If that is case, then Tesla certainly wouldn't have a problem providing a 500k mile & 15 year warranty on the 4680 batteries, right? After all that's only a fraction of the above stated miles and age, and they would be able to use that confidence to sell a lot of cars. Battery cycle life can be tested in a lab. Age is more tricky, and "gazillion" is just a bit of hubris. I'd like to see some actual statements from the manufacturer regarding any changes in battery durability, and I haven't seen any.Sandy Monroe stated that the 4680 will last a gazillion years, and he would know.
Plus, in the video showing off the 4680, tesla played a lyric in the background “i will go a million miles” Seems pretty reasonable to assume that 4680 batteries will last many many decades and for a million miles due to improved heat discharge.
Can anyone tell me why I am wrong to think this?