The only manufacturer that seems to put their money where their mouth is in Hyundai with a lifetime length and mileage battery warranty.
Another example: iPhones have a 1-year warranty but usually last much longer than that.
iPhones are irrelevant to the discussion, lol.
No, it's not. That's why some manufacturers offer much longer warranties than others despite having similar reliability numbers. Warranty terms are driven by the business and encompass a lot more than mean time to first failure.
> iPhones are irrelevant to the discussion, lol.
If warranties were a good approximation of how long things last without repair, why would that only apply in the car world?
> needing any repair
But for the battery, you were talking about when it needed replacement.
Any decision to offer a warranty beyond that is driven by whether it will entice new car buyers to buy the car or to pay more for it.