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      Converting KW charge rate to miles of range added per hour

      Discussion in 'Model S: Battery & Charging' started by dweeks, Aug 1, 2015.

      1. dweeks

        dweeks Member

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        #1 dweeks, Aug 1, 2015
        I will be stopping at the La Posada hotel in Winslow, AZ. They have a HPWC, and the notes say...

        "The Tesla HPWC charges at 16.8kW per hour."

        I think in miles of range added per charging hour. What is this charge rate in miles per hour?
         
      2. FlasherZ

        FlasherZ Sig Model S + Sig Model X + Model 3 Resv

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        #2 FlasherZ, Aug 1, 2015
        Very roughly, full 20 kW is 60 mi/hr of charge, so that would be 50 miles/hr of charge.
         
      3. rxlawdude

        rxlawdude Member

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        #3 rxlawdude, Aug 1, 2015
        I hope you have a dual charger, or you'll be limited to 10kW/hr.
         
      4. dweeks

        dweeks Member

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        #4 dweeks, Aug 1, 2015
        Yes, dual charger equipped!
         
      5. David99

        David99 Active Member

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        #5 David99, Aug 1, 2015
        The equation would be at his location 59/20*16.8 = 49.5
         
      6. FlasherZ

        FlasherZ Sig Model S + Sig Model X + Model 3 Resv

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        #6 FlasherZ, Aug 1, 2015
        Few people have true 20 kW. I get 60 mi/hr at a true 20 kW (250V service * 80A, although some is lost to the cable dissipation). Most people have 19.2 kW (240V * 80A). So 59/19.2*16.8 = 51.625.

        But either way, it's close enough to estimate it at 3 * kW.
         
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