What is referred to by phase 1 and phase2? are Phase 1 models the early ones?
My understanding is that when charging with DC the on-board charger is not involved, which is only concerned with AC charging. Mine is fine on DC other than the impact on my wallet
Phase 1 are Model Year (MY) 22 - i.e. those built to the 2022 specification. Phase 2 are MY23 cars, those built to the 2023 specification which includes (amongst other things) the rear wiper.
It may be the Zappi it will have a CT clamp on your supply and will power down if the total amps you are using gets too high, so as not to overload your supply.For those members who charge their MG4s with a Zappi, has this ever happened to you? The first time it happened was on Sunday. I’d set the car to charge to 80% from something like 45% and let it do its thing. Around the time I expected it to have finished I checked the Zappi app and found it had finished earlier than expected. It had actually stopped charging at 74%. I thought that was odd and then started the Zappi again to finish the charge to 80%, but again it stopped at 76%. Okay, this is not normal. A third attempt got the car charging and balancing to 80%.
I plugged it in this evening to charge the car from 67% to 80% and the Zappi stopped at 78%. The second attempt got it charging and balancing to 80%. I’ve updated the Zappi firmware, just in case that’s the issue, but I’m perplexed as to what could be the cause of this. Any ideas guys? Could it be the car, or is there something I’m not doing correctly? Any help is appreciated. I haven’t had any problems in the last seven months of charging until last Sunday.
Also, a Zappi might be set up to not use more power than excess solar. But I think it has some way of indicating that this is the case, on its display.
I can't imagine any dealers reimbursing any charging costs. I'll settle for a fix in a few months.
If you are taking it in anyway, make sure you have tried it on several AC chargers first (they will ask you to do that), also ask them to test on their charger but not just for a few percent - ideally an overnight charge or at least 30% to reproduce.
I have access to a number of chargers at work so will test on those before I take it in. Mine is a lease car - if they can't fix they can take the thing back !
Yes, understood, it is really about the speed of the fix - the above should speed up the process but if you do need a new onboard charger there are rumours of parts delays.
Understood, but they are contracted to provide me a fit-for-purpose car
I did suspect there was a parts delay behind the multiple software "fixes". IMO they would be better off admitting that so at least we have the promise of a replacement a few months down the line. By the looks of things we're picking up new instances of this on this thread quite regularly now and I'm assuming not everyone with an MG4 with this problem has found their way to this forum, so looks like it could become a bigger issue for MG.
This is exactly what my charging graph looked like before my car went in. Touch wood, I've still had no issues since my dealer performed all possible updates they could. And the charge graph is a pin straight line now. I'm starting to think that there might be two issues happening, a hardware issue, and a software issue.
Luckily, we’re all still able to use our cars with DC rapid charging. I may be the first to experience this issue at my dealership, but I doubt I’ll be the last. Anyway, I’m glad we have this forum to compare notes and offer advice to one another.
The only way it would be a possible SW issue is if it was paired with environmental conditions, like multiple charging sessions in cold conditions not being calibrated properly or leading to a poor hardware response.
