On Thu, Dec 13, 2018 at 7:43 PM Lee Hart via EV <ev@lists.evdl.org> wrote: > > If fast charging is so vital, how come the market isn't flooded with > fast chargers for cellphones, laptops, power tools, and all our other > battery-operated toys?
?!?!?!?! Umm.... IT IS. The market most certainly is packed full with fast chargers for cellphones. They all advertise how their new 9v wall wart and cable will charge your phone up like 80% in 45 minutes or some such thing. Companies like Samsung have specifically built fast charging into their premium phones. Likewise on power tools. As you might expect, people doing construction burn through batteries on portable tools. So, those chargers tend to be quite fast also - they even have thermal management but only in the form of "we won't charge this battery until it's not hot anymore." Laptops don't tend to have super fast chargers because you can usually use them plugged in anyway so the battery ends up being more like a built-in UPS. So, yeah, fast charging most certainly exists where there is a use case for it. I can see the draw of fast charging for electric cars too. It's true that 90% of the time you don't need it and can charge slowly at home. But, as EVs become more prevalent there will be cases where people have nothing else. In that case if you have to drive 700 miles somewhere then you need some fast chargers. I think the biggest draw for fast chargers are that they fill the gap we currently have where you can recharge quickly with gasoline (only maybe 4 minutes) but you can't do that in an EV. So, people are used to filling up quickly and want to retain that. This is mostly psychological but you can't discount that. Psychological issues are very real and saying "just charge at home" doesn't cut it. People aren't looking for your alternatives, they're looking for ways to do what they want to do. There are many people who won't get an EV until they feel like they can charge it back up anywhere and quickly. Until then they've got their gas guzzler that can do that. _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
