Support of coarsecurrent (1A steps) for Škoda MyŠkoda (Public API) vehicle template

[buennerbernd]

Is your feature request related to a problem? Please describe.
My car: Skoda Enyaq 85 SW 6.0.0, same applies to my former Skoda Enyaq IV 80 SW 3.8
My wallbox: Elli Charger Pro (1st Gen.)

The wallbox Elli Charger Pro has a mA-interface, but converts internally to 1A steps.
Because of this is unexpected to evcc this leads frequently to unexpected 1A jumps and evcc overshoots the available surplus. I assume there is currently no way for the wallbox to tell evcc that it only supports 1A steps.
So I need the feature at the vehicle configuration. I know, it runs better with the coarsecurrent feature. I have used it in the past. (see below)

Describe the solution you'd like
Please add support for coarsecurrent (1A steps) to the vehicle template Škoda MyŠkoda (Public API).
Some templates already support this feature, but the majority doesn't. Probably it is a good idea to add it to all templates.

Describe alternatives you've considered
When I used my old vehicle config that supported coarsecurrent the charging with evcc worked much smoother.
Unfortunately that config is not supported by Skoda anymore:

vehicles:
- type: enyaq
  title: Enyaq
  icon: car
  user: *** 
  password: ***  
  capacity: 80  
  name: ev3
  phases: 3
  cache: 15m
  features: ["coarsecurrent"]

Additional context
The real root cause for that issue is in the wallbox. It would be also fine for me if the wallbox gets a 1A switch, but I assume at the vehicle it is easier to implement because the infrastructure is already there.

[github-actions]

Thanks for the detailed report. The coarsecurrent vehicle feature already exists in evcc (used to work around chargers/wallboxes that only apply current in 1A steps) and is currently exposed as a param on other VAG-group templates (vw, audi, seat, cupra, drivesomethinggreater) but was missing from the skoda and myskoda templates.

I've opened #33649 to add the coarsecurrent param to both templates/definition/vehicle/skoda.yaml and templates/definition/vehicle/myskoda.yaml. No backend logic changes are needed — the shared features.tpl include already renders the feature once the param is set, and core/loadpoint.go already reads it to relax charger step accuracy requirements.

🤖 Generated with Claude Code

[andig]

The wallbox Elli Charger Pro has a mA-interface, but converts internally to 1A steps.

Is it really the wallbox doing this or the vehicle?

[buennerbernd]

A colleague can charge his Enyaq with an OpenWB in 10 mA Steps. So I assume it is the Elli Wallbox with EEBUS.

[andig]

Please verify. In any case- if that's it- the fix doesn't belong onto the vehicle.

[buennerbernd]

I don’t know, how to verify or proof this. I have just a single Wallbox and no other car available for testing.
The conclusion is that I probably don’t get a solution.

Even if it’s a wallbox issue; the proposed solution is so simple and conform with the other Volkswagen based vehicle templates that it doesn’t hurt anybody.
With the coarsecurrent feature is nothing more special than with the other extended properties in the configuration, that only a few users need.

Please don’t drop this feature request.

[andig]

Sorry, we can't add configuration settings if its unclear if they're required. If its the box it belongs onto the box and nowhere else (or the next car will have the same problem on your box). Happy to reopen when confirmed with logfile.

[buennerbernd]

What is your expectation?
How can I help to get this fixed at the wallbox level?
In the logfile I can only see the set current and the real charge currents for the 3 phases.
The real charge current is clustered in 1A steps.
There is no proof if it’s the car or the wallbox.

[andig]

Test with different car/wallbox