You will see charging speeds quoted in kilowatts (kW), and the numbers differ a lot between models. Here is what they mean for everyday driving.
Kilowatts, simply put
A charger’s kW rating is how fast it can push energy into the battery. A home plug delivers about 2 kW, a home wall box 3.3 to 6.6 kW, and a public DC fast charger far more. The car has its own limit too, and you always get the lower of the two.
What it means in practice
The 007 takes up to 200 kW on a CCS2 DC charger, the 06 E3 up to 167 kW (30–80% in about 18 minutes) and the Box up to 50 kW (30–80% in about 26 minutes). On a long trip that is a coffee and a stretch, not an afternoon.
What changes the speed
Charging is fastest between roughly 20% and 80%, then it slows to protect the battery. Cold or very hot batteries charge slower, and a busy charger shared between two cars gives you less. Our cars manage battery temperature themselves to keep charging as quick as conditions allow.