I have a 2013 P85+ with the extended warranty. Is the 12v battery covered under the extended warranty? I got a notification tonight that said 12v battery needs service, so I assume it's run its course. I'm at about 63k miles, so it's about time. Even if it is covered under the extended warranty, Tesla has been enforcing the $200 deductible so is it even worth it to take it to Tesla? I may need to have my brakes done as well since they have never had anything done to them, and they are starting to squeak a bit. Should I make an appointment with Tesla or just go to an independent shop? Thoughts, experiences, prices? If the brakes and battery cost a bit more than an independent shop, I don't care, I want the best for my baby. If the price is substantially higher maybe not.