems to have a slightly higher current rating, obviously it doesn't matter at all because they both are high enough but still I had no idea.
I believe the Northstar, Die Hard, and Odyssey 78/34 batteries are all the same...I know they are all made by Enersys. I'd be the group 24 are similar.
The only two things that make a Marine battery are, in my experience and opinion, is they are usually a deep cycle and they have threaded posts with wing nuts. I would not choose a deep cycle battery for SLI use on a vehicle.
I could not find a amperage spec that said that the Sears Diehard Platinum marine was any different than a normal Platinum when they were still being built. So, that is what I ran purely because I could get it in a group 31. It never acted any different than any of my other 9 Diehards I had at the time. I did find out that they die just as easily as any other AGM if you let them sit discharged for any length of time whatsoever.
