4 ms·

How long does it take to charge this thing?

Aaargh20318 5y ago
Does it really matter if it has a range of 1200 kilometers ? I would have to charge this car once every 3-4 years or so.
- dempseye 5y ago
  I would have to charge it every 3 weeks.
- imstil3earning 5y ago
  sounds like you dont need a car
  - Aaargh20318 5y ago
    It’a convenient to have when I need it. I have a tiny car that cost me very little in taxes and insurance. Slightly more than a car sharing subscription would cost but available whenever I want without having to reserve it in advance.
- djrogers 5y ago
  If you drive 300Km per year, you probably shouldn't own a car.
masklinn 5y ago
Twice the capacity, twice the charge time (more or less).
mbauman 5y ago
~700 miles is the magic point at which charging times can be significantly extended to simply be overnight.
- masklinn 5y ago
  Problem’s without fast charging many EVs are already there, even in europe. A standard plug is 3.6kW, overnight that’s under 30kWh (probably significantly so as charging slows down a lot above 80%). To charge a model s 100 overnight you need a 22kW charger (3-phase 400V 32A). In europe that’s the biggest you can get in a residential setting I think. For double that you’d need a fast DC charger, I don’t think that’a available for residential use.
  - vel0city 5y ago
    I'm a bit confused by your need of 22kW to get "overnight" charge of 100kW. Wouldn't you have that 100kW in <5 hours with a 22kW charger? I would imagine most people think of "overnight" as >5 hours, probably closer to 8. So a 22kW charger is way better than overnight in those markets where that's reasonably available. You'd get pretty close to "overnight" charging in the US as well. Its often not too hard to add a 48A 240V EVSE into a garage here, 8 hours would get you ~92kWh of charging power. I'm not entirely sure what charging efficiencies look like on a Model S, and 92kWh is only 92% of of the battery, but chances are you weren't pulling into your garage at 0% charge anyways.
    - masklinn 5y ago
      > I'm a bit confused by your need of 22kW to get "overnight" charge of 100kW. Wouldn't you have that 100kW in <5 hours with a 22kW charger? Yes. Because 5 < 8 it works for an overnight charge. The chargers I’ve seen below that are 11kW, which is not sufficient, hence “you need a 22”, because the model below that does not suffice. Though it is of course possible intermediate models do exist and I’m unaware of them. Tho I guess it would make sense for american residential power supply to top out somewhere inbetween. And do remember, charge speed is not constant and slows down drastically as levels close in on full. > You'd get pretty close to "overnight" charging in the US as well. The context of the discussion is the ability to charge a 200kW battery overnight yes? My point is overnighting 100kW is already a pretty heavy requirement. Although I’m not sure that’s much if an issue, doing >700mi multiple days back to back in a car and going home every time seems quite the rare use-case, usually it’s more of a road trip situation so you could find fast DC stations on the way and your overnight would not be critical.
etaioinshrdlu 5y ago
Charge current can be scaled with battery capacity, so it should be the same as any battery of the same chemistry if you have a powerful enough charger.
whatever1 5y ago
How much does it take to cool this thing is my question
olyjohn 5y ago
Probably twice as long as the battery it replaced (assuming twice the range). You can still stop and recharge every 300 miles if you want to. Ultimately you're gonna spend the same amount of time charging to get the same distance. This just means you could go out 300 miles and back without stopping for a charge at all. The advantage of this though is that you can at least start with 600 miles of range from your home. You'd probably only ever have to charge it overnight, because that's a solid 12 hours of driving. So long as your hotel has a charger you can use, you're basically never stopping to fuel up on a road trip as a single driver.

Aaargh20318 5y ago

Does it really matter if it has a range of 1200 kilometers ? I would have to charge this car once every 3-4 years or so.

dempseye 5y ago
I would have to charge it every 3 weeks.
imstil3earning 5y ago
sounds like you dont need a car
- Aaargh20318 5y ago
  It’a convenient to have when I need it. I have a tiny car that cost me very little in taxes and insurance. Slightly more than a car sharing subscription would cost but available whenever I want without having to reserve it in advance.
djrogers 5y ago
If you drive 300Km per year, you probably shouldn't own a car.

masklinn 5y ago

Twice the capacity, twice the charge time (more or less).

mbauman 5y ago

~700 miles is the magic point at which charging times can be significantly extended to simply be overnight.

masklinn 5y ago
Problem’s without fast charging many EVs are already there, even in europe. A standard plug is 3.6kW, overnight that’s under 30kWh (probably significantly so as charging slows down a lot above 80%). To charge a model s 100 overnight you need a 22kW charger (3-phase 400V 32A). In europe that’s the biggest you can get in a residential setting I think. For double that you’d need a fast DC charger, I don’t think that’a available for residential use.
- vel0city 5y ago
  I'm a bit confused by your need of 22kW to get "overnight" charge of 100kW. Wouldn't you have that 100kW in <5 hours with a 22kW charger? I would imagine most people think of "overnight" as >5 hours, probably closer to 8. So a 22kW charger is way better than overnight in those markets where that's reasonably available. You'd get pretty close to "overnight" charging in the US as well. Its often not too hard to add a 48A 240V EVSE into a garage here, 8 hours would get you ~92kWh of charging power. I'm not entirely sure what charging efficiencies look like on a Model S, and 92kWh is only 92% of of the battery, but chances are you weren't pulling into your garage at 0% charge anyways.
  - masklinn 5y ago
    > I'm a bit confused by your need of 22kW to get "overnight" charge of 100kW. Wouldn't you have that 100kW in <5 hours with a 22kW charger? Yes. Because 5 < 8 it works for an overnight charge. The chargers I’ve seen below that are 11kW, which is not sufficient, hence “you need a 22”, because the model below that does not suffice. Though it is of course possible intermediate models do exist and I’m unaware of them. Tho I guess it would make sense for american residential power supply to top out somewhere inbetween. And do remember, charge speed is not constant and slows down drastically as levels close in on full. > You'd get pretty close to "overnight" charging in the US as well. The context of the discussion is the ability to charge a 200kW battery overnight yes? My point is overnighting 100kW is already a pretty heavy requirement. Although I’m not sure that’s much if an issue, doing >700mi multiple days back to back in a car and going home every time seems quite the rare use-case, usually it’s more of a road trip situation so you could find fast DC stations on the way and your overnight would not be critical.

etaioinshrdlu 5y ago

Charge current can be scaled with battery capacity, so it should be the same as any battery of the same chemistry if you have a powerful enough charger.

whatever1 5y ago

How much does it take to cool this thing is my question

olyjohn 5y ago

Probably twice as long as the battery it replaced (assuming twice the range). You can still stop and recharge every 300 miles if you want to. Ultimately you're gonna spend the same amount of time charging to get the same distance. This just means you could go out 300 miles and back without stopping for a charge at all. The advantage of this though is that you can at least start with 600 miles of range from your home. You'd probably only ever have to charge it overnight, because that's a solid 12 hours of driving. So long as your hotel has a charger you can use, you're basically never stopping to fuel up on a road trip as a single driver.