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Is 350 miles enough for towing 10k pounds?

Discussion in 'Cybertruck' started by Carmageddon, Nov 13, 2020.

  1. alexgr

    alexgr Member

    Joined:
    Aug 13, 2019
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    Tulsa
    Another way to explain this can be this: the wasted energy, although it will increase with increasing load, increases in a smaller proportion than the used energy.
    Let's see where 100 units of energy go
    Low load case: 50 units go to heat and 50 units go to motion, moved 10 miles,
    overall energy use 100 units per 10 miles = 10 energy/mile
    TRAVEL energy use 50 units per 10 miles = 5 energy/mile
    Heavy load case: 40 units go to heat and 60 units go to motion, moved 6 miles ,
    overall energy use 100 units per 6 miles = 16.7 energy/mile or 67% more energy consumption.
    TRAVEL energy use 60 units per 6 miles = 10 energy/mile or 100% more energy consumption.
     
  2. Zybane

    Zybane Member

    Joined:
    Oct 22, 2015
    Messages:
    357
    Location:
    Washington D.C.
    The amount of energy left over to propel the vehicle with an ICE; even after most of it is wasted in producing heat is still TONS more energy than electric vehicles contain. That's why a semi truck with a 80,000lb GVWR and huge aero drag still gets an average of 6.5 MPG.

    Electric vehicles due to physics of the trailer drag, extra tire rolling resistance with heavy trailer weights and low total energy capacity of their battery packs make them terrible for towing. The only plus side is that they can climb grades easy and can get heavy loads moving fast. But SUCK down their batteries extremely quick doing so.

    Anyone thinking they are going to get more than 150 miles towing a 10K lb trailer at normal highway speeds with a Tri-motor CT is going to get a rude awakening.

    And no.. towing at 50 MPH on the interstate isn't a realistic usage scenario unless you are 90 years old. That's semi trucks passing you at 25+ MPH and blowing you all over the road speed.
     
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  3. alexgr

    alexgr Member

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    I think electric vehicles are great at towing, they just need a larger battery if you want to tow for 300+ miles.
     
  4. rhumbliner

    rhumbliner Member

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    Sep 24, 2015
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    Location:
    Jackson.Hole Las.Vegas
    I’ve been enjoying this discussion but have to quibble with this statement. Driving my Ram 1500 on the level I average about 17-19mpg, but traveling over Teton Pass (6300’ to 8400’) my mpg drops to around 5mpg. I don’t think gravity treats ICE’s any differently than EV’s.

    The same is true when I’m driving my Ram into the notorious Wyoming headwinds.
     
    • Like x 1
  5. NHK X

    NHK X Member

    Joined:
    Nov 18, 2017
    Messages:
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    Location:
    PNW
    My thoughts after two Tesla’s now.... always get max battery you can afford. If you plan on towing, I would go for tri motor without question.

    My 3 year old model x is at 16% degradation at 83k miles. Also factor in cold weather, wanting to go to slightly more remote places or places that are at elevation while towing a heavy tailer. I honestly would pay extra to have closer to 600-650 miles of range.

    My set up for camper trailer towing for family trips will be trimotor with solar option if possible, and Bowlus road chief as the trailer for best aero/weight to size considerations unless something better comes out in the meantime.
     
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  6. Aaf0052

    Aaf0052 New Member

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    Sep 2, 2020
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    Location:
    Charlotte
    For reference - I have a oct 2018 model 3 dual motor awd... recently did a road trip towing 2500-3000 lbs in a 5x8 uhaul... from South Carolina to Denver

    Hit some really high winds in Missouri and Kansas while climbing in elevation... Tennessee mountains were a little challenging as well range wise.

    Max range was around 130 mi MAX. at around 46% efficiency
     
  7. j-rho

    j-rho Member

    Joined:
    May 1, 2018
    Messages:
    65
    Location:
    San Diego
    Have towed an enclosed race car trailer a lot with a Model X 100D. I expect double the usable range in a tri-motor CT because it start off much bigger and dirtier in the airstream, should be less impacted by the trailer's aero hit.

    [​IMG]
     

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