“as a reference, I find that 13.125 hours of AC Level 2 Charging, are required to sustain *real world 450 mile* daily (mostly highway) runs in 8 hours travel time. (Such as I can do now, with gasoline fuel.)
That, tells me that EV is short haul.”
AC Level 2 is basically 240v home charging. Enroute superchargers deliver MUCH faster charging rates.
Mode 4 is 400 amps at 600 volts. We will soo be looking at full charging in 30 minutes
Actually Tesla is just about there if the car is capable of taking advantage of the new V3 supercharging stations that are capable of dumping 250KWH into the car. The batteries will take the full charge rate for the first 50% to 60% of battery capacity and then start to taper off. There is no longer any power sharing among stalls. The problem is I don't think these V3 supercharging stations are wide spread yet..
Yes, but fast charging decreases battery life, and, even if warrantied, charge capacity and internal battery resistance will degrade faster with repeated high amp recharges, than with slow charging.
Maybe someone here has details on what Tesla specifies in the way of degraded battery performance that would qualify (or not) for free battery pack replacement?
Put another way, if range for the std. model is 263 miles (posts above), is that guaranteed “as delivered”, after 1000 home charges, or after 1000 fast charges? Or after, say, 500 fast charges does one drop down to, say, 200 miles range and somewhat decreased performance otherwise, before the battery warranty kicks in?
Another bottom line is that I’d never accept 30 minute charge time while travelling. It’d have to be 10 minutes, and preferably less, to be acceptable to me. (The only time I go into a gas station is to go to the bathroom, or if the receipt at the pump doesn’t print out, and if travelling on Interstate Highways I usually stop at rest stops for the former. That makes for more quick stops, but better alertness on my part.) Otherwise, I don’t have time to dally at recharge stations for 30 minutes at a time. Or maybe I do, but I have a lot better uses for it (my time.)
10 minute charge times = a heck of a lot of power transfer for ordinary idiots to be handling. Even that Mode 4 you mention is a 240,000 KW “connection”. Once the connectors for a 10 minute charger get a little wear, some real fun can begin. (Yes, safeguards will be built in, but, I have a great deal of respect for and experience with Mr. Murphy in matters electrical.)
None of this is to degrade Tesla’s products: They are quite an achievement and definitely have a place in the market. But, even Elon knows there are some practical limitations, especially when it comes to electrical grid capacity.