@bmah when were your powerwalls installed? I wonder if there was something about the ones around that time period or something? FWIW I escalated (again) a ticket to tesla energy support tier 2, because when I did last time the 1st level agent let it slip that "your powerwalls didnt have 13.5 when they were installed". Since this is still bugging me, I called them again and complained that when I purchased them, they were supposed to start with 13.5 and they didnt.
The tier 1 agent wanted to know, in so many words, "how did you determine this information" and I said "the agent last time told me".. this agent said "oh....". They then told me "I see notes from your previous call on this subject and that tier 2 came back and said you had not met the threshhold for warranty action of 70% yet", and I said "yes but I was supposed to start with 13.5 and I didnt".
Shrug, will see where it goes, I dont have high hopes of them doing anything until I get to the threshhold. Will update this thread any other way.