Edmunds: Cybertruck range test achieves 334 miles! Exceeding estimated range 👍

[cvalue13]

40mph average speed, nope. That's not real world, sorry.

it’s exactly real world

which is why the EPA uses it

that didn’t take long …

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[cvalue13]

No, leaving it at 100% for a few days does not harm the battery.

depends on the temp of the battery

 

[Woodrick]

the truck tested is foundation series. the truck you referenced is not. this is the correct website snip

And where can they find that page? Tesla doesn't post it, AFAIK, it's invite ONLY!

AND DUH, THEY MADE A MISTAKE. THEY FESSED UP TO IT.
Give them some credit!

 

[Woodrick]

depends on the temp of the battery

And so at what temps is it a problem?

 

[Gurule92]

And where can they find that page? Tesla doesn't post it, AFAIK, it's invite ONLY!

AND DUH, THEY MADE A MISTAKE. THEY FESSED UP TO IT.
Give them some credit!

Did they? That's good. I don't follow it at all and don't really care lol. Just helping to edumacate the forum members

 

[SolarWizard]

im not watching the video
What was the average speed?

 

[cvalue13]

And so at what temps is it a problem?

 

[Speedr]

That's total bull.

There are studies that suggest that keeping the batteries at 100% can introduce a little reduction in capacity to the battery.

But look at the details, basically if you leave it at 100% for A YEAR, it will drop about 5%, compared to leaving it at 50%, for which it dropped 2.5 %.

No, leaving it at 100% for a few days does not harm the battery. It's actually good for the BMS to allow it to balance the batteries.

If you have owned or been around EVs for any length of time, then you would know this is true. Why do you think Tesla tells you to set your battery to 80% (down from 90%, which was the norm for them for years) when not needing all of the range?

There's a Canadian Battery Researcher (Dr. Jeff Dahn) at one of the universities up there that is the preeminent battery researcher, and has done a ton of research and has been sponsored by Tesla for years. He has given lectures over the years, and said this about not hitting 100% or 0%, for any length of time. It involves cracking of the surface structures of the cathode if I remember correctly. But feel free to charge to 100% on your Cybertruck and leave it there and report back to us on your battery degradation.

 

[Speedr]

That's explains it so much better than I could, but the main takeaway is the same: DON'T STORE AT 100% CHARGE!

 

[BannedByTMC]

Higher voltage and temperature speeds degradation of the electrolyte and physical changes to the electrode.

At higher voltages, the valency of the transition metal in the
positive electrode material increases [22], a direct consequence of which is that the decomposition
of conventional electrolyte on the positive electrode surface is significantly accelerated due to the
formation of a chemically reactive, catalyzing surface [23]. It should also be noted that the anodic
stability of an electrolyte is dependent on the positive material it couples with [24]. For instance,
the conventional LiPF6-carbonate electrolytes were reported to be stable on spinel positive
materials such as LNMO up to 5.2 V [24,25]; however, they are not stable on high Ni content
layered cathodes such as LiNi0.8Mn0.1Co0.1O2 even under 4.4 V [26,27].
In conventional electrolytes, EC and PF6- are the two most susceptible species towards anodic
decomposition (Figure 1A) [4,28]. When the electrolyte decomposes, the decomposition products
constitute a passivation layer on the positive electrode material, which is commonly known as a
cathode electrolyte interphase (CEI).

This paper gets deep into the weeds but the EE video above explains it well.
Electrolytes for high-voltage lithium batteries

 

[cybguy]

Update, Edmunds has updated their article to mention that the 334 miles range on A/T tires actually exceeded range estimates. ?





Full review @ https://www.edmunds.com/car-news/tesla-cybertruck-ev-range-test.html

• We put a Tesla Cybertruck Foundation Series through our official Edmunds EV Range Test.
• We achieved 334 miles on our test, just 6 miles shy of Tesla's predicted range.
• The Cybertruck is one of the most range-accurate Teslas we've ever tested, though the truck falls behind the dual-motor Ford F-150 Lightning and Rivian R1T.

Tesla Cybertruck: The results are in
The dual-motor Tesla Cybertruck Foundation Series achieved an Edmunds-certified result of 334 miles, or 6 miles short of Tesla's published estimate. Before we unpack that a little more, let’s acknowledge that those missing wheel covers could make up the difference; we plan on running the test again with the covers installed, whenever Tesla has a fix for the issue.

Why is this a surprise? Edmunds spent about 11.5 hours driving time to cover 334 miles. That means they averaged about 29 MPH while actually driving the Cybertruck. Who cares about range driving in town and suburbia at overall low speeds unless you drive for uber or are delivering locally. The reason I wanted a 400-500 EPA range is so the Cybertruck could be used on road trips.
Someone posted driving from San Francisco to LA. Total travel time with charging was 8 hours! Great so the Cybertruck can do it twice as fast as I've done it on a bicycle.
I remember driving mostly in Yellowstone NP over several days. I probable average 40 mph. Surprise my vehicle exceeded it highway EPA range by 50% over those several hundred miles..

 

[DrPhyzx]

Why is this a surprise? Edmunds spent about 11.5 hours driving time to cover 334 miles. That means they averaged about 29 MPH while actually driving the Cybertruck. Who cares about range driving in town and suburbia at overall low speeds unless you drive for uber or are delivering locally. The reason I wanted a 400-500 EPA range is so the Cybertruck could be used on road trips.
Someone posted driving from San Francisco to LA. Total travel time with charging was 8 hours! Great so the Cybertruck can do it twice as fast as I've done it on a bicycle.
I remember driving mostly in Yellowstone NP over several days. I probable average 40 mph. Surprise my vehicle exceeded it highway EPA range by 50% over those several hundred miles..

Alright, Lance Armstrong. I agree about CT range, but the fastest route for SF to LA by bike is a solid 480 miles, which means 30 mph to cover it in 16 hours. Nobody on earth can ride (or has ever come close to riding) 30 mph for 480 miles, even on a flat course. (30 mph will put you on or near the podium for a time trial of 30-40 miles distance in the Tour de France.) Kinda calls into question anything else you have to say....

 

[QinPhoenix]

Cool

 

[HaulingAss]

And where can they find that page? Tesla doesn't post it, AFAIK, it's invite ONLY!

AND DUH, THEY MADE A MISTAKE. THEY FESSED UP TO IT.
Give them some credit!

Yeah, they fessed up. So what? It's bad automotive journalism. Just like mainstream news stories, everyone reads the original headline, not many read the retraction. They succeeded in strengthening the false narrative that Tesla exaggerates their range. Imagine if the original headline says "Cybertruck beats EPA range in our tests". Yeah, that would have been the truth.

 

[Woodrick]

Yeah, they fessed up. So what? It's bad automotive journalism. Just like mainstream news stories, everyone reads the original headline, not many read the retraction. They succeeded in strengthening the false narrative that Tesla exaggerates their range. Imagine if the original headline says "Cybertruck beats EPA range in our tests". Yeah, that would have been the truth.

Bad journalism is never fessing up to it.

All I said is give them a little credit. And in this case, indeed, they actually DID use Tesla published information. I'd lay some of the blame on Tesla for this one.

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