All EV chargers deployed by ChargeLab and its partners require a reliable and consistent internet connection to communicate with the software. Network connectivity can be achieved via cellular networks (3G/4G), Wi-Fi, and Ethernet.As the back-end software provider for thousands of EV charger deployments, we can confidently report that the #1 cause of issues for EV charger deployments is connectivity.
Test connectivity before installing your EV chargers. Everywhere you plan to install an EV charger, you should aim for:
- 4G signal strength of −80 dBM or greater if you are using 4G connectivity.
- Wi-Fi signal strength of −67 dBM or greater if you are using Wi-Fi connectivity.
General Tips
It is important not to overlook the importance of connectivity. This can lead to unexpected issues down the road, from EV drivers not charging to crucial data for utility programs not being reported. Here are our top tips for EV charger connectivity:
- Most EV chargers support multiple connectivity modes and can be installed with one as a primary and another as a backup. For example, a 4G primary connection with Wi-Fi as a backup. Or Wi-Fi primary connection with Ethernet as a backup. Running two types of connectivity to every EV charger adds costs, but can be worth the investment. Especially if your EV chargers are critical to fleet or public infrastructure.
- Installing Wi-Fi mesh networks or testing 4G connectivity is not the specialty of most certified electricians. Communicate transparently with your installer about connectivity. If they are not an expert, ask them to recommend a local service provider that specializes in commercial building connectivity. There are many installers of lobby Wi-Fi, security cameras, and other smart building technologies that are well-equipped to help connect your EV chargers.
- Make an action plan for what happens if there are connectivity issues. The platform will automatically notify you when chargers go offline. Identify in advance who will address these issues: your own facilities management specialist, your electrician/installer, or your smart building connectivity expert.
- Many EV chargers can be configured to offer free charging even when they become disconnected from the network, or to allow offline charging for authorized RFID card users who will be billed when the charger comes back online. Make sure to speak to your installer about setting up these offline redundancies. Communicate with your users about ordering RFID cards if relevant.