🔋 Baseline for HV Battery SoH Performance (Battery Degradation Data by Taycan Owners)

[Bognar67]

Has anybody found any good description on what the different data mean?? I tried today to check my SoH again but found this page

The two yellow markers show 2 different SoH. I guess the one with the 8C. BMS is the one to check?

And what are the two red ones, Energy Turnover total? If that shows the total in the car it would mean my car should have rolled nearly 200k km’s??

I also do not understand the 2 values about HV SoC.
I am aware of that you easily can configure the values you would like to see on the screen, but this was one that came up as standard for me.

If anybody has a screenshot of useful inf, it would be helpful to set it up . Thanks

https://www.taycanforum.com/forum/threads/baseline-for-hv-battery-soh-performance.12815/post-214961

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[rs38]

https://www.bild.de/auto/tests/test...kku-nach-100000-kilometern-83081072.bild.html

please try it with the translator of you choice...

They did a final check of the battery with a technical testing and audit company called DEKRA, similar to better known TÜV and they claim the battery after 2.5 years, 100.000km driving and a lot of DC charging is at 100% SoH with a secret and supposed to be patented 15 Minute check via OBD and a single accelleration.
Spoke to many experts of battery that do not agree with this (guessed) procedure. They can measure kind of voltage drop, maybe internal resistance, but that would not lead to results more precise like "Good vs. bad"....

 

[ciaranob]

https://www.bild.de/auto/tests/test...kku-nach-100000-kilometern-83081072.bild.html

please try it with the translator of you choice...

They did a final check of the battery with a technical testing and audit company called DEKRA, similar to better known TÜV and they claim the battery after 2.5 years, 100.000km driving and a lot of DC charging is at 100% SoH with a secret and supposed to be patented 15 Minute check via OBD and a single accelleration.
Spoke to many experts of battery that do not agree with this (guessed) procedure. They can measure kind of voltage drop, maybe internal resistance, but that would not lead to results more precise like "Good vs. bad"....

This does seem to be entirely inconsistent with the varied OBD results we’ve seen here and elsewhere - are you considering getting this test done? Would be curious to learn more as to how their results are actually determined vs std OBD tool output!

 

[lcarron]

https://www.taycanforum.com/forum/threads/baseline-for-hv-battery-soh-performance.12815/post-214961

The data and some indicators on the dashboard are wrong. You should find the plan in the App how to reset to dashboard. At least you will see only one SoH.

 

[ron_b]

Well I received my 2020 4S in Nov 2020 with 21 miles on the odometer.
I have tracked all 708 charging sessions since pickup. ?

1) Delivery Soh - unknown
2) Current SoH 90.55%
3) 53,285 miles
4) DCFC 13,102 kWh
L2 6,683 kWh
5) Build date July 2020

Avg efficiency 341 Wh/mi by calculation not cars fictitious reporting.

Location SF Bay Area, moderate climate

Story of Stealth, for anyone interested:
https://www.taycanforum.com/forum/threads/please-welcome-stealth.3531/

 

[ciaranob]

Well I received my 2020 4S in Nov 2020 with 21 miles on the odometer.
I have tracked all 708 charging sessions since pickup. ?

1) Delivery Soh - unknown
2) Current SoH 90.55%
3) 53,285 miles
4) DCFC 13,102 kWh
L2 6,683 kWh
5) Build date July 2020

Avg efficiency 341 Wh/mi by calculation not cars fictitious reporting.

Location SF Bay Area, moderate climate

Story of Stealth, for anyone interested:
https://www.taycanforum.com/forum/threads/please-welcome-stealth.3531/

Great stuff - will load shortly!

 

[ciaranob]

Note again - all edits and additions can be viewed in Post #1.

Added ron_b's data which is excellent and updated the charts with slightly revised terminology for climate zones (prior Warm now Moderate and prior Moderate now Cool).

There will of course be some significant variation in average temps within these climate zones so should not be a surprise to see some results overlap between zones - ron_b's longer term monitoring could alternately be interpreted as a positive trend i.e. my 'pseudo' data points to extend the curves of current data long term are intentionally pessimistic and ron_b's data pt. might support that!

 

[WasserGKuehlt]

1) unknown
2) 95.5%
3) 5100 mi
4) unknown
5) 11/2022

Location: cool (Seattle-ish). In the 10 weeks I've had the car, only a handful of the 126 trips were above 10*C.

# times charged to 100%: quite a few times, 10-12? About once a week, prior to going up in the mountains. All but one of these on L2 at home.

how often charge dropped below 20 or 10%: never!

Clarification on #4 above: MyPorsche does not show _any_ transactions under my account. I'd say about 12 total DC charging sessions, corresponding to ~2200mi. So far I haven't found this data in the CarScanner app, will keep looking. Roughly counting from the trip log, it comes to about ~800kWh (upper limit).

 

[ciaranob]

1) unknown
2) 95.5%
3) 5100 mi
4) unknown
5) 11/2022

Location: cool (Seattle-ish). In the 10 weeks I've had the car, only a handful of the 126 trips were above 10*C.

# times charged to 100%: quite a few times, 10-12? About once a week, prior to going up in the mountains. All but one of these on L2 at home.

how often charge dropped below 20 or 10%: never!

Clarification on #4 above: MyPorsche does not show _any_ transactions under my account. I'd say about 12 total DC charging sessions, corresponding to ~2200mi. So far I haven't found this data in the CarScanner app, will keep looking. Roughly counting from the trip log, it comes to about ~800kWh (upper limit).

Great thx - will add to the db as soon as I get back today - odd the charges not showing up - were they with PnC or separatelly?

 

[WasserGKuehlt]

Great thx - will add to the db as soon as I get back today - odd the charges not showing up - were they with PnC or separatelly?

More than half were via EA or paid with a credit card. I’ve had exactly 5 successful PnC charges.

 

[ciaranob]

More than half were via EA or paid with a credit card. I’ve had exactly 5 successful PnC charges.

Positively weird how my every pnc charge (13 or so) is a listed transaction in the app whilst used here in TX whereas quite a few folk on western seaboard (CA/WA/OR) seem to have a very hit and miss record.

 

[ciaranob]

More than half were via EA or paid with a credit card. I’ve had exactly 5 successful PnC charges.

Data added - thx again. Updated the chart in Post #1.

 

[whitex]

Positively weird how my every pnc charge (13 or so) is a listed transaction in the app whilst used here in TX whereas quite a few folk on western seaboard (CA/WA/OR) seem to have a very hit and miss record.

I have successfully charged via PnC ~30 times (all on my trip home from the dealer), but there are no transactions showing in the app. I even remember one of the session ran over 30 minutes and was supposed to cost me about $0.30.

 

[Gubab]

1. 99,8
2. 99,8
3. 17 miles
4. 0 DC
5. Nov 2022

So here is my first update:
1. 99,8
2. 97,28
3. 5368 miles
4. 836 kW

I only used battery-saving fast charging, no faster than 200 kW. 6 times charged to 100%. We have cold temperatures in Germany since delivery ( 0-5°C) in December. The only drops in SoH were when unintended charged to 100% and not moved for a couple of hours ( 1x the shop that did PPF, 1x timer did not work when photovoltaic dependent charging, 2 times unintentionally "direct charging" when i actually wanted to use a timer) I wonder whether these incidents caused the drop of SoH or is the car updating its SoH when charged to 100%.

 

[ciaranob]

So here is my first update:
1. 99,8
2. 97,28
3. 5368 miles
4. 836 kW

I only used battery-saving fast charging, no faster than 200 kW. 6 times charged to 100%. We have cold temperatures in Germany since delivery ( 0-5°C) in December. The only drops in SoH were when unintended charged to 100% and not moved for a couple of hours ( 1x the shop that did PPF, 1x timer did not work when photovoltaic dependent charging, 2 times unintentionally "direct charging" when i actually wanted to use a timer) I wonder whether these incidents caused the drop of SoH or is the car updating its SoH when charged to 100%.

Thx, great input - I'll get this on the chart - your worry though is TBH a wee bit redundant i.e. any reading above 97% is essentially in the noise and effectively almost counts as no change imo ! By comparison, my car, albeit suffering from being driven in a hot climate, is at 92% with barely 1000 more miles driven.

PS: just realized this is your second entry - I'm awake now !

EDIT - for clarity what I mean to say is that your data shows the shallowest curve in respect change in Soh which is still near delivery high and above even the most optimistic curves for your (Cool) climate zone.

Yours are the highest positioned two grey linked diamonds in the chart:

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