I was using math to show how they came up with the estimates on the product page (answering the quoted question). Not sure what you're trying to say here quoting my post. 50 kwh in 15 minutes is 200kwh (60 minutes divided by 15 minutes is 4, 4 times 50kwh is 200kwh). Tesla is saying based on the EPA estimate of 412 miles per charge on the 100khw battery of the new Model S, at approx. 200kwh charging rate you will hit 200mph speeds. Yeah I know the math isn't perfect, the usable size of the battery is not 100kwh, the range is not an even 400, but i used rounded numbers to show the math involved in the calculations.
There are obviously many factors that go into not only range but also charging speed. EV range and charging rates are influenced by a lot of things, more so than a typical ICE cars MPG rating. My Model S charging speed/range varied wildly compared to the Spark EV I had and the Bolt EV we have now.
Do you expect Tesla to say "Charging speeds between 1,000 and 100 mph depending on state of charge, temperature, age of battery, and other factors" ??? No, they are going to give a rounded estimate based on averages.
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