People leave their e-vehicles to charge unattended. I’ve owned me ebike for 5 months and I charge it at work, where I can monitor it and and I don’t charge it at home.
No problems so far.
The EV was not charging, not running, when it self-detonated.
Mercedes, so was high end, well manufactured and expensive. And it still went KA-BOOM!
They explode or erupt into very hot flames almost instantly. Your monitoring will amount to “oh shit!”
Did you see the video of the guy who carried his battery onto an elevator?
Not being critical but what are you going to do if it has a problem and catches on fire? Sounds to me like the most anyone can do for a battery fire is to watch it burn.