Rivian Max Pack EPA Data (document shows 141-142 kWh usable battery)

[Herb]

FWIW, I recently got 359 + 2 remaining miles on a real road trip, mostly highway, mostly well over the speed limit. At the speed limit I think I would have come close to 410 miles. I don't know how they do it but it's real. I don't really care how large or small the battery is as long as the advertised miles can actually be achieved, albeit in somewhat ideal conditions (no A/C needed, not much heat on that trip, but had 3 passengers and crate in the bed).
Yes, they dropped the quad motor/max combo, but also the price. I don't have a comparison to quad, but I think the dual performance is a very good setup. I never had any plans for serious off-roading so for me it's a non-issue. Keep in mind that this max pack didn't add weight or ate into storage. Anyways, I can't complain about range or price/performance ratio compared to when I reserved the truck. My advice: always get the largest battery pack if you can afford it, even it appears to be a rip-off, it pays dividends in the long run.

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[R1TS]

https://www.rivianforums.com/forum/...nd-max-pack-reviews-missing.20398/post-434561

2.66 mi/kwh with three passengers + medium size crate in bed

Still not a post of 2.89 mi/kWh.

Hopefully, that person will repost at some point after driving for a few thousand miles.

 

[DuoRivians]

Still not a post of 2.89 mi/kWh.

Hopefully, that person will repost at some point after driving for a few thousand miles.

2.66 mi/kwh is significantly better than the equivalent quad motors at 2.2-2.3 mi/kwh.

 

[R1TS]

2.66 mi/kwh is significantly better than the equivalent quad motors at 2.2-2.3 mi/kwh.

For sure. But, a quad Rivian with 21” wheels is more like 2.4 mi/kWh.

Also, we weren’t discussing whether the quad or dual is more efficient.

 

[DuoRivians]

For sure. But, a quad Rivian with 21” wheels is more like 2.4 mi/kWh.

Also, we weren’t discussing whether the quad or dual is more efficient.

I haven’t seen quad 21s get 2.4 mi/kwh, unless limited to exclusively conserve mode.

Unless you can find a car that’s a dual motor large pack, which I haven’t seen shared by anyone, you won’t know how/where the efficiency splits when looking at max pack only, since max pack can only be configured with dual.

 

[R1TS]

I haven’t seen quad 21s get 2.4 mi/kwh, unless limited to exclusively conserve mode.

Unless you can find a car that’s a dual motor large pack, which I haven’t seen shared by anyone, you won’t know how/where the efficiency splits when looking at max pack only, since max pack can only be configured with dual.

So, we both agree that no Rivian achieves rated EPA range, and that EPA number is about 10% overstated. I can stand by that.

 

[DuoRivians]

So, we both agree that no Rivian achieves rated EPA range, and that EPA number is about 10% overstated. I can stand by that.

No that’s not what I said at all. EPA uses a certain driving test. If anyone followed what they did exactly, they can likely achieve that.

But no driver, across any brand, will drive like that. This isn’t controversial or meant to be dramatic.

 

[R1TS]

No that’s not what I said at all. EPA uses a certain driving test. If anyone followed what they did exactly, they can likely achieve that.

But no driver, across any brand, will drive like that. This isn’t controversial or meant to be dramatic.

It’s not that simple with EPA range.

Tesla regularly underachieves EPA.
Porsche regularly overachieves EPA.

 

[SeaGeo]

You guys really need to slow down and read the EPA docs instead of guessing.

The standard adjustment factor for the 5 cycle test is 0.7. They used .715, for dual max they used .707. That's really nothing.

Highway cycle range increase is almost exactly what you'd expect with the 11kwh larger battery tested.

The city cycle achieved significant efficiency gains. This is where almost all of the unexpected increase is coming from.

EPA r1s dual max 21" highway range is 332 miles out of 130.7 kwh. The max pack gets up to 365 miles Out of 141.7 kwh.

 

[SeaGeo]

I haven’t seen quad 21s get 2.4 mi/kwh, unless limited to exclusively conserve mode.

Unless you can find a car that’s a dual motor large pack, which I haven’t seen shared by anyone, you won’t know how/where the efficiency splits when looking at max pack only, since max pack can only be configured with dual.

Quad conserve to dual im the highway cycle is about a 6% efficiency bump.

Dual large to dual max in the highway cycle doesn't have an efficiency bump, it's an additional 11kwh×highway efficiency of large. Which is fine, but people should not expect an efficiency increase on the highway.

 

[DuoRivians]

Quad conserve to dual im the highway cycle is about a 6% efficiency bump.

Dual large to dual max in the highway cycle doesn't have an efficiency bump, it's an additional 11kwh×highway efficiency of large. Which is fine, but people should not expect an efficiency increase on the highway.

Do you have a link to the dual large pack epa docs? Thanks in advance

 

[SeaGeo]

Second post in this thread. ?

 

[Supratachophobia]

FWIW, I recently got 359 + 2 remaining miles on a real road trip, mostly highway, mostly well over the speed limit. At the speed limit I think I would have come close to 410 miles. I don't know how they do it but it's real. I don't really care how large or small the battery is as long as the advertised miles can actually be achieved, albeit in somewhat ideal conditions (no A/C needed, not much heat on that trip, but had 3 passengers and crate in the bed).
Yes, they dropped the quad motor/max combo, but also the price. I don't have a comparison to quad, but I think the dual performance is a very good setup. I never had any plans for serious off-roading so for me it's a non-issue. Keep in mind that this max pack didn't add weight or ate into storage. Anyways, I can't complain about range or price/performance ratio compared to when I reserved the truck. My advice: always get the largest battery pack if you can afford it, even it appears to be a rip-off, it pays dividends in the long run.

This is excellent to know.

 

[Supratachophobia]

Do you have a link to the dual large pack epa docs? Thanks in advance

Here you go chief:

https://dis.epa.gov/otaqpub/publist1.jsp


Edit: you'll want document type "application"

 

[DuoRivians]

Second post in this thread. ?

So I copied and circled here the relevant info for *R1S 21 DUAL MOTOR*. Only difference is battery pack.

Large Pack

Max Pack

For hwy, we see about a 32 mile difference (364.87-332.52). Like you said, could be explained by the 11 kWh battery pack difference.

And you’re right, the city numbers are quite disparate. 429.60 - 368.05 = 61.5 miles.

Since the only difference between them is the battery pack (presumably), is there anything in these EPA docs that would suggest Rivian is fudging the city numbers? Or, is there a good possibility that these could be legit and we need to understand how?

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