A couple of weeks ago my Tesla lost 10% of its max range overnight. I scheduled a mobile tech and a few days before the appointment Tesla called me and said I needed to bring it to my local SC and scheduled an appointment. They said they saw some errors with their mobile diagnostics. I took my car in to the SC on the scheduled date and they said it would be done following day. They ended up pushing pickup off twice for further diagnostics. When I went to pick up the Tesla they said nothing was wrong and to take my car. I further inquired with my service advisor who admitted they detected a voltage fault in the battery but it’s all normal. I asked to speak to the technician and he said no problem. I waited around over 30 minutes and the technician didn’t come up. He went back and the technician said he has nothing further to tell me and wouldn’t come up. The service advisor said I have one of the “rare cars” who’s battery is showing degradation. He also said to drive it 4-6 weeks and it will even out. Before bringing it in I tried to recalibrate the battery by driving it under 10% leaving it overnight and charging to 100% twice. Both times it would not charge to 100% and stopped at 96% and 97% and couldn’t be forced to charge anymore. My issue is my p85 2013 battery warranty is up in 4 weeks. I also believe if the battery degraded it would have happened over time and not lose 10% of max range overnight at the same time a voltage fault was found. To me it sounds like the voltage fault damaged the battery. What do you guys think and suggest? I tried again (third time) to drive it below 10% and charge to 100%. It would only charge to 95%. If battery won’t charge to 100% (not indicated mileage) they should replace this obviously damage battery under warranty right?