Tesla just called to schedule a "Proactive Courtesy Inspection on the Battery." I was scheduled to have work done on the car tomorrow, but they called to see if I wouldn't mind rescheduling so that they could do a free inspection of the battery. I don't mind at all, but I've never heard of anyone needing their battery inspected before. Does anyone know what their looking for and/or have had this done on their car? When I asked for more details on what they're inspecting they said it was "very technical" and that "only a few technicians know how to do it" and "its only done to select cars." I'm thinking maybe its an inspection they do to cars that have had a lot of miles put on them in a very short period of time? I put 42,000 miles on my car in just one year, so maybe they're studying it? Idk, but I'm definitely curious. If they are studying it I don't mind at all. Anything to perpetuate and improve the technology is 100% ok with me. But again, has anyone had this done before? and do you what its for?