Charge at a 3.7 kW charging station for one hour will allow your car to travel approximately 20 km. Charging at a 11 kW station for one hour, allows traveling of approximately 60 km. All vehicles can be charged with all three voltages, but not all vehicles can take the higher-capacity charge. Today's pure electric cars can usually charge at 11 kW but hybrids electric cars cannot. More and more vehicles are designed to use the higher voltages, so 11 kW is the future-proof choice.