you are mistaken. Not a single EV or hybrid car uses power directly from the traction battery for the 12 V system.

It depends on your definition. Tesla Model 3 has a dedicated low-current connection to the high-voltage battery that bypasses the main contactors, specifically to power the 12V system.

	▲	eldaisfish 3 hours ago \| parent [-]
		Even those models still include a 12 V battery. The point stands - the traction battery is not a replacement and larger energy source in any car.