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Thanks for putting up with the discomfort, "for science". I leave my phone in my shirt pocket, and I'm used to it being there all the time. All shirts without a pocket, or a pocket that is too small, are never worn. A few shirts have had the pocket extended or trimmed.

Can you leave your phone in your pocket, or does the phone have to be near the device for good reliability?

In my last job, I spent a lot of time looking at the mains at a university. It was horrible, far from a sine wave. Clipped peaks, third harmonic distortion, and just lumpy. It's not unusual to see the peaks flattened; that's because of a bunch of cheap and nasty power supplies (e.g. in PCs, if...

I thought I read somewhere that you typically get slower charging speeds from V4 superchargers. Something to do with the back end equipment not being V4 yet, but that makes no sense to me. Has anyone noticed this? Or the lack thereof? The V4 superchargers are the "unholey" ones.

It' not an obvious thing to most owners that the car has to be in ready mode but neutral gear (if I'm right and you do indeed need to be in ready mode to select neutral). I think that's because of the permanent magnet motor, which will generate voltage when the drive wheels are turning, and even...

At a guess, it would be a pure sine wave. You have filers and electronics there for drawing a pure sine wave of current for the Power Factor Correction stage, so making a pure sine wave for output should not be too hard.

I think that may be because in an off-grid home energy system, you typically have the ability to charge the battery all day. When you charge LFP to full, they are at something near 3.5 or 3.6 Volts Per Cell, and keeping them at this high voltage is not a good idea. But with an EV, after...

It's quite possible that VN stands for Vin Number, and is generated and/or modified as part of the update process. So copying someone else's VN.txt file might not be a good idea. Then again, if you are somehow sure that you have the right download for your VIN, it might be possible to use a...

I'd be interested in looking at it. You might have to upload it to Google Drive or similar; I imagine the files are too large for an attachment. I'd caution anyone about attempting this themselves; it might be tricky to make absolutely sure that the files are the right ones for your exact model.

Oh. That does sound like it's motor or motor controller related. It might be the onset of field weakening, though I thought that typically came on at very roughly 60 km/h (under 40 mph). The MG4, being built from the ground up, might have a different motor to earlier models. If that's the...

Thanks for the alert. I've moved it to the MG4 forum. Edit: @Chris Bronsdon, you may care to compare your high pitched whine to the vibration reported by some MG4 XPower owners. It's possible that both issues are due to the tyres developing a flat spot from standing still in transport from...

Wow, after 10 years! It seems that the Coda came with an AGM auxiliary battery as standard, which seem to be better able to handle this sort of neglect.

Does the eZS app work to turn off MG4 daylight running lights?

Yes, I do get that occasionally too. It does a heroic effort to find that sign in its peripheral vision! 😦

Perhaps try disconnecting the 12V battery for a few minutes (some say 10 minutes). But it sounds to me that your car has a nasty intermittent fault in the high voltage system somewhere, and it's going to take some clever diagnosis to find it. I've not heard of anything like it, but that...

Ah. We're not so sophisticated Down Under. We just have fixed speed limits.

I get 74.4%. But I assume and hope that the -0.01% per day is just an interim measure for display purposes, but the actual SoH is calculated more slowly, perhaps at 3/6/12 monthly intervals, when large adjustments are possible, either up or down. That seems to be how it's done in the Nissan...

Oh. For me, it's right 98% of the time, and is rally useful.

I had this on my ZS EV. It turned out to be a warning that the speed limit had changed. There may be a related setting. Now that I know what it means, I find it useful and it doesn't bother me.

Yes, but you can't extrapolate anything useful from that because of MG's sleight of hand. They adjust the State of Health (SoH) to be something over 100% when new; call it 102% for argument's sake. But any SoH over 100% they report as 100%. So in the first 10 months or so, when the degradation...