That's exactly what I did. I priced batteries all around, and ended up getting them from the dealer. Now I put them in myself, which was interesting. My radio was dead afterwards. I thought I would have to take it to the dealer anyway. But I disconnected them both, reconnected and the radio came back to life. A "phew" moment for sure.One of my 2011 batteries died exactly 5 years after build date. I replaced both. Ford had the best deal. I upgraded to the 850 amp hour.