Took a trip to St. Michaels on the eastern shores of Maryland from Long Island. Stopped first at the Hamilton Marketplace supercharger in NJ, which is 111 miles from home. Began the trip with 200 miles and ended up at Hamilton with 64 miles left. Charged up to 164 miles and left for Newark DE, which is 75 miles away. Arrived with 65 miles left. Charged up to 175 miles and left for St. Michaels and arrived with 72 miles left. The temperature averaged around the high 20's (26 to 29 F). The loss due to cold weather driving was significant (20 % +). I am figuring that most of this had to do with maintaining the cabin temperature at 68 F. What is thought of the amount of loss due to batteries effected by cold weather? I was surprised as I did not think that 26 - 29 F as being extreme.