2023 Model X Long Range- 80 mph range

[Mindama]

Looking to buy a 2023 Model X LR with 20" tires. I've read a bunch of posts about 80 mph range that have been helpful and I know that year built, weather, hills, tires, Plaid, AC all impact the real world range but I have a specific question. I travel in the summer about 350 miles (99% highway) about 10-12 times a year, because I take the trip so often I mostly don't stop as I just want to get there. I know I won't be able to get their without stopping but my specific question is if I have a 2023 Model X LR with 20" tires and it's all summer driving with flat farmland and if I drive 80 mph what do you think my real range would be at 100% charge now and 5 years later.

I ask because there is a 250 kw supercharger about 230 miles away. Would I comfortably be able to get there for the next 5 or so years without any range anxiety? The supercharger before that is about 160 miles away and don't love the idea of stopping then and having to charge from say 60% to 90% at very slow speeds or having to stop twice.

Thanks for your help in advance.

 

[Mensra]

At 80 miles an hour, 230 miles is a maybe. Not a definite yes not a definite no. It depends on so many additional factors but you’re right on the edge of the expected range at those speeds.

 

[SabrToothSqrl]

Following as my route is about 200 miles at 80 as well.

this is a solid start:

looks like he got 331 miles at 70 MPH.

 

[DCGOO]

At 80 miles an hour, 230 miles is a maybe. Not a definite yes not a definite no. It depends on so many additional factors but you’re right on the edge of the expected range at those speeds.

Agree. Doubtful in the winter. Might make it in the summer if the winds are favorable. I usually travel at 80 mph, sometimes as low as 300 - 315 wh/mile. If into a strong head wind, it might be 380 wh/mile. YMMV

 

[Mindama]

Agree. Doubtful in the winter. Might make it in the summer if the winds are favorable. I usually travel at 80 mph, sometimes as low as 300 - 315 wh/mile. If into a strong head wind, it might be 380 wh/mile. YMMV

Very Helpful so if I assume a usable battery pack of between 90 and 95 Kwh if I use your low end and your strong headwind is this the right way to think about range? Meaning I could check the weather and know if I have a headwind and plan accordingly (drive slower to keep it under 380 w/mi or stop earlier).

	Tailwind				Headwind
Useable Batter Capacity	90,000	95,000		90,000	95,000
W/Mi	300	300		380	380
Est Range	300	317		237	250

 

[posity]

You are overthinking it. Knowing you have a supercharger @ 160 miles, then all you do is leave and see what happens. If you get to the 160 and don't have enough range to go the extra 70 miles, stop and charge for a few minutes - or longer, if you are checking emails, etc. Driving 80 MPH, you'll be at 35-40% remaining charge when you stop anyhow, which is very good in terms of charging rate. The superchargers tend to be right off the hiways, so even if you decide you just want to squirt in a little bit extra charge at an intermediate location, it essentially costs you no extra time charging at additional superchargers. When I am really in a hurry, I charge at more locations so each one is charging with the battery lower, which makes for the fastest charges. I usually find that I spend more time checking emails, hitting the head, grabbing food than I expected so end up with more charge at each location than I really need.

BTW, for me driving 80 MPH, rule of thumb is to take the rated 'range' and multiply by 2/3: that's how far I can comfortably go. Lots of variables, but 25 - 33% range loss (25% summer, 33% winter) is where I usually end up at that speed.

 

[DCGOO]

You are overthinking it. Knowing you have a supercharger @ 160 miles, then all you do is leave and see what happens. If you get to the 160 and don't have enough range to go the extra 70 miles, stop and charge for a few minutes - or longer, if you are checking emails, etc. Driving 80 MPH, you'll be at 35-40% remaining charge when you stop anyhow, which is very good in terms of charging rate. The superchargers tend to be right off the hiways, so even if you decide you just want to squirt in a little bit extra charge at an intermediate location, it essentially costs you no extra time charging at additional superchargers. When I am really in a hurry, I charge at more locations so each one is charging with the battery lower, which makes for the fastest charges. I usually find that I spend more time checking emails, hitting the head, grabbing food than I expected so end up with more charge at each location than I really need.

BTW, for me driving 80 MPH, rule of thumb is to take the rated 'range' and multiply by 2/3: that's how far I can comfortably go. Lots of variables, but 25 - 33% range loss (25% summer, 33% winter) is where I usually end up at that speed.

I agree about the overthinking. Also always navigate to your destination, or next stop. It will always tell you what you will have left when reaching your destination. That amount is continuously adjusted while traveling, so if conditions change it will let you know far in advance.

 

[SabrToothSqrl]

speaking of the 2023 Model X...
What does the app recommend for daily charge/use?
is it 80% like my wife's Y, or 90% like my 2019 X?

thanks

 

[posity]

Your other question about range degradation over 5 years: my 2018 MX was rated 287 miles new, now 5 years later has only 'lost' 9 miles of range. I do about 45% supercharging (meaning 45% of my driving is highway road trips), around 60K miles on the car. I charge 100% before trips, 80% the rest of the time. I know this is only a sample quantity of one vehicle, but I certainly have no issue at all with battery degradation over a 5 year period.

To re-iterate what @DCGOO said, since it appears you do not already own a Tesla, you will ALWAYS use navigation when driving any distance because the software then tells you how much charge you will have when you reach your destination: the software is very good at dynamically predicting your range when you give navigation a destination. Once you get the hang of always using navigation and trying any 'what-if' scenarios at selecting alternate charging stops, the amazingly accurate dynamic range prediction is fantastic at dealing with range anxiety.

When you say 'show superchargers', the navigation screen will show all the superchargers on your route and how busy they are (how many open superchargers are presently available). So navigation's 'Show Superchargers' makes it easy to constantly re-assess where you want to charge on your trip. The software takes a stab at automatically telling you intermediate locations to supercharge to reach your destination, however I tend to modify the intermediate supercharging stops based on
1) How busy the supercharger locations are.
2) Trying to always start charging with a battery somewhere between 20-50% at the start of charging - to get the fastest charge rates.
3) Planning for breakfast/lunch/dinner/restroom breaks to occur at supercharger locations.

I plan every trip to arrive with around 20% charge. When I first started using the Tesla, I didn't sweat arriving with only 5% charge, but then we had that one trip up a deserted 60 mile mountain road where we reached the 50 mile mark and there was a SWAT team in the middle of the road dealing with some guy shooting at random people driving by. So I had to turn around, retrace the 50 miles, and find the first place with an L2 charger, arriving with just 9 miles of range left. It was a Casino and my spouse went inside and won a couple hundred dollars while I waited 1.5 hours for enough charge to get to the next supercharger. So in the end, my close charging call was a good $$ thing!