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2kwik4u

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Was I the only one who wanted a large analog clock with random adventures of Gary on the driver’s screen? 😒

Similar to the Snoopy watch face on my Apple Watch, but with Gary.
I didn't want that before, but I kind of do now.

Glad to see something new coming to the drivers display. The vehicle view was just this side of pointless.

Would REALLY REALLY like some additional metrics on the drivers display. Battery and motor temp, elevation, maybe make those green bars for drivetrain input/output multiples to match the motors so we can see that visualized as well? You know, like an instrument panel should be :D

This is good, but they can use that space even better.
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skyguyscott

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Departure charging is an app feature where you select an estimated departure time, say the night before -- then the vehicle automatically selects the time to start charging such that it will be freshly charged at the departure time, based on the desired SOC, the best electric price rate plus the cabin will be at the right temperature. In theory, this would also precondition (heat) the battery (especially in winter) so that it can charge most efficiently and without risk of permanent degradation of the battery, thus prolonging it's health and life. IOW, you tell the vehicle when you want to leave with what level of charge, and the vehicle will be ready to go at that time, having charged itself in the most optimal way to preserve and protect battery longevity and maximize range efficiency with perfect cabin temperature .

Note that in some cases, say where you want to go on a long road trip, have the max battery pack, and want to leave early in the morning with 100% charge, but don't program it until late the evening before and your battery is only at 15% on a cold night -- well, you might not have enough time to get fully charged regardless.
 
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portdirect

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Volume reduction when opening the door is a good idea. Hopefully not reversed
Excuse you Sir. How else am I expected to have everyone endure appreciate Aqua's classic `Barbie Girl` when I get to the trail head?!

 

SadHill

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Is nobody else concerned that whoever is driving the vehicle in the example screens is about to smash into the back of the vehicle in front of them? Why are they accelerating so aggressively? This is a disaster waiting to happen!
Maybe he is being chased by that motorcycle and he has to get away in a jiffy!
 

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iansriv

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Exactly this! The inaccurate display of “traffic and peds” was the biggest waste of screen real estate. I’m not blind. I can see all that stuff.
Agree. Will the speedo be moved over to the middle?
 

sunydrm

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There are a lot of false claims in this.
Haven't you watched the video about the cannonball run recently? Where they grabbed batteries from crash-tested Rivians that were sitting in a vehicle graveyard for months before being salvaged? They hooked them up and saw they were basically pristine (paraphrasing, but you get the point).
Because at low SOC you get low calendar aging. Are crash tested rivians stored at high SOC? No.

CALENDAR AGING occurs over many years.


All the most recent data emerging is showing that
1- EV batteries are MUCH more durable than you think and suffer much less degradation over time even in extreme circumstances.
Dr. Jeff Dahn says to charge to 75% which has no basis on reality. He knows this. He is funded by automakers to say this.

he is hiding the fact that car batteries die from calendar aging



2- Fundamentally, even DCFC small-ish, non-optimized batteries in the desert (Arizona temps) have shown to have extraordinarily little impact on battery reliability and longevity
We are not talking about DC fast charging. We are talking about calendar aging

Calendar aging represents 90% of a battery's aging (unless you do uber and do large cycles (high depth of discharge) every single day)

The issue is storing the battery at high SOC and in high temps. You can see this already. Early Arizona/California tesla batteries are now starting to die after around 12 years. This is exactly as predicted. This is to the 80% degradation point where EV battery cells can rapidly degrade at any time.

By comparison the average user will get closer to 15 years on a battery pack and with good charging limit (50%) and cold temps you can get 30 years



3- these batteries have different chemistry than most people think of (like your phone), and really is incomparable to anything that's non BEV.
This is false. Why do powertool batteries fail so quickly when a car battery lasts 15 years? 2 reasons.

Depth of discharge affects the amount of equivalent energy cycles you get. If you charge a powertool to 100%, discharge it until it is dead and then repeat again, you will kill the battery in record time. If you use a battery for only 10 or 15% before recharging like you do with a 300+ mile range EV for daily use, you get 1000s of equivalent energy cycles.

The second thing is that storing the powertool battery at 100% (while plugged into the charger) increases calendar aging. Your garage can reach high temps as well.

If you had an electric lawnmower with a battery pack that was 4x the size you needed to mow your lawn, charge limited it to 50% and limited depth of discharge you'd see car-like longevity

The only *real* risk of the batteries not being used, as you're proposing, is if you allow them to completely discharge. THAT would be bad. But not using them much over the course of a year is absolutely not detrimental.
Again, batteries die from CALENDAR aging. This means that nonuse is not detrimental to the battery. It just means that your battery is dying regardless of whether you use it.

You can drive 600K miles on an EV battery or you can drive 30K. It depends on how you use the battery
 
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portdirect

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One thing I suspect I may be alone on is wanting to be able to have the 360 Birds Eye view behind the wheel - I find myself using it a lot on narrow roads/trails and so quite often have it up on the central screen semi-permanently.
 

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rodhx

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Personally I’d like a minimalist feature. Just a dim speedo and maybe a battery level. Everything else off. Been on enough roadtrips that all the dash lighting becomes just overbearing.
I had not thought of that, but yeah there are times when a digital equivalent of the decades-old SAAB “black panel” setting would be great.
 

portdirect

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I had not thought of that, but yeah there are times when a digital equivalent of the decades-old SAAB “black panel” setting would be great.
Red on black as well! Though I recall someone else on here had mentioned that the reason we don’t have a red interior lighting theme is that Rivian were holding it back as they felt they may be able to monetize it later as a value add.
 

mkhuffman

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Because at low SOC you get low calendar aging. Are crash tested rivians stored at high SOC? No.

CALENDAR AGING occurs over many years.




Dr. Jeff Dahn says to charge to 75% which has no basis on reality. He knows this. He is funded by automakers to say this.

he is hiding the fact that car batteries die from calendar aging





We are not talking about DC fast charging. We are talking about calendar aging

Calendar aging represents 90% of a battery's aging (unless you do uber and do large cycles (high depth of discharge) every single day)

The issue is storing the battery at high SOC and in high temps. You can see this already. Early Arizona/California tesla batteries are now starting to die after around 12 years. This is exactly as predicted. This is to the 80% degradation point where EV battery cells can rapidly degrade at any time.

By comparison the average user will get closer to 15 years on a battery pack and with good charging limit (50%) and cold temps you can get 30 years





This is false. Why do powertool batteries fail so quickly when a car battery lasts 15 years? 2 reasons.

Depth of discharge affects the amount of equivalent energy cycles you get. If you charge a powertool to 100%, discharge it until it is dead and then repeat again, you will kill the battery in record time. If you use a battery for only 10 or 15% before recharging like you do with a 300+ mile range EV for daily use, you get 1000s of equivalent energy cycles.

The second thing is that storing the powertool battery at 100% (while plugged into the charger) increases calendar aging. Your garage can reach high temps as well.

If you had an electric lawnmower with a battery pack that was 4x the size you needed to mow your lawn, charge limited it to 50% and limited depth of discharge you'd see car-like longevity



Again, batteries die from CALENDAR aging. This means that nonuse is not detrimental to the battery. It just means that your battery is dying regardless of whether you use it.

You can drive 600K miles on an EV battery or you can drive 30K. It depends on how you use the battery
Dude, you are exhausting. It is as if you know something, yet I think you really don't. Not sure why. Maybe it is due to all the half-truths passed off as 100% fact.
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