Towing and range issues

Perchslayer

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Just wondering if there is any info on how towing will impact range. I frequently tow a boat and with associated gear is about 1500lbs. The trimotor TC has a declared range of 500+ miles. I am assuming they are talking about a lot of city driving where braking will help charge the batteries. But on the open road towing a boat I am wondering what the range will be. Any thoughts?

 

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Just wondering if there is any info on how towing will impact range. I frequently tow a boat and with associated gear is about 1500lbs. The trimotor TC has a declared range of 500+ miles. I am assuming they are talking about a lot of city driving where braking will help charge the batteries. But on the open road towing a boat I am wondering what the range will be. Any thoughts?
I know that towing anything can reduce your range no matter if it's ICE or electric. I frequently tow a jet ski with full fuel (around 1,100 lbs) with a Toyota 4runner (CT3 on order) and I do see a reduction in range with that. It isn't terribly significant but enough to notice..
 

kev12345

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i would just assume you'll lose at least half your range towing if not more. You'll probably be able to drive 200 miles on a 500 mile battery.
 
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Ogre

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A couple personal observations.

With 2-3 bikes on a hitch mounted bike rack, my Model Y’s range drops by about 30%.

Talking to a guy towing a small (~12 foot) empty UHaul behind a Model X, he said his range dropped 20%.

EVs as a rule are much more sensitive to changes in weight and drag then ICE cars. Big things which cause a lot of drag in particular. I wouldn’t be surprised to see a 50% hit to range Pulling a bigger boat.
 


Luke42

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I see a 50% range impact when towing my travel trailer with my GMC Sierra Hybrid.

Having thrashed this one out with the numerate folks on this board, there's every reason to believe that towing will have a 50%-ish range impact on the Cybertruck, just like it does with my GMC Sierra.

When towing my TT, the aerodynamic cross section, the mass of of the truck, and the energy requirements are all effectively doubled. The trailer doesn't "know" or "care" what kind of engine the tow vehicle has -- it resists the motion of the tow vehicle with roughly the same force regardless of what powertrain the tow vehicle has.

So, I signed up for a 500+-mile CT because I want a 200+-mile towing range.

To underscore the 50% reduction, the Rivian marketing folks are also telling everyone that towing will cut the range in half -- and they're on the market already (though early in their production ramp-up). Rivian may be nerfing just a little bit so that they can overpromise and underdeliver -- because the range-impact really depends on the size/shape/weight of the thing you're towing. Most enclosed trailers (including my travel trailer) have roughly the aerodynamics of a garden shed -- so other types of trailers may have a lower range-impact.
 
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Firetruck41

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I would agree with the others, a 50% reduction is a good starting point as a guesstimate, until there is a production version with real world tow testing. Also, with the wide variation in trailer types, sizes, weights, aerodynamics, etc... There will never be a specific range hit, it will always be "YMMV", quite literally!
 

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I think boats are somewhat aero by nature so maybe consider getting a boat cover which you can put on it while you are going down the highway. Covering the top might well gain you some significant milage.
 

Crissa

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Aerodynamics is going to be the big thing, not weight. Weight in motion stays in motion and regen recaptures it more efficiently with more mass to slow down.

The Cybertruck may see more range loss per less aerodynamic trailers because it doesn't have as more frontal area to create a big shadow for the trailer to fit into.

But it will still be more efficient than the big brick Lightning or Rivian, which is what will matter when charging back up. More miles per minute.

-Crissa
 

John K

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If you determine the current hit in your ICE MPG, you can finger in the wind your EV range hit with your driving characteristics.

For those who madly typing the transitive property does not apply, eat an apple. This is a jumping off point.
 


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My experience with our Model Y pulling a small utility trailer loaded with a Ride on mower.
Range is cut by 50% on side roads and up to 60% the highway ( 70 MPH).
Hope this helpful.
 

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Maybe I am the only one who remembers this, but here it goes. The reason for the 500 mile range, according to Mr. Musk, is so the minimum range available to the driver under full load is 250 miles. He has stated on many occasions that Tesla will not make a car that won't have at least 250 miles of range. Tesla engineers and designers have a mandate to make vehicles that meet or exceed their I.C.E. counterparts. While none of us know what the range will actually be in every configuration, Tesla is not in the habit of making the bare minimum. The last example to support my understanding is the Tesla Semi tractor. The stated range is based on a FULL load of 80,000 pounds of payload, NOT empty. Given this, I would be exceptionally surprised if the range Tesla asserts for the Cybertruck is comparable to the passenger models instead of the commercial vehicle.
 

Ogre

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Maybe I am the only one who remembers this, but here it goes. The reason for the 500 mile range, according to Mr. Musk, is so the minimum range available to the driver under full load is 250 miles. He has stated on many occasions that Tesla will not make a car that won't have at least 250 miles of range. Tesla engineers and designers have a mandate to make vehicles that meet or exceed their I.C.E. counterparts. While none of us know what the range will actually be in every configuration, Tesla is not in the habit of making the bare minimum. The last example to support my understanding is the Tesla Semi tractor. The stated range is based on a FULL load of 80,000 pounds of payload, NOT empty. Given this, I would be exceptionally surprised if the range Tesla asserts for the Cybertruck is comparable to the passenger models instead of the commercial vehicle.
It’s possible. But 250 miles with what sort of 13,000 pound load? Pulling the pictured aero trailer?

250 miles is a solid base assumption. Particularly a boat which is light at potentially kind-of slippery In the air.

 

 
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