While I agree batteries do typically last longer when used every day the first two batteries I had fail in my Challenger when the car was a fresh resto I was driving the car practically every day.. I lost them both in the first eighteen months.. I put about 25K miles on the car in that time.. It wasn't a garage queen... Those batteries were junk... The new sealed batteries probably are allot better but I will never know cause my Odyssey keeps on cranking it out...