We used to get consistent charges and then the range dropped a little; however, we charge to 100% every time, so maybe we should start charging to 80% instead? There are a lot of factors that can affect the range, and I am aware of them.
For instance, during the summer (which was exceptionally hot this year), the electric vehicle's range can vary. One day, it will charge to 300 miles, and then around a week later, it will charge to 375 miles, which is the highest range we've experienced. In winter, the range remains the same, but obviously lower due to outside temperatures. I was hoping for a consistent figure, if only by a few percent. I don't mind the accuracy of the car's display and the range driven; if this is the norm, then I can live with it. Fortunately, we don't have to rely on a full 370ish range for long journeys.