Was at the Tesla Store today at Roosevelt Field Mall. Salesperson there pointed out graphic on electric cost to charge the battery. The slider had previously gone up to 85. But after latest update it now goes to 99! I think this might be the answer to the Model X range issue. I am stoked.:love:
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It's the charging (in)efficiency. Tesla Charging | Tesla Motors
110V, 12A: 132.6 kWh
240V, 24A: 100.8 kWh
240V, 40A: 99.0 kWh
240V, 80A (duel charger): 98.7 kWh
110V, 12A: 132.6 kWh
240V, 24A: 100.8 kWh
240V, 40A: 99.0 kWh
240V, 80A (duel charger): 98.7 kWh
dhanson865
Well-Known Member
120V, 12A: 132.6 kWh (30% more power used, big penalty)
240V, 24A: 100.8 kWh
240V, 40A: 99.0 kWh
240V, 80A (dual charger): 98.7 kWh
Goes to show that any 240v charge rate is pretty efficient but any 120v charge rate is very inefficient. I just didn't realize the penalty was 30% more power used.
It also shows that dual chargers are faster but not significantly more efficient. After looking at that I'm still good with a single charger, save the money you would pay for a HPWC and put it into the better tires (3% more range) and pocket the difference in cost.
Cottonwood
Roadster#433, Model S#S37
Actually, if you follow the sequence, 60 to 85, then the next battery should be a 110! :wink:
dhanson865
Well-Known Member
If they considered a 40, 60, 85 lineup maybe the jump is gross with more and more buffer in the larger batteries for a smaller net jump. Maybe the next one would be 100 after all.
40 - 60 - 85 - 100
40 - 60 - 85 - 105
40 - 60 - 85 - 110
which looks like the normal progression to you?
I suppose the 110 goes with the whole "goes to 11" meme.
if for no other reason I would seriously consider going with the twin chargers for resale value. Also, the high amperage level 2 stations that the twin chargers need, are less common where you are, but that is likely to change quickly. After owning EV's for just a couple of years, I have never regretted spending more money up front for faster charging, it's not how often you use it, it's how critical it is when you need it most. sitting around for twice as long waiting for the car to charge is lame. you can request the twin chargers without buying the HPWC.
It's not that the charging is inefficient but rather that it takes FOREVER and all the systems have to stay up and running and on while the charging is taking place. Since charging at 120V 12A takes forever, it's all the other electronics staying on that is eating up the juice and thus requiring a longer time to actually top off the battery to full.
roblab
Active Member
If you go by percentage increase, 40 to 60 is a 50% increase, 60 to 85 is about 50%, and the next jump would be more like 120 kWh.
Actually 60 to 85 is 1.4, and to 120 is comparable to that jump. So, 40 (now gone) - 60 - 85 - 120.
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(LMB spouse)
Engineers like round numbers, and 1.414... is a round number to an engineer. Specifically, it's half a binary order of magnitude. So, I always assumed that the next battery would be 120 kWhr and the one after that would be 170 kWhr and the one after that...
Assuming that a 120 kWhr battery weighs about the same as today's 85 kWhr unit, [US] ideal and rated ranges would be around 420 and 375 miles!
Engineers like round numbers, and 1.414... is a round number to an engineer. Specifically, it's half a binary order of magnitude. So, I always assumed that the next battery would be 120 kWhr and the one after that would be 170 kWhr and the one after that...
Assuming that a 120 kWhr battery weighs about the same as today's 85 kWhr unit, [US] ideal and rated ranges would be around 420 and 375 miles!
98 kilowatt hours in the car, 98 kilowatt hours. Turn it on, drive it around, 97 kW kilowatt hours in the car.
97 kilowatt hours in the car, 97 kilowatt hours. Turn it on, drive it around, 96 kW kilowatt hours in the car.
96 kilowatt hours in the car, 96 kilowatt hours. Turn it on, drive it around, 95 kilowatt hours in the car.
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Seems like it.
SCW-Greg
Active Member
Side video from 60 Minutes this week.
Scott Pelley, the correspondent interviewing Elon confesses his wife owns a Model S (for 9-10 months now). He asks Elon why don't they have a car with better range than the 230 miles they see. Here's what Elon says about battery improvements and priorities...
Longer range for the Tesla Model S? - YouTube
Scott Pelley, the correspondent interviewing Elon confesses his wife owns a Model S (for 9-10 months now). He asks Elon why don't they have a car with better range than the 230 miles they see. Here's what Elon says about battery improvements and priorities...
Longer range for the Tesla Model S? - YouTube
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