Granny charging variability

[TimothyN]

I am sitting in the car during granny charging for the first time and witnessing that the charge rate varies between 2.7kW and zero (though more typically 0.3kW) on about a 30 second cycle.

I have a video if anyone would like to see it.

Is that normal?

 

[TimothyN]

I locked and unlocked the car and it's steady at 2.7kW now.

 

[salty]

To be honest, I've know idea what my Granny Charger does. I just know it charges the car. That's all I need to know.

 

[Everest]

Might be plucking at straws here, but could it be that when you were in the vehicle the HVAC was turning on and off, and hence using much of the power?

 

[EvTek23]

If its like the MG4 which it is heavily based on, when it charges from an AC supply the car has to be locked during the charge process. It may not go into full charge mode or keep on aborting when you are seated in the car as it now in partial ready mode with the HV battery connected. The HV battery is disconnected from the car while charging.
If you lock and unlock the car but are not seated in the car it is not in the ready mode. So will go into the charge mode. Unlocking the car during charging causes it to pause or abort as it says on the display but resume on relocking.
DC or fast charging is different as you turn the car off which disconnects the HV battery and can therefore sit in the car.