SOH of battery of my Taycan 4S 93kWh battery after 30.000 km

[MrJack]

I find this nice app for obtain certificate of state of healt of my battery.

The app is PowerCheckControl and work only on Android for Taycan at the moment, but the developer say that the updated version for ios will be released very soon.

It work tigheter with Power Cruise Control that monitor your battery during travelling.

 

[Gubbjaevel]

Interesting!

Almost 2yrs old Taycan Turbo here.

Wonder how reliable this reading is?

 

[batteredhaddock]

Interesting, does it measure over a given period or is it just pulling the reported info from the OBD? My iPace is currently reporting 93.5% battery health after 22k miles (35.4k km) and 34 months. Some conjecture the car might be being optimistic in the OBD report though it does tie in with my expected range over long trips.

Still, Jaguar seem to have been (frustratingly) conservative on their charge speeds. Its likely the car can take more on DC than their warranty agreement with LG. Might contribute to some slightly higher longevity but the margins are too small to be anything more than speculation (and how we charge etc).

I do plan to use the reduced DC charge profile on the Taycan when I get it given a 4 year PCP and the fact even that will be blindingly fast vs the iPace (my only real complaint about the iPace to be honest). I'll flip it to full rate when I drive to the Alps. AC wise will do 80% with 100% monthly to balance cells.

Cheers

Alex

 

[marvinp]

I find this nice app for obtain certificate of state of healt of my battery.

The app is PowerCheckControl and work only on Android for Taycan at the moment, but the developer say that the updated version for ios will be released very soon.

It work tigheter with Power Cruise Control that monitor your battery during travelling.

I'm new to EVs, so not familiar with this at all. Is the app saying that you've lost ~10% of range since you bought the car? Is that considered high/low/normal?

 

[whitex]

Does it work with any OBD dongle available in the USA?
Update: it seems the German marketplace will ship their dongle to USA.

 

[Boss Hogg]

Interesting app/info, will help inform potential battery warranty claims. Is the max. capacity % measured against the software controlled capacity of 84kWh or physical battery capacity of 93kWh?

 

[MrJack]

Interesting app/info, will help inform potential battery warranty claims. Is the max. capacity % measured against the software controlled capacity of 84kWh or physical battery capacity of 93kWh?

I think against capacity of 84%
Power cruise control say that i have 76,95 kwh at 100%, i still don't know how much large is the buffer when the battery is at 0% if the capacity is 90% of 84 kWh from the calculation maybe i have near 1.5 kWh at 0%.

 

[MrJack]

Interesting, does it measure over a given period or is it just pulling the reported info from the OBD? My iPace is currently reporting 93.5% battery health after 22k miles (35.4k km) and 34 months. Some conjecture the car might be being optimistic in the OBD report though it does tie in with my expected range over long trips.

Still, Jaguar seem to have been (frustratingly) conservative on their charge speeds. Its likely the car can take more on DC than their warranty agreement with LG. Might contribute to some slightly higher longevity but the margins are too small to be anything more than speculation (and how we charge etc).

I do plan to use the reduced DC charge profile on the Taycan when I get it given a 4 year PCP and the fact even that will be blindingly fast vs the iPace (my only real complaint about the iPace to be honest). I'll flip it to full rate when I drive to the Alps. AC wise will do 80% with 100% monthly to balance cells.

Cheers

Alex

It is just pulling from OBD, the developer say to me that this number is not a really SOH but the capacity respect the new car... i don't know how much they consider for the new car.
I will ask more information...

 

[SHN]

I'm new to EVs, so not familiar with this at all. Is the app saying that you've lost ~10% of range since you bought the car? Is that considered high/low/normal?

I think 10% is worse than average. I found this degradation tool. Unfortunately, it does not have statistics of Taycan though.

Electric Vehicle Battery Degradation Tool

 

[MrJack]

Interesting!

Almost 2yrs old Taycan Turbo here.

Wonder how reliable this reading is?

How much kWh have your car at 100% of charge?
Mine 4S has 78,15.

 

[Midlifecrisis]

Can anyone connect it to a new car to see what it shows? How does it connect? Is there a dongle? I have iOS so no good to me anyway - although I am collecting my new car tomorrow ?

 

[farazkhu2]

I find this nice app for obtain certificate of state of healt of my battery.

The app is PowerCheckControl and work only on Android for Taycan at the moment, but the developer say that the updated version for ios will be released very soon.

It work tigheter with Power Cruise Control that monitor your battery during travelling.

I am just curious to know if this analysis is considering that Taycan batteries have 7 or 8% charge for non driving purposes ( whatever it is called ) and when your app runs this diagnosis it is only going against the remining 92% of the battery?

Doesn't any one know what it is called, where Porsche keep certain amount of batter designated for internal functions etc?

Cheers

 

[ciaranob]

I am just curious to know if this analysis is considering that Taycan batteries have 7 or 8% charge for non driving purposes ( whatever it is called ) and when your app runs this diagnosis it is only going against the remining 92% of the battery?

Doesn't any one know what it is called, where Porsche keep certain amount of batter designated for internal functions etc?

Cheers

The usable (accessible) kW in the 93.4kW battery plus is 83.7kW.

So if MrJack is seeing only 78.15 kW at 100% charge then that is only 93.4% of the available 83.7 kW (odd coincidence that his SoH is 93.4% of original!!)

So at first glance it would seem that he is experiencing 6.6% battery degradation - suspect this is a bit simplistic on my part and fairly sure other factors involved here . My biggest assumption here of course being that 100% charge is measured against the usable kW of 83.7 and not the 93.4kW!

 

[Fish Fingers]

The usable (accessible) kW in the 93.4kW battery plus is 83.7kW.

So if MrJack is seeing only 78.15 kW at 100% charge then that is only 93.4% of the available 83.7 kW (odd coincidence that his SoH is 93.4% of original!!)

So at first glance it would seem that he is experiencing 6.6% battery degradation - suspect this is a bit simplistic on my part and fairly sure other factors involved here . My biggest assumption here of course being that 100% charge is measured against the usable kW of 83.7 and not the 93.4kW!

So, just to confirm I have got this right......

Assuming the car is brand new and i am charging to 100%, it is actually charging to 83.7kw and not 93.4kw?

Main reason for asking is working out how much charge I should be looking at to maximise my cheap rate tariff (4 hours overnight)?

For example, does charging from 70% to 80% add 9.3kw or 8.3kw?

 

[whitex]

So, just to confirm I have got this right......

Assuming the car is brand new and i am charging to 100%, it is actually charging to 83.7kw and not 93.4kw?

Main reason for asking is working out how much charge I should be looking at to maximise my cheap rate tariff (4 hours overnight)?

For example, does charging from 70% to 80% add 9.3kw or 8.3kw?

The actual battery never discharges below some SoC which the software will report as 0% (not true zero, if you reached true zero the battery is dead and not recoverable). The battery also never charges to true 100% as that could significantly affect its longevity. However, between the highest and the lowest that your software allows you to charge or discharge to, there is 83.7KWh of usable energy, and the percentage is supposed to be of that region only. So when you see 100%, the battery is as full as it is allowed by software, and when it says 0% it is as low as the software will let it get to by driving (as you park it will slowly get lower, which is why Porsche says to not park the car for long times with 0% as eventually the battery will reach true zero and it will need replacement - happened to early EV's like the Tesla Roadster).

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