Battery health after 1 year?

[Rolfe]

The battery for the Tesla model 2 sounds incredible if the stats are true. Same manufacturer as the MG4 battery, CATL, but new LFP technology that can charge at over 300 kW and isn’t affected negatively by low temperatures. That’s probably one of the main drawbacks of buying an EV now. Not battery life but the technology moving on so fast that any new car you buy is obsolete in a short period.

I think that's another advantate of going for a relatively cheap car at the moment. We can't just sit in an ICE car until EV technology matures, that would be like deciding not to get a Model T but to keep your horse and cart until the Fiesta is available. But not splashing out on something really high-end limits your exposure a bit.

 

[Barbette]

Do you have the right car in your profile? R46 is a Trophy update, not an SE one.

I've corrected it now. - I think when I set the profile up, there was a single option for the MG4. Was it split into multiple options with the default being SE SR?

@Barbette which dealer was that? Paul Rigby MG Redditch?

Yes. I'm reasonably satisfied with them, but I'm quite low maintenance and tend not to complain. - For instance, I've lived for 12 months without the ability to turn on the AC/heating remotely. With the software upgrade I now can - but winter is over and I don't need to defrost the car for another 6 months.

 

[Rolfe]

Yes, I think that's what happened, and people were default allocated the SE SR when it was split.

 

[stevegus]

Had my car serviced at glyn hopkin bedford. No battery report. Emailed them and got ignored.

They seem keen to sell BS extras like taking wheels off for cleaning at a mere 60 quid even after charging 198 for a first service

Do not recommend

 

[LeeP]

Had my car serviced at glyn hopkin bedford. No battery report. Emailed them and got ignored.

They seem keen to sell BS extras like taking wheels off for cleaning at a mere 60 quid even after charging 198 for a first service

Do not recommend

I had a similar experience at the Milton Keynes branch

 

[Rolfe]

I asked about mine when I picked the car up. The girl said, did you ask for it to be done? I said no, I didn't particularly care, but I thought it was part of the service. Also that there were bragging rights involved. Then she shuffled through the paperwork and found it, 100%.

 

[Martinonline]

My Trophy had its first service a couple of weeks ago as part of its 3-year MG plan. After the service the garage supplied me with a small folder with 2 check sheets; a general one for both ICE and Electric Vehicles and one called a 'MG4 EV Maintenance Check Sheet' which lists the service type 'A' (1,3,5,7 years) and 'B' (2,4,6 years). This sheet recorded the Battery SOH. See photo below.

 

[rabacon001]

Owned the car for 1yr and 4mths, have driven 31,000 miles, combination of home (100%) and rapid (80%) charging, SOH at second service 99.8%

 

[SteveO]

Check the warranty docs ... the permitted SoH up to 7 years is 70%. If the SoH falls below that within the warranty period then the battery pack will be repaired or replaced as necessary.

Maybe check the docs for what SoH they will repair or replace to IME it isn't 100%

 

[Macadoodle]

Then she shuffled through the paperwork and found it, 100%.

Which I would imagine is total nonsense. LFP cells tend to lose a chunk early on then settle to a very slow degradation curve probably half as steep as NMC by all accounts.

I did an absolute zero to 100% charge on my Dec 22 19k mile SE standard range a couple of weeks ago and it took a little over 53 kWh before shutting off.
Charger losses seem to be around 8 % so that would suggest 49 ish kWh total usable capacity, although the car was still rolling at zero.

I think I've DC charged a total of 3 times and even then the peak input was 48 kW, usually it just gets a 20 amp tickle overnight - less than 5 kW.

I don't hammer the car save for the odd spirted overtake, and I tend to keep the SOC between 10 and 90 %. I don't let it sit at 100% for long when I do balance charge it.

So the battery leads a charmed life and it's still down around 1.5 kWh. Hoping the next 1.5 kWh will be after many years though, probably after I've moved on

 

[Rolfe]

Which I would imagine is total nonsense. LFP cells tend to lose a chunk early on then settle to a very slow degradation curve probably half as steep as NMC by all accounts.

I did an absolute zero to 100% charge on my Dec 22 19k mile SE standard range a couple of weeks ago and it took a little over 53 kWh before shutting off.
Charger losses seem to be around 8 % so that would suggest 49 ish kWh total usable capacity, although the car was still rolling at zero.

I think I've DC charged a total of 3 times and even then the peak input was 48 kW, usually it just gets a 20 amp tickle overnight - less than 5 kW.

I don't hammer the car save for the odd spirted overtake, and I tend to keep the SOC between 10 and 90 %. I don't let it sit at 100% for long when I do balance charge it.

So the battery leads a charmed life and it's still down around 1.5 kWh. Hoping the next 1.5 kWh will be after many years though, probably after I've moved on

Well, I did wonder. But several other people have said similar things. It's possible several dealers aren't bothering to check and report on this properly.

 

[IanMK]

I had a similar experience at the Milton Keynes branch

Me too
It was just recorded on the checklist as ‘OK’.