My 2014 ED stopped taking a charge in June, but we didnt bring it in to the dealership until a week ago or so. They tell me it needs a $6000 battery charger control unit - part N83. Apparently there are no used parts for this and paying $6000 is my only option. Does anyone have any information on this? It seems like a design flaw for the battery charger for an electric car to go bad and to have to pay that much to fix it or else junk the car.