What Is Your Rated 100% Range?

[Beetlebug62]

My 2018 Model 3 did this for 6yrs, before it started dropping below the EPA-rated 310mi. I sold it to my nephew a week ago.

310mi and 79kWh was the original EPA-rating and battery size. The app developer of Stats was using the api that was temp-sensitive, so you see drops in the chart, which was due to winter temps. The 310mi being only better than 93% was due to the fact that subsequent Model 3's started with higher range, and were lumped together based upon mileage. I no longer use Stats with my CT, as the developer started to charge a subscription, even though I bought it way back in 2019.

Because of that, I follow the same charging strategy as with my Model 3. Whether it helped, I don't know, but I doubt it hurt.

Basically, I set my charge limit to 60% for my daily use. I typically drive around 20mi a day. For roadtrips, I charge to whatever level is required. If it's 100%, then I'd charge up to 100%, but generally, I don't leave it sitting at SOCs above 80%. Why?

I remember 6yrs ago, reading a battery article mentioning 2 things: one, lithium plating, and cathode cracking. There didn't seem much I could do about lithium plating, and it seemed to mostly affect supercharging speeds, so I ignored it. Now, cathode cracking occurs at 3.92v, and I thought I'd try to minimize that, by not charging past 3.92v for daily use, and if I had to charge past it on roadtrips, keep it dynamic. I guesstimated 3.92v was around 63% SOC, so I chose 60% as my charge limit. Whether it works, dunno, but it doesn't affect me one way or the other.

I've only had my CT for 4 ½ months, so, barely any time at all; and zero change in range.

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[HaulingAss]

Percent seems more accurate

Both reporting figures have exactly the same accuracy, it's just a matter of knowing what each figure is telling you. In other words, they are both telling you exactly the same thing, just in different units (% of kWh remaining vs. miles of rated range remaining).

I use both, depending upon the situation. I tend to leave it on percent but often check miles remaining so the math remaining is one less step. I often use miles remaining and multiply it by 0.9 or 1.1 depending upon whether I think the remaining miles will require a bit more or less energy than the rated efficiency.

I bet there is more than one new owner out there that doesn't know you don't have to go into the menu to change the units, you can just click on the number on the main driving screen to switch back and forth.

 

[hemiarch]

Both reporting figures have exactly the same accuracy, it's just a matter of knowing what each figure is telling you. In other words, they are both telling you exactly the same thing, just in different units (% of kWh remaining vs. miles of rated range remaining).

I use both, depending upon the situation. I tend to leave it on percent but often check miles remaining so the math remaining is one less step. I often use miles remaining and multiply it by 0.9 or 1.1 depending upon whether I think the remaining miles will require a bit more or less energy than the rated efficiency.

I bet there is more than one new owner out there that doesn't know you don't have to go into the menu to change the units, you can just click on the number on the main driving screen to switch back and forth.

Yeah. That’s more or less what I do nowadays too. I haven’t gone as far as adding or subtracting 10% but that’s a good idea. I’m going to try that.
I just usually put it in the category of “believe it” or “don’t believe it” in my mind.
For example, one of my more frequent weekend trips is from Phoenix to Flagstaff which is a substantial elevation gain but also a drop in temp so the ac doesn’t work as hard. It’s a fairly complicated calculation the car just isn’t very good at. I know from experience that the trip up is typically a major overestimate in range and I should stop and charge if I want any useable range while I’m there whereas the trip back is a substantial underestimate and I can skip the recommended supercharger and still make it home ok.
Good education point about pressing the actual battery display on the top left corner of the screen in case anyone doesn’t know that. That’s sort of what I meant about not doing it for years on the model x. Never seemed important enough to menu dive for.

 

[eswimm]

Do most of you all prefer to display miles or percentage when driving? Just curious.

Miles; it gives 2 pieces of information, battery state of charge and capacity. Percentage only gives state of charge, completely masking capacity changes. There's no sense fretting over the inevitable degradation, but I still want to be alerted to unexpected changes.

 

[HaulingAss]

Miles; it gives 2 pieces of information, battery state of charge and capacity. Percentage only gives state of charge, completely masking capacity changes. There's no sense fretting over the inevitable degradation, but I still want to be alerted to unexpected changes.

Very good point, I completely missed that in my previous answer (saying both numbers are telling you exactly the same thing, clearly false). Our Tesla don't have enough range loss for that to matter very much (at least in the manner in which I use the % SOC remaining), but I can see how someone who used % SOC remaining to calculate distances could be blind-sided.

The miles of rated range figure is the most accurate number, unless you already know how many kWh your pack has lost over the years.

 

[HaulingAss]

Yeah. That’s more or less what I do nowadays too. I haven’t gone as far as adding or subtracting 10% but that’s a good idea. I’m going to try that.
I just usually put it in the category of “believe it” or “don’t believe it” in my mind.
For example, one of my more frequent weekend trips is from Phoenix to Flagstaff which is a substantial elevation gain but also a drop in temp so the ac doesn’t work as hard. It’s a fairly complicated calculation the car just isn’t very good at. I know from experience that the trip up is typically a major overestimate in range and I should stop and charge if I want any useable range while I’m there whereas the trip back is a substantial underestimate and I can skip the recommended supercharger and still make it home ok.
Good education point about pressing the actual battery display on the top left corner of the screen in case anyone doesn’t know that. That’s sort of what I meant about not doing it for years on the model x. Never seemed important enough to menu dive for.

For trip planning purposes you should be using the trip planner, not the miles of rated range figure constantly displayed near the top of the screen. Because the trip planner takes into account elevation changes, current temperatures, wind, accessories you may have added to your car, tire pressures, etc. It's uncannily accurate (although it cannot take into account driving speeds that haven't happened yet).

 

[eswimm]

For trip planning purposes you should be using the trip planner, not the miles of rated range figure constantly displayed near the top of the screen. Because the trip planner takes into account elevation changes, current temperatures, wind, accessories you may have added to your car, tire pressures, etc. It's uncannily accurate (although it cannot take into account driving speeds that haven't happened yet).

This. While I prefer rated range display, driving of any significant distance is all about charging stops and arrival/departure percentages in the nav. Tesla's trip planner is one of their strongest features and I'm glad they continue to improve upon it.

 

[Thunderstrike44]

2024 AWD CT and mine tells me 354 miles at 100%, now I never charged that high yet, only up to 90% twice and all the rest has been up to 80% 261 mile it says most of the time varies from time to time a little not sure why. The Longest I have driven it so far was 262 miles and a single 90% charge, in one day and made it home with 11% battery....Sweating it the last few miles Lol.

 

[GmP]

Just back from a 5000 mile round trip. Use only superchargers to max 80%. Back at home I charged to 100% to see the range it would report: 337 miles.

During this trip the 80% range reported was a fairly constant 268 miles.

The reported average kWh/mile over the 5000 miles is 385.2 (trip A). Slightly higher than my one year total mile (17000) average of 362.1 Likely because from these 5000 miles most of those were freeways (i40 east, i10 west) with 70 or even 80 mph speed limits.

 

[ABILISK]

@GmP might want to redact or crop out your location. The media watches this forum closely and loves spreading the hate.

 

[GmP]

@GmP might want to redact or crop out your location. The media watches this forum closely and loves spreading the hate.

Thanks for the warning; and updated the pics.

 

[ABILISK]

Thanks for the warning; and updated the pics.

NP. Need my Cyberbrethren staying safe.

 

[REM]

Do most of you all prefer to display miles or percentage when driving? Just curious.

Switch to percentage, and never look back. You don't have mileage as a metric on your phone or any other electronic device, so is helps you to conceptualize it far better.

 

[Speedr]

Just got back from a 2,200+ trip. Mostly Supercharged, but with a few overnight destination charges as well. Mostly to 90%, but a few 97% charges (both Supercharging and Destination). On all occasions of the the 97%, we left immediately once it hit 97% so it didn't stay there long. Once home, our early (sub 2,000 VIN) Foundation AWD is still showing the original 318 miles capacity (since it uses AT tires).

BTW, road tripping in this is such a breeze with FSD. We went 12 hours the last day, and my wife offered to "drive", and I said, no, I'm good. Not much difference between driver and passenger except being able to surf/doom scroll on your phone...

 

[RUREDEIAM]

2025 AWD 328 miles when I picked it and still 328 miles 3 months later.

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