My car has only a couple hundred miles, however, I am noticing that the EV range (battery) after a full charge has dropped from 47-40??? Maybe this is a mental thing but this bothers me...Is this a normal occurrence? Is there a reset of MPGe setting? Should I completely forget about the meter stuff and just drive......In the Nissan Leaf the E meter really means very little. Its ok accurate when average temps at slow speeds but during extreme hot of cold or highway .........forgetaboutit!!!!