I will echo that, my optima is freaking awesome. When I put my car back together I forgot to plug in the load wire on the alternator. I ran the entire car, fans, and lights for nearly an hour before I even noticed the battery was getting low on juice. Freaking awesome!
I have one Dont use it because its like 3 times heavier than a regular battery the front end goes down on my car. Anyone else not use it because of the weight?