I drive an '02 spec with original OEM battery. My car has not shown any signs of battery failure or power loss, I pull up in my garage last night and shut the car off. Then i decide to start it up again real quick, and when i turn the key, nothing.. dead. I didn't know batteries would go without showing any signs? What batteries do you guys recommend? I will probably throw in an Optima red top and call it a day.