VERY DISAPPOINTED!!! No 400+ battery until Jan. 2022?!?!?!

[riviancanucknb]

Not having the large pack as part of launch edition of the R1T is stupid.

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[dzmconstr]

Maybe they are delaying and planning on a battery density increase. This way they can have a long range R1S with 7 seats. Maybe it will be more than 400 miles by then as well.

So R1S comes with 7 seats and the large battery pack, and range is listed as 300 +...so 400 mile range is out and any larger pack is out as well...as the configurator is configured.

 

[Cactus]

The reason for not offering a 400mile version has got be lack of batteries. Does anyone know how to figure out how many more batteries are in the 300 mile pack vs 400 mile pack?

 

[skyote]

The reason for not offering a 400mile version has got be lack of batteries. Does anyone know how to figure out how many more batteries are in the 300 mile pack vs 400 mile pack?

180kW pack (400+) has 33.3% more batteries than the 135kW (300+)

 

[dzmconstr]

180kW pack (400+) has 33.3% more batteries than the 135kW (300+)

Only for R1T. What will the 400+ mile pack for the R1S look like if 180kWh only gets the R1S 300+ miles - 240kWh? That would be one huge battery and support infrastructure (cooling, suspension, and charging equipment etc).

 

[electruck]

Only for R1T. What will the 400+ mile pack for the R1S look like if 180kWh only gets the R1S 300+ miles - 240kWh? That would be one huge battery and support infrastructure (cooling, suspension, and charging equipment etc).

No, the 135kWh pack gets 300+ in both R1S/T.

 

[skyote]

Only for R1T. What will the 400+ mile pack for the R1S look like if 180kWh only gets the R1S 300+ miles - 240kWh? That would be one huge battery and support infrastructure (cooling, suspension, and charging equipment etc).

R1S 300 mile is the 135, they are calling it Large. They are calling the 180 Max.

 

[dzmconstr]

Really - so for R1T, large is 180kWh and for R1S Large is 135kWh...wtf.

R1S 300 mile is the 135, they are calling it Large. They are calling the 180 Max.

OK now I see it...135kWh on both is large but only R1T hints at Max pack later for 400+.

 

[DucRider]

The reason for not offering a 400mile version has got be lack of batteries. Does anyone know how to figure out how many more batteries are in the 300 mile pack vs 400 mile pack?

My best guess:
2,952 (864 x 3)
If configured for "400V", each 15 kWh module will be 8p 108s.
If/when configured for "800V" (charging profile at a minimum), they will effectively be 4p 216s
Each LG 21700 has a nominal voltage of 3.63V, and a minimum capacity of 17.6 Wh.
108 x 3.63V = 392V
864 x 17.6 Wh = 15.2 kWh

 

[skyote]

My best guess:
2,952 (864 x 3)
If configured for "400V", each 15 kWh module will be 8p 108s.
If/when configured for "800V" (charging profile at a minimum), they will effectively be 4p 216s
Each LG 21700 has a nominal voltage of 3.63V, and a minimum capacity of 17.6 Wh.
108 x 3.63V = 392V
864 x 17.6 Wh = 15.2 kWh

Yep, I remember them saying there are 7776 in each 135 pack (plus 1 in flashlight).

7776/9 modules (15kWh each) = 864 per module

 

[azbill]

Yep, I remember them saying there are 7776 in each 135 pack (plus 1 in flashlight).

7776/9 modules (15kWh each) = 864 per module

It is also my understanding is each module is 15KWH, so 9 for the 300 mile battery and 12 for the 400 mile battery. This brings up a question about the 800V charging. That would seem to require an even number of packs to reconfigure them, so now I wonder if the 135KW pack could be reconfigured. I really suspect now that the 135KW pack will charge at 400V (200KW), but the 180KW will have 800V and 300+KW charging. I need to go back and look at the patent in more detail.

This could very well be a contributing factor to the delay in offering the 400+ mile range, they also need to add the 800V switching, or they have decided to go directly to an 800V system.

 

[azbill]

It is also my understanding is each module is 15KWH, so 9 for the 300 mile battery and 12 for the 400 mile battery. This brings up a question about the 800V charging. That would seem to require an even number of packs to reconfigure them, so now I wonder if the 135KW pack could be reconfigured. I really suspect now that the 135KW pack will charge at 400V (200KW), but the 180KW will have 800V and 300+KW charging. I need to go back and look at the patent in more detail.

This could very well be a contributing factor to the delay in offering the 400+ mile range, they also need to add the 800V switching, or they have decided to go directly to an 800V system.

I had a detailed look at the patent application, all of the figures show an even number of battery modules, so that means to have the switching there cannot be an odd number, such as for the 135KWH pack. They are now stating on the web site 200KW sustained charging or higher, so I think it may only be higher for the larger packs.

 

[skyote]

I had a detailed look at the patent application, all of the figures show an even number of battery modules, so that means to have the switching there cannot be an odd number, such as for the 135KWH pack. They are now stating on the web site 200KW sustained charging or higher, so I think it may only be higher for the larger packs.

Disclaimer - I'm not an EE. Could you not have multiple connections to the "odd" module?

 

[azbill]

Disclaimer - I'm not an EE. Could you not have multiple connections to the "odd" module?

I am an EE, so no, you can either supply 450V from the charger or 900V from the charger as the source voltage. To charge a single module at 450V would require a more complex DC to DC converter in the vehicle for that odd module, thus adding more complexity and extra switching. The patent does not show that, only switches to go from 450 to 900. If they are doing the switch, then that would indicate they have added an extra module, but I doubt they have done that.

 

[ajdelange]

...Post removed because it was essentially incorrect. See #118 below

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