I think it's about time for me to upgrade my stock battery. I heard many people use the sears die hard platinum deep cycle batteries but I can't seem to find them online any more? Could someone send me a link to it? I have a 2013 so I know the terminals have been switched found that out the hard way when I purchased a yellow top optima.

 

Unless you have extraordinary needs, the top of the line battery that Walmart sells is perfectly fine. That's what I put in my 2012 over 2 yrs ago. I have no regrets and would get another Walmart battery for any of my vehicle needs. I think I paid around $120. Don't deep cycle batteries has less cranking amps? Could be an issue if it is very cold out and the battery is a bit weak.

 

I have a full audio system 2 amps, and I have multiple off road lights so I think that a deep cycle would be better for me.

 

perhaps another option to consider is a dual battery setup with regular batteries. The beauty of the deep cycle is that they remain healthier when fully discharged them charged again. With a vehicle running, the alternator is always charging it, so it never actually discharges, unless you are using the lights or audio without the Jeep running. I just didn't think a deep cycle has advantages as long as your alternator is working and is adequate to keep the battery charged.

 

I read they don't have the Platinum line any longer. The platinums were made by Odyssey.

 

My audio set up requires a significant amount of power and upgrading my battery I thought would be the cheapest best option. If a deep cycle battery does not help then I will result into a dual battery setup I thought I'd try this though first and if it doesn't work I can still use the battery with my dual set up. But I do know my alternator is not able to keep up with the power I need so I figured a higher output battery would help

 

So are the odyssey battery's the only upgrade you can put in a 13 up jeep.

 

Im struggling with the comment that the alternator can't keep up. A better battery could help, but on a long trip with sustained loads, the battery would get weaker if the alternator really can't keep up. Later model jku are supposed to have 160 amp alternators. Earlier ones may have been 140 amp. There is at least one company that lists higher alternators, though they are not cheap. http://www.qualitypowerauto.com/item...p-Wrangler.htm

Also you mention that a higher output battery may keep up. Deep cycle does not equal higher output. Deep cycle typically means it can be discharged and recharged many times without damage. That's not the same thing as high output. Now, if they make a higher output battery that happens to be deep cycle I can understand where you are coming from. However, my experience in the RV world makes me think that deep cycle batteries generally have less output amps compared to non deep cycle batteries.

 

Right now I'm using Odyssey and X2power AGM batteries in a couple rigs that need the best. These AGM batteries are for both starting and deep-cycle. See https://www.batteriesplus.com/batter...v6-3.6l-600cca

As a side note, I suspect the alternator isn't 100% duty cycle at max load, and it needs more than idle RPM for max output. A SWAG is that the alternators field current is modulated to maintain ~14.7 volts up to max field current, then the max field amps (and thus the output amps) are backed off in some timed delay fashion to avoid overheating the alternator (and it's wiring).

 

I wouldn't put anything but an AGM batt. in my Jeep. I drive on rough roads at speed sometimes and they are a lot more vibration resistant. 1,000 cranking amps help also.