**SAE J1772: The Standard for Electric Vehicle Charging**

Introduction

SAE J1772 is a standard for electric vehicle (EV) charging connectors and communication protocols developed by the Society of Automotive Engineers (SAE). It is the most common charging standard in North America and is also used in many other countries around the world.

SAE J1772 connectors are typically found on public charging stations and home charging units. They are also used on some electric vehicles, although many EVs now use the newer CCS Combo connector.

Benefits of SAE J1772

• Standardized: SAE J1772 is a standardized connector and communication protocol, which means that it is compatible with all EVs and charging stations that use the standard. This makes it easy to find and use charging stations regardless of the make or model of your EV.
• Safe: SAE J1772 connectors are designed to be safe and easy to use. They have a latching mechanism that prevents the connector from being accidentally disconnected, and they are also weatherproof.
• Reliable: SAE J1772 connectors are made from high-quality materials and are designed to withstand the elements. They are also tested to ensure that they meet all applicable safety standards.
• Convenient: SAE J1772 connectors are small and lightweight, making them easy to store and transport. They are also designed for easy one-handed operation.

SAE J1772 Specifications

SAE J1772 connectors are available in two configurations:

• Type 1: This connector is used for AC charging only. It has five pins, two for power, two for ground, and one for communication.
• Type 2: This connector is used for both AC and DC charging. It has seven pins, two for power, two for ground, two for communication, and one for pilot signal.

The following table shows the key specifications for SAE J1772 connectors:

SAE J1772 Charging Stations

SAE J1772 charging stations are available in a variety of configurations. Some of the most common types include:

• Level 1: These charging stations are designed for home use. They provide up to 1.4 kW of power, which is enough to fully charge most EVs overnight.
• Level 2: These charging stations are designed for commercial use. They provide up to 6.6 kW of power, which is enough to fully charge most EVs in a few hours.
• Level 3: These charging stations are also known as fast chargers. They provide up to 50 kW of power, which can charge most EVs to 80% capacity in about 30 minutes.

The following table shows the key specifications for different levels of SAE J1772 charging stations:

How to Use an SAE J1772 Charging Station

Using an SAE J1772 charging station is simple. First, locate the charging station and park your EV in front of it. Then, remove the charging connector from the station and plug it into the charging port on your EV. The charging port is typically located on the front or rear of the vehicle.

Once the connector is plugged in, the charging station will begin to charge your EV. The charging status will be displayed on the charging station's screen.

When your EV is fully charged, unplug the charging connector from the vehicle and return it to the charging station.

Tips for Using SAE J1772 Charging Stations

• Check the voltage and current of the charging station before plugging in your EV. This information is typically displayed on the charging station's screen. Make sure that the voltage and current are compatible with your EV.
• Park your EV close to the charging station. This will prevent the charging cable from being stretched too far, which could damage the cable or the charging station.
• Unplug the charging connector from the charging station when your EV is fully charged. This will help to prevent the charging station from overheating.
• Do not leave your EV plugged into the charging station for longer than necessary. This can tie up the charging station for other EVs that need to charge.

Conclusion

SAE J1772 is a safe, reliable, and convenient standard for electric vehicle charging. It is the most common charging standard in North America and is also used in many other countries around the world.

If you are considering purchasing an electric vehicle, be sure to familiarize yourself with SAE J1772. This will help you to find and use charging stations easily and safely.

Call to Action

If you are interested in learning more about SAE J1772, please visit the following resources:

• SAE International: https://www.sae.org/
• U.S. Department of Energy: https://www.energy.gov/eere/electricvehicles/electric-vehicle-charging
• Electric Vehicle Charging Association: https://evcharging.org/