J1772 for Level 2 charging
The J1772 is the most widely used standard for Level 2 charging in North America. You'll find it in many parking lots, shopping centres, hotels, residential buildings, workplaces, and municipal spaces.
In practice, if you drive a non-Tesla EV, you'll be able to use most public Level 2 chargers without any issues. Tesla vehicles can also use this type of charger with the appropriate adapter. For fast charging, however, compatibility depends more on your vehicle's port and the connector available at the station.
CCS for fast charging
CCS is one of the main fast-charging standards in North America. It allows the same vehicle port to be used for both AC charging and DC fast charging. It builds on the J1772 design by adding two extra pins for fast charging.
Many vehicles use this standard for fast charging. If your vehicle has a CCS port, you'll have access to most public fast chargers.
NACS and the Tesla network
NACS is taking up an increasing share of the North American market. Long used exclusively by Tesla, this connector is now being adopted or gradually integrated by several other automakers. At the same time, part of the Supercharger network is also opening up to non-Tesla vehicles, depending on the station and the vehicle's compatibility or adapter.
In practice, some Superchargers are now accessible to non-Tesla vehicles, but not all of them. Depending on the location, you may need a vehicle that is already NACS-compatible or a suitable DC adapter. It's essential to check station compatibility via the app before heading out.
CHAdeMO: still around, but less common
CHAdeMO was long used on certain vehicles, particularly older models. It's still present at some fast-charging stations, but its footprint is shrinking compared to CCS and NACS.
If you drive a vehicle with a CHAdeMO port, be sure to verify your stops in advance before a long trip.