I have just graduated to this part of the forum topics with my day old M3 SR+. Question: I got the car with 13miles in it at 160 mi range charge. Took about an hour to inspect it with the car "running'. Went to a supercharger on my way home and charged it from 134 to 219 mile. Drove around a little bit. Total miles now: 47mi. @ 185mi range So total miles driven: 34miles Battery loss: 60miles. I'm in Cali, it's colder than usual but not under 45F. is this normal? Do batteries need to get used a few hundred miles before they become efficient?