Battery-powered

I can't wind up my watch. It's battery-powered.

Electric vehicles are gaining attention as an option for improving air quality and lessening United States dependence on imported oil. Research and development is under way on advanced battery and fuel cell technology and automakers are stepping up efforts to design electric vehicles for fleets and personal use. While today's technology is new, battery-powered vehicles have been around for a long time. Electrics flourished before the rise of the gasoline automobile and some 50,000 electric vehicles were in use in the United States by 1912.

E-cigarettes contain nicotine, which is addictive, but they do not contain tar or many of the other substances in traditional cigarettes, which make them deadly. Battery-powered e-cigarettes turn liquid nicotine into an inhalable vapor.

"These next-generation trams are battery-powered, and designed to operate on new sections of the line between Grand Central and Hagley Road which are free of overhead cables," said West Midlands mayor Andy Street. [...] Catenary-free testing has taken place on the Centenary Square extension; this was the first time battery-powered trams had operated in the UK.