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For me, if the charging time can be cut in 3, so that a motorway piss stop takes the battery from 20 % to 80% in sub fifteen minutes, for a 300mile+ range, that is game changing.
(0.6*300 miles * 0.25 kWh/mile) / 15 minutes = 180 kW
There are already cars and chargers that claim to do that, but usually only for beginning of the charging cycle (e.g. 0-60%).
grams
For me, if the charging time can be cut in 3, so that a motorway piss stop takes the battery from 20 % to 80% in sub fifteen minutes, for a 300mile+ range, that is game changing.
And seems possible, nay likely, in 24 months from now.