Not sure if this has been covered yet... Tesla says their in-car charger has an efficiency of 92%. Meaning, if you add 20kWh to your battery SOC then you actually drew 21.74kWh from your AC supply (and will pay accordingly for that)
Does anyone know if Supercharger or Chademo DC charging is any different? Still the 92% efficiency... or perhaps better?
Does anyone know if Supercharger or Chademo DC charging is any different? Still the 92% efficiency... or perhaps better?