The J1772 is an Electric Vehicle charging standard set forth by SAE. This charger (EVSE, or Electric Vehicle Supply Equipment) connects with, communicates with, and charges the vehicle. In this standard, the EVSE manages the link from the grid or household power to the vehicle. Think of it as a smart outlet that communicates with the vehicle to "handshake" and ensure safe charging. While J1772 is not required by any federal agency to sell an EV in the US, it has now been adopted by all the manufacturers of passenger vehicles worldwide.
If you have a Tesla, or other non-J1772 vehicle, adapters are usually available.
A destination charger is to entice people to use the establishment that has installed the charger. It is usually a high-efficiency charger installed at the location so visitors who shop or stay there can get a charge. Most chargers are not free to use, and most require a credit card to plug in to.
We recommend charging your electric vehicle overnight, just like your mobile phone. Pull into your garage, plug in, and you'll wake up to a full charge the next morning. Even better, you'll pay only a fraction as much for electricity as you did for gasoline.