Rivian R1T Real Off Road Range - Based a Data Scientist Owner

[@AWheeler45]

As a(n) *attempting to be* patiently waiting Max pack reservation I appreciate the opportunity to live vicariously through your videos

[@rexbriggs3251]

Much appreciated!

[@jabberwolf7348]

Definitely one of the better Rivian test/review videos !!

[@rexbriggs3251]

Glad you liked it!

[@rickdibello3823]

Great, great job!!!! Great info. One thing I'm not sure about is that I believe the battery only has 125 kw/h usable. I believe the remaining 10 is a buffer.

[@rexbriggs3251]

Good point. I re-ran the data with 125kwh 13:32 to 13:40 -- 63% used x 125KW = 79KW vs. 85KW, but that is still a lot higher than the 67KW the trip computer reports. It would make the mi/kWh 1.22 vs the 1.36 trip computer reports. Either way, trip computer gets it wrong on terrain like this. It does better with level travel. I really appreciate you pointing to the 125KW, and will work on figuring this out. I think the key will be building a model to predict the percent of battery used so you know how far we can go before running out of juice.

[@harrywalker5836]

@@rexbriggs3251 100 miles, wouldnt get to the 4x4 trails.. plus. you need smaller rims, bigger tire side wall.. it helps..there a w/end 4x4 truck, expensive for that.. maybe 1 dayer.. ev,s are a waste of space. cost more than there usefull use.. diesel, or lpg. nothing else. petrol hasnt got the range. lpg is cleaner than ev,s. being green is a giant scam.. for yupi,s with no real education on world events..leaded fuel to unleaded, sulfur dioxide.. whats better..

[@manuelias86]

By the way, on Tom and Kyle's 0-100% charge videos, they got 125KW usable battery capacity. The 135KW os the toral battery capacity. Looks like Rivian has 10KW buffer to protect the battery.

[@rexbriggs3251]

That is a good insight! Thank you. I'll re-run the numbers of 125 usable.

[@rexbriggs3251]

13:32 to 13:40 -- 63% used x 125KW = 79KW vs. 85KW, but that is still a lot higher than the 67KW the trip computer reports. It would make the mi/kWh 1.22 vs the 1.36 trip computer reports. Either way, trip computer gets it wrong on terrain like this. It does better with level travel. I really appreciate you pointing to the 125KW, and will work on figuring this out. I think the key will be building a model to predict the percent of battery used so you know how far we can go before running out of juice.

[@MrCrocker2]

@@rexbriggs3251 Idk how much power would have gotten used by the little breakfast kitchen usage. But could that have had an impact on the range calculation?

[@RetreatHacker]

I've been waiting for someone to do this test! Thanks! Not a lot of suspension travel, apparently.

[@myusernamethisiss]

That's really nice foootage and editing. Thanks for the info!

[@kennychen2209]

Great video!! Excited to swap to the 20ATs

[@JCZ0RR0]

Whoa, I was expecting it ot use a lot less juice, with offroad being low speed and all. Interesting!

[@Speedlimitreviews]

Great video! Don’t forget that the Trip computer only tracks the vehicle while in drive. So vampire drain (gear guard running) or using the 120v outlet (for that hot plate,etc ) used energy that is not captured in the trip computer. Running the air or heat while not in drive/or moving also is not tracked. So you can see how some kWh can go missing. Also like others stated useable vs full capacity are different. But this is great information! Rivian is working hard (I’m sure) to work on better sleep performance and vampire drain. But keep the great Content coming and testing. Long time EV owner myself.

[@rexbriggs3251]

Good points. My concern was the Trip computer UNDER estimates the kWh use by a lot, and it seems to get it the most wrong when having to average in downhill, which adds power pack into the battery. For me, at least, the problem with underestimating it is that I think I can go further than I really can. I would not want to get it wrong on a big off road trip, so my hope is the info will help better plan. I may create a little calculator in Google Sheet to help, and I'll share it so others can add data and tweak it to suit their interests.

[@joshuaswanson4322]

Trip computer actually does count vampire drain. Tested it myself. When I leave it overnight I reset it, then when you start in the morning it will add what the battery usage from overnight for example.

[@Speedlimitreviews]

@@joshuaswanson4322 did you clear the trip computer, then charge you truck, then unplug your truck and let it sit, until it loses a percent or two. Then check your trip computer. If it shows kWh use while not doing it then it’s tracking. Which the ones I’ve been in have not done that. They could have updated very very recently but I was going off my testing. Again I could be wrong.

[@joshuaswanson4322]

@@Speedlimitreviews Yes confirmed. Reset the trip computer, leave the truck to vampire drain, come back to the truck it will still say 0 kWh used, put it in drive and get ready to go then check again and it will show the vampire drain.

[@flamaest]

Congrats on the rivian. Really cool truck. I was wondering if you would be willing to record a camping trip where you use a regular 120v mini refrigerator, hot plate and microwave, while sleeping in the truck using HVAC in camp mode; to see how much power you use over a three or four day trip? I think a lot of people would learn from your experiences here.

[@araiaf]

+1

[@Strooling]

Well I say this is what Rivian wanted the truck to do. They made it for adventure type trips like this.

[@AraCarrano]

We too like the Brake Regen. @ 6:15

[@kialoa8278]

Great video and data analysis!

[@TeamSnap760]

I like your videos.good job

[@darinbrazil5496]

Is the "Stay off Mode" a new feature released during an update and if so has this cured the phantom drain issues Rivian was having while parked?

[@thevigpr]

Thanks for sharing this video. Really appreciate your scientific approach to calculate battery use based on inclines etc. Just curious, did you have the location dropped on Rivian GPS? I’m wondering like Tesla does it show you how much battery is required for the return trip?

[@RichardMillet-RM]

As others have mentioned, it's likely 125 kWh (usable) with 10 kWh reserved. So try using 125 kWh in your calculations.

[@rexbriggs3251]

I added the following note to the Description of the video: NOTE: The video uses the 135kw battery back size for a relative efficiency index. It has been pointed out that Out-of-spec found 125kw is the usable capacity. This means instead of 2.04 miles per kWh shown in the video, 125kWh would be 2.20 mi/kWh as the reference point. In other words, if you are getting 2.20, that would equate to 275 miles on the 20" AT Tires with a full battery. But, if you got an efficiency of 1.10, that is half the typical miles per kWh (an index of 0.5), then you would get half the total range 137.5 total miles). All my calculations in this video are based on the miles per percent of battery, so these remain the same. I was showing the translation to kWh so we can use the on-board computer and its efficiency measure in the trip computer to get project a range. In other words, if the computer is showing 0.8 mi/kWh, then divide 0.8 by 2.2 then multiply by 275 total range to get your expected total range (100 miles from a full battery, in this example).

[@cruiser97eric1]

Good info, thanks for sharing.

[@RetreatHacker]

When you cooked, how much power did you use?

[@augsu]

Were you able to regen the whole time, or did you have to use the emergency (hydraulic) brakes?

[@bc4198]

How do you like the regen for "engine braking"? Any issues for those long, steep declines?

[@rexbriggs3251]

It is helpful off road to be sure. On road-trips, it seems like recent software dials it down on long descents to manage how much regen it can take in.

[@carlosbeldia]

But a real off road trip includes winching and really rough terrain.... How does it goes in that conditions?

[@rexbriggs3251]

Probably the Hollister range is most similar. Probably about 8hrs of play on a charge.

[@scotteg]

Awesome, thanks!

[@XcessCapital]

Great video, but OUCH!!! Curious what the difference is between EV and gas. My truck MPGs drops by about 25% on trips like this. Range goes from 400 down to 300 miles. Would love to make the switch, but the truck seems really limited.

[@Deetroiter]

Random question…Canadian?

[@calglider13]

I would think twice about buying a Rivian. I ordered a prelaunch edition Rivian RT1 5 years ago. I ordered a fully loaded pickup for$ 73000.00, the truck they wanted me to buy for the same price was a stripped, basic truck. No tent, no roll out kitchen. so I canceled my order. I guess I will buy one of those ugly Tesla trucks... I still have not received my 1000.00 refund! I am not a happy camper! The truck is a good looking, but when a company wants to change the price on me, Kind of a bait and switch.

[@raghavendratripuraneni6738]

What difference would it make if you are not a data scientist

[@shirobuta_]

Moar

[@OshoLee]

160miles total rqnge off road?

[@mini2nut67]

I have a 130 mile, 2-night over landing trip coming up in November. It has a charging station near the entrance. Based on your experience should I go for it?

[@omni_0101]

How'd it go?