So why are analysts
hung up on the million mile battery? It could "could profoundly change the auto business model," they say.
I don't see it.
If there are Robotaxis working 12 hour days, sure, a million mile battery makes a difference. Someday, I guess. But in the mean time...
This talk of someone buying a car and then keeping the battery to install in their next car -- that's just nuts. The battery is not THAT big a fraction of the price of the car, and by the time you get a new car, likely there will be better batteries available than what you had in the old one. Not to mention the battery probably won't be physically compatible with your next model (form factor, specific wiring and cooling connections and BMS and all). Would it make sense to keep your smartphone battery to install in the next one?
It could keep a used car functional for longer, but with so much tech in a car, who wants a 20 year old model? Do you want a 20 year old smartphone with great battery life? I don't think so.
I can see enabling V2G with many more lifetime cycles available. Except this requires house-side infrastructure too, and not just a Tesla-branded charging unit, but a way to switch off the grid-to-house connection -- so a major electrical installation. I would love to be able to use my car battery as whole-house backup, but this seems like a pretty long-term play to get any significant uptake.
I can see taking the battery out of an end-of-life car and moving it to stationary storage to live out the remainder of it's "million miles." But what is this worth, a couple thousand per car, and only once a substantial number of Teslas start reaching end-of-life? Another long-term play.
A million mile battery would be a nice indicator that Tesla still has a R&D edge, I guess.
But at Battery Day, I'm WAY more excited to hear about how they're going to scale battery production. Why do the analysts seem oblivious to this?