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I think you're wrong. Most electric cars also have a 12 volt regular battery for the in car electronics and the motor battery is isolated from the rest of the c
by drcross 10y ago
I think you're wrong. Most electric cars also have a 12 volt regular battery for the in car electronics and the motor battery is isolated from the rest of the car. With that said I don't know how it's charged.
- mikeash 10y agoYou could leave the car "on" to avoid that problem. Teslas will top up the 12V battery from the main battery even when the car is "off," but I don't know how other cars do it.