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Model S battery range problem in Minnesota winter
I just got my Model S 4 days ago. It's an inventory vehicle with ~1000 miles odometer reading at the time of purchase. 85D with EPA mileage claim of 270 on full charge. I have been using it for commute to work and charge it to recommended 90% (242 miles) in the night with a newly installed NEMA 14-50 in my garage.
My work place is about 11 miles from home and I have been commuting back and forth only once (~22 miles/day), still by the end of day the car is using almost half of the batter range. 1st day I plugged it back with only 97 miles remaining on raged range only after driving 40 miles. Next day, I plugged it in with 160 miles remaining after a 22 miles drive.The average energy consumption is extremely inefficient and ranging somewhere close to 510 kWh (For EPA I need close to 300 kWh).
I have noticed only turning the car's climate on consumes 5-10 miles of battery range within 15-30 minutes.
I called the customer care center with this problem and they told me to start the car (turn the climate on with phone app) exactly 20 minutes before leaving and still I noticed usage of 42 miles range after driving only 11 miles.
Is there something else I can do? I did proper research and read everywhere that the expected loss of efficiency due to cold weather should not be more than 5% of the range. But what I am getting here is close to 30-40% loss.
I live in rural Minnesota with a 2 hours (105 miles) drive to Minneapolis/twin cities area frequently. Now, I am really apprehensive in driving back and forth to cities in this car. Even if I manage to spend several hours charging it on a public charge station I can't be sure to drive back and forth with enough heat in the cabin or do a little extra driving in cities to go places.