Supported Models

• EN+ Caro
• EV Switch charger

Firmware Versions

The following firmware versions have been confirmed to work with Charge HQ. Other versions may also work but have not been tested.

• 1.5.149

Safety Advice

Always follow the safety instructions provided with your charger. Always use a qualified electrician where required.

When configuring the charger, ensure that the maximum charge Amps remain correctly configured to match the circuit the charger is connected to. This step should be completed by the installer of the charger.

Setup Instructions

Step 1 - Connect the charger to the Internet

• Power up the charger
• Connect to the charger’s WiFi hotspot. The network name matches the serial number, starting with SN…
• Log in to the configuration interface on the IP address 192.168.4.1
• The username and password are provided in the charger manual (case sensitive)

• Click the “Network Settings” button and set
  • Networking Mode: WiFi
  • Operating Mode: Auto
  • Select your home WiFi network
  • Provide the password for the home WiFi network
  • The field below the WiFi password field is the OCPP server address, enter: ws://ocpp.chargehq.net:80/ocpp16
  • Note - you must enter it exactly as above.
  • The interface will automatically append the serial number of the charger to the end of the OCPP address. It should now look like:
    ws://ocpp.chargehq.net:80/ocpp16/SN100512398734

• Click Confirm
• The charger will reboot. You will need to reconnect your computer / device to the WiFi hotspot on the charger.
• On the home screen of the chargers configuration interface, confirm that the Network Status is Online. This indicates that the charger has an Internet connection.
• Copy the Charger Serial number from the Charger field on the home screen, starting with the letters SN and ending with the digit before the space and hyphen. Do not copy the hyphen and subsequent numbers.
  • e.g. For Charger SN100524032841-1.5.149, the serial number is SN100524032841

Step 2 - Other charger settings

• In the charger configuration portal, click the “Charger Settings” button

• The Load Balance setting can be left as the default or adjusted if required (not specific to Charge HQ).

• Click “Switch Charging Modes” and check that “Network” is selected

• Set the Max Charging Current to match that advised by your electrician.

Step 3 - Configure Charge HQ

• Open the Charge HQ app
• Go to Settings tab -> My Equipment -> Connect your Smart Charger
• EVSE ID: paste or enter the serial number of the charger obtained in Step 1.
• Min and Max Power (A): Update these if you believe they are different to the default settings.
• Click Next

Step 4 - Confirm communication with Charge HQ

• Wait for 2-5 minutes
• In the Charge HQ app, navigate to Settings → My Equipment → Smart Charger
• Confirm that the Connection State reads “Online”

Troubleshooting

• For the Caro charger to work with Charge HQ it needs to be connected to the Internet via a reliable WiFi connection, and needs to be correctly to configured to communicate with Charge HQ.
• You can check these two requirements via the charger configuration interface, when you login the home screen should show:
  • Server Status: Connected, this indicates there is an OCPP connection to Charge HQ
  • Network Status: Online, this indicates the charger has an Internet connection
• If the charger does not connect to Charge HQ immediately, try turning it off then on and wait 5 minutes.
• Using the mobile app supplied by the vendor may change the Networking Mode set in Step 1 to Bluetooth. This will stop the charger from working with Charge HQ. Ensure the Networking Mode remains set on WiFi
• At the time of testing, validation of settings entered on the configuration interface did not work correctly on a mobile device. If you are having trouble configuring the charger, try using a laptop / desktop computer for configuration.

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