I also have replaced 2 Batteries in 4 months of ownership from new with the dealership telling me it is because I don't drive it enough. My response to them is that I have a toyota sitting in my garage that I drive a lot less and it always starts (after 3 years). The last battery I bought, I also bought a little plug in charger with it $25.00 and I have not had a problem since. Now I know we should not have to do this but it is better than fighting with the dealer for a new battery every two months.