S5 Battery is at 97% SOH (new)

[minomis]

Long story short, received a new S5 drove 1000kms and charged from 20 to 100% a few times to calibrate, now at 2000kms, 1 month old. Battery is at 97.22% max capacity (SOH). Measured within optimal environment.

Kinda disappointed, yes I know about the curve during the first 1-2 years but this still seems like a lot for a single month.

Anyone else experienced similar?

Note: app being used is Car Scanner as they have an MGS5 profile.
This image was 10 days ago, so it has lost about 0.30 since taken and yes when I do measure it is at 100% SOC, this was just the first image I could find:

 

[JohnV6]

State of charge or do you mean state of health?
i use car scanner and often the soc is lower than the car shows.

My ZS EV is now 1 year old and done 7k miles. The SOH is 100%. It is mainly home charged

 

[minomis]

State of charge or do you mean state of health?
i use car scanner and often the soc is lower than the car shows.

My ZS EV is now 1 year old and done 7k miles. The SOH is 100%. It is mainly home charged

Ahh apologies! Yes, you are right I meant SOH - thread has been edited now to reflect this. The ZS EV I assume is NMC?

Mine is a S5 Essence 62 model - which is LFP here, I assume this may be the reason why but it seems like a big drop when compared to yours.

 

[JohnV6]

Yes NMC. My home pv batteries are Lithium Iron Phosphate (LiFePO4) and they are at 93% after 4 1/2 years. So your drop seems excessive to me

 

[Bam Bam]

Ahh apologies! Yes, you are right I meant SOH - thread has been edited now to reflect this. The ZS EV I assume is NMC?

Mine is a S5 Essence 62 model - which is LFP here, I assume this may be the reason why but it seems like a big drop when compared to yours.

Oh, if it is LFP I wouldn't worry at all. As you mentioned they drop off quicker initially but then even out a lot more.

It drops more quickly both because LFP does that but also because there is minimal upper buffer (which masks the initial degradation in NMC batteries).

I think ours was down to 94% after the first year, but 93% the year after.

 

[Alb]

Seems like an excessive drop for one month.
Last checked mine in November (car 5 months old) and it was 100%.

 

[Everest]

1 month old. Battery is at 97.22% max capacity (SOH).

this still seems like a lot for a single month.

So your drop seems excessive to me

Seems like an excessive drop for one month.

Lots of talk of "drop" here. Do we know it has dropped? Was the vehicle measured at 100% when it had 0km on it. i.e. may not be a drop, just the natural variance of original capacity combined with a small drop?

As @Bam Bam said, it's a non-issue for LFP. Not only does LFP have 3000+ cycle life before 80% SOH is reached (which will be over 500,000 miles), it is inherently difficult to calculate SOH due to flat voltage curve. We also don't know what data CarScanner is extracting from the BMS to display SOH, nor do we know what algorithms SAIC have to represent SOH within their BMS.