The Nissan Leaf's Owner's manual even states that 120V charging is basically for emergencies and the recommended way to charge regularly is off 240V.
But there's a law in the USA that states that a 240V EVSE must be hardwired to the building. So Nissan recommends that if you buy a Leaf that you also have a 240V home charging station installed by an electrician. In the early days, Nissan would even schedule an inspection of your home to see if one could be installed if you were interested in buying the Leaf.
However, there is a loophole in the law that allows you to plugin a 240V EVSE into an acceptable outlet legally. So now we're seeing some EV manufacturers that have caught on and now offer them. Nissan will now give you a 240V EVSE with a NEMA 14-50 plug if you purchase a new Leaf SL.
__________________
|