Hello everyone, so I bought a 2017 Ford Energi three months ago, at first I was getting 21 EV miles at full charge, there was also a day that I got 29 EV miles, now at month 3 I'm getting 11-12 EV miles at full charge. This is what the display says before moving the car. I live in CA , so the weather is pretty much consistent. Should this be a battery warranty?