Cybertruck Highway Range Test by Out Of Spec

[MountainBikeDude]

So the Cybertruck and Rivian have pretty similar charging curves and efficiencies. Not surprising.

Rivian is still relatively slow at charging compared to the best in the business (Hyundai, Kia, Porsche, Lucid), but Tesla isn't any better. So for all the hype around the 4680 cells, Tesla hasn't made any real technological break throughs.

As they touch on in the more recent outofspec video (from today) they haven't seen how the Cybertruck will handle its 350kW charging limit as there is no V4 charger, only dispensers, and CCS needs an updated adapter for the CT. Maybe the CT charge curve can be massaged once that happens, but I'm curious how well the 4680's will handle the the additional thermal load. Will it just balance out to be the same as now and just de-rate faster?

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[manitou202]

As they touch on in the more recent outofspec video (from today) they haven't seen how the Cybertruck will handle its 350kW charging limit as there is no V4 charger, only dispensers, and CCS needs an updated adapter for the CT. Maybe the CT charge curve can be massaged once that happens, but I'm curious how well the 4680's will handle the the additional thermal load. Will it just balance out to be the same as now and just de-rate faster?

Supposedly they split the pack into two 400V packs when charging at a 400V charger. So I don't think the thermal load will be any different at the cell level on a 800V charger. Maybe the charging port, or some other components might be thermally limited at 400V, but it seems unlikely.

 

[MountainBikeDude]

Supposedly they split the pack into two 400V packs when charging at a 400V charger. So I don't think the thermal load will be any different at the cell level on a 800V charger. Maybe the charging port, or some other components might be thermally limited at 400V, but it seems unlikely.

That was actually in the back of my mind while I was writing. Guess we'll have to wait for the follow up @OutofSpecKyle video when V4 chargers see the light of day.

 

[vandy1981]

Maybe the charging port, or some other components might be thermally limited at 400V, but it seems unlikely.

He speculated that the charger derated during one of his sessions due to overheating at the handle. That's more of charger thermal management issue than a vehicle issue but I'd guess the dispenser thermal loads would be lower with a higher input voltage.

 

[scottf200]

Supposedly they split the pack into two 400V packs when charging at a 400V charger. So I don't think the thermal load will be any different at the cell level on a 800V charger. Maybe the charging port, or some other components might be thermally limited at 400V, but it seems unlikely.

That was actually in the back of my mind while I was writing. Guess we'll have to wait for the follow up @OutofSpecKyle video when V4 chargers see the light of day.

I don't know what you mean by supposedly. It is even in the Service Mode that owners have access to. Tesla even has videos on accessing it (other Teslas shown in videos).

>>>>>>>>>>>>>>> Below is while not charging >>>>>>>>>>>>>>>>>

Charging (via High Voltage menu) - Control charging two ~400v "packs" vs one ~800v "pack"

DPDT (Double-Pole Double-Throw) - "Series" or "Parallel"
With two poles and two throws for each pole, the DPDT switch has six terminals — two inputs and four outputs (or two outputs for each individual circuit). A DPDT switch controls two separate circuits with the same actuator, which is generally designed for on-on or on-off-on function.

 

[Supratachophobia]

As they touch on in the more recent outofspec video (from today) they haven't seen how the Cybertruck will handle its 350kW charging limit as there is no V4 charger, only dispensers, and CCS needs an updated adapter for the CT. Maybe the CT charge curve can be massaged once that happens, but I'm curious how well the 4680's will handle the the additional thermal load. Will it just balance out to be the same as now and just de-rate faster?

Well, I would imagine that he slowness isn't a function of how much the charger can output, correct? And since there are fewer cells to shove energy into, wouldn't a faster v4 charger not matter anyway if the cells are already at max C?

 

[KootenayEV]

The Out of Spec graph for "miles added at 70mph" is mis-leading because very few people run their vehicle below 10-15%, let alone to 0%, and the CT charging curve sucks after 25% SOC. If they had an option to show charging starting from 15% and going to 70% or so, the Rivian would blow the CT out of the water... ie what everyone seems to be experiencing in real-life so far.

(And I highly doubt V4/800V will change much, since the evidence so far is that the pack itself is the limitation; witness the steep drop in rate at 25% SOC)

 

[scottf200]

The Out of Spec graph for "miles added at 70mph" is mis-leading because very few people run their vehicle below 10-15%, let alone to 0%, and the CT charging curve sucks after 25% SOC. If they had an option to show charging starting from 15% and going to 70% or so, the Rivian would blow the CT out of the water... ie what everyone seems to be experiencing in real-life so far.

(And I highly doubt V4/800V will change much, since the evidence so far is that the pack itself is the limitation; witness the steep drop in rate at 25% SOC)

100% that'd be a great option. I did the other chart mocked up like this a couple of days ago.
I often go 10%-70% in my 80K plus miles of road tripping experience

 

[Supratachophobia]

The Out of Spec graph for "miles added at 70mph" is mis-leading because very few people run their vehicle below 10-15%, let alone to 0%, and the CT charging curve sucks after 25% SOC. If they had an option to show charging starting from 15% and going to 70% or so, the Rivian would blow the CT out of the water... ie what everyone seems to be experiencing in real-life so far.

(And I highly doubt V4/800V will change much, since the evidence so far is that the pack itself is the limitation; witness the steep drop in rate at 25% SOC)

So that makes sense to me. My total "travel" miles which would be superchargers are a model S are about 14-17% of my total miles driven. And for the most part, I always aim to arrive at 20% knowing that by driving a few mph faster, it will be 15%.

That's data across a quarter million miles and a decade.

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