V2L- to granny charge another EV?

[GaryMG4]

Anyone got this working? I've tried the MG one and the Kia one, to see if I can charge the e-Niro from the MG4. Even if I set the Kia to 6A it starts then stops quickly, at 10A it doesn't start at all and neither does the MG one.

 

[Tight Git]

Will your V2L adapter work okay on the MG4 to boil a kettle (or some other appliance)?

 

[GaryMG4]

Will your V2L adapter work okay on the MG4 to boil a kettle (or some other appliance)?

I've not tried it for a while but it did run a vacuum cleaner ok, I'll give it another try.

 

[siteguru]

Sometimes it can be the high inrush current when starting to charge (the other EV) that can trip the V2L source.

 

[Everest]

Or IMHO, more could well be an issue with earthing checks being made by the vehicle being charged - i.e. if there is no N-E bonding on the V2L output that could cause a "no-earth" condition being detected. Does the e-Niro report the reason for failure anywhere?

 

[GaryMG4]

The adaptor still works ok with the vac, although that is only 800W. I'll have to get the other half to sit in the e-Niro to see if any messages come up, it all happens very quickly.

 

[ReintjeWA]

I’ve tried charging an electric side-by-side from the V2L and it cannot be done. The ground pin on the MG4 floats, and the charger will throw up a fault because it needs a solid ground to work safely. I tried the MG supplied granny, and the charger supplied with the sxs.

I know some EVs can charge other EVs from their V2L, but the MG4 is definitely not one of them.

 

[GaryMG4]

I’ve tried charging an electric side-by-side from the V2L and it cannot be done. The ground pin on the MG4 floats, and the charger will throw up a fault because it needs a solid ground to work safely. I tried the MG supplied granny, and the charger supplied with the sxs.

I know some EVs can charge other EVs from their V2L, but the MG4 is definitely not one of them.

Thanks for that, I thought I had seen it demonstrated, although not an MG4.

 

[Barrie]

MG4 to MG4 works and my MG Marvel can charge other MG EV's.

 

[GaryMG4]

MG4 to MG4 works and my MG Marvel can charge other MG EV's.

Interesting, what EVSE are you able to do this with?

 

[Barrie]

This one.

 

[ReintjeWA]

MG4 to MG4 works and my MG Marvel can charge other MG EV's.

Which V2L adapter do you use? I’ve got the OEM MG V2L and that won’t let me charge another EV.

 

[Barrie]

This one

 

[MickeySw]

Tried to charge a 2011 I-Miev using our MG5’s V2L, it worked…

 

[ReintjeWA]

Hmm… maybe it is related to the draw then? I’m sure the fault code (number of light flashes) indicates it was an earthing fault in my case, surely a different V2L adapter wouldn’t be able to change how the car handles earth?

 

[Everest]

Hmm… maybe it is related to the draw then?

Why do you say that?

 

[ReintjeWA]

Why do you say that?

Because I don’t know what I’m talking about haha

A higher kW rating has nothing to do with a floating earth, right? So I’m just a little puzzled why some cars seems to be able to charge another EV but some (like mine) seem unable to the same. So maybe the earth connection (or lack thereof) isn’t the issue?

 

[Everest]

LOL. I suspect - thought it's only a guess - is that whether it works or not is largely dependent on what earth checks are made by the vehicle being charged.

If it were an overload issue, the supplying vehicle would typically cut off the supply; hopefully with a meaningful error message on the infotainment system. Or if there is no message in the donor vehicle then surely lack of any lights etc. on the granny charger would indicate that it is no longer powered.

 

[GaryMG4]

Or if there is no message in the donor vehicle then surely lack of any lights etc. on the granny charger would indicate that it is no longer powered.

Certainly the case with the Kia EVSE, it powers up ok, allows you to select a charge rate but even at 6A it lights up charging then stops within 15 seconds. The MG EVSE doesn't have an option to lower the charge rate, it just doesn't even light up.

 

[Bam Bam]

Anyone got this working? I've tried the MG one and the Kia one, to see if I can charge the e-Niro from the MG4. Even if I set the Kia to 6A it starts then stops quickly, at 10A it doesn't start at all and neither does the MG one.

Why do you need to set anything in the Kia if it is the recipient? Doesn't it just accept whatever is sent its way?