25/01/21: Just had latest BMS software. Observations...

[JodyS21]

Definitely, but there is a cost to be paid. Need 4G minimum I would suggest, a data contract and a modem amongst other hardware! The car could then come with an app!!!!

Hmm, the exact thing that everyone wants from the car.! I’d happily pay £500 more for an app, I would hazard a guess most owners would....
MG take note!

 

[Gomev]

No, they all show the mode picture for a few seconds whenever you change mode. Well, apart from yours, it would seem!

and mine

 

[Srp111]

Mine doesn't show it either, just changes the letters

 

[Cocijo]

Ditto

 

[MAS]

First full charge and equalisation after BMS update on 25/01/2021 gave me 449 V. Equalisation took more than 2 hrs (overnight), from 92% battery to 100%+ equalisation took 6KWH. Range with HVAC off, E mode - 174, N mode- 158, S mode-150.

 

[JodyS21]

Just spoke to dealer I’m getting my car from tomorrow.
I’m not sure how accurate this information is but I’ll put it out there anyway!

Said my car came from the factory with the HV Fuse repair and drivers door wiring already done, good.
The technician has applied all of the updates the system says it needs, including the bms released 15/1/2021. But he said...they select the updates to apply - they only select the ones the system tells them are needed but there are others they could potentially choose too.

Really don’t know how accurate this is. I guess it explains why for instance some have fancy car graphics on their dash and others just writing.
But it does seem a bit ridiculous, why you wouldn’t just always bring everything up to date, it makes every car completely different which is a crazy situation to be in.

 

[Cocijo]

Yes - and of course there is always the risk of different variations throwing up yet more issues. I would need to know a bit more but it does seem strange that they don’t just adopt a standard version that all cars get with no variations.

 

[Kithmo]

Mine doesn't show it either, just changes the letters

Mine does.

 

[Mark Holmes]

Just spoke to dealer I’m getting my car from tomorrow.
I’m not sure how accurate this information is but I’ll put it out there anyway!

Said my car came from the factory with the HV Fuse repair and drivers door wiring already done, good.
The technician has applied all of the updates the system says it needs, including the bms released 15/1/2021. But he said...they select the updates to apply - they only select the ones the system tells them are needed but there are others they could potentially choose too.

Really don’t know how accurate this is. I guess it explains why for instance some have fancy car graphics on their dash and others just writing.
But it does seem a bit ridiculous, why you wouldn’t just always bring everything up to date, it makes every car completely different which is a crazy situation to be in.

Mine had the so called fancy graphics from the start, that was standard on all.

 

[Lovemyev]

Just spoke to dealer I’m getting my car from tomorrow.
I’m not sure how accurate this information is but I’ll put it out there anyway!

Said my car came from the factory with the HV Fuse repair and drivers door wiring already done, good.
The technician has applied all of the updates the system says it needs, including the bms released 15/1/2021. But he said...they select the updates to apply - they only select the ones the system tells them are needed but there are others they could potentially choose too.

Really don’t know how accurate this is. I guess it explains why for instance some have fancy car graphics on their dash and others just writing.
But it does seem a bit ridiculous, why you wouldn’t just always bring everything up to date, it makes every car completely different which is a crazy situation to be in.

I think generally the update packages are all of the same size.
I think where the problem lies, is how and be who applies them !.
Different modules have different packages that need applying to different modules.
I believe it’s a tick box exercise.
If it already had a green tick in the box, then pass it by.
This is how stuff is missed and would account and therefore how we have all have different information loaded to our cars !.
Having non standardised software running on different cars is both crazy and hard to deal with.

 

[Jeps]

Now after Brexit, you Brit's can maybe get car's with the Asian App version control built-ln?

 

[RossN]

We will be lucky to have a horse and cart in a few yrs time because of Brexit (WARNING....POLITICS !!! )

 

[Kithmo]

We will be lucky to have a horse and cart in a few yrs time because of Brexit (WARNING....POLITICS !!! )

Only because of the SNP rejecting it.

 

[Lovemyev]

First full charge and equalisation after BMS update on 25/01/2021 gave me 449 V. Equalisation took more than 2 hrs (overnight), from 92% battery to 100%+ equalisation took 6KWH. Range with HVAC off, E mode - 174, N mode- 158, S mode-150.

I am completely baffled by how my car is behaving with regards to it's charging patterns ?.
On Saturday at 11.30am, I plugged in the car to carry out it's first home charge / balance.
It had 92 miles of range remaining on the GOM before starting.
It took 5 hours to get to 100% and it was only pulling just under 4.0kw from my wall box.
At 10.00pm it finally completed the balancing process.
Almost 11.00 hours to complete !.
It resulted in 154 miles of range and 449 volts on the pack.
I used the car briefly on Sunday and then started the second home charge / balance.
On Sunday, I commenced the second home charge / balance.
It had 91 miles on the GOM and 62% when plugging in.
When the charge started at 1.00pm, it was pulling the full 7.0kw from the wall box.
By 3.00pm it had reached 139 miles of range and reporting 97% with 30 mins left to complete.
At the thirty minute mark it started to throttle back the charge to 3.190 kw ( which I would expect ).
The car reported 100% charge complete at 3.30pm which matches the charge rate and time scale.
It then commenced the balancing process, which took 4 hours.
This morning ( Monday ) the car reported 143 miles of range in normal mode with 449 volts on the pack.
Then a short trip of 43 miles and we returned with a remaining range of 101 miles left on the GOM.
The car performed just fine and the consumption for that short trip was 3.4 miles/kwh.
Therefore the miles covered matched the miles consumed pretty much spot on !.
I have returned home and placed the car back on a charge / balance again.
My energy meter is now saying the car is now only pulling just under 4.0 kw again and therefore the charge time is going to be lengthy ?.
Does anybody have any idea why the car could be requesting different demands for power from the wall box on different days ??????.
Saturday it was asking for 4.0 kw - Then Sunday the full 7.0kw - Today ( Monday ) back to 4.0kw.
As you can see from the above figures, the SOC was very close at the start of each charge so this can not be an issue.
In my mind, the car should accept 7.0kw each time the car is plugged in, unless the SOC is very high, it which case you would not be pulling in anyway.
You would consider it be normal for it to start throttling back to 3.6 kw (ish) at around 97% SOC towards the end to the charge, but not before.
When the charge is completed, it should then only be pulling about 500 watts to finally balance the pack.
I have unplugged the car and will try again latter just in case it is a battery temperature thing, which I am pretty sure it is not.
This one has me totally beaten folks, I have no explanation for it's behaviour.
Any ideas on this matter will be gladly received.

 

[Smendon]

In my mind, the car should accept 7.0kw every time

FYI, I sure it was established that the can can take a max of something like 6.6kw on a 7kw charger.
Regarding the rest of the issues with charging, no idea.

 

[Mark Holmes]

Hi there,
Firstly the positive thing appears that the range is beginning to increase, that’s a positive!
In relation to the charging, was the temperature on Saturday and Monday similar, was it warmer on Sunday where you live as a cold battery will affect the charging rate, the same as it does on rapid chargers, also it throttles back at about 80% and therefore the percentage of charge remaining in the battery may also affect the charging speed.

 

[Mark Holmes]

FYI, I sure it was established that the can can take a max of something like 6.6kw on a 7kw charger.
Regarding the rest of the issues with charging, no idea.

Yes that’s correct that’s the maximum the battery can draw in ideal conditions, percentage of battery to charge, warmth of the battery and external temperatures. The ideal temperature for EV batteries for performance both charging and driving is 20 degrees.

 

[Lovemyev]

Hi there,
Firstly the positive thing appears that the range is beginning to increase, that’s a positive!
In relation to the charging, was the temperature on Saturday and Monday similar, was it warmer on Sunday where you live as a cold battery will affect the charging rate, the same as it does on rapid chargers, also it throttles back at about 80% and therefore the percentage of charge remaining in the battery may also affect the charging speed.

On Sunday it was cold just above 0 degrees and windy, today ( Monday ) is chilly but sunny, the car was reporting 3.0 degrees, so kinder weather then.

 

[Lovemyev]

You know when you get that feeling that something is just not right, but you can not put your finger directly on it !.
Gut feeling is the best way to describe it I guess.
The car drives as it did before, but the charging pattern feels out of wack somehow ????.

 

[Mark Holmes]

On Sunday it was cold just above 0 degrees and windy, today ( Monday ) is chilly but sunny, the car was reporting 3.0 degrees, so kinder weather then.

It will make a difference as I’ve learnt this winter as I bought mine in March 20 and can clearly see the difference in the low temperatures, mine seems to wake up at about 6-7 degrees or above.
That said it would be good to hear if others have similar experiences.