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+--- Thread: Stay away from Teslas (/thread-518.html)
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RE: Stay away from Teslas - Olgry1 - 07-05-2021
Beautiful car Bruce! I love your license plate.
RE: Stay away from Teslas - Lee - 07-05-2021
More info from cars.com
n a metropolitan area like Chicago, it’s possible to use Supercharging regularly because there are so many locations, but home charging is really the best way to do EV ownership. Tesla warns in its owner’s manuals to minimize the use of DC fast chargers, like Supercharging, for the sake of optimal battery health. In addition, DC fast charging can be expensive.
At home, the fastest a Model Y can replenish its battery is 42 miles of range per hour, using the car’s maximum 11.5 kilowatts, a Tesla or equivalent wall unit, and a compatible 240-volt circuit providing up to 48 amps (a 60-amp circuit breaker). At a more average 24 amps, like you’d find on a standard 240-volt clothes dryer circuit (a 30-amp breaker), you’d be able to charge at 21 miles of range per hour. That’s a difference of adding 250 miles of range in six hours or 12 hours, both with charging systems classified as 240-volt Level 2.
The Model Y comes with what Tesla calls a Mobile Connector, which has a pretty robust 32-amp rating you can tap into by purchasing an appropriate short adapter cord for use with a 240-volt outlet (the plug determines the current and, thus, the charging rate). It comes with a 120-volt adapter for trickle charging at 3-4 miles per hour. Good for 29 miles of range per hour, this unit might be all you’ll need.
Home charging can vary wildly from house to house depending on your electrical setup, and one advantage Tesla has over other EVs is how many amperage settings it provides, allowing you to charge on a variety of 120- and 240-volt circuits. The charging rate is selectable via an onscreen Energy Display, where you can change the charging rate by single digits to accommodate whatever circuit you might encounter. This maximizes the charging speed when possible and cuts it down when the circuit is shared with another car or appliance. The Model Y will even learn a location’s settings and remember them when you return.
Supercharging is ideal when on a road trip or on the go; 250-kW Superchargers aren’t uncommon in our area. Other common speeds are 150 kW and 72 kW. How quickly these DC fast chargers add miles will vary by charger and your battery’s state of charge. In our testing, we added 127 miles of range in 50 minutes on a 250-kW Supercharger, though that was with a battery not at an ideal state for the fastest charge rates: It started at over 50% and stopped at full
The fastest charge times come with lower battery levels, and the rate slows considerably as the charge level nears full; we never saw a rate above 70 kW during the charge referenced above. Case in point: We hit a charging rate as fast as 127 kW on a slower, 150-kW Supercharger when going from a quarter-full battery up to 90%; that charge added 198 miles in 40 minutes. Supercharging cost us 31 cents per kilowatt-hour, or $15.19 for the replenished 49 kwh. At home, the same charge would have cost $6.51 at the national average rate of 13.29 cents per kwh, but it would have taken at least 4.7 hours.
In our experience, we haven’t been able to charge faster than 80 kW on a DC fast charger with the ID.4 or the Mustang Mach-E, even though those vehicles are rated for 125 kW and 150 kW, respectively.
RE: Stay away from Teslas - MrVvrroomm - 07-05-2021
We do most of our charging (level 2) at home via Tesla wall charger 220/240v. We charge at a rate of about 40 miles/hr.
Tesla Superchargers (Level 3) are DC powered. It says we can get 150 miles of range in 15 minutes. Range is range. 70 mph shouldn't adversely affect the range. 100 mph will affect it.