Yes, just when will a battery replacement be needed, and what will it cost when that time comes.
I have heard 4-5 years and $7000. There won’t be any govt subsidy for those dollars.
That $7000 to replace that battery could have bought a lot of diesel to run that modern 60 mpg diesel. Some day they may even grow diesel with algae or some kind of genetically engineered Elaeis guineensis.