If you actually follow what happened to Hoovie, that $5k job didn't work. He used that vehicle on one of their 'Car Trek' series and it had BMS errors and basic

If you actually follow what happened to Hoovie, that $5k job didn't work. He used that vehicle on one of their 'Car Trek' series and it had BMS errors and basically threw a fit because the batteries were unbalanced. Tesla is right to want the entire pack to be replaced, because having cells with two very different aging characteristics is bad for the battery overall. Obviously there's some batteries that are tolerant of this (Prius' commonly have this repair on their NiMH batteries), but it's not universal.