Hello, I have a few Jeeps and with that, cannot drive them all as much as needed. There are a few comments/replies, I'd like to add to. I have yellow top Optimas and they work fine. I also have dual red tops and that works fine as well. How ever, I'f found that the best battery out there for us with Jeeps, starting, and lights, and winches, the optima blue top by itself or dual. The reason for this is because optima made the blue (marine) top the same as the yellow deep cycle except they added the side terminals, which makes hooking up a winch and/or accessories a LOT easier.
Have a look at optima's site here. allpartsdistributing dot com
Another comment was about charging with a battery tender when you're not using the Jeep. This too is correct however, the battery tender jr. (shown) will only put a surface charge on the large batteries. These were made for motorcycle batteries (power sports) and only put out .75 amps. The one you need is the Power Tender, it puts out a 5 amp charge.
Thanks a lot,
Tony