Ford hitching up to battery-equipped trailers for extended EV range
Towing with an electric vehicle (EV) can dramatically reduce range, making battery-powered cars unsuited to long-distance holiday trips. Ford and other companies are looking at equipping trailers and caravans with batteries to provide extra juice.
United States Trademark Office General Motors Electric Vehicle Battery Powered Cars Bidirectional Charging System
Source: timeslive.co.za