MG4 Trophy Long Range 10,000 Mile SoH

[HazardLights]

Hi,

As I am approaching a year of ownership of my MG4 Trophy LR and have done over 10,000 miles including more 100% to 20% journeys than I had anticipated I decided to use the on board diagnostics and car scanner to check the battery State of Health. I am overdue a balance charge which may improve things but I got a reading of 99.8% SOH. As much as I should prefer to still be at 100% I think this result seems okay for a vehicle that was produced in 2023. Is this a typical result?

I mainly charge at home but DC fast charge on trips. On most weekdays I tend to do daily charges around 20% and try to stay below 70%. At weekends I find that long trips require full charges and sometimes a bit of DC fast charging. I have noticed that driving does little to warm the battery but charging especially fast charging helps raise temperature and efficiency.

Regards,
HazardLights

 

[Slipstream]

Hi,

As I am approaching a year of ownership of my MG4 Trophy LR and have done over 10,000 miles including more 100% to 20% journeys than I had anticipated I decided to use the on board diagnostics and car scanner to check the battery State of Health. I am overdue a balance charge which may improve things but I got a reading of 99.8% SOH. As much as I should prefer to still be at 100% I think this result seems okay for a vehicle that was produced in 2023. Is this a typical result?

I mainly charge at home but DC fast charge on trips. On most weekdays I tend to do daily charges around 20% and try to stay below 70%. At weekends I find that long trips require full charges and sometimes a bit of DC fast charging. I have noticed that driving does little to warm the battery but charging especially fast charging helps raise temperature and efficiency.

Regards,
HazardLights

Sounds like you've been doing everything right to me . Great result.

 

[gary333]

My car is "4 months old" 25 plate (however was made in Dec 2023) and has just ticked over 10,000 miles. I have just checked and my battery SOH is 100%.

 

[HazardLights]

Congratulations on maintaining your batteries health. For a moment I pondered a few variables such as whether harsher winter conditions or my long trip to Manchester were to blame before deciding that it's unknowable and could even be variation in quality of cells within the packs. So any attempt to sift through difficult to quantify differences would be be of little or no benefit. I wonder if these results point to a general case of slow but inevitable decline. It certainly suggests things aren't bad at all.

Out of curiosity, and if you don't mind sharing, what are your charging habits and typical journey lengths?

 

[gary333]

Congratulations on maintaining your batteries health. For a moment I pondered a few variables such as whether harsher winter conditions or my long trip to Manchester were to blame before deciding that it's unknowable and could even be variation in quality of cells within the packs. So any attempt to sift through difficult to quantify differences would be be of little or no benefit. I wonder if these results point to a general case of slow but inevitable decline. It certainly suggests things aren't bad at all.

Out of curiosity, and if you don't mind sharing, what are your charging habits and typical journey lengths?

I don't think one trip would cause any issues unless you left it at zero or 100% for a week. I wouldn't worry about your battery health, give it 6 months you never know it might not have moved.

I drive up and down the M1 (110 mile round trip) many times per week. My car is almost always charging as i only have a 2.4kW Ohme charger. I don't make much of an effort to preserve the battery however as i am doing quite a lot of miles the battery isn't really getting left at a high or very low state of charge for very long.

I am not a fan of this car and won't be taking any precautions with the battery like i did with my last Ioniq (which I tried to always keep between 20-80%) as there is no chance i will be buying it from the lease company (i wish i could give it them back). After over 4 years and 50,000 miles my Ioniq was still on 100% SOH.

 

[HazardLights]

@gary333 Thanks for the insights. I'm sorry to hear the MG4 doesn't suit you. I am very happy with mine especially with the current software sorting out the irritations of LKA. I'd like a heat pump on my next EV as winter range is more of a challenge and I have hobbies that require travel in winter.

 

[DYWLC]

I wish I could give mine back too. I'd get a KIA hybrid instead of it.

 

[Alex1985]

I am changing my Trophy for a Kia EV3, the MG was class leading at the time but not any longer. Too many software issues and poor multimedia control, after 2.5 years I still have not figured out how to work the radio! Also the trade in value is awful. I'm leasing the next car, I know exactly what it will cost over 3 years. Bliss.

 

[BingBong]

95.8% after 26k km.
64kWh.

 

[GaryMG4]

I am changing my Trophy for a Kia EV3, the MG was class leading at the time but not any longer. Too many software issues and poor multimedia control, after 2.5 years I still have not figured out how to work the radio! Also the trade in value is awful. I'm leasing the next car, I know exactly what it will cost over 3 years. Bliss.

We have a 71 plate eNiro as well as my trophy, the Kia went in recently to have the BMS wiring harness fixed and they gave us a 25 plate Niro4 which we had for a week and did 400 miles in. This had its own software quirks, odd unrelated error/warning messages, interior build quality was better than the MG but not as good as the 71 plate. Being a 4 it had lots of toys but still had a bit of a clunky interface, I think the biggest negative for it was the comfort/drive, it was a bit crashy over bumps and the torque steer unpleasant. I've not driven the EV3 so hopefully that will be better.

As for leasing, I guess you are looking at £1-2k deposit plus £350-400 a month, so not not far off the 'loss' on an MG4, the difference being you pay for the depreciation monthly where as a chunk of mine happened when I purchased it, but my car costs perhaps £500 a year to run and after 3 years I still have a car.

 

[smw]

Hi
After reading the above replies
I have a mg4 23 plate and was wondering how do I check the state of batteries condition SOH after 16000 miles covered. I’ve looked on app and car info screen but can't seem to find the information I want
Any help would be much appreciated
Steve

 

[siteguru]

My reply explaining HOW to edit a post has been deleted, because a moderator edited the above post (and also deleted @smw's post that included their edit). Supposedly that made my post redundant - however that also means @smw may still not know how to edit their own posts.

Try thinking things through, eh?

 

[Bam Bam]

I have a mg4 23 plate and was wondering how do I check the state of batteries condition SOH after 16000 miles covered. I’ve looked on app and car info screen but can't seem to find the information I want
Any help would be much appreciated

Not sure what has gone on with this thread, but to answer your question:
The MG doesn't give you a SOH reading.

To get one you need to:

• Have a service at an MG garage - they should tell you the reading.
• Plug in an ODB device to the car and get a suitable mobile app to read the information (See Bjorn Nyland's video reviews for an example of this)

I haven't done the latter, but had readings of 95% (Y1) and 94% (Y2) from the former.

 

[smw]

Thanks for the reply
I will ask at a mg dealer on my next service

 

[siteguru]

An OBD dongle (~£15 from AliExpress) and the Car Scanner app are all that is needed to find it the current SOH.

This is the one I got - it was ~£15 at the time:

Vgate iCar Pro 2S Bluetooth 5.3 OBD2-Scanner Auto SCAN ELM327 Diagnosetool OBDII-Diagnose für iOS/Android/Windows - AliExpress 34

Smarter Shopping, Better Living! Aliexpress.com

www.aliexpress.com

 

[smw]

Thanks will have a look

 

[siteguru]

BTW - you don't have to buy the Car Scanner app to be able to retrieve car data (like SOH); the free version will still do it. As it happens I opted to pay to unlock all the features anyway, as it wasn't very much money and it helps to support developers like this.

 

[HazardLights]

BTW - you don't have to buy the Car Scanner app to be able to retrieve car data (like SOH); the free version will still do it. As it happens I opted to pay to unlock all the features anyway, as it wasn't very much money and it helps to support developers like this.

I did exactly the same thing to support the developer. I have a feeling this sounds more noble than it is because it was a minimal sum

 

[Alex1985]

I did exactly the same thing to support the developer. I have a feeling this sounds more noble than it is because it was a minimal sum

Which ELM327 adaptor did you use to run Car Scanner? There seems so many.

 

[HazardLights]

Which ELM327 adaptor did you use to run Car Scanner? There seems so many.

Vgate iCar Pro 2S. The same one that siteguru linked above. I also got mine at a good price from Aliexpress although I was nervous as Aliexpress has a reputation for counterfeit goods.