I have a 2015 Fusion Energi since new and now in the Arizona desert getting to 110° my car sometimes will not run on the battery. I charge at night and it's fine going to work and I charge on 110 at work and the battery is charged about 3 hours before I leave for work. In the last two days whenever I get in the car after work, the car won't even run on the battery. I know it takes a lot of KW's to run the AC when it's 110° but I've even tried with no AC and the Empower bar is so low that when I give it just a little gas the engine starts up. Just curious if it's the heat, or is there something wrong. I called the dealer and they said it's normal. But on my 33 mile drive home the engine ran the entire time and when I got home my trip gauge said I used 4.5kw and my EV was 0. I think my car has a 7kw battery and I don't remember how many KW's it used when I bought the car but after almost 3yrs and 60k miles I think only getting 4.5kw from the battery may be normal degradation. Any suggestions would be greatly appreciated. Thanks