Electric car drivers are understandably fascinated by charging times. A car with a short range and slow charging could be a source of constant frustration, while a model which can take in the watts quickly can shave hours off a long journey.
You might reasonably wonder why there are so many variations. With this in mind, we spoke to a technical expert to get some answers.
Step forward Mark Potter, chief technical officer for 3Ti, a company that makes car park charging infrastructure using a mix of solar panels, mains electricity and battery storage.
He said that biggest factor in determining replenishment times is whether the electricity used is AC alternating current, or DC direct current.
“When you have AC charging, that box on the wall is just providing power to the car’s on board charger,” said Mark Potter. “With DC the charger is ‘off board,’ sitting by the side of the road, so it doesn’t use a vehicle’s on board charger.”