I hate the cold. That's why one of my favorite things about the S is the ability to preheat the cabin. But this unfortunately pulls power from the battery reducing my range.So to prevent this I use the following trick. In the morning I use the app to start heating my car. Then I walk out to the garage, unlock the car, pull the UMC cable out and then put it back in. The car starts charging again and still continues to heat the cabin. This appears to offset any lose of range from heating the car.