My 2013 P85 with 30k miles had a sudden battery failure and Tesla has agreed to replace the HV battery under warranty. My service advisor mentioned that it would likely be a refurbished battery. That didn't set well with me and I asked why can't they just replace it with a new one. No response. Is it because it's a older model? Is a refurbished HV battery reliable or comparable to new one? Mind you that I have had the MCU and drive Unit recently replaced as well. After this I'm essentially getting a new car I suppose. Any thoughts are appreciated.