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Battery storage calculation

Discussion in 'Prime Main Forum (2017-2022)' started by Lee Jay, Feb 18, 2018.

  1. Lee Jay

    Lee Jay Senior Member

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    I've been wondering what the car reports as far as miles/kWh - from the battery or from the wall.

    Last night I drove 32.6 miles on a full battery and had 0.7 miles remaining reported when I got home. The reported efficiency was 5.3 miles/kWh.

    (32.6 miles + 0.7 miles) / 5.3 miles/kWh = 6.3 kWh. Recharging from the wall on 120V uses about 6.3kWh according to my Kill A Watt. This would seem to indicate two things:

    The car reports efficiency from the wall.
    My battery hasn't measurably degraded is 12,000 miles of mostly EV driving.
     
    #1 Lee Jay, Feb 18, 2018
  2. bisco

    bisco cookie crumbler

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    how would the car know at the wall, programmed calculation?
     
    #2 bisco, Feb 18, 2018
  3. Lee Jay

    Lee Jay Senior Member

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    That would be my guess. Assume a charger efficiency.
     
    #3 Lee Jay, Feb 18, 2018
  4. bisco

    bisco cookie crumbler

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    that's a good change from the pip. maybe goes along with their new philosophy of ev/hv percentages.
     
    #4 bisco, Feb 18, 2018
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