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Scoiatael

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We have a Dual Motor Model Y and we never get max charging on road trips. Going from LA to Las Vegas and using the nav to pre condition, we NEVER get over 140kwh after the first minute or so of charging. Even if the station in Baker is empty. We are usually there for 30 minutes to get enough juice to get us home. Not much different than the R1T results. On a new Supercharger station in Mesquite NV, we did see much higher charge rates for 5 minutes or so, then back to the 150's only to trickle off as we got past 80%.

The curve for the Rivian R1T didn't seem much different.

PK
I've gone on 2 road trips in my model y and have gotten 249 kWh at every v3 supercharger stop. Sure it only lasts maybe 2 minutes, but I've never needed to stop for more than 20 minutes. 40 minute stop I do for lunch gets me to 100% charge.
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branden

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Why? I ask again, what's the benefit? We know what the detriment is.
Having far more usable range. If you're only using 60% of your battery (20-80%), you're charging way more often than you need to and you're not benefiting from the long range
 

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branden

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Oh? Will Rivian then be the only CCS equipped vehicle that can't use them? How does that work. S/W lockout?
No CCS (or any non-Tesla) vehicle can use Superchargers outside 10 stations in The Netherlands.
 

ajdelange

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Having far more usable range. If you're only using 60% of your battery (20-80%), you're charging way more often than you need to and you're not benefiting from the long range
Perhaps when you get some experience actually driving BEV you will come to understand. It's not quite like what you are used to with ICE. There is no point in charging beyond 80% if I only need 80% to get me to my destination with what I consider to be healthy margin. Among other things adding the extra 10% can take a long time with taper. As I said you will come to appreciate this as you gain some experience.
 

branden

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Perhaps when you get some experience actually driving BEV you will come to understand. It's not quite like what you are used to with ICE. There is no point in charging beyond 80% if I only need 80% to get me to my destination with what I consider to be healthy margin. Among other things adding the extra 10% can take a long time with taper. As I said you will come to appreciate this as you gain some experience.
I'm extremely familiar with road tripping EVs. Drove 60k miles in my Tesla in 2020 alone, have road tripped my VW ID.4 and Mini Cooper SE. On road trips, I almost always pull into a DCFC with around 5% charge remaining and depart with just enough to make it to the next station unless I'm otherwise occupied with eating, etc. I start every day with 100% when leaving from home or hotel when on the road. Check out my YouTube channel below if you're curious about my EV road trip experiences.
 

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ajdelange

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Something is not quite right here. From what I can tell in the data, it took 20 minutes to go from 20% to 50% SOC (a 30% increment) at a reasonably constant charge rate close to 150 kW/hr.
Sharp eyes! But there is really nothing wrong here. A look at the SoC vs time chart reveals this:
Rivian R1T R1S Rivian R1T charging curve test 20-80% [by TFL] R1TChg

As you can see the slope of the red curve (SoC) is the applied power (blue). It increases slightly during the times that the power is trickling up and decreases after the power starts to go down. The coarse quantization in both time and SoC tends to obscure this. But it does illustrate an important fact and that is that the taper does not really make that much difference in the overall average charging rate. The overall charge curve is, despite the taper, pretty close to linear.

Edit: The time scale is in minutes.
 
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ajdelange

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...I start every day with 100% when leaving from home or hotel when on the road.
That's OK as I have said in several of these posts but to suggest that people are weird if they don't do that on a regular basis explicitly contravenes Rivian's and Tesla's recommendations with respect to battery management.
 
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ajdelange

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No CCS (or any non-Tesla) vehicle can use Superchargers outside 10 stations in The Netherlands.
That was true only after they discovered they stuffed up and changed the S/W to lock out non Telsas. For a while there any (or many) CCS equipped cars were able to charge at SC. The point, of course, being that non-Tesla vehicles CAN charge at Tesla SC. This, of course, only makes sense as it would be very surprising of Tesla were not following CHARIN standards. They are a member.
 

branden

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That's OK as I have said in several of these posts but to suggest thaty people are weird if they don't do that on a regular basis explicitly contravenes Rivian's and Tesla's recommendations with respect to battery management.
Tesla and Rivian don't recommend charging to 100% daily, but if you charge to 100% on trips and don't let it sit there, it's completely fine.

That was true only after they discovered they stuffed up and changed the S/W to lock out non Telsas. For a while there any (or many) CCS equipped cars were able to charge at SC. The point, of course, being that non-Tesla vehicles CAN charge at Tesla SC. This, of course, only makes sense as it would be very surprising of Tesla were not following CHARIN standards. They are a member.
Tesla Superchargers in North America use a proprietary plug and there is no way to activate the station to deliver power for a non-Tesla. So no, you cannot charge a non-Tesla at a Supercharger in North America. That could change in the future, but we're talking about the current reality here, not some possibility.
 

Attesan997

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I'm extremely familiar with road tripping EVs. Drove 60k miles in my Tesla in 2020 alone, have road tripped my VW ID.4 and Mini Cooper SE. On road trips, I almost always pull into a DCFC with around 5% charge remaining and depart with just enough to make it to the next station unless I'm otherwise occupied with eating, etc. I start every day with 100% when leaving from home or hotel when on the road. Check out my YouTube channel below if you're curious about my EV road trip experiences.
I think there a few circumstances that are all being lumped into one. Daily around town use with parking overnight wouldn't require one to charge to 100%, Rivian recommends 70% while Tesla and others are in the 80-90% range. Road trips or other circumstances when the battery will not sit topped off for hours can be 100%. DC charger to DC charger runs work "fastest" in the sweet spot of the charge curve where you're getting faster speeds. I'm not sure there's enough data out there to say the specific range but its clearly somewhere below 80% on the top end. The last one, charging station to station is all up to the driver, some want to optimize time and reduce every moment stopped. Others want to minimize stops together. I'm not sure there's one "correct" way to do it.
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