ADNOC’s new hub on the E11 quotes charging from zero to 80% in about twenty minutes, and Porsche quotes 10% to 80% in sixteen minutes for the electric Cayenne. Both figures are correct — in particular conditions.
The first factor: the car’s capability, not the charger’s. A 350-kilowatt charger will not help a car that accepts 120 kilowatts at most. The real figure is always the lower of the two.
The second factor: the charging curve. A battery does not charge at a constant rate; it accelerates early and slows considerably after 80% — which is why figures are quoted to 80% rather than to 100%.
The real figure is the lower of the car’s capability and the charger’s — always.
The third factor: battery temperature. In a Gulf summer the battery reaches the charger already hot, and protection systems reduce charging power to preserve cell life. The result is a longer time than quoted.
The fourth factor: state of charge on arrival. A car arriving at 40% will not get the time quoted from 10%, because the fastest part of the curve has already passed.
The practical conclusion: treat the quoted figure as a minimum rather than an average, and budget a reasonable addition in a Gulf summer. That does not diminish the value of fast charging, but it makes trip planning realistic.
