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.

 

[Ruislip Resident]

Anybody have a suggestion for a good granny charger. The S5 I have ordered comes with a type 2 (which I already have one of). The dealer does not even have any grannys available to thow in. The ZSEV I am returning at the end of the PCP has one, but If I keep it, no doubt Santander will charge me for it. Nb I use the granny to charge when visiting my folks and at some holiday rentals. I always leave money for my folks for this and get pemission at tbe holiday rentals with an agreed cost (if they want anything).

 

[salty]

Very much doubt Santander would even notice, there was no granny charger.
But if you don't want to risk it, this is the one I got, from Amazon, it's been great.

 

[TimothyN]

I'm very happy with

https://amzn.eu/d/6pEE6fa

It goes to a true 2.7kW consistently, so may be a few percentage points better than the one Salty suggests, at the same price.

 

[MG Clive]

Anybody have a suggestion for a good granny charger. The S5 I have ordered comes with a type 2 (which I already have one of). The dealer does not even have any grannys available to thow in. The ZSEV I am returning at the end of the PCP has one, but If I keep it, no doubt Santander will charge me for it. Nb I use the granny to charge when visiting my folks and at some holiday rentals. I always leave money for my folks for this and get pemission at tbe holiday rentals with an agreed cost (if they want anything).

There are plenty of chargers available, but it's probably safest to stick with the genuine MG one > MG Granny Charger.

 

[salty]

There are plenty of chargers available, but it's probably safest to stick with the genuine MG one > MG Granny Charger.

That Is cheap for a genuine MG granny charger. I got the one from Amazon coz the supplied Granny charger wasn't long enough 4m for my needs. So got a 6m one from Amazon and it's been fine.
Personally don't think a genuine MG one
would be any safer, than a good aftermarket one.

 

[TimothyN]

Salty, what was the logic of going for one limited to 10A when 13A is available?

I have charged many nights at 13A/2.7kW and had no problems whatsoever, no heating of components, no cut-outs, and going 30% slower would be a pain.