Complete Guide to New EV Charging Guns: Differences and Protocols (CCS1/CCS2/GBT/CHAdeMO/Tesla)

Complete Guide to New EV Charging Guns:

Differences and Protocols (CCS1/CCS2/GBT/CHAdeMO/Tesla)

As the global penetration rate of new energy vehicles (NEVs) continues to rise, charging guns, as core energy supplement carriers, have seen their protocol standards and type differences become a key pain point for car owners, industry practitioners, and purchasers.

Different countries and regions have formulated exclusive charging gun protocols based on their power grid structures and automotive industry layouts. Among them, CCS1, CCS2, GBT, CHAdeMO, and Tesla's exclusive protocols dominate the global new energy charging market.

I. Core Significance of Charging Gun Protocols: Why Incompatibility Occurs with Different Protocols?

A charging gun protocol is essentially a set of "communication and power supply standards" that regulates the core links such as current transmission, signal interaction, and safety protection between the charging gun and the new energy vehicle, equivalent to the "communication language" between the charging gun and the vehicle. Charging guns with different protocols have inherent differences in interface shape, charging power, and communication methods. If the vehicle and the charging gun protocol do not match, even if the interface can be physically inserted, normal charging cannot be achieved, and it may even damage the vehicle battery or charging equipment.

The world's mainstream charging gun protocols are all designed around the three core principles of "safety, efficiency, and adaptation to regional power grids", but their development paths are greatly influenced by the regional industrial pattern—Europe leads CCS2, North America promotes CCS1, China adheres to GBT, Japan focuses on CHAdeMO, and Tesla has built an exclusive charging ecosystem with its self-developed protocol. This has formed the current pattern of "division without unification" of global charging gun protocols.

II. Detailed Explanation of Five Mainstream Charging Gun Protocols: Clear Differences at a Glance

1. CCS1 Protocol: The "Mainstream Fast Charging Standard" for the North American Market

CCS (Combined Charging System) is a universal protocol jointly launched by American and German automakers. Among them, CCS1 is a version optimized specifically for the North American market, upgraded based on the existing North American Type 1 (SAE J1772) AC interface, and is mainly adapted to North American power grid structures and vehicle needs.

Core Features: Adopts an "AC + DC" integrated interface. The upper part is a Type 1 AC interface for daily slow charging; the lower part adds 2 DC pins to achieve high-speed DC fast charging, meeting both home slow charging and long-distance fast charging needs. The maximum charging power can reach 350kW, and some new-generation equipment can exceed 500kW, with charging efficiency at the top level of the industry.

Applicable Regions: Mainly covers North American countries such as the United States and Canada, and is the mainstream charging protocol for new energy vehicles in North America. It is also adopted by some Latin American countries for reference.

Compatible Models: Mainstream models in the North American market, including North American versions of electric vehicles from brands such as Ford, General Motors, BMW, Mercedes-Benz, and Volkswagen. Since 2024, North American Tesla models have also gradually become compatible with the CCS1 protocol (adapter required).

Advantages and Disadvantages: High compatibility, supporting both slow charging and fast charging, and adapting to the North American single-phase power grid; the disadvantage is that the interface is relatively large, the infrastructure construction cost is higher than that of pure AC interfaces, and the compatibility with protocols in other regions is poor.