On May 13, 2015, at 5:57 PM, Jamie K via EV <[email protected]> wrote:
> It's the outliers that you have to accommodate. Yes, but not necessarily with rapid charging. When 200-mile ranges become the norm, as is promised soon -- say, a 40 kWh (usable) battery in a (conservative) 200 Wh / mile car -- the situation becomes moot. Put 150 miles on the car in an unusual day. Put "only" 70 miles back in the car in a shortened overnight charge. The battery isn't full, but you've still got 120 miles of range. Do your normal (but still more than average) 40 miles the next day; down to 80. Put another 70 in overnight and it's back to full. At no time did you have less than 50 miles of range, and all your charging was at L1 rates only while you were in bed. Will that handle cross-country road trips? No. Can you drive to Grandma 200 miles away at the end of the day after a 40-mile round trip commute? No. If you need to do that sort of thing often or without warning, you'll need something more. But most people will look at that and decide they can pay exorbitant rates at somebody else's rapid charger the once or twice a year that sort of thing happens, or rent a car, or otherwise manage, rather than spend thousands on a dedicated charger. Of course, if your car can only go ~60 miles on a charge and takes a lot of Wh to do so, range anxiety starts to set in and rapid charging is a real way to assuage it. But if you can be confident that you'll wake up every morning with more miles in the "tank" than you'll need to drive, range anxiety vanishes. ...not to mention that rapid charging tends to shorten battery life.... b& _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
