question

@matt1309

The system will have no control over you EV charger however there is a powercontrol feature you can manipulate.

Using a lower input current from the grid you will limit what is drawn.

In practice anything above that is drawn from the battery on the inverter until the low SOC you set in ESS, at this point the whole load switches to grid.

If the limit you set cannot charge the battery and run the EV load then it will not charge the system batteries.

Hi Matt! Did you find a way to limit charge current of scheduled charging?

I have the same request as @matt1309.

Why stressing the Multiplus-II and the battery every night, when there is enough time to charge with less power.
The scheduled charging menu should have a setting to control the charge current of charge power.

Adjusting the charge current using the DVCC menu works but it is very inconvenient. It would require a manual adjust to the normal settings every morning that the PV is able to charge the battery with max solar power.

With night tariffs or especially the upcoming hourly variable tariffs it would be a beneficial feature to adjust the charge current individually for the 5 scheduled charging menus to maximize savings and help the grid by drawing power when the demand is low

Don’t you already have a set value for the CCL (charge current level) controlled by your battery to avoid overstressing. Or is it because you mostly have 4-5 hours charging time with low tariff and then want to charge at even lower range?

I agree it could be great to have a CCL for the Scheduled charge in case you also need power for something else and to minimize the amp in the system since you actually have time charge at lower level.

It would also allow to move the working point of the Multiplus in the area of best efficiency and improve overall efficiency (anything I²t related).

Is there already a solution for this?

I want to use the max “scheduled” charge current because of the fan noise at night.

This is something I have wanted for some time since I have Aquion batteries on ESS. They enjoy long slow charge for maximum density and I have 8 hours off peak charging window each night. If I reduce the scheduled charging power down to use the full 8 hours charging period to get to 100% for the morning then when the PV kicks in (vary variable in Ireland) then my charging rate is insufficient during the winter when I want to use every bit of solar power as quickly as possible but it is still limited from the night setting. The sun can come out and give me 4kw but 50% of this goes straight to export. Manually switching the charging rates each day is not practical or going to happen....I do enough of that manually switching on the immersion heater when the batts at 100% and I am exporting 2500w.

I have been looking at Node Red as an option for Immersion heater diversion which is difficult with batteries using regualr diverters and if it can also achieve different scheduled charging rates for night and day this would be a good solution for getting better efficiency. I am not into programming so I have a lot to learn to implement these two functions.