When the Audi e-tron battery-electric SUV goes on sale next year, its 432 battery cells will drink from a 150-kw charging firehose–a rate quicker than the Jaguar I-Pace or a Tesla Model S. The high-energy battery pack, detailed by Audi in Berlin on Wednesday, has an apt, caffeinated analogy built right into its sandwich layer of lithium-ion…

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