BMW AG and Porsche unveiled a charging station that in less than three minutes can jolt electric vehicles with enough power to drive 62 miles -- pushing ahead of Tesla Inc. in the race to make battery-powered cars more convenient. The ultra-fast prototype charger has capacity of 450 kilowatts, more than triple Tesla’s Superchargers. Test vehicles developed to take that much power were recharged to 80 percent capacity in 15 minutes. Tesla’s stations need about 30 minutes for a similar charge, according to its website.
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