this is the kind of weird **** everyone is talking about here.
I think their case specifically may have been temperature effects. Without looking way back in the thread, they suspected a May update and live in Colorado. My bet is just reduced reported range due to cold, which is absolutely normal.
the cold weather doesn't seem to preserve batteries the way it did with the earlier chemistries.
Was this a thing on S/X? First time I've heard this. Or do you mean other types of batteries entirely?
I have a 2020 LR Model 3. I bought it in March and it is supposed to be getting 322mi. I never charged it to 100% until today. It is stating only 307mi. I only have just over 3000 miles on it. This is a 5% loss in range if the numbers are correct. I'm a bit concerned. Running 2020.28.6. I usually charge the battery to 80%. I only charged to 100 because there maybe rolling blackouts soon where I live in CA. I have never let it get down below 100 mi range. Do I need to drain it down to 10 mi or so and then charge to 100%?
Thanks, LG
I should really make this post elsewhere to reference.
So, you're fine, but explaining why is annoying (because of Tesla, not because of you!). They used to rate them at 310mi and "hide" the first few percent of degradation. That is, it would still report 310mi even after some small amount of degradation. Li-ion batteries like those in the Model 3 degrade quickly at the beginning of their life, but this slows down and the batteries degrade much slower after. Like a break-in period, I guess? By hiding this initial sudden and quicker than normal drop (compared to future life of the battery), they avoid a lot of quesitons of range degradation in early ownership.
They now rate them higher, but have no hidden buffer anymore. The result is that you immediately see
any degradation, and a few percent in early life is
expected.
So you're down to 307mi. In "old" terms, this means you've lost just under 1%. In "new" (but technically more accurate) terms, you've lost 4.7%. With either way of looking at it, both of these are normal so far. Comparisons to older vehicles will unfortunately make yours look much worse since the old ones hide that initial chunk of degradation, even if they're actually about the same.
You do not need to do any sort of calibration. Your battery is normal (so far) and the reported reduction is most likely correct. Your current charging habits sound great. Keep on doing what you're doing (but best not to store it at 100% for an extended period of time, in case that was your plan).
