I just went through thie dilema 4 days ago. I just moved down here to florida, had a nightamre about my car not starting and what do you know, the next day was a lazy start then nothing, dead. Talked to some people and they say that this heat and the humidity combined with the salts in the air KILL batteries like mad. Well I went on down to PEP BOYS and they tested my old battery with a cool little battery tester ( took it bout 15 minutes to test so I didnt feel like it just says that EVRYTHING is bad) Anyway, the optima was like $120 or so and they just started carring some shnitty energizer batteries. But it has 2 year free replacement warrenty, 84 month percent value warrenty and was only like $60 so I said why not? I dont need anything real bad ass yet, so it works fine, is 875 cca and works fine.