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Pack weight 40kwh

Discussion in 'Tesla Energy' started by Steve3008, Apr 22, 2017.

  1. Steve3008

    Steve3008 Member

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    Using the 2170 cells any guess how low they could get the total pack weight down to for a 40kwh pack? I am thinking of an off road application.
     
  2. miimura

    miimura Active Member

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    #2 miimura, Apr 22, 2017
    Last edited: Apr 22, 2017
    Raw cells in 18650 size are 48g. Raw 21700 cells reportedly have a max weight of 75g and minimum discharge of 3750mAh. I will leave the rest of the math to you.
     
  3. Saghost

    Saghost Active Member

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    That seems improbable - 50% more weight and only 10% more energy than the later 18650 cells?

    I thought Tesla was expecting to get a 10-15% improvement in energy density from going to 2170...
     
  4. miimura

    miimura Active Member

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    Yes, the 3750Ah is suspect. It was from a document that was several years old that was talking about Samsung Cells. The same document was talking about Silicon rich anodes coming in the future. That is today's technology in Tesla's battery packs.
     

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