I just replaced the battery in my Land Cruiser with a bigger one, love it. It's a size 49 Duracell from Sam's Club, $88 with a three-year replacement warranty, and eight-year prorated warranty. 900CCA, powerful bugger, 14" long, barely fits between the radiator and fender. I've gotten new batteries with full warranties from Sam's when the three-year was over, paid seven dollars one time for a new size 49 for my Audi.
The one I replaced was a Werker from Batteries+, 2.5 years old with a 2-year warranty, worst battery I've seen, comes from Germany.
Most batteries sold here come from just a few manufacturers, not much difference.