Max Pack Battery Capacity Confirmed - 149kWh

[RayzorBEV]

I'm really happy with my 2023 R1S QUAD Motor with Large Pack, on factory 21 in wheel/tire package.
After 4043.4 mile. My overall efficiency now stands at 2.58 mi/kWh. Not bad considered that I don't baby the throttle. Just for kicks, my Tesla Model 3 Dual Motor mustered out 4.289mi/kWh after 5000 miles.

Sponsored

 

[Adventusaurus]

I doubt you would get 2.7 mi/kWh at 80 mph. So you must be at or below the speed limit. I guess that is what you mean about about driving like a saint!

Yes. Speed limit here is 65mph, and for 2.7 you need to stick to it . It’s saved me from being late home and related “corrections” via a charging stop a few times, so worth it even though it’s boring and you feel like a rolling chicane. Nobody does the speed limit here…

 

[scottf200]

Looks like they updated ElectraFi my Max Pack account works now. The Wh/Miles figure doesn't seem accurate at this point.

Update:
The Wh/Miles calculation appears to based on 180 kWh. This is from a 0-95% charge:

The kWh reported by our EVSE correlates with the kWh reported by the Rivian, so I don't think that's it. It was a 0-95% charge so more likely 172.6/.95=181.6

Re: confirmed 149 kWh -- thread title

It may be a bit more than 149 kWh

 

[vandy1981]

Re: confirmed 149 kWh -- thread title

It may be a bit more than 149 kWh

It's 149 kWh gross capacity. Usable is likely around 140 kWh-143 kWh.

 

[scottf200]

It's 149 kWh gross capacity. Usable is likely around 140 kWh-143 kWh.

RE: 172.6 = "kWh reported by our EVSE"
So your the AC-->DC conversion is using 37.7 kWh then ?
37.7 = 172.6-134.9 .... [142*95%]
21.8% efficiency loss? 1-(134.9/172.6)

 

[vandy1981]

RE: 172.6 = "kWh reported by our EVSE"
So your the AC-->DC conversion is using 37.7 kWh then ?
37.7 = 172.6-134.9 .... [142*95%]
21.8% efficiency loss? 1-(134.9/172.6)

Where are you getting 172.6 kwh?

 

[scottf200]

Where are you getting 172.6 kwh?

Huh? From you. You said Electrafi matched your EVSE. Are my calculations above incorrect?

 

[mkhuffman]

We are discussing Max Pack battery capacity in multiple threads. This is the right thread to discuss it, so I am looping in @Jiji who said he is able to use the Rivian API to read the battery capacity, and he is waiting for someone with a Max Pack to allow him access so he can check it. He says the Large Pack is 127 kWh usable.
https://www.rivianforums.com/forum/...over-black-mountain-88k-obo.19707/post-421762

Come on, Max Pack owners. All you have to do is create a second temporary Rivian account that is linked to your VIN, give the ID & PW to @Jiji so he can read the data. Once that is done, you can change the PW or delete the account. I would do it if I had one. Take one for the team!

 

[vandy1981]

Huh? From you. You said Electrafi matched your EVSE. Are my calculations above incorrect?

The numbers on the Rivian display matched my EVSE. The Electrafi numbers were 40 kWh higher.

 

[Jiji]

We are discussing Max Pack battery capacity in multiple threads. This is the right thread to discuss it, so I am looping in @Jiji who said he is able to use the Rivian API to read the battery capacity, and he is waiting for someone with a Max Pack to allow him access so he can check it. He says the Large Pack is 127 kWh usable.

I am just adding 2FA support and multiple vehicles to my app so I threw it in there as well when you drill down into the vehicle details. Most will only have one vehicle to look at but a few lucky ones out there might have two:

Once I push this to TestFlight anyone can see their battery capacity. And maybe I should start logging it since every other field in the record changes (location, speed, SoC, odometer, drive mode, etc). Maybe this will change as the battery ages and the miles accumulate.

 

[Ronaldinho]

Not sure if it was in this thread or another, but ABRP confirmed that they're no longer using the old 180 kWh value for their max pack route calculations. They wouldn't however confirm the value they currently use...

 

[GhostAndSkater]

Just some hard numbers going from the cells for the Large Pack

On Munro teardown you can clearly see the Large Pack uses Samsung INR21700-50G cells, each is 17.787 Wh, with 7776 cells, the large pack is 138.31 kWh gross

If they use LG INR21700-M58T the Max Pack, each is 20.4 Wh, resulting in 158.63 kWh, a 10 kWh buffer seems way too big for a 149 kWh pack,

The thing is there isn't any other possible candidate from the big cell manufacturers that has considerable more energy than the Samsung INR21700-50G but less than the LG INR21700-M58T, so my bet is of the LG one with a huge buffer, and I see a few reasons why:

1 - High energy cells usually have lower performance and higher degradation when pushed, so the huge buffer helps with that and also helps hide the degradation down the line
2- They also charge significantly slower, so by having a huger buffer on top, it might seem that it chargers faster for each given %

 

[scottf200]

The numbers on the Rivian display matched my EVSE. The Electrafi numbers were 40 kWh higher.

Thank you. I apologize for the misunderstanding and confusion it added.

 

[Supratachophobia]

Just some hard numbers going from the cells for the Large Pack

On Munro teardown you can clearly see the Large Pack uses Samsung INR21700-50G cells, each is 17.787 Wh, with 7776 cells, the large pack is 138.31 kWh gross

If they use LG INR21700-M58T the Max Pack, each is 20.4 Wh, resulting in 158.63 kWh, a 10 kWh buffer seems way too big for a 149 kWh pack,

The thing is there isn't any other possible candidate from the big cell manufacturers that has considerable more energy than the Samsung INR21700-50G but less than the LG INR21700-M58T, so my bet is of the LG one with a huge buffer, and I see a few reasons why:

1 - High energy cells usually have lower performance and higher degradation when pushed, so the huge buffer helps with that and also helps hide the degradation down the line
2- They also charge significantly slower, so by having a huger buffer on top, it might that it chargers fast to "100 %", or even at lower SoC

If I recall, the 58 series battery is 5600mah and the 50 series is 4800mah. But I could have sworn there was something in between. And 100% yes to more severe degradation with higher capacity cells. This could certainly be a short term gain / long term loss for Rivian. And if that is the case, I'm pretty disappointed.

 

[vandy1981]

Not sure if it was in this thread or another, but ABRP confirmed that they're no longer using the old 180 kWh value for their max pack route calculations. They wouldn't however confirm the value they currently use...

This is pretty much confirming ABRP knows the Max Pack capacity and are using that for their calculations. If this is true, the Max Pack usable capacity is around 141 kWh. Which correlates with my experience with a deep charge of my Max Pack.

I entered a route from Nashville to Memphis (189 miles) in ABRP, set the max speed to 65 mph, and removed traffic and weather factors from the settings.

ABRP specifies 2.68 mi/kWh as the 65 mph efficiency of the R1T Max Pack.

The 189 mile trip from Nashville to Memphis depletes the battery by 50%.

189miles/.5=378 miles
378 miles/2.68 miles/kWh=141 kWh

Sponsored