There are two primary settings related to managing charge rates, "real-time" charge rate and maximum charge rate. We'll discuss how to set and manage those settings below.
Maximum Charge Rate:
Maximum Charge Rate is a setting available that sets the permanent ceiling for allowable charging. It should be configured to match the breaker rating available for the power supply to the charger. If using the NEMA plug installation method, this setting should never exceed 40A since the NEMA plug itself is only rated for 40A max. To adjust this rate, you can go to the EV Charger settings page (can navigate to settings via instructions here) and use the select menu to find the appropriate amperage. Here's a screenshot of what that selection menu would look like in the app:
Real Time Charge Rate:
You can adjust the EV Charger's real time Charge Rate via the slider available on the Control page in the app (instructions on how to navigate to Control page can be found here). By tapping on the "pencil" icon, you can then tap/hold on the slider to adjust as needed. Real Time charging rates can be adjusted in single amp increments from 6A (charger floor) up to the Max Charge Rate setting mentioned above.
A screenshot from the mobile app to show you what the real time charge rate slider looks like from the Control page.
If your charger is installed using the NEMA 14-50P plug, the max charge rate will be 40A.
If you want to raise the charge rate up to 48A, the charger needs to be hardwired and connected to the WiFi. The Emporia app will request a PIN to change the dedicated breaker size, what allows you to slide the bar to higher rates, and it's there for safety (as per NEC requirements). The electrician who installed the charger for you has created the PIN. You can ask them or contact Customer Support in case you need to reset the PIN.
NOTE! Adjusting amperage/charge rate can be a safety concern - hence the requirement to have a qualified professional be the one to manage the charge rate from within the app with the required PIN. If setting a higher charge rate than what your electrical supply has been prepared for, it can cause serious safety hazards.
Feedback and Suggestions
This knowledge base is pretty new for the Emporia team. Our goal is to provide all of the information we can to help you manage your energy in better ways. If this article wasn't helpful, or we could be more clarifying on any points please reach out to the Customer Support team and we'll certainly work to improve these guides.