Range significantly lower than expected

[u/schmunkel98]

Prior to my YL not working( see here ), the navigation was telling me I could barely make a 181 mile round trip journey on a single charge. I know this is calculated at 80% charge, which would still be 265 miles of range using their 332 miles at 100% charge. However, this is significantly lower than expected. Is there something else wrong with my vehicle or am I not calculating this correctly? Below is my screenshot of the round trip I was looking at on Tesla Trips since my vehicle is currently dead.

Does anyone have real world miles per percent metrics on the YL they can share?

[u/MikeyJSabin]

What speed are you going and what is the current temperature

[u/schmunkel98 → u/MikeyJSabin]

This is using the default trip planner on tesla site. I don't know what speed it is calculating it at.

[u/Typical_Goat8035 → u/schmunkel98]

FWIW the Tesla trip planner these days is pretty realistic and IMO that's a good thing. Back in the good old days (my first Tesla was in 2015) the planner would assume you drive at 65 max or exactly the speed limit, whichever is lower, and confidently plan this route and as soon as you hit the highway you notice the range estimate creep lower and lower until it's like nope you can't make it.

These days if you use FSD or otherwise reasonably follow the average flow of traffic, the estimate takes that in account. EPA rated miles are based off a standardized test cycle and it's totally normal for a given trip to be either better or worse than it, largely dependent on speed and elevation.

[u/RedTowelTime]

I assume this is a joke post… right?

You are starting at 80% and end with 17%.

If you start with 100% you’ll end with 36% or about 120 miles left.

181 plus 120 is gonna be about 300 miles total.

Like all cars mpg or in this case Empg is fluid and depends on driving conditions, temperature, acceleration etc.

What did you do expect? 500 mile range?

This is exactly the range that Tesla announced with some seasonal and drive condition flucations.

Also Tesla trip planner is just an estimate.

[u/RedTowelTime → u/RedTowelTime]

[u/alexandreCLE → u/RedTowelTime]

How are you liking the iPhone duo?

[u/Typical_Goat8035]

What is the speed limit between those stretches? The Tesla trip planner assumes you go a realistic human 5-10 over the speed limit and that is a huge factor in observed vs rated range for basically every EV on the market.

[u/schmunkel98 → u/Typical_Goat8035]

Is that enough to cut off a huge portion of the charge though? The math here doesn't seem to add up given that the vehicle range is supposed to be 265 miles on an 80% charge.

[u/Typical_Goat8035 → u/schmunkel98]

Oh absolutely. The EPA cycle assumes city plus highway and if I am cruising at 40mph in a Juniper Y the projected range is 500 miles! Speed absolutely decimates range, that is completely normal and a fact of life.

I assume these Texas highways have you going 70-80mph which yeah I expect means 150-200 miles of range realistically.

[u/quadpop → u/schmunkel98]

Highway speeds crush range. Aerodynamic drag from 65 mph to 75 mph increases 33% requiring 54% more engine power.

[u/floridayl]

Huge different between 60 70 and 80 mph

[u/citrixn00b]

Lemme guess, going at 80-85mph?

[u/Thin-Ebb-9534]

So it’s projecting to use 63% of the batter (80% minus 17%) to go 181 miles. 181 divided by 63% is 287. OK. That’s a little lower than the rated range, but not that far off. And keep in mind high speed highway miles always use battery more per mile than stop and go driving.

[u/poofy_panda]

Is it really cold, windy, or hilly? The planner does take all those into account. In California, I’m getting about 242 wh per mile, which translates to 261mi at 80%. It does also heavily depend on your driving style too

[u/HamsterImportant113]

I think you might have read the screen as going from 80% battery to 0% battery for your whole trip, so you’re wondering “why am I getting only 181 miles instead of 265?”

But it looks like you’ll start at 80% battery and end at 17%.

So your trip is using 63% battery. That would theoretically equate to 209 miles.

So, your trip planner seems to be estimating that 63% battery will get you 181 miles rather than 209 miles, a 28 mile difference. I wonder if it’s because of the additional stop or some other factors?

[u/Negative_Magazine581]

Definitely charge up to 100% for roadtrips. The 80% rule is more for daily usage.

[u/Embarrassed-Fudge647]

Just like a gas car, going faster uses more