Exploring CCS and J1772: Evolving EV Charging Standards and Technologies

The Combined Charging System (CCS) uses a unified interface to meet different charging requirements, simplifying the charging process and improving charging efficiency. This standard was originally designed to address the incompatibility of charging interfaces and communication protocols between different brands and types of electric vehicles, and is now an international standard.

For J1772 fast charging, the CCS standard is compatible with the J1772 interface, which means that electric vehicles originally using the J1772 standard can be directly compatible with CCS. Secondly, the CCS standard supports higher charging power and faster charging speed, which makes the J1772 more efficient charging.

What Does CCS Stand for EV Charger

CCS is developed by automotive technology and equipment manufacturers to achieve consistency and standardization of electric vehicle charging. The CCS standard integrates the functions of AC and DC charging, and can meet the needs of slow and fast charging using a single interface, thus improving the convenience of charging. This standard has been widely used in the European and American markets, making different brands of electric vehicles have a unified charging standard.

CCS1 vs CCS2: Distinction in EV Charging Standards

CCS plug type has type1 ccs(CCS1 connector) and type 2 ccs(CCS2), both of which are composed of their respective AC charging standards plus two DC charging terminals. CCS1 is J1772 AC charging combined with DC terminals, which is suitable for the North American market. CCS2 is IEC 62196 AC charging combined with DC terminals.

Plug designSeven pinsNine pins
Charging powerUp to 200 kWUp to 350 kW
Communication protocolSAE J1772ISO 15118
Application areaNorth AmericanEuropean and Asian
Security-Additional safety contact door

Enhancing J1772 with DC Fast Charging:The Role of CCS Specification

J1772 is widely used in North America, and its excellent compatibility, through level 1 and level 2 charging, suitable for various scenarios, major mainstream companies have provided a wealth of J1772 standard products to meet market demand. However, the powerful function of CCS standard has made it quickly occupy the market in Europe, so companies in the United States have also begun to layout CCS combined with J1772 standard, because of the characteristics of the CCS standard structure, the original J1772 standard cars can directly use CCS2. This makes the charging speed of electric vehicles exponentially increase, and the CCS2 plug is gradually recognized by the North American market.


Combining AC and DC charging, CCS has played an important role in the standardization of charging facilities, and has gained international recognition because of its compatibility, fast charging, and safe and reliable charging. CCS can be divided into CCS1 and CCS2 to meet the needs of different regions. With the development of the electric vehicle market, there are also some adapters such as CCS1 to J1772 adapter, and I believe that CCS will continue to optimize in the future to give people a better charging experience.