The NACS (North American Charging Standard) charging standard is a standard for fast charging of electric vehicles, also known as CCS (Combined Charging System). It was jointly developed by the European Organization for Standardization and the American Automobile Manufacturers Association to promote the popularization and development of electric vehicles in North America.

The NACS charging standard uses plug-in DC fast charging technology, which can charge an electric vehicle to about 80% of its capacity in 30 minutes. It supports charging at multiple power levels, including 50kW, 150kW, and 350kW.

In addition, the NACS standard also supports AC charging, which can use up to 43 kilowatts of power to charge electric vehicles. This charging method is slower than DC charging, but it is more suitable for use at home or in the office.

In general, the NACS charging standard is a flexible and efficient charging technology that can meet the different charging needs of electric vehicle users.