Glad to find this forum. Was considering buying a 2015 C-Max SEL, 84k miles, 1 owner, and was excited about entering the world of hybrids for the first time. I wanted to find out more about how long the hybrid battery might last and how much it could cost to repair. After reading this forum, I think unless I have a degree in hybrid auto mechanics, I have no business getting a hybrid. I definitely don't need a car that requires daily performance analysis. Not to mention, I live in the midwest - it gets cold in the winter, and hot in the summer, neither of which sounds good for performance. Thank you for a quick lesson in reality!