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The Tesla method would be to engineer to the test rather than the real world and get a range projection that cannot be realistically achieved in the real world. I sincerely hope that they do NOT follow Tesla's lead. It mispresents the capability of the car in the real world. Other companies...

They have published some data that guides us to the efficiency. While this information is still the current information posted, we don't know if it has evolved as the vehicles have developed. They publish charging speeds for two different chargers. They do not specify which vehicle these are...

I have been driving those Eggs exclusively since 2015 and I completely agree with you. I don't regret my Xs and Y, because there was nothing else even close to their capability in the EV realm. But as a former Range Rover owner, I can't wait for the R1S. I see it as the X and Rover had a...

No. I get the power data from the EVSE meter and the energy added from the BMS. Again, this data comes from over 1,700 charges and there is a distinct difference with the Y vs the Xs. While not cheating, it does misrepresent the actual range of the car in the real world. Other Mfgs have...

I don't have personal experience with other EVs. However, Edmunds did their own testing which indicates that some EVs exceed their EPA rated range. It seems that Tesla has learned how to engineer to the test, but that tested range does not transfer to the real world. Edmunds Tested: Electric...

I have data on over 1,700 charges covering a 4.5 year period and 4 different Teslas. The data records the power from the charger and the amount of energy added to the battery. The Tesla data and the EPA has never made sense to me. I know very few people that can, on average over a period of...

My first three Teslas had charging loss of between 8 - 12%. However, our new Model Y has averaged a loss of only 1.7%. Same charging equipment, just different car. My assumption is that newer onboard charging tech is much more efficient.

I am hoping along with you. The early adopter penalty is always tough to swallow when they upgrade shortly after the early reservation holders get their vehicles (ie Tesla). As of Dec 2018, that was (is??) Rivian's plan. Give the people that waited years for their vehicles the 400v tech and...

Rivian has a patent on a method to essentially double the charging voltage. It is a voltage switching mechanism that allows 800V charging on a 400V battery pack. Patent Images (uspto.gov) It will be interesting if they can go from patent to real world. Could that be the way RJ gets to the...

Charging mph is derived from the efficiency of the car (energy to travel one mile) and the power available. The biggest difference between a Model 3 and R1T/R1S is the amount of energy needed to travel one mile. The R1S will be around 430 Wh/mi while the 2021 Model 3 is rated at about 220...

A tip for those that haven't supercharged (DC Fast Charged), the goal is not to fully charge the battery when on a road trip. You want to add just enough energy to get to the next charger on your route so that you arrive at each charger with about 20-25% State of Charge (SOC). This gives you...

That is a good point about specifications being fluid during the development of the vehicle. What was valid when they published it, may be different when they build it. Also, my experience is that the published maximum kW is not ever achievable over an period of time due to the charging curve...

You do realize that 99.9% of ICE cars use a fuel derived from oil, but only 0.4% of the electricity in the US is produced using oil. So the cost to drill, refine, ship and sell are not equal. I’m sorry, but it is absurd to say that the green house gas emissions are more for the electricity to...

The original specs for the vehicle state 160kW RIVIAN LAUNCHES WORLD'S FIRST ELECTRIC ADVENTURE VEHICLES WITH DEBUT OF R1T PICKUP - Rivian - Media Newsroom Rivian – Media Newsroom However, RJ has stated in an interview that the peak is actually 300kW

The car can take, according to Rivian website, charging rates up to 160kW.

They are wrong. The R1T/R1S come with an 11kW onboard charger. At an estimated energy consumption of 425 Wh/mi, this equates to 25.9 miles of range added per hour of charging. This, of course, requires a 60amp breaker hard wired to 48amp charger to get 11kW. 16 miles of range per hour...

It just surprised me that they would even position themselves against Rivian. Their presentation was well done and impressive. I see the value in their positioning as a Post Luxury as my family loves our Xs, but they are not Luxury. I am hopeful that the Rivian, even as an adventure vehicle...

A couple of points in reply (I am not an environmentalist, I also bought my Teslas for performance and tech, but expected some operating cost benefits): - With all electricity consumption considered, the X still consumes much less energy than a performance ICE SUV - You mention the energy loss...

It is very interesting. They show the Rivian as being inefficient at about 450 Wh/mi.

I have a six seat X and used to have a six seat Navigator as well as a seven seat X. I LOVE LOVE LOVE the six seat configuration. Great for our large dogs and access to 3rd row. Rivian, if you are listening, PLEASE make this an option! 21% in this poll and 26.5% in another poll asking the...