In case you thought cars would become safer as technology developed… rest assured, Tesla is finding newer and ever-dumber ways to make their cars dangerous to occupants (and others).
TL;DR: If you’re in a Tesla and it loses power (like in a fire), the only way to open the doors is often an unlabeled wire behind either two panels or a speaker grill. Tesla owners are DIYing janky rip cords to make that wire easier to pull to escape.
I wouldn’t even feel safe if I had a close electrician friend strip the batteries for use as a house battery.
I’d mount them outside or in our detached shed.
They have a huge safety-orange pull tab that disconnects the two banks of the battery. But even then you shouldn’t operate on them unless you are trained. 350 VDC is no joke.