The following site is something that appears to plague the Leaf (and Volt) in hot climates like Phoenix, AZ or Conroe, TX (my town.) http://www.mynissanl...y_Capacity_Loss I know that Ford has improved the battery manufacturing, but I don't know if the chemistry for the Energi is LiFePO4. If so, does anyone have information about Ford's hot weather testing of the Energi or new Hybrid battery pack? I understand that the previous Ford battery chemistry was NiCad which is more tolerant to 100+ degree days. I'm sold on the idea of the Energi, just need some tech data on hot climates.