Hello, I am a new user of the EV charging station, which I use on the Studer NEXT3 Off-Grid system with a low charging current in the range of 6 - 11 A. I use EVCS in manual mode. I cannot force the charging station to charge all 3 phases, although it is connected to three phases. I see a picture of a green car, the connection has 3P and charging 1P. I do not see the possibility of influencing it in the settings. I use the web interface, the app does not want to connect. I bought the charger because of the load distribution. Please help me get out of disappointment.
Hello @Miso_Grno .
EVCS provides power for all three phases. If you see ācharging 1Pā, the EV is taking power only from one phase.
Can you check the cable marking to be sure that it is 3-phase cable(maybe you can provide some photos).
About the application, you mean Victronconnect, right? Can you also provide a few screenshots so we can see the problem?
Also, please check that Bluetooth is enabled in Settings->Network->Bluetooth(EVCS web interface).
Thanks Nicolas for the response. I see that the web interface is running on an old version v1.23/4.2 S/N: HQ2250GY9XA. In this version there is no 3P option, only 1P, there is no possibility to activate Bluetooth. The 3P are physically present in the EVCS, that is OK. I am 99.9% sure that all I need is a firmware update to a higher version. Please provide the .evcsup file. Thank you in advance.
ok. All FW files are stored on the Victron Professional in the Firmware section. Can you please check it? It will be useful also for the future updates
Thank you Nikolas, the update to version 2.0 was successful, I activated Bluetooth and EVCS communicates via local wifi and via Bluetooth/app. However, the web user interface only works on one old smartphone, other devices only display the logo and āLoadingā. I prefer the web interface, and itās still raining here. However, the main problem remains unresolved, I still donāt see the option to set the phases in the charger settings. What can you advise me?
Ok. As in my prev post. There is no any settings on the EVCS side that is controlling how many phases used for EV charging. EVCS give power for all 3 phases and EV deciding how many phases to use. So:
- Check your cable to be sure that it is 3 phase.
- Chech your EV setting to ensure that there is no any charging limit.
- As a last resort, check please wiring inside EVCS. If all wires connected to contactor and EV port. but itās unlikely that thereās anything wrong with it
Thank you. I have some screenshots, attached. My EVCS is mounted a bit complicatedly, but Iām going to dismantle it and check that all the phases are present. Could the problem be the wrong phase order? Wiring inside EVCS has colors like in a circus, I was counting on everything being ok inside. So Iām going to measure.
Hello Nikolas, I measured the phases on the terminal block inside the EVCS - all 3 phases are present, also at the NCH8 contactor input, also ok. I am attaching pictures. I am missing the option to select the used phases in the charger settings, as I found somewhere on the web: Screenshot from 2025-05-27 14-45-16.png in some older version, not mine. As for the car, it is a Dacia Spring 2024 - I have been to a public charger several times in the past and it was charging with higher power - see Screenshot from 2025-05-27 22-21-52.png. Please advise what else I should check. Maybe I should calibrate? Thank you.
My situation is as follows:
The house is powered by an off-grid system Studer next3 with a maximum continuous output of 15 kW. The appliances used - electric radiators, electric boiler, induction cooker, kettle, water pumps - the loads are distributed over all three phases. The original charger for EV loads one phase too much and thatās why I bought a Victron EVCS, from which I expect the load to be distributed over three phases. So far Iām not successful and I hope that with your support I will reach my goal. If not, I will have to return the EVCS to my supplier and look for another solution.
Those options for selecting the phase are for an EVCS with special HW modifications. It is not your case, as you have a standard EVCS.
Please, stop searching for what does not exist. There are no settings on your EVCS that control phases.
I measured the phases on the terminal block inside the EVCS - all 3 phases are present
Do you mean voltage? 230v present on the L1,L2,L3 inside EVCS?
Also, are you sure that the phases are not mixed? In this image, the grey and black wires appear to be connected incorrectly(Of course, Iām not sure which color used for each phase in your system).
Thank you Nikolas. In my house I have a strict installation of L1 black, L2 brown, L3 gray, N blue, PE yellow-green. I trusted the manufacturer what is written on the sticker next to the terminal block. I replaced L1 and L2 on the terminal block on my side (I never interfere with the manufacturerās wiring) - see the picture, but it still charges with only one phase, now the load in the house is on my L2.
I made two attempts today, with both versions of the phase order. I turned off all appliances in the off-grid house and allocated the entire power of the PV power plant for the EVCS charger. The potential was there, but the EVCS still uses only one phase - see the picture and delivers a maximum power of 3400W. In the settings of my EV there are no user options to interfere with the charging process. What next?
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Iāll add one more thing - I checked all the contacts on the power supply terminal block and on the contactor before the first connection and now Iāve also checked and tightened them well.
From a quick google search that car can only charge with 1-phase AC (max 7,4kW at 32A).
Optional you can order that car with a 30kW DC charger.
Please take a look into the datasheet/manual of your car.
Just google for ādacia spring charging powerā or something like that and you should find it.
And Iām sure that it is somewhere in the datasheet/manual.
Or ask your Dacia dealer.
Iām pretty sure Dacia is charging only single phase. So donāt search for complicated answers. That is the reason.
Thanks Matthias. Google is not a relevant source of information, but I didnāt find the information that āonly one phaseā anywhere (please send me the link from which you drew), I see āthree phase 6.6 kWā here - see screenshot. I know the manual for my Dacia Spring 2024 in detail, I donāt see the reason to charge with only one phase. Ok, Iāll try the manufacturer, I estimate the answer maybe in a month.
Thank you Lucian, I would greatly appreciate it if you could provide me with the source of your belief. Thanks in advance.
Thank you Lucian, how easy it was. Thank you also to Nikolas and Matthias for trying to find the cause. For me, I just want to say that I was buying my first EV, my wife drives it. When I ordered it, the seller asked me if I wanted fast charging, so I ordered it, it was a new model and no one had ever seen the car in physics. The charger supplied with the car was brutal and I often saw āoverloadā on the off-grid PV system. So I looked for a solution. There are many chargers and when I was choosing, I decided on Victron EVCS and expected load sharing. As always, faith is not enough (just like the Budapest Memorandum). I became a victim of two commercials. My mistake. I will not buy another car and/or charging station at this point. Maybe it would be good to write a list and conditions of compatibility with the product.
Thank you for your support and I wish you success.