The difference between smart and dumb ev chargers is its functions and control. Dumb charger only provides electrical charge to an EV, whereas smart EV chargers provide much more than just charging. For eg: dynamic load management, remote start - stop etc.
Smart EV charging is the ability to judiciously control, manage and adjust all aspects of electric vehicle charging. Smart chargers contain hardware and software that can control its functions such as the ability to load management available power, restrict charger access, report charger availability, relay charging session information, alert to hardware abnormalities, support and troubleshoot issues remotely, and much more.
Fast charging simply involves putting more electricity into an EV battery at a faster rate or charging up an EV battery quicker. Smart charging allows vehicle owners, businesses and network operators to control how much energy EVs are taking from the grid and when.
Smart energy management makes all EV charging work more efficiently. This helps in easy working of chargers.