Comment by rootusrootus

> I can’t change the 12V lead acid battery in my EV

Aside from that not having anything to do with it being an EV, it's worth mentioning that many newer EVs (most of the ones sold, perhaps) use a lithium 12V battery now, not lead acid. So in general they ought to last longer anyway. Plus Tesla, at least, doesn't 'register' batteries the way BMW does.