In today’s booming EV era, charging connector standards are a hot topic for owners. J1772 and CCS, two main charging standards, are often mentioned but differ in many ways. This article will explore their differences and how to choose the right EV charger based on your needs.
1. What is J1772?
SAE J1772 (also known as Type 1) is the mainstream standard for AC charging of EVs in North America, set by SAE. It features a 5-pin design, supporting Level 1 and Level 2 AC charging (up to 240V). Its connectors are widely used in home and public charging stations. It offers a compatible, reliable, and safe charging solution for EVs from different manufacturers and models. It’s the standard charging interface for non-Tesla EVs in North America.
2. What is CCS?
The Combined Charging System (CCS) is a charging standard that adds large DC pins to the J1772 connector. It integrates AC and DC charging functions and supports up to 350kW charging power. It can quickly charge EVs in a short time. CCS1 and CCS2 are its two main versions, used in North America and Europe, respectively. CCS’s charging interface lock and other functions enhance charging safety. Major car markets in North America and Europe widely adopt it, making it an important force in promoting the development of EV fast-charging infrastructure.
3. Comparison of J1772 and CCS
| J1772 | CCS | |
| Charging Type | Level 1 and Level 2 AC charging | Level 1, Level 2 AC charging, and Level 3 DC fast charging |
| Connector Design | 5-pin standard AC connector | 7-pin (with two additional large DC pins) |
| Charging Power | Maximum output power is 19.2kW | 50kW – 350kW |
| Cost | Lower cost, suitable for budget-conscious consumers | Uses more advanced technology, with a higher initial cost |
| Vehicle Compatibility | Standard connector for many EVs in North America | Mainly used in Europe and North America, adopted by multiple manufacturers |
| Application Scenario | Home and public charging stations | Fast-charging stations and long-distance travel |
4. How to Choose the Right EV Charger?
4.1 Determine the Vehicle Connector Type
Check the vehicle manual: It will clearly state which charging connector (J1772 or CCS) your EV uses and provide detailed charging information.
Visit the manufacturer’s website: Enter your model to get comprehensive information on its charging system.
Inspect the charging port: A J1772 connector is round with five small pins, the standard for Level 1 and Level 2 charging in North America. A CCS connector has two additional large pins below for fast DC charging.
Consult the dealer: If unsure, your local dealer can quickly tell you the EV connector type and charging suggestions for your vehicle.
4.2 Consider Charging Needs
Vehicle compatibility: The charger must match your vehicle’s connector type. J1772 is for Level 1 and Level 2 charging, while CCS is for fast charging.
Charging speed: Choose the charging speed based on your vehicle’s needs. For fast charging, a CCS charger is a better option.
4.3 Evaluate the Installation Location
Consider whether the charger will be installed at home or in a public place. Ensure it supports the required power output and safety features.
4.4 Focus on Charger Advantages
J1772 infrastructure and chargers are usually cheaper, making them an affordable choice for Level 1 and Level 2 charging. CCS chargers offer fast-charging capabilities and are a future-proof investment. They provide efficient and effective charging solutions for EVs.
5. Summary
By comparing J1772 and CCS, we find they each have unique applications and strengths. J1772, with its low cost and wide compatibility, is a common choice for home and public charging stations in North America. It meets basic daily charging needs. CCS, with its powerful fast-charging ability, excels in long-distance travel and scenarios where charging time is critical. When choosing a charger, owners should consider their vehicle type, charging needs, and installation environment. Only then can they find the best charging solution to meet their EV usage needs and enhance travel convenience.
Common Questions
1. Can J1772 and CCS be used interchangeably?
J1772 and CCS can’t be fully used interchangeably. CCS evolved from J1772 by adding DC fast-charging functionality to its AC charging. Vehicles with CCS interfaces can use J1772 connectors. You can’t use J1772 connectors for DC fast-charging or connect them to interfaces that only support CCS.
2. Is J1772 a Type 2 charger?
J1772 is not a Type 2 charger. J1772 is the DC charging interface standard set by SAE, mainly used for EV charging in North America. Type 2 chargers usually refer to AC charging interfaces using the IEC62196-2 standard, widely used in Europe. They differ in interface shape and electrical parameters.
3. Are there adapters for converting between J1772 and CCS?
Adapters do exist for converting between J1772 and CCS. These adapters allow vehicles with CCS interfaces to use J1772 charging facilities. They convert charging protocols to achieve compatibility between the two standards. However, DC fast-charging stations usually don’t support them. Always ensure the adapter is compatible with your vehicle and charging equipment when using it.
