Airstream on Saturday unveiled its first all-electric travel trailer, which can use battery power to operate off the grid. Called the Airstream Basecamp 20Xe, the trailer includes a 10.3-kwh battery pack and 3,000-watt inverter powering a 30-amp electrical system, providing onboard power for charging devices from built-in outlets, as well as running an optional air-conditioning system or microwave. A standard induction cooktop powered by a 110-volt outlet can be used inside or outside the trailer. The trailer's 20-foot floorpan includes a dedicated sleeping space at the back and a convertible dinette up front. That idea has been taken up by startups Pebble and Lightship for use in their luxury travel trailers, both of which are scheduled to start production later this year.