Can a Etrel charger be connected to a platform other than the manufacturer's?

Yes. The INCH Home, INCH Pro, INCH Duo models speak standard OCPP and let you change the server URL. In the charger's web page over Ethernet: fixed IP 192.168.1.250 (set the PC to 192.168.1.x), username root@etrel.com, password toor. Menu → Connectivity.

Which OCPP URL do I enter on a Etrel for askacharge.com?

wss://askacharge.com/askacharge/ocpp/your-brand, where your-brand is the brand identifier on askacharge.com; the charger appends its identity. The identity must match the one registered in the panel and the password stays blank unless the charger's OCPP credential has been enabled.

Do I lose the manufacturer's app when I set OCPP on a Etrel?

Some app functions move to the OCPP platform (start, cards, statistics). The hardware stays the same and you can go back by changing the URL again.

How to change the OCPP server URL on a Etrel charger (INCH Home) and connect it to another platform

A Etrel charger that speaks standard OCPP can be connected to any platform by changing one setting. Here is where that setting lives on INCH Home, INCH Pro, INCH Duo, exactly what to enter, and where people usually get stuck. Written by a platform (askacharge.com), but the procedure works for any.

Where the setting lives

In the charger's web page over Ethernet: fixed IP 192.168.1.250 (set the PC to 192.168.1.x), username root@etrel.com, password toor. Menu → Connectivity.

Step by step

Connect the PC by cable to the INCH, give the PC a 192.168.1.x IP and open 192.168.1.250. Log in with root@etrel.com / toor and change it.
Connectivity → Ethernet connectivity: enable DHCP and DNS under IPv4 (or a static IP) so the charger reaches the internet through your network. Save.
Connectivity → OCPP: Protocol type = OCPP 1.6 JSON; Central system endpoint URL = your brand's base URL (below); note the Charge point identity (serial number) to register it in the panel.
User → Charging authorization: Central System Only, so cards and starts are validated by the platform.
Save and restart (from the web page or with the reset button). It connects within a minute.

What to enter to connect it to askacharge.com

OCPP server URL	`wss://askacharge.com/askacharge/ocpp/your-brand` — your-brand is your brand's identifier on askacharge.com (shown under Chargers → Add, with the full URL ready to copy). The charger appends its own identity; if your unit only has a URL field and no identity field, enter the full URL: `…/ocpp/your-brand/identity`.
Charge point identity	The same one you register in the panel when adding the charger. Case-sensitive. With Etrel, the serial number is the easiest choice.
Password	Blank by default. If you enable the charger's OCPP credential in the panel (recommended for units exposed to the internet), the username is the identity and the password is the one the panel generates: OCPP Security Profile 2.
Protocol	OCPP 1.6J (JSON) or OCPP 2.0.1. Subprotocol `ocpp1.6` / `ocpp2.0.1`.
Before connecting	The charger must be registered in the brand with that identity; otherwise the server rejects the connection. Register under Chargers → Add.

Where it usually fails

Change the root/toor password: it is public and the charger is otherwise open to anyone on your network.
If authorisation stays local, cards registered on the platform will not work and it will look like an OCPP fault.
The identity is the serial number; do not change it after connecting.

If your brand isn't here

The procedure is always the same; what changes is where the setting lives: look in the manufacturer's app, in the charger's web interface (by its IP) or in the installer software for a section called OCPP, Back office, Central System or Server. You need to be able to enter the URL and, nearly always, the identity. If the field is locked or missing, the manufacturer has tied the charger to its own platform: read what to do when the manufacturer locks or switches off its server.

Other brands

WallboxPulsar Plus, Pulsar Max, Pulsar Pro, Commander 2, Copper SB AlfenEve Single S-line, Eve Single Pro-line, Eve Double Pro-line, Twin AutelMaxiCharger AC Lite, AC Wallbox, AC Elite, AC Ultra Grizzl-EGrizzl-E Smart, Grizzl-E Smart v2 (North America)V2CTrydan, Trydan Pro CircontroleNext Elite, eNext Park, Raption, Wallbox eHome (with communications module)ZaptecGo, Go 2, Pro EaseeHome, Charge, Charge Core, Charge Lite, One KEBAKeContact P30 x-series (and c-series as clients), P40 ABBTerra AC (W7, W11, W22)Schneider ElectricEVlink Pro AC, EVlink Smart Wallbox, EVlink Parking TeltonikaTeltoCharge (all variants)IngeteamINGEREV Fusion Wallbox, Fusion Street, Rapid OrbisViaris Uni, Viaris Combi+, Viaris City WebastoUnite, Unite MID, Next, Pure OpenEVSEOpenEVSE, EmonEVSE (ESP32 WiFi module)SiemensVersiCharge 48A, VersiCharge Blue 80A, VersiCharge IEC go-eCharger Gemini, Gemini flex, Gemini 2.0, Pro, HOMEfix/HOME+ (V3)EVBoxElvi, BusinessLine Gen4 (Everon closed 1 Dec 2025)

How to change the OCPP server URL on a Etrel charger