MG4 51 kWh charging speed on 3 phase system and on solar panels

[unbornidentity]

Perhaps you misunderstand ... my car takes 6.4kW charge rate (per the charging I did Friday evening and overnight); my EVSE (wall box) delivers 7.2kW for the car to take 6.4kW of it. (So approx. 89-90% efficiency, per the app numbers). 6.4kW is within the 6.6kW rating of the car's onboard charger.

I’m not misunderstanding you. Mine doesn’t. I’ve never seen my EVSE go over 6.6 with my car and the car says it’s charging at about 5.8kW

 

[MickeySw]

I’m not misunderstanding you. Mine doesn’t. I’ve never seen my EVSE go over 6.6 with my car and the car says it’s charging at about 5.8kW

There is usually a setting inside the EVSE to limit charge current (smart ones should do that via the app).

Yours doesn’t seem to be at max, maybe intentionally if your wiring can’t safely support 32A continuously.

 

[Razvan]

Get a smart, 3Phase EVSE that will reduce the charge to your car when using heavy appliances in your house

Which model exactly and where from to take this? Maybe it is available also in Romanian market.
Thanks

 

[unbornidentity]

There is usually a setting inside the EVSE to limit charge current (smart ones should do that via the app).

Yours doesn’t seem to be at max, maybe intentionally if your wiring can’t safely support 32A continuously.

Nope that’s all the car is taking. I had a Cupra Born before and that would draw 7.4kW

 

[MickeySw]

Which model exactly and where from to take this? Maybe it is available also in Romanian market.
Thanks

Look for something with dynamic load balancing. If you really what to go down the road of PV charging then people usually get a Zappi EVSE, they do a 3phase version also

 

[MickeySw]

Nope that’s all the car is taking. I had a Cupra Born before and that would draw 7.4kW

Ok, have you a tethered cable or do you use the one that came with the car?

 

[unbornidentity]

Ok, have you a tethered cable or do you use the one that came with the car?

Tethered. I’m not worried about it though. Even the Ohme app says max AC charging 6.7kW with my car selected and that’s basically what it draws.

Thinking about if it can go 7.4kW but the charger thinks it can only take 6.7kW that would explain it.

 

[MickeySw]

Tethered. I’m not worried about it though. Even the Ohme app says max AC charging 6.7kW with my car selected and that’s basically what it draws.

Assuming Ohme ‘said’ 7.4kW for the Cupra, then it seems your EVSE is limiting the current based on profile?

 

[unbornidentity]

Assuming Ohme ‘said’ 7.4kWh for the Cupra, then it seems your EVSE is limiting the current based on profile?

Yeah looks like it. They get the data for the cars from the EV-database.org and it states 6.6 on there. Will set it as a different car at some point and see what happens but I don’t mind it being a bit slower. Means I get longer cheap rate slots when it schedules outside of the normal cheap rate ?

 

[icevtec]

If I forget to change the Car profile on my Ohme from our other car to the MG4 - it does show 7.2kW on the Ohme, if I do - it drops to 6.6kW.
The car takes both without complaining .., perhaps due to the losses ..

But theoretically speaking - it should not go over its own limits, correct?

Thanks

 

[siteguru]

As I recall this is a fault with the Ohme app ... it knows the rating of the onboard charger in each car but for some reason sets the output of the Ohme charge point to that rating. That means, after losses, you'll always get way less than 6.6kWh into the car with the MG4 profile.

 

[Tuareg]

Which model exactly and where from to take this? Maybe it is available also in Romanian market.
Thanks

You should be able go get a WallBox/WallBox Plus in Romania. I have the WallBox Plus in Cyprus, 22KW and it regularly charges at 7.0KW unless other appliances are running such as my swimming pool pump/air condtiining etc, then the dynamic load balancing feature (an extra to the standard system) will reduce the supply to the car to something like 5-6KW depending on wwhich appliance(s) are running. Works 100% reliably since I had it installed a few months ago. I installed the 22KW version instead of the 11KW version for future use if any new car requires it. I have a 3 phase system in my house.