Dual Standard Road Trip Range?

[cthelan]

Thanks for the correction!

If you want to do your own math:

Usable capacity * average efficiency in mi per kWh . Example 92 kWh * 2.0 mi per kWh efficiency gives a 100 to 0 range of 184 miles. @ 2.5 mi per kWh it jumps to 230 miles...etc

With that said, something still doesn't add up. 2 mi per kwh on a 70% charge should net 128 miles range. At that efficiency and using 95% of his battery he should be getting close to 175 mi range.

Doesn't add up. With this math the Standard would need to be gettin close to 3.0 average to get the advertised range (~270mi). Don't think that's realistic in any R1 out there.

Sponsored

 

[mpshizzle]

Doesn't add up. With this math the Standard would need to be gettin close to 3.0 average to get the advertised range (~270mi). Don't think that's realistic in any R1 out there.

All of the Gen 2 EPA ratings are based on numbers around 3 mi/kwh - I agree. Not very realistic. You'd have to be doing 50-60mph on a mild day with no elevation changes.

Pretty far fetched for places like where I live with highway that flows at 80+ with mountain passes everywhere

 

[cthelan]

All of the Gen 2 EPA ratings are based on numbers around 3 mi/kwh - I agree. Not very realistic. You'd have to be doing 50-60mph on a mild day with no elevation changes.

Pretty far fetched for places like where I live with highway that flows at 80+ with mountain passes everywhere

Maybe they're inflating the EPA numbers on Gen 2 but on our Gen 1 large pack we get advertised range.

131 kWh 320mi rated range (on AT tires)----Puts it closer to 2.4 mi/kWh. This is realistic. On our Gen1 R1T the lifetime average is right at 2.35 mi/kWh.

 

[iamnid]

I've done a few road trips with my standard pack. Since you mentioned your trips will likely be within California, weather affecting range probably won't be much of a thing.

I have driven from Riverside, CA to Sedona, AZ. I charged 2x along the way. Probably could have squeezed it with one stop at Quartzite, AZ but needed to stop in Phoenix to use the restroom.

I have also driven to Solvang easily in one charge -- stopped along the way to use the restroom (no charging).

I made it to Las Vegas in one charge (again, stopping along the way for the restroom).

You need to ask yourself how often you'll be doing roadtrips and whether, for that number of roadtrips, the added expense of the max-pack is needed.

For me, I road trip a handful of times per year and the battery can definitely out-drive my SO's bladder. It honestly seems to have similar range to the Model Y I had previous to this. It made no sense to me to pay for the larger battery for the few times a year I would need to charge en route. And, really, even on a long road-trip, you won't be saving much time with the larger battery unless you find yourself in an area where you can't make it between chargers.

 

[SoCal Rob]

Compare the efficiency to what you normally get. Also, if you plug in some trips into ABRP you can get a really good idea how it will perform. Battery size is about 106 kWh usable on standard range. My quad R1S has a lifetime efficiency of about 2.25 mi per kWh..standard dual will be slightly more efficient. At the efficiency of my quad I would get about 240 miles range with the standard 100 to 0. The true story is told by the 70% rule.

On a road trip, you want to limit usage to 70% of the battery (not charging above 80% or discharging below 10%).

I’m not a battery expert. I thought that the LFP batteries used in the Dual Standard could be charged to 100% frequently (and even require a charge to 100% periodically for calibration) and can be discharged to close to 0% frequently without significant battery degradation.

I always thought that my Quad Large on ATs in conserve and staying between 20% and 80% SoC (305 miles - 40%) would give me 183 miles of range and a Dual Standard with the same AT wheel package would provide over 200 since it could reasonably be charged to 100% and driven to well below 20%.

Of course, I could be wrong.

 

[Electrified Outdoors]

Doesn't add up. With this math the Standard would need to be gettin close to 3.0 average to get the advertised range (~270mi). Don't think that's realistic in any R1 out there.

Agree...that's why I am not quoting the EPA range. I am telling you what real life range will be. If you do all or mostly in town driving 270 miles is achievable but will not be the norm especially if your doing high speed highway. Rivian has started quoting more optimistic range numbers recently with gen2 which doesn't help.

The max pack has 142 kWh usable...so if you get 2 mi per kwh there that's roughly 284 miles on a 100 to 0 trip. I did not see 2.93 in any of my testing but I haven't tested a standard range to date.

Realistically 2.6 in mild flat conditions is very achievable at highway speeds 70 and below. If your doing 75+ on the highway it will be lower. For highway driving 240 miles should be doable if you keep speeds below 70 and weather is mild.

@SoCal Rob Yes and no on LFP. Rivian recommends once every two weeks or 500 miles for a 100% charge. So if for example you drive 500 miles a week then its recommended to do a 100% charge weekly. LFP should have more cycling capability than NMC but still isn't good to charge to 100% daily or frequently do deep discharges below 10%. LFP has a very flat voltage curve...NMC much easier to calculate SOC in the BCM from voltage but in LFP its much harder which is why 100% charge is required once in a wile to maintain accuracy of the SOC meter. I have seen it reported that Rivian resets it to 100% periodically and they do say in the manual that they will alert you in the app when it needs a 100% charge. Limiting charging above 90% and discharging below 10% still helps with longevity.

I am considering picking one up, but I want to demo one first and so far Rivian hasn't made a standard range demo vehicle available. Of course the wife wants the max pack, but with the Silverado it seems more sustainable to have one really large battery vehicle and then for us to have a smaller battery when we don't need all the range. So we are still pondering the Gen 2 upgrade.

If we get a standard range the 70% rule has to work for us....meaning 70% of the battery has to be enough range for us otherwise we need the large pack. If the 70% rule works for us I would charge it to 80% daily...which I do with most of mine now...only charging to 100% and the Rivian recommended intervals or when taking a long road trip.

 

[iamnid]

I’m not a battery expert. I thought that the LFP batteries used in the Dual Standard could be charged to 100% frequently (and even require a charge to 100% periodically for calibration) and can be discharged to close to 0% frequently without significant battery degradation.

I always thought that my Quad Large on ATs in conserve and staying between 20% and 80% SoC (305 miles - 40%) would give me 183 miles of range and a Dual Standard with the same AT wheel package would provide over 200 since it could reasonably be charged to 100% and driven to well below 20%.

Of course, I could be wrong.

You aren't wrong - my LFP R1S automatically changes the max charge to 100% on me very frequently. I think they previous poster was saying, for a road trip you wouldn't want to go above 70%. I disagree with this sentiment though. First, I try to arrive to a charger at no more than 10%. I'm fine charging up to 80% on a road trip. You definitely want to arrive with the lowest percentage possible though as the LFP pack charges REALLY fast up to about 25% (about 215kw). It slows down from there. Between 70-75% it holds the same speed (admittedly a slow 70-80kw). You definitely want to get out after 80% as it drops to about 40kw at that point -- better to arrive at the next destination sub 20% to take advantage of 200+kw speeds.

Here's the charging curve:

 

[Electrified Outdoors]

The 70% rule means that 70% of the pack range should work for your daily needs. 70% is the difference between 10% and 80% SOC. If you frequently need more than 70% of the pack capacity then you should opt for a larger pack.

80% provides better longevity…yes even for LFP packs…and as with pretty much all EVs charging above 80% on a road trip is SLOW

I don’t recommend deep discharging LFP below 10% as it can die on you prematurely…though in an emergency it shouldn’t if you follow the Rivian recommendation of a 100% charge every two week or 500 miles (whichever comes first).

PS. I didn’t have my coffee when I made my other post. 92 kWh is the standard pack for Gen 2 and ignore the part about 130 miles . That was another thread on standard pack

 

[woodcan]

All of the Gen 2 EPA ratings are based on numbers around 3 mi/kwh - I agree. Not very realistic. You'd have to be doing 50-60mph on a mild day with no elevation changes.

Pretty far fetched for places like where I live with highway that flows at 80+ with mountain passes everywhere

FWIW, in the 1 week I had my Gen 2 Dual Max in about 3-4 drives I had before it went into the Service Center I was getting just over 3 mi/kWh with 20" AT. I am no lead foot and the Austin traffic probably helped. 90% of my drive to/from work is highway 60-70MPH with rolling hills. Caveat is it was still under 100 miles so that is my very abbreviated experience. For the life of me I cannot get the Gen1 Quad loaner to show the efficiency graph instead of the minimap on the driver display no matter how many times I hold and click the buttons.

 

[mpshizzle]

FWIW, in the 1 week I had my Gen 2 Dual Max in about 3-4 drives I had before it went into the Service Center I was getting just over 3 mi/kWh with 20" AT. I am no lead foot and the Austin traffic probably helped. 90% of my drive to/from work is highway 60-70MPH with rolling hills. Caveat is it was still under 100 miles so that is my very abbreviated experience. For the life of me I cannot get the Gen1 Quad loaner to show the efficiency graph instead of the minimap on the driver display no matter how many times I hold and click the buttons.

I see 3+ regularly in my G2 dual max off highway. Sometimes even up to 4. But here in Utah, the highway flows at 80+ so efficiency on highway is

 

[comtns]

Thanks for people's experiences. I've yet to do my first road trip in my R1S Dual Standard (but want to, to make use of the free RAN charging period), so I had the same questions as the original poster. (My longest distance between chargers in my base model 3 was 183 miles, and typically I drove about 100 miles between fast chargers when road tripping.)

 

[Ngkgb]

So I had a chance to do an overnight test drive in a dual standard with the All Terrains(259 mile range). Did a trip to parents and in-laws here in SoCal. weather was perfect. It’s usually a 180 mile trip round trip but there was an accident so we were detoured and it became 200 miles. I’ve never had range anxiety with my Quad but when I got back in the R1S to go home, it said we’d only have 10 miles range when arriving. It’s not my first rodeo so I wasn’t too worried. Got back home with 25 mile range. So it looks like we would’ve got maybe 210 miles. Granted, it wasn’t a continuous trip(the first 100 miles were), but I also was rarely going above 75 and many times between 65 and 70. Olive think it will take More planning for trips in the dual standard.

Sponsored