I don't do short trips. My trips are usually 95-250 miles each trip one way. Still bad Wh/mi in winter. And yes range mode always on obviously I know these things been an owner for 3 years now.
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I don't do short trips. My trips are usually 95-250 miles each trip one way. Still bad Wh/mi in winter. And yes range mode always on obviously I know these things been an owner for 3 years now.
Well I didn't see consumption like you did. Maybe because you have the P? Maybe the A/S3's contribute a touch more? Your topography is likely more hilly. Who knows.
And note my VIN, I'm not some new kid attempting to scold the elders. I'm sure even I could learn a few more things about the car. But when it comes to winter, where I used to live was as cold as it gets in the lower 48. It averaged about 15 degrees colder than NY so when someone that lives in a warmer area sees a much higher draw, it's fair to assume you're doing something different than me.
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Tesla tried that with the Roadster but it wasn't very successful because the torque of the electric motor ate the transmissions in short order. Yes, you could design a transmission that would stand up to the motor, but it would add a ton of weight (possibly literally). Another way would be to limit the torque to where it wouldn't eat transmissions. I suspect that wouldn't be very popular.
So I'm a new 70D owner with 21 inch rims. I can also attest that I'm very disappointed with the range in the winter so far during my first week of ownership. I work 50 miles from home and thought the 70D would be enough at 218 miles on 90% charge. I traded in a perfectly good ISF for it. Well even with range mode on, preheating car, and leaving heat on low or even off when I started to develop range anxiety on the way back home - I was down from 90% to 20%. Yes I was driving fast around 75mph with outside temps of 30-40F. I heard the cold and speed effected range, but I didn't realize it could go from 50% expected consumption to 70% real consumption with spirited driving. With that said, the car otherwise is pretty awesome - if considering the 70, maybe get at least an 85 if you drive 100 miles round trip for your commute, driving quickly, like me.
green1
Active Member
You still had 20% remaining... what's the worry? sounds like you had plenty. you claim to have used only 70% of your charge (90-20) to go 100miles. with "spirited driving" and speeds of 75mph (20mph higher than the car's range is rated at)
I personally think you did well.
You didn't use 2x the rated range, you used 1.64x. You said you'd be happy with 1.5x, I think you're close.
218 (it'll fall to 214, that's what the 90% rated of the 70D is) minus 20% of 240 (48 miles) = 170 miles.
21" tires take 3% of range, so from the expected 240 miles you lose 8 miles. You didn't go from 100% down to 0%, so let's say the tires cost you 6 miles.
So you used 164 Rated Miles in 30F weather, with a stop in between so your battery got cold again, going 75mph and you're complaining?
Also if you had hills/etc. you'd use more range.
I agree with green1, you did well.
The rated range is what happens on the EPA test cycle, which doesn't include speeds of 75 mph. Air resistance goes up exponentially with speed--it happens in an ICE too but most people dont pay attention to the drop in gas mileage. Is there any way you could plug in at work in the winter, even to a 120V outlet? Or drive slower, even dropping to 70 mph will make a difference.
green1
Active Member
He got home with 20% remaining. I don't see the need to slow down... He still had lots of range left.
theslimshadyist
Active Member
I'm really new to this stuff but I thought that I would throw this out there. My experience with purchasing new cell phones or laptops that use Li-ion batteries is that it takes several charging cycles for the calibration and break-in period to settle before I see an improvement in battery longevity. Would this "theory" apply to this vehicle as well?
With a 100 mile round trip commute I'd have no problems in my 70D with my 19inch tires.
Heck I think that's ideal for the 70. I wouldn't even be in the yellow, and I'd still be able to do +10 over the speed limit.
Instead my commute is a lousy 9 miles to work, and 9 miles home. If you want to see inefficiency that's where it's at.
SmartElectric
Active Member
It does both.
Change your settings to show percentage instead of rated range. This was suggested multiple times upthread. It's what we use on our Tesla and we find it makes much more sense than showing rated.
The estimated range is on the trip screen. And Tesla also shows estimated battery remaining at destination, and you can choose to show round trip estimated remaining.
I personally don't find the Tesla interface wanting in any way when it comes to these aspects. Much better than the gas cars I've owned, where I constantly had to visit stations in the most inconvenient times (like right in the middle of a short trip where my time was important).
It's awesome to refuel in my garage overnight!! Lovin' our Tesla.
Doing long trip with our 90D, we charge at 90% showing 375km. Weather 3-5C and wet roads 23C inside. We always preheat the car 30 minutes before leaving. Sticking to the speed limits. After the 210km trip not flat at all (Switzerland) the battery is at 20% showing 120km range (90km projected) 230W/km. EV Tripplanner is showing the same result.
In summer we should get about 200W/km at 20C and dry roads.
In summer we should get about 200W/km at 20C and dry roads.
Thanks to all who replied to my post. I was more annoyed that I test drove the car 3 times and no one mentioned how the cold would eat up the battery. The delivery specialist even turned off range mode and regen brakes, even though I told him my commute is 100 miles per day and I drive at least 70 mph, if not 80 mph. He made it seem like since I like to drive fast that those things weren't necessary and would hinder the fun. Then I had major range anxiety when I got to work and over half the battery was gone the first time I took it. Now I've turned those items on and I have over 20% by the time I get home on a daily basis.
byan1232
Member
Hey guys I'm wondering if I tend to drive consistently at 80-85mph, will it significantly impact my range? This is assuming little to no headwinds and normal 60F temps.
Speed greatly affects range. If you scroll down near the bottom of this page to the "Range Per Charge" section, you can play around with speed, temperature, heating/cooling, wheels, etc. and see how much range is affected. Headwinds, tailwinds, etc. will affect range as well but aren't considered using this tool.
The tool only goes up to 70 mph but you can see in the JSON data that they map the speed up to 85 mph.
Multiple people noticed it's useless? Apparently not Tesla though.
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You'd probably lose more in gearing losses than gain from reducing motor RPM.
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You'd probably lose more in gearing losses than gain from reducing motor RPM.
Driving 80-85 will have a major impact on your range compared to driving 65-70.
I am surprised you can regularly go 80+ without getting speeding tickets.
