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Saturday, 7 October 2017

Cancel Hold to select Select All Biggest hurdle for e-cars: They take too long to charge

An oft-cited reason people don’t buy electric cars is “range anxiety” — if batteries struggle to take you as far as gas and charging stations are limited in number, the thinking goes, who would want one?


But there is another obstacle: charging time trauma. Compared with a fiveminute pit stop at your local gas station, charging an electric vehicle is a glacially slow experience. Modern electric cars still often need an entire night to recharge at home, and even at a commercial fast charging station, a fillup can take an hour or more.


“Driving long distances and stopping for one to two hours is not something I would want to do,” said Mark McNabb, the chief executive of Electrify America, a Volkswagen subsidiary that is installing charging stations across the US as part of the German automaker’s set- tlement for cheating on diesel emissions tests.


The good news? Charging times will eventually shrink to little more than 10 minutes. The bad news: That won’t be for several years. times to improve.


Two levels of charging are typically available in residential settings. Level 1 is a standard AC outlet that provides between 1 and 1.5 kilowatts of electricity. It takes a Level 1 charger about 30 hours to fully charge the electric version of the Ford Focus, which has a range of 115 miles. Level 2 uses a professionally installed charger connected to a 240-volt AC outlet — the kind used by some large appliances — and delivers between 7 and 9 kilowatts, lowering the charge time to about 5.5 hours.


A new generation of charging points, the first of which are being installed in Europe, offer 350 kilowatts of power. Such a jump would slash charging times to 10 to 15 minutes, depending on the vehicle’s range, according to Charlie Yankitis, director of business development for the German manufacturer Bosch’s electric vehicle unit.

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