2025.46 Update Teased: Customizable Driver Display for Gen 1 and Gen 2

[Dark-Fx]

I saw a 15% degraded model 3 in only 2 years. It had less than 20K miles on it. He stored it in his garage and it got very hot.

You should know better than to bring an anecdote to an argument. Especially someone else's.

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[elektrode]

JFC

 

[mkhuffman]

Are you taking tires and wheel aero into account? It's a known thing that more weight, especially further from the hub, will decrease efficiency. Physics and all.

I am, but EE did not. Which is why he got on my list as a charlatan. And a goober.

 

[DuoRivian]

If lots of batteries died at 25k miles then manufacturers would be on the hook via the battery warranty. They obviously have an incentive to have reliable, long lasting batteries.

 

[CharonPDX]

Absolutely. I predict a lot of us will be using that one. This is certainly shaping up to be a very very nice update.

But where is CarPlay

Surprise twist - the full screen map is actually CarPlay Ultra!

 

[sunydrm]

If lots of batteries died at 25k miles then manufacturers would be on the hook via the battery warranty. They obviously have an incentive to have reliable, long lasting batteries.

This would be after 10 years, AKA no battery warranty

i'm assuing 12-15 year lifespan and you drive ~2K miles a year

 

[portdirect]

Surprise twist - the full screen map is actually CarPlay Ultra!

now we know why they are holding out! Go big or go home!

 

[DuoRivian]

This would be after 10 years, AKA no battery warranty

i'm assuing 12-15 year lifespan and you drive ~2K miles a year

Very few people drive just 2-2.5k miles a year.

 

[Sgt Beavis]

Wassym is a semi regular on Reddit, He comments every once in a blue moon but used to do a Q/A. They got away from that. His username is u/WassymRivian

Surprise twist - the full screen map is actually CarPlay Ultra!

Nice

 

[hammick]

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

I quit being a battery nazi with my power tool and lawnmower batteries. I need them at 100% when I need them and they aren't going to bankrupt me. Our EVs are a different story. We charge both of them to 55% daily in the summer, fall and spring and 60% daily in the winter. On road trips I don't stress about it. I charge to 100% the night before if I need the range and DCFC at will.

 

[Eric9610]

Who knew asking for departure charging in a software updated would go into a deep debate about battery health.

My intention is easy use that I set when I plan to leave and don't have to hope its charged.

 

[skyguyscott]

Surprise twist - the full screen map is actually CarPlay Ultra!

Given RJ's pride in the Rivian stack, and that VW is paying them what is essentially their current operating capital for their automotive software expertise, I would be shocked into singin' the celestial choir everlastin' if this update has some sort of CarPlay integration.

I would be shocked if Rivian ever integrates CarPlay, and can only imagine such a scenario if sales were tanking like at Tesla, and CarPlay integration was a last desperate attempt at salvation of the company.

 

[CharonPDX]

Given RJ's pride in the Rivian stack, and that VW is paying them what is essentially their current operating capital for their automotive software expertise, I would be shocked into singin' the celestial choir everlastin' if this update has some sort of CarPlay integration.

I would be shocked if Rivian ever integrates CarPlay, and can only imagine such a scenario if sales were tanking like at Tesla, and CarPlay integration was a last desperate attempt at salvation of the company.

 

[Donald Stanfield]

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

Who cares if you can get 30 years out of a battery? The rest of the car will be shit before then.

 

[2kwik4u]

Look, I'm admittedly a fanboi of EE. I even own one of his t-shirts.

Same. The fabric is soo soft, but the logo didn't last very long. I usually get a new one each in my stocking from Santa, so there's that

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