Arguably, it’s a misfeature of Teslas. My BMW i3 has a hard charging cap of 90%. (The UI scales the charge percentage and displays 100% between 90 and 100%)

Arguably, it’s a misfeature of Teslas. My BMW i3 has a hard charging cap of 90%. (The UI scales the charge percentage and displays 100% between 90 and 100%) It’ll regen charge up to “really” 100%, but that would require something like a 5,000-10,000 ft continuous elevation drop, where you just ride the regeneration brake the whole way down. Nissan took a different approach. The batteries on the old Leafs died really prematurely because they didn’t have decent battery management. They fixed it on later models. Anyway, this stuff is mostly a solved problem these days. It would be nice if device manufacturers were compelled to provide an 8 year, 80% capacity parts and labor warranty on all non-replaceable batteries (like the car manufacturers do in the US).