Since then I've been recording charge data in an excel chart. Its not good. My car dropped to the 38-41 EV Range and has not returned to "normal." I know there is a lot of data on this chart. The Red is the ambient temperature. The Blue is EV Range after the battery shows fully charged. the green is a running average. The two blue peaks toward the left were after 500 mile road trips. As you can see through more than a year the car averages about 40 miles of EV Range. Yes it drops as the ambient temperature drops but it never returns to the 45-50 mile range.