Notch EV's full battery to zero range tests

[minivanasatruck]

The 5 seater version with 20/21 tires got 358 miles 100 to 0% battery in 55 degree weather @ 70mph. That seems far lower than the EPA estimate of 450 range. Unless there's significant efficiency loss going from 65 to 70, this seems disappointing overall and within the pack of other car manufacturers' 325-375 miles of range cars.

However, it is only one data point. Let's see what Kyle gets on his tests.

 

[msaunders9430]

I got 331 miles out of my 7-seater GGT on 21/22s (no aero covers), driving at average speed of 70 mph with two passengers. Arrived home with 2% remaining. Stopped once for food/bathroom; didn't charge.

Real world application: NotchEV drove for 6 hrs. straight. I don't see your average driver doing that. No reason to drive battery pack below 10% unless charging options not available 100-10 percent. I suppose that's possible in some areas. DCFC with a Gravity and proper trip planning doesn't have to be something to avoid. Accept it just like fuel/food stops.

 

[dbsb3233]

The 5 seater version with 20/21 tires got 358 miles 100 to 0% battery in 55 degree weather @ 70mph. That seems far lower than the EPA estimate of 450 range. Unless there's significant efficiency loss going from 65 to 70, this seems disappointing overall and within the pack of other car manufacturers' 325-375 miles of range cars.

However, it is only one data point. Let's see what Kyle gets on his tests.

Yikes, that's really disappointing for the 450 EPA version. 55F is slightly cool but not enough for hardly any range loss.

And that's only 70 MPH, not 75 or 80 like our road trips will be. Haven't watched the video yet to see if there's a reason.

 

[sri]

Yikes, that's really disappointing for the 450 EPA version. 55F is slightly cool but not enough for hardly any range loss.

And that's only 70 MPH, not 75 or 80 like our road trips will be. Haven't watched the video yet to see if there's a reason.

He didnt have 1000’s of miles, millage normalizes after driving 1500 to 2k miles i guess. If thats not the case, yes Yikes

 

[dbsb3233]

He didnt have 1000’s of miles, millage normalizes after driving 1500 to 2k miles i guess. If thats not the case, yes Yikes

True. And fresh tires with full tread still. But I'd only expect those factors to cost a few more miles. My hope is that there's an anomaly in his run that cost extra. Be modestly disappointing if typical 70 MPH isn't right around 400 (on the 450 trim). 10% off EPA at 70 would be decent; 20% not so much (in otherwise good conditions).

 

[TahoeMichael]

I think the outcome isn't shocking. Car & Driver seems to be rating the Air at about 80% of EPA range on their 75 mph highway test. 80% of the Gravity's 450 EPA range is 360. In the NotchEV video, he's going 71, not 75. But it was on the colder side, and the m/kWh declined as the night wore on and temperature fell yet farther.

Perhaps more puzzling is the 115.4 kWh consumed, versus the 118 that this forum seems to have assumed is the usable capacity of the 123 kWh pack. If NotchEV's peak m/kWh was maintained across 118 kWh, that'd be 373 miles of range.

Regardless, 359 miles of range seems to be class leading for an EV SUV. I do want to see a 75 mph range test, and am looking forward to other tests being done. I've felt all along that 350 miles of range would be plenty to satisfy me, and I've never expected to get close to 450 miles at highway speeds.

 

[DrLucid]

He didnt have 1000’s of miles, millage normalizes after driving 1500 to 2k miles i guess. If thats not the case, yes Yikes

@sri , I agree with what you said. When I initially bought the gravity it was 2.4 and now it has improved to 2.6 on display.
I do drive fast on a backroad most of the days coming back from work and still @2.6 is pretty good with 22/23 and 7 seats DE

 

[borski]

He didnt have 1000’s of miles, millage normalizes after driving 1500 to 2k miles i guess. If thats not the case, yes Yikes

The manual says 2000 miles.

 

[Ktw13]

On my Air GT commute, the efficiency greatly improves if following other traffic on DDPro compared to no windbreaker in the front.

 

[dbsb3233]

I think the outcome isn't shocking.

Not shocking, but disappointing. Lucids are known for class-leading drag coefficients that are suppose to lose less range at higher speed than other EVs. I hoped for better than the typical 20% loss vs EPA.

358 is still good for a larger EV, of course, and it wouldn't be disappointing if EPA were advertised at 400. But vs 450 it's a miss to me.

But it's only one data point. Hopefully others are closer to 400.

 

[dbsb3233]

358 at 70 probably translates to around 320 at 78-82 MPH (typical interstate speeds in my part of the country). DCFC mid-trip to 80% and drive to 10% makes that a 224 mile leg. Not bad but nothing really special like you'd expect from a 450 EPA car.

Fortunately the charge curve looks really good, so DCFCing further up to 90-95% isn't nearly as time-consuming as many other EVs.

I've got one 273 mile leg between IONNA stations on my frequent Denver-Vegas drives I do that I was hoping to do in a single leg. Might need to add an extra stop if these results hold up. I knew that leg could be iffy.

 

[Bunnylebowski]

@sri , I agree with what you said. When I initially bought the gravity it was 2.4 and now it has improved to 2.6 on display.
I do drive fast on a backroad most of the days coming back from work and still @2.6 is pretty good with 22/23 and 7 seats DE

I’m getting 3.2 mi/kwh combo city and highway on 20/21s which is good for close to EPA on Gravity DE with the 20/21s. It just got colder though over the last few days which dropped it to 3.2, I actually was getting 3.36 when temps were 70-75. Temperature is a HUGE factor, and honestly I’d consider 55 degree temp range test invalid, although it does help you gauge the dynamic range hit for those temps. Interestingly enough the Hankook tires seem to love wet weather, when my car was delivered to my house from Natick by my SA, which is an hour of mostly highway driving, it was in rain that didn’t let up until just before he arrived, and he got 3.39 mi/kwh using Dream Drive most of the way. He said it was very heavy traffic, took almost 90 minutes for what’s normally 50 minutes so maybe drafting behind other cars helped but still I was impressed.

 

[Bdr100]

I think the outcome isn't shocking. Car & Driver seems to be rating the Air at about 80% of EPA range on their 75 mph highway test. 80% of the Gravity's 450 EPA range is 360. In the NotchEV video, he's going 71, not 75. But it was on the colder side, and the m/kWh declined as the night wore on and temperature fell yet farther.

Perhaps more puzzling is the 115.4 kWh consumed, versus the 118 that this forum seems to have assumed is the usable capacity of the 123 kWh pack. If NotchEV's peak m/kWh was maintained across 118 kWh, that'd be 373 miles of range.

Regardless, 359 miles of range seems to be class leading for an EV SUV. I do want to see a 75 mph range test, and am looking forward to other tests being done. I've felt all along that 350 miles of range would be plenty to satisfy me, and I've never expected to get close to 450 miles at highway speeds.

Not even close to class leading EV range. Cadillac Escalade IQ has 460 miles EPA and 482 miles per State of Charge test.

 

[niceInBoston]

But it was on the colder side, and the m/kWh declined as the night wore on and temperature fell yet farther.

This is the key. I assumed before I watched that he bundled up and kept the climate control off.

Game's over once you turn on the heat... not surprisingly to get 10% worse range, especially with a 20 degree or so difference. If range is important, using only the seat heater and the steering wheel heater is usually enough for me to be happy (if it's 50 degrees out), and you don't get the range penalty of using the heat pump.

I bet he would have been closer to 400 miles in the test if it was 80 degrees and he used the A/C slightly to get the cabin to 72.

Also, as @Bunnylebowski mentioned above, daytime driving leads to unintentional (or intentional) drafting, which helps... at night there's little traffic to draft.

 

[Bunnylebowski]

Not even close to class leading EV range. Cadillac Escalade IQ has 460 miles EPA and 482 miles per State of Charge test.

You understand the difference between efficiency and range, right? Anyone can make an EV with 700 miles of range by putting lots and lots of batteries in it. Gravity is more efficient than Escalade IQ with less battery, and weighs several thousand pounds less. I fail to see a problem.

 

[dbsb3233]

This is the key. I assumed before I watched that he bundled up and kept the climate control off.

I'd rather they range test with climate on, since that's the way most people are really gonna drive (especially in a $100k luxury car).

55F is not very cold, but... the difference is he's driving at night. 55F during the day with sun warming the car typically needs little-to-no heat. But without the sun, 55 is more like 45 daytime. So that probably did cost some.

 

[Pragmatic]

55F with a well designed heat pump should not take alot of energy to heat the car and maintain it at 72F over a several hour drive. Resistance heat would use approximately 3 times as much energy as a basic heat pump.

 

[hmp10]

We've been driving EVs since 2015, and highway range -- even with our Lucid Air -- has always been on our minds on a road trip. In our Teslas, it was actual range at the forefront of worry, and in our Air it was the crappy CCS charging infrastructure, especially in the southeast which seems to lag well behind the west coast in this regard.

The Gravity -- with its NACS plug and charging speed -- is the first EV we've owned that puts highway range concerns completely to bed for us. We drive it as we like on a road trip -- 80-85 mph with occasional bursts to break out of traffic clumps -- and we can always find a charger (preferably a Supercharger because of their greater reliability) by the time our bladders start insisting on a stop. And we almost always finish the charging before we're wrapped up using the bathroom, picking out snacks, and downing them.

My advice to anyone who does most of their driving locally: choose Gravity wheels for the weather conditions, the driving dynamics, and the look you want. Range is largely irrelevant other than for bragging rights at a bar.

 

[socktucker]

Was he using regen? My Air gets better mileage without regen.

 

[Smorgasbord]

450 to 358 is a loss of 92 miles of range. That's a 20% loss of range, which I find devastating.
My Tesla Model X's have gotten real world ranges better than 90% of rated range consistently. So with a Tesla rated at 352 miles, I suspect in the real world the 5-seater Gravity and small wheels isn't that much better, and with both vehicles at 3-rows, I wonder just how small that difference will be (Model X range doesn't change on 3rd row, hmm).

Fast charging is only somewhat helpful, and does not replace actual range. It's not the stopping, it's the finding chargers when and where you want to stop. Already, I see Tesla has reserved 3 of the chargers we've used the most for Tesla vehicles only, so that sucks, too.

My Air gets better mileage without regen.

That depends on how you drive. Newbie EV drivers tend to go on and off the accelerator at first, and that engages regen unnecessarily. Regen is better than physically braking, but coasting is better than regen. With regen engage, experienced drivers will keep the accelerator depressed enough to coast when that's desired.