hmmmm,,, by going through two in a year, the 3 year replacement warranty covered a full exchange right? Maybe ill get lucky,, this is the first time ive heard something like this about the optimas... maybe i should go with a walmart battery?? Please remember that im using a LOT of power with my inverter and sound system (inverter = 400 watts, im using about 120 watts of it) and my amp is 800 watts + 200 watts for the car stereo...... :S