If they were designed to do that from the start maybe. But usually low level stuff like battery management wouldn't be accessible to the main updatable OS. A lot of it isn't even software controlled, but physical parts designed to pop before things catch fire.

Not sure that would be possible on demand, but... Yeah, there are tons of options there. Absolutely terrifying.

For context, for a short while I wrote SW for auto BCM's albeit the security stuff not the drive your batteries stuff.