What Charge Socket is Used by Public EV Charging Stations in China?

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What Charge Socket is Used by Public EV Charging Stations in China?

China has rapidly become one of the largest markets for electric vehicles (EVs) in the world, driven by government policies, environmental concerns, and advances in technology. As the number of EVs on the road increases, so does the need for a comprehensive and standardized charging infrastructure. This article explores the charge socket used by public EV charging stations in China, providing insight into the country’s approach to EV charging standards.

The GB/T Charging Standard

In China, the GB/T standard is the official and most widely used standard for EV charging connectors. GB/T stands for “Guobiao/Tui,” which translates to “National Standard/Recommendation.” This standard encompasses both AC and DC charging connectors and is mandatory for all public charging infrastructure in the country.

1. GB/T AC Charging Connector

The GB/T AC charging connector is designed for Level 1 and Level 2 AC charging. It is similar in function to the J1772 connector used in North America and the Type 2 connector used in Europe. The GB/T AC connector features seven pins and is compatible with most electric passenger vehicles sold in China.

2. GB/T DC Charging Connector

The GB/T DC charging connector is used for fast charging and is designed to deliver high power levels for rapid battery replenishment. The DC connector has nine pins and is capable of providing power up to 250 kW, making it suitable for both passenger vehicles and commercial EVs such as buses and trucks.

Key Features of the GB/T Standard

1. Standardization

The GB/T standard ensures that all EVs and charging stations in China are compatible, facilitating a seamless charging experience for users. This standardization is crucial for the widespread adoption of electric vehicles, as it simplifies the charging process and reduces confusion for consumers.

2. High Power Capabilities

The GB/T DC charging standard supports high power levels, enabling fast charging for EVs. This is particularly important for long-distance travel and commercial applications, where minimizing downtime is essential.

3. Government Mandate

The Chinese government has mandated the use of the GB/T standard for all public charging infrastructure. This regulatory support has helped accelerate the deployment of charging stations and ensured uniformity across the country.

Comparison with Other Charging Standards

1. CHAdeMO

The CHAdeMO standard, developed in Japan, is another widely used DC fast charging standard. While CHAdeMO chargers are available in China, they are not as common as GB/T chargers due to the government’s preference for its national standard.

2. CCS

The Combined Charging System (CCS) is a popular fast charging standard in Europe and North America. In China, CCS is less prevalent, and most public charging stations use the GB/T standard. However, some imported EV models may support CCS charging through adapters.

3. Tesla Supercharger

Tesla uses a proprietary connector for its Supercharger network. In China, Tesla has adapted its vehicles to be compatible with the GB/T standard, allowing Tesla owners to use both Superchargers and public GB/T charging stations.

The Role of State-Owned Enterprises

State-owned enterprises (SOEs) play a significant role in the development and operation of EV charging infrastructure in China. Companies such as State Grid Corporation of China (SGCC) and China Southern Power Grid (CSG) are heavily involved in the deployment of public charging stations. These entities ensure that the GB/T standard is uniformly applied across the country, facilitating a cohesive and extensive charging network.

Future Developments

1. Expansion of Charging Network

China continues to invest heavily in expanding its EV charging infrastructure. The government has set ambitious targets for the number of public charging stations, aiming to support the growing EV market and reduce range anxiety for drivers.

2. Technological Advancements

Advancements in charging technology, such as higher power levels and improved efficiency, are expected to enhance the GB/T standard. These improvements will further reduce charging times and increase the convenience of using EVs.

3. International Collaboration

As the global EV market evolves, there is potential for greater collaboration between China and other countries on charging standards. This could include the development of universal adapters and compatibility solutions to facilitate international travel for EV owners.


Public EV charging stations in China predominantly use the GB/T standard for both AC and DC charging. This standardized approach, supported by government mandates and extensive investment in infrastructure, has enabled China to rapidly expand its EV charging network. The GB/T standard ensures compatibility across all EVs sold in China, providing a seamless and efficient charging experience for users. As the EV market continues to grow, ongoing advancements in technology and infrastructure development will further enhance the accessibility and convenience of EV charging in China.

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