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Delta AC MAX Smart Charger Configuration

This page contains instructions for configuring
chargers with Charge HQ
Please refer to our
charger listing for details on supported models and charger specifications.

Supported Firmware Versions

Charge HQ has been tested with firmware version v01.25.12.00.

Step 1 - Obtain an EVSE ID from Charge HQ

  • Open the Charge HQ app
  • Go to Settings tab -> My Equipment -> Connect your Smart Charger
  • EVSE ID: this will be entered into your smart wall charger, note down that value displayed on your app or copy it to the clipboard. You will use this in Step 5.
  • Min and Max Power (A): Update these if you believe they are different to the default settings.
  • Click Submit

Note: The EVSE ID is a unique identifier for your charger, it cannot be the same as any other OCPP charger that is connected to Charge HQ. For this reason Charge HQ will provide you with a known-unique value that you can set in your charger.

Step 2 - Access configuration portal

Access the charger's web configuration tool as per the charger's install guide. Some tips:

  • The web configuration tool can be accessed via the charger's WiFi hotspot or Ethernet port. These tips assume the WiFi hotspot method.
  • The web configuration tool can not be accessed via the home WiFi network, even if the charger is connected to the home WiFi network.
  • The WiFi hotspot SSID is the charger's serial number, eg "JV99999999999WE". The password is printed on materials included with the charger.
  • With your device connected to the WiFi hotspot, access the web configuration tool at
  • Login using "admin", the password is printed on materials included with the charger.

Step 3 - Configure charger

Navigate to Configuration tab and set: 

  • Charge Box ID: <as obtained from the Charge HQ app in Step 1>
  • Supervision URL: ws://ocpp.chargehq.net/ocpp16/
  • OCPP Version: OCPP1.6J
  • Offline Policy: No Authentication
  • Max Charging Current (A): the rating of the circuit. VALUE MUST BE ADVISED BY AN ELECTRICIAN
  • Communication: as per your local network eg WiFi with SSID etc.

Note: if you prefer to connect via SSL/TLS, please refer to our SSL/TLS connection guide.

Step 4 - Confirm communication with Charge HQ

Lastly - confirm that the charger is connected to Charge HQ.

In the Charge HQ app, navigate to Settings → My Equipment → Smart Charger

Confirm that the Connection State reads “Online”

Step 5 - Confirm ability to control charging

  • From the home screen of the Charge HQ app, select “Charge Now”
  • Confirm that the LED lights on the charger and the display on your EV indicate the vehicle is charging.
  • Confirm that charging is occurring at the configured rate (Amps)
  • From the home screen of the Charge HQ app, select “Stop”
  • Confirm that charging of your EV has stopped.

Step 6 - Continue Charge HQ configuration

Charge HQ can now control your wall charger.

See our Step by Step setup and other app configuration guides for assistance with configuration of the rest of the Charge HQ app.

Tip: Admin Portal and OCPP

Once the charger has connected to Charge HQ via OCPP, the WiFi hotspot and the internal Ethernet port will be disabled. There is no way to access the web configuration tool whilst the charger is connected to OCPP.

To access the web configuration tool you can either:

  • delete the charger from Charge HQ
  • power the charger off and on


  • disconnect your home WiFi from the Internet / turn it off
  • power the charger off and on

Before deleting the charger record from Charge HQ, make sure you record the EVSE ID, you will need to ensure this same ID is used when you reconnect the charger to Charge HQ.

Once the charger has finished rebooting the WiFi hotspot and Ethernet port should be available, although the hotspot may switch off after a few minutes if you don't connect to it.

Offline Use

  • You can choose how the charger should behave if it cannot connect to Charge HQ by setting the "Offline Policy". This is found on the charger configuration portal under Configuratioin (see screenshot in step 3 above).
  • If set to Local Authentication, you can initiate charging manually using the RFID card supplied with the charger.

For troubleshooting instructions see the OCPP charger configuration guide.

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