Here's the deal. My truck was down from Dec.29 to Mar.14. Although I disconnected my batteries it still got very cold during those months and now for the last two days I've had to boost my truck after letting it sit over night. Could the batteries have froze or something? After the boost in the morning my truck will fire up for the rest of the day without a problem. My Optima Red Tops have a 3 year replacement warranty so I just might return them to Wally World and get a new set.

Nick

Red tops can die easier than yellow tops. I don't think they can freeze though. Might want to charge them up on a charger till fully charged then disconnect over night to make sure you don't have something draining them though before you replace them.