Most electric vehicles are required by law to lug around a standard 12V battery even though it’s redundant to the 30-60kw battery pack powering th le rest of it. And they’ll typically cheap out and go with a lead acid battery. On the upside they’ll often wire the vehicle to keep the starter battery topped off so the car actually starts, so those starter batteries tend to last much longer than they do in ICE vehicles
Most electric vehicles are required by law to lug around a standard 12V battery even though it’s redundant to the 30-60kw battery pack powering th le rest of it. And they’ll typically cheap out and go with a lead acid battery. On the upside they’ll often wire the vehicle to keep the starter battery topped off so the car actually starts, so those starter batteries tend to last much longer than they do in ICE vehicles
The law is probably about a 2nd battery for specific systems, not that it has to be a 12v, it’s just that up until now it’s all been 12v.