Video: R2 Owner demonstrating a charging session at a Tesla SC

[TexasBob]

An important difference to some people for sure.

Honest question - Aren't the vast majority of chargers available nationwide 400v? And don't most sites that support 800v de-rate when multiple vehicles are present?

I don't know that vast majority is correct characterization there are more 800 volt chargers in the US today both in terms of stations and charging points then there were total Tesla Superchargers 5 years ago. With respect to the derate question, there is nothing about 800 volt architecture that forces a derate. Looking forward over the next few years The bulk of the new systems that are getting put in are 800 volt.

(Edit: I had misremembered the statistic. It is more 800V then Tesla superchargers 5 years ago. Sorry I've corrected it.)

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[Jeremy3292]

He posts it- http://youtube.com/post/UgkxTPLm32LLaPCfnRitJ92fXsXJpugPJJU5?si=gSJb-XWk4vs2rzPe

So 20% to 76% in 21 minutes? Seems great to me for 400v architecture. If you start at 10% instead even better.

 

[cwq93r]

When it shows miles added during charging, is that based off of EPA rated range or your recent driving habits? What if I’m using navigation and I’m going up into the hills? Will that range added adjust accordingly?

 

[Jeremy3292]

When it shows miles added during charging, is that based off of EPA rated range or your recent driving habits? What if I’m using navigation and I’m going up into the hills? That range afed adjust accordingly?

EPA miles. Miles are worthless to use as a metric. % only.

 

[Ilovejunebugs]

Isn’t that charging speed in line with expectations? I admit I am not sitting through the video but seemed like 20(ish) to 75% in 20(ish) is what you’d expect, no?

It is, based on what rivian has said. Unfortunately I don't think this helps more people get into ev's.
I don't know why but even though most people will not need dcfc other than a few times a year, knowing that if/when they need it it'll be fast, available and reliable is a barrier to adoption. One barrier, anyway- cost is also a factor though that is coming down.
These are all I hear about at the ev shows I attend with my r1t, as well as from family and friends.
Not saying I know everything just reporting what I hear. I am too much of a "fangirl" to be objective

 

[emroch]

What's up with the axes on that charging graph? There is no SOC axis label, so I'm assuming the major grid lines are 25/50/75/100, but why is the left axis scaled to 310? Also, where are the units?! It wouldn't be hard to add "kW" after the axis labels, or add a vertical text label with "charging rate (kW)" to actually label the axis properly.

Given the R2 has a max charging speed of 210kW, it seems like that left axis should be scaled to 0-250 (to leave a little margin) to better utilize the space. And the "charge limit 100%" text label in the bottom could have been shown as a threshold line on the graph so it is clear when the green bars reach the line that the limit is reached.

Is this screen similar to the R1 charging screen or is it new for v2.0 software?

 

[happy hodag]

This R2 video from a couple weeks ago shows a 28 min charge from 6% to 78% with the full charging curve.

 

[DuoRivian]

This R2 video from a couple weeks ago shows a 28 min charge from 6% to 78% with the full charging curve.

Glad to see a couple of these charging sessions out there for people to watch - who needs big shot (in their own mind) YouTubers?

 

[Jonger1150]

Thanks for posting. This is a bit lower than what I expected: adding 54% in 22 minutes (180 EPA miles). Fwiw almost identical to the Subaru Trailseeker recent video posted.

The gap with the shorter range 800V systems like the Volvo P10 EX60 would add 225 miles in 16 minutes. The long range 800V systems (iX3, Volvo P12) add 280 EPA miles in 19-21 minutes.

Until 800V this is pretty much what we're gonna get. Are there any 400V vehicles that add more kWh per 10 minutes that this or are we at the theoretical limit?

 

[VandalSibs]

What's up with the axes on that charging graph? There is no SOC axis label, so I'm assuming the major grid lines are 25/50/75/100, but why is the left axis scaled to 310? Also, where are the units?! It wouldn't be hard to add "kW" after the axis labels, or add a vertical text label with "charging rate (kW)" to actually label the axis properly.

Because The graph is showing two different data points on the same image. It's showing charge rate (black line), and state of charge (green bars). The vertical axis therefore shouldn't have units on it. The bottom axis is time.

If you tap on a particular part of the graph, it will show you what the SoC and charge rate were at that particular point in time.

 

[emroch]

Because The graph is showing two different data points on the same image. It's showing charge rate (black line), and state of charge (green bars). The vertical axis therefore shouldn't have units on it. The bottom axis is time.

If you tap on a particular part of the graph, it will show you what the SoC and charge rate were at that particular point in time.

I don't think the solution is to remove the units from the axis entirely, it would be much better to have a primary and secondary y-axis each with proper labels and units. i.e. "charging rate (kW)" on the left and "state of charge (%)" on the right.

This is just a poorly presented graph that would have points deducted by any grade school math teacher.

 

[VandalSibs]

I don't think the solution is to remove the units from the axis entirely, it would be much better to have a primary and secondary y-axis each with proper labels and units. i.e. "charging rate (kW)" on the left and "state of charge (%)" on the right.

This is just a poorly presented graph that would have points deducted by any grade school math teacher.

I both agree and disagree, as I like having all the data where it should be (multiple axis labels), but being able to tap on a part of the graph and see exact values kinda negates the need for axis labels (Rivian's implementation here).

 

[TexasBob]

Until 800V this is pretty much what we're gonna get. Are there any 400V vehicles that add more kWh per 10 minutes that this or are we at the theoretical limit?

It should get a bit better. Rivian is aiming for 70% add in 29 minutes so a 54% add in 22 minutes is a little slow but +/- 3 minutes, yes this is 400V for everyone.

 

[rbdavis808]

I don't think the solution is to remove the units from the axis entirely, it would be much better to have a primary and secondary y-axis each with proper labels and units. i.e. "charging rate (kW)" on the left and "state of charge (%)" on the right.

This is just a poorly presented graph that would have points deducted by any grade school math teacher.

Dual dataset Cartesian graphs with a common x-axis unit (e g., time) are nearly always shown with the differing y-axis units respectively labeling independent y-axes on the left and right.

No y-axis labels at all would be exceedingly uninformative, although in a space-constrained display where one dataset's min/max values could be reasonably assumed (e.g, SOC from 0 to 100), having only a single labeled y-axis would not be crazy.

 

[Mos Eisley]

I don’t need ANOTHER reason to need reading glasses while I’m driving. KTCSS. Keep the Charts Simple Stupid.

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