Frequently Asked Questions About EV Chargers

 How does a EV charge work?

In North America, the standard EV charger uses a SAE J1772 plug—also known as a J plug—which attaches to the EV’s port. The standard SAE J1772 plug is compatible with all EVs and PHEVs, with the exception of Tesla vehicles. An adaptor to make the J1772 plug work with Teslas is typically included with the vehicle or available for purchase online.

Both the EVSE and iEVSE stations can be installed by plugging them into a 240v outlet or having a certified electrician hardwire the unit into a powersource. Once installed, they will be ready for use immediately.

If you’ve purchased an iEVSE and would like to use a network service provider to track your usage and/or connect with your local utility, that provider will need to be set up.

What is the difference between Level 1 and Level 2 EV chargers?

The biggest difference between Level 1 and Level 2 EV chargers is the speed of charge. Level 2 EV chargers have a typical charge time of 3-to-8 hours—that means you get up to 32 miles of driving range per hour of charging. Level 1 chargers, which come with the vehicle, have a typical charge time of 11-to-20 hours, or only 4 miles of driving range per hour of charging.

What does OCPP mean?

Open Charge Point Protocol (OCPP) is an application protocol for communication between the Electric Vehicle (EV) charging station and a central management system, also known as a charging station network. The unique thing about true OCPP chargers is that you aren’t locked into using a specific network. Other non-OCPP EV charging stations won’t work unless you use a specific network that can communicate with that specific charger. OCPP chargers give you the freedom to choose the network you want to use and switch companies later. Learn more about OCPP.

Can EVs be left charging left unattended?

Yes, charging stations are designed to stop the transfer of electricity to the vehicle when the car is completely charged. Because the transfer of electricity will automatically stop, your vehicle can stay plugged in overnight as well.

Ruihua is a premier electric vehicle charging station company, providing Electric Vehicle Supply Equipment (EVSE) charging stations 

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