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TexasBob

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The charging isn't unrealistic at all. That's like saying 800v charging is unrealistic bc you have to use 800v chargers. Walmart, IONNA, and Rivian are all 600 amp capable. Additionally, the quoted 29 minutes doesn't require 600 amps. 600 amps is required if you want better than the 29 minute quoted time.

The way I see it the charging they underpromised and overdelivered on. The range they overpromised and underdelivered on.
The car will take 630A but the most any charger in the US can deliver is 600.

It is also unrealistic to get 21 minute charging on the BMW iX5 which wants 470 kw and there is no charger I know of in the US that can do that. But it is a distraction. It is the combination of range, charging speed, and pack size that kneecaps the long distance travel.
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Jeremy3292

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The car will take 630A but the most any charger in the US can deliver is 600.

It is also unrealistic to get 21 minute charging on the BMW iX5 which wants 470 kw and there is no charger I know of in the US that can do that. But it is a distraction. It is the combination of range, charging speed, and pack size that kneecaps the long distance travel.
"It was also clear that the 29 minute charging time was going to be under some pretty optimistic (and unrealistic) scenarios (it requires 600A+ chargers!)."

This is untrue; that's all I was pointing out. You will get 26 minutes or so if you use 600 amp chargers. You will get 29 minutes if you use 500 amp chargers, like Tesla. No optimistic or unrealistic scenarios required. Straight forward.
 

shandering

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100 kWh would've been totally fine too, which is only 10 kWh or about $1,000 more in their cost. That would be 30 more miles on the OOO test and totally good.
There are battery density limits. Tesla cannot put any more batteries in a model Y without building a non skateboard battery pack or using 2 layers of batteries

R2 is probably already pushing the limit with 10kWh more than tesla
 

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shandering

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Don't care about Model Y at all. Talking about R2. This is a Rivian forum.
The point is you can't put 100kWh in a vehicle of this size without using a non skateboard battery. Rivian won't do that. They also won't build 2 layer battery packs like they did for R1
 

Jeremy3292

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The point is you can't put 100kWh in a vehicle of this size without using a non skateboard battery. Rivian won't do that. They also won't build 2 layer battery packs like they did for R1
True, they are dimensionally limited with this design I suppose. Need higher Wh/kg then.
 

CharonPDX

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Anyone that actually believed R2 would be as efficient as Model Y wasn't paying attention to physics. I am not at all surprised by this result. It would have been nice to have a bigger battery to actually hit 300 miles, but it is what it is.
 

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r2fb

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For those comparing to the new IX3, it fell short on range tests as well by about 86 miles at 110km/hr (68mph). So goes back to certification tests not reflecting real world conditions. Only 1 person so far has done a real world test thus far.
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Of note, the iX3 was initially touted as 400 miles of range, but was since recertified as 434 miles of range by BMW. Real world range was 348 miles.
Tests not done on a full 100% charge and rely on the car's percentage indicator are not good tests.
 

r2fb

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My driving use case can be even served with a Chevy Bolt so I don't really care about any of this, but it's about what I expected. I am still considering the ix3 instead purely because of the premium established brand factor and supposed driving dynamics. I just don't want something that drives like an offroader but looking like one is fine (and cool!)
 

Jeremy3292

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The question I really have is, WHY does the CAR think it can go so much farther? The EPA games and inaccuracies aside, I’d like the IN CAR experience to at least be close to accurate.. but if we look at the data reported, distance travelled, for the first 75% nearly of SOC the R2 THOUGHT it could go ~ 300 mile at least.. heck at 75% SOC the car had already travelled 65.5 MILES and the in dash display STILL listed 253 miles of range?

Is the RANGE estimate an estimate of the TOTAL range in TOTAL? I would think that the in dash RANGE estimate is still the REMAINING range available?

At 50%, they had travelled 128 miles, and the in car display still showed 150 miles of “range”.. just simple maths would make me think that CAR at least would have/can travel 300 miles? And yet, the car was only able to manage 80% of that remaining 150 miles indicated at most. Till DEAD?

For you Rivian owners, is this the expectation of the capability of the in car real range reporting? Does one always have to 2nd guess things?

As a Tesla M3LR owner, getting whatever range one is going to get is a moving target, but, BUT the IN CAR reporting remaining available distance is usually in the end within about 1-2%, and yes it takes a little time at speed on highways for the car to adjust with where it’s going and how you are driving, but the adjusted IN CAR indicators are at least accurate.
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Bc it's all EPA rated miles, same as Tesla does. It is so STUPID they do this that's why I always have % battery as the only thing showing in the car. If you need miles use the navigation which relies on the current driving speed and conditions for calculating.
 

Dennisis

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I’ll say after 8 years now the miles is very very close at least in my car. It’s a moving target of course, but when I’m traveling on a highway doing 80-83, and the car says I have 128 miles range available and I’m heading south on the I5, but before the grapevine and heading the Kettleman City or Maybe Harris Ranch, and it says I’ll get there with ~ 7% remaining, and it’s still 110 miles away - it’s pretty spot on.
As an 8 year and 3 Tesla’s vet myself I’ll say you’re one of the few to feel that way and the first I’ve heard of. Have been on TMC forever and that’s one of the first things that get recommended as too many people get focused on the miles of range displayed. “Why did I run 5 miles to the store but it took 15 miles of my range, I got a lemon!” And such. Good luck with that, it’s nothing to trust as gospel.​
 

shandering

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True, they are dimensionally limited with this design I suppose. Need higher Wh/kg then.
The whole reason rivian made 2 layer R1 batteries is because they were wrong about battery density. They lied about ranges they thought were possible.

Tesla also though cybertruck would have similar ranges and they never delivered. Rivian delivered by building vehicles with improperly cooled batteries

That was around the same time tesla announced the roadster with 600 miles of range or whatever. It was done in the prototype by having additional batteries in the trunk
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