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Model 3 battery pack size

Discussion in 'Model 3: Battery & Charging' started by coupedncal, Sep 8, 2017.

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  1. coupedncal

    coupedncal Member

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    How does 220 miles equate to 50kWh pack size? My leaf is a 30kWh and the EPA range is 107 miles.

    107/30 = 3.56 miles/kWh

    Model 3:
    220/50 = 4.4 miles/kWh

    Considering the Model S gets close to 3.5 miles/kWh as well, how is the Model 3 so much more efficient than the Leaf? Where i am going with this is the battery pack is likely not 50kWh but it is larger than that.
     
  2. EV-lutioin

    EV-lutioin Active Member

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    Lower drag coefficient?
     
  3. insaneoctane

    insaneoctane Member

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    New design from the ground up. Leveraging what was awesome before and improving where possible. Brand new motor is the first Tesla with the new permanent magnet type. Inverter could be better. Lighter, smaller tires, it all adds up. Nonetheless, the Hyundai ioniq is even more efficient...
     
  4. coupedncal

    coupedncal Member

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    Has anyone done the reverse math and tried to obtain the range from 126MPGe that was recently published for the LR model?
     
  5. tracksyde

    tracksyde Member

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  6. Garlan Garner

    Garlan Garner Well-Known Member

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    Battery size does not matter to me as long as the range is correct. AND it is.
     
  7. Zaphod

    Zaphod Galaxy President (former)

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    Pack size is closer to 55 with 50 useable.
     
  8. Troy

    Troy Active Member

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    Hi, @coupedncal. Model 3 battery sizes are 55 and 80 kWh, not 50 and 75 kWh. Here is the data:

    Model 3 80
    Actual capacity: 80.5 kWh (350V*230Ah= 80,500 Wh. Source for 350V and 230 Ah, see page 3 here)
    Usable capacity: 78.27 kWh (Source: see page 6 footer here)
    Cell count: 4,416 (source)

    Model 3 55
    Actual capacity: 54.25 kWh (This is an estimate calculated from cell counts: 80,500/4416*2976= 54,250 Wh)
    Usable capacity: 52.75 kWh (This is an estimate calculated from cell counts: 78,270/4416*2976= 52,747 Wh)
    Cell count: 2,976 (source)

    Nissan Leaf 30
    Actual capacity: 29.88 kWh (360V*83Ah= 29,880 Wh. Source for 360V and 83Ah, see page 2 here)
    Usable capacity: 27.84 kWh (This is an estimate assuming charging efficiency is 87.6% like the Model 3. 31.78*0.876= 27.84)
     
    • Informative x 1
  9. Troy

    Troy Active Member

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    Yes. I have done the calculations here.
     

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