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.