A new battery charger developed by Utility Trailer and Cargobull puts out up to 480 Watts (40 Amps) of power to extend liftgate battery service life.

Range Energy's electric trailer allows fleets to decrease fuel costs without buying new tractors, by adding a battery/motor to the trailer.

The trailers could also be used with zero-emissions technologies like hydrogen- or battery-powered trucks to extend their range and efficiency as they hit the roads.

Range Energy's RA-01 trailer adds EV tech to a standard class 8 trailer to enable hybrid operation without any change to the tractor.

Although the company released a conceptual design in 2022 for a solar-and-battery-powered trailer that could propel itself, that version isn’t there yet. It’s likely to come later.

Traveling the country in the year 2025 is finally as futuristic as we imagined it, with a 77-kWh battery on board.