Charging an electric car is simpler than the terminology suggests. Three practical categories cover almost everything.
Slow charging from a standard socket
Plugging into an ordinary domestic socket. Adds a small amount of range per hour – typically enough overnight for daily commuting, and impractical for a full charge from low.
Useful as a backup rather than a plan.
Home and destination charging
A dedicated wall unit at higher power. Typically fills a car overnight comfortably. This is how most electric car owners charge most of the time, and it is why home charging changes the ownership experience so much.
The same power level appears at workplaces, hotels and car parks.
Rapid charging
High-power direct current at motorway stops. Adds substantial range in twenty to forty minutes, depending on the car and the charger.
Used for long journeys rather than routine charging, and more expensive per unit.
Why charging slows as the battery fills
Charging is fastest at low state of charge and tapers substantially above about eighty percent, to protect the battery. That is why journey planning targets eighty rather than full – the last twenty percent takes as long as the first sixty.
What determines your actual speed
The lower of what the charger delivers and what the car accepts. A car limited to a certain rate will not go faster on a more powerful charger.
Temperature also matters – a cold battery charges more slowly, which is why cars precondition when navigating to a charger.
The practical summary
Charge at home overnight if you can. Use rapid charging on journeys. That covers nearly everything.