Ok. Can you share your calculations with us? You’ve always seemed to doubt the recharging times actual Tesla Roadster owners told you were possible. Now we at least have official numbers from Tesla and soon with have them from actual Model S owners.
“Charging times will vary, meanwhile. Using the most high-power Tesla system could cut times to as little as about 3 to 4 hours, according to the maker. That charger actually requires more current than the typical U.S. home could provide. With a more conventional charger that time could climb to as much as 18 hours, according to TheDetroitBureau.com’s calculations.”
Check out Tesla’s website:
Charging Model S | Tesla Motors
I assume the more ‘conventional charger’ is a NEMA 14-30 at 24A (dryer outlet)? Most people will install a NEMA 14-50 and charge at up to 40A when buying a $90,000 car like this. This is valid even on the base 40kWh car with the single charger. At 24A, it’s 16 hours to completely recharge from empty. Again, you always seem to assume you arrive home empty each time. At the ‘conventional’ 40A, it drops to a little under 9 1/2 hours. If you can install a 100A line to your garage and buy the twin chargers and the Tesla HPC, that is 4 hours 45 min for a full 85 kWh recharge. While I disagree that that’s more power than the typical home can provide (I’ve talked with a contractor I know), anyone spending almost $90,000 on an electric car will likely have their electrical panel upgraded, don’t you think? Again, where did the 18 hours come from? Thanks.