It does support setting the current limit down to 6A.
I just released version 0.5.0. Release v0.5.0 Ā· Bebbssos/ha-defa-power Ā· GitHub
Only change from 0.5.0 beta 2 is fixes for some deprecation warnings.
Major changes since v0.4.0:
- Partial support for DEFA eRange chargers
- Eco mode can now be controlled from Home Assistant
- Added custom services to control charger
Will it be possible to use one phase only, so I only charge with 1.4 kW. If would be great at a cloudy day when using solar panels
No, DEFA has a hard limit on 6A.
Some EV do not start to charge if power is to low.
The DEFA Power app (and this Home Assistant integration) cannot limit the number of phases.
Changing between 1-phase and 3-phase operation can only be done in the DEFA Power Setup app, which connects to the charger via Bluetooth during installation.
Iām not sure whether that setting actually forces the charger to use only one phase, or if itās just configuration info telling the charger how itās wired, but itās not something the normal app or this integration can control.
It is possible to set the limit lower via the CloudCharge API (there is no server validation) but at least my 2024 Polestar 2 stops charging when i set it below 6A, I am not sure if it is the charger or the car stopping it.
@Bebbssos do you know if itās possible to set up RFID authentication via their OCPP 2.0.1 implementation?
My understanding is that the support for this feature on a protocol level is one of the big changes from earlier version of the OCPP protocol, but I assume that like with most open protocols there can be discrepancies between whatās technically possible and what the actual device supports.
I donāt know, Iām not familiar with their OCPP implementation.
As I understand it, OCPP 2.0.1 that Defa supports is only for charge point operators (CPO) and not for end consumers. At least in the implementation that Defa has made.
Try writing to them yourself and ask. [email protected]
Is it possible to track the charging amount of two different cars through the same charging station in Home Assistant?
Currently, the integration doesnāt track which car is charging, but the API does expose that data if the car is assigned to the charging session.
There are two main ways this could be implemented in the Home Assistant integration:
- A āCurrent Carā Sensor: A sensor showing which car is currently plugged in (during charging sessions). You would likely need to build your own template sensors or automations to split the energy usage into separate counters based on this sensorās state.
- An Action Call: A custom action (service) where you request the total energy charged for a specific car over a time period. For example, you could call this monthly to get the specific consumption for one car.
Both options require that the car is assigned to the charging session.
How exactly would you want this to work, and would either of these options fit your use case?
Will it work with Cloudcharge?
It uses the CloudCharge API to communicate with the charger.
So if you mean the CloudCharge app it should work with chargers that you control with it.
Ok. I only have the CloudCharge app and web access. Is that enough or what else do I need?
What charger model do you have? The integration is made for DEFA Power and DEFA eRange chargers.
If it shows up in the CloudCharge or DEFA Power app it should work with the integration.
A couple of DEFA eRange DUO
You probably just have to try it and see if it works.
I donāt know if anyone have tried to use this integration with a charger with multiple connectors before so that might be the problem or it is something else causing it.
Are you able to download the diagnostics data and post it?
Thanks for your answer. I will get back to this after a while when i start to rebuild my HA gui.
But the main point is measure two diffrent car total consumption on daily/weekly/monthly.