If your vehicle charges successfully at a DC fast charger but does not charge with your Easee charger at home, it does not necessarily mean there is a fault with the charger.

A common misconception is that successful DC fast charging confirms that the vehicle is functioning correctly in all charging scenarios. However, DC fast charging and AC home charging are fundamentally different charging methods that rely on different technologies and vehicle components.

AC Home Charging

When charging with an Easee charger, the vehicle's onboard charger converts AC power from the electrical grid into DC power that can be stored in the battery.

Before charging can begin, the vehicle and charger must establish communication. The vehicle is responsible for signalling that it is ready to receive power, and the charging cable is also part of this communication process.

DC Fast Charging

With DC fast charging, the power conversion takes place inside the charging station rather than in the vehicle. As a result, the vehicle's onboard charger is largely bypassed.

DC charging also uses different communication protocols, charging standards, cables, and startup procedures than AC home charging.

What This Means

Because these are two different charging methods, a vehicle can successfully charge at a DC fast charger while still experiencing problems with AC home charging.

For this reason, successful DC fast charging does not rule out an issue with the vehicle or charging cable. A fault affecting the onboard charger or the communication required for AC charging may only become apparent when charging at home.