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Chinese EV maker BYD says new fast-charging system could be as quick as filling up a tank
(www.theguardian.com)
This is a most excellent place for technology news and articles.
There is a company that does this in China. You lease the battery, and pay roughly the same amount as a tank of fuel to swap it, so not a cheap process, and it only works on a small number of vehicles. They're also losing money hand over fist, and aren't likely to last very long.
Also, a long trip is precisely when I need all my trunk space.