MY26 software update (week 36) for MY24-25

[dbsb3233]

Correct.
Pre-conditioning the car in my previous E-tron also heated up the battery but just a bit (using the excessive heat from pre-condition als traverses the battery pack) Not sure about the Macan but this morning I used pre-conditioning and battery temp was 11 degrees Celsius on entering the car but outside temp was 6 but I did not check up front if the battery cooled down to the outside temp or not.

So for instance, if we're on a road trip 10 minutes from the next DCFC stop, and we're not using the car's nav (not sure if it automatically preconditions but some EVs do is using native nav), then we could kick it over to Sport+ if we wanted to warm up the battery for a potentially faster DCFC charge (at the expense of a little range)?

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[PrudentOcean]

Yes.

 

[W1NGE]

i do find all this interesting...cuz the times i've actually tried to put in a charger destination for pre-conditioning, i didn't see any change in the battery temp. And i'm pretty sure it wont pre-condition the battery if the SoC is below a certain %age. Just like you can't do cabin preconditioning if the SoC is lower than 20% iirc...
also, saying that Sport Chrono has battery pre-conditioning? i don't think that's the case. the pre-conditioning for the battery is the same for all models...with a charger put in on the map.
if you're doing cabin precondition/setting a departure time with Cabin preconditioning...you're still technically raising the battery temp because the car is ON and doing things...

The EVSE must be added as a stopover in NAV (not a final destination) and must be DC and >= 50kW and then you have to have sufficient distance / time for the process to work.

Depending on the battery temp at the time ie if already in range then the effect of preconditioning will be less noticeable. If at 18C on a J1.1 and your stopover was a 300kW EVSE about 4 miles away then the battery would be heated close to 32C.

Other factors will influence - current SoC etc.

J1.2 has a different profile (better) and so will work similarly but perhaps at a lower temperature.

 

[MaccyT]

So for instance, if we're on a road trip 10 minutes from the next DCFC stop, and we're not using the car's nav (not sure if it automatically preconditions but some EVs do is using native nav), then we could kick it over to Sport+ if we wanted to warm up the battery for a potentially faster DCFC charge (at the expense of a little range)?

Yes sir

 

[krissrock]

i would really just like to see video evidence of any preconditioning. As I stated before, i've never seen the temp change...and I just tried it again now.
I set the charger destination from the App, and sent it to the car, and preconditioned the cabin for a few minutes as well. It's 40* (4.4C) outside, and when i pulled out of the garage, the battery temp was 48* (8.8C).
I drove 2 miles away, made a stop at a store, and then drove another 5 miles to the charger. By the time i pulled up to the mall, the battery temp had only come up 1 degree to 49*

Do we even know what the target temp is for preconditioning? Because i don't believe it to be in the bracket shown on the dash. Once the temp is in the bracket shown for max charging, USUALLY the fan is on to cool the battery at that point!

 

[MaccyT]

i would really just like to see video evidence of any preconditioning. As I stated before, i've never seen the temp change...and I just tried it again now.
I set the charger destination from the App, and sent it to the car, and preconditioned the cabin for a few minutes as well. It's 40* (4.4C) outside, and when i pulled out of the garage, the battery temp was 48* (8.8C).
I drove 2 miles away, made a stop at a store, and then drove another 5 miles to the charger. By the time i pulled up to the mall, the battery temp had only come up 1 degree to 49*

Do we even know what the target temp is for preconditioning? Because i don't believe it to be in the bracket shown on the dash. Once the temp is in the bracket shown for max charging, USUALLY the fan is on to cool the battery at that point!

I Would guess at least 28-32 degrees Celsius for optimal charging and performance.
Last week I drove 120km (80 miles) without any significant change in the battery temp, just slowly going up a couple of degrees during driving and ending up pretty stable around 18 degrees (outside it was 11).

I Did not select a charger but I set the drive mode to Sport Plus and within the next couple of minutes the battery temp went up by already 5 degrees and within 15 minutes or so it was at 26 degrees celsius and than I hit my destination but the difference was so fast and quick that in my opinion it was the confirmation that Sport Plus actually heats up the battery, which again, makes sense.

 

[Doggo]

i would really just like to see video evidence of any preconditioning. As I stated before, i've never seen the temp change...and I just tried it again now.
I set the charger destination from the App, and sent it to the car, and preconditioned the cabin for a few minutes as well. It's 40* (4.4C) outside, and when i pulled out of the garage, the battery temp was 48* (8.8C).
I drove 2 miles away, made a stop at a store, and then drove another 5 miles to the charger. By the time i pulled up to the mall, the battery temp had only come up 1 degree to 49*

Do we even know what the target temp is for preconditioning? Because i don't believe it to be in the bracket shown on the dash. Once the temp is in the bracket shown for max charging, USUALLY the fan is on to cool the battery at that point!

Do you have the 28.13 update? There were mentioned "improvements" to preconditioning here, but not actual examples. My experience has been the same on yours, but on a recent long trip, entering in a charger, as you did, it ramped up 5c in about 5min which felt new.

When I get a minute I'll go sit in the garage and see if I can replicate your situation.

People talking about Sports+ mode, I just did this. 10min drive (3miles each way), driving gently, it went from 6c to 9c (ambient is 5c), so better than zero, but still marginal.

 

[tmrqs]

i would really just like to see video evidence of any preconditioning. As I stated before, i've never seen the temp change...and I just tried it again now.
I set the charger destination from the App, and sent it to the car, and preconditioned the cabin for a few minutes as well. It's 40* (4.4C) outside, and when i pulled out of the garage, the battery temp was 48* (8.8C).
I drove 2 miles away, made a stop at a store, and then drove another 5 miles to the charger. By the time i pulled up to the mall, the battery temp had only come up 1 degree to 49*

Do we even know what the target temp is for preconditioning? Because i don't believe it to be in the bracket shown on the dash. Once the temp is in the bracket shown for max charging, USUALLY the fan is on to cool the battery at that point!

Setting a charger as a destination does not precondition the battery.
Only happens if the charger is a stop on the journey.

 

[seabird]

- charging the battery WITHOUT preconditioning in these conditions have a very significant negative impact on overall charging time - like 50% or even more like 2x; this I tried several times after I had to start driving a frozen car in the morning with low SoC and charge it before the precondition had a chance to do it's job - the difference was not 2-3 mins longer but night and day, it took I think 2xx longer than estimated charging time

It simply is not true. You can look at the Porsche Taycan graph posted by degenatron.

The difference between preconditiong and not is ~10C. There is no point on the curve where a 10C difference in battery temperature doubles charging performance. It shows a 3.5 minute loss from 20C to 10C.

In support of the above and against previous posters saying preconditioning isn't worth it:

These screenshots mean nothing. They are different charging stations in different seasons on different drives. You are not showing the temperature difference or the starting SOC. This is not a comparison of preconditioning vs. not.

It is really very simple. Start one drive on one day and drive to the DC charging station using CarPlay or without setting a PCM nav destination. Note the starting and arriving temperatures. Note the charge time delivered from the same starting and ending points and the total kWh delivered.

Now do the same thing, setting a PCM destination. You will find that the battery is 5-10C warmer when arriving, but no different in temperature after ~5 minutes. You will also find that the total duration of the charging stop doesn't extend by double. You simply cannot lose that much charging time over a 10C temperature difference. It's a 10-15% maximum difference in charge rate.

That is what I posted, same day with and without pre conditioning even lower peak charging 130kw without the pre conditioning … as it is colder now …

No, it's not what you posted. You posted a completely uncontrolled test from two charging stops that have no relationship to each other.

The fact that one charging session is faster or slower is absolutely not down to a couple degrees of temperature difference. This really is just physics. The graph is right there from Porsche. Take any point on that graph and move up or down 10C. Is your charging speed doubled? Absolutely not.

Watch your car next time you DC fast charge. How far does the temperature increase while driving? How much higher and faster does it go while fast charging? Because you'll be cooling your car before hitting 80% charge even at -10C ambient.

I can post some actual data with actual temperatures when I get home, but you can also look at some Tesla data for similar performance: 1kW of preconditioning raised the battery 3C. Best case, mathematically, for almost all EVs is 3kW of preconditioning, or 10C. That's it.

The fantasy that you're superheating your battery into doubling charging is just not based in reality, unless you're plugging in for only 5 minutes at 10% to hit the 270kW flat curve. The 3-5 minutes savings is very much the mathematical limit. And across a normal, 20-30 minute charging stop, your SOC and the charger itself are bigger factors.

 

[krissrock]

Do you have the 28.13 update?

no, has anyone in the US?
i still don't see the campaign posted on DOT/NHTS sites...I thought everyone gettin the update so far had been outside of the US

 

[Doggo]

no, has anyone in the US?
i still don't see the campaign posted on DOT/NHTS sites...I thought everyone gettin the update so far had been outside of the US

Many have it, including myself (NYC)

 

[seabird]

i would really just like to see video evidence of any preconditioning. As I stated before, i've never seen the temp change...and I just tried it again now.
I set the charger destination from the App, and sent it to the car, and preconditioned the cabin for a few minutes as well. It's 40* (4.4C) outside, and when i pulled out of the garage, the battery temp was 48* (8.8C).
I drove 2 miles away, made a stop at a store, and then drove another 5 miles to the charger. By the time i pulled up to the mall, the battery temp had only come up 1 degree to 49*

5C and 5 miles of driving is too warm and too short a drive to see anything from preconditioning.

Do we even know what the target temp is for preconditioning?

There is no target temperature per se. The cycle will, after 30 minutes or so, raise the battery by up to ~10C from wherever it started. It will not raise the battery temperature above about 25C because no additional heat is needed.

Once the temp is in the bracket shown for max charging, USUALLY the fan is on to cool the battery at that point!

Yes. The battery will begin cooling itself at ~40C/100F.

I Would guess at least 28-32 degrees Celsius for optimal charging and performance.

Yes, roughly correct.

I Did not select a charger but I set the drive mode to Sport Plus and within the next couple of minutes the battery temp went up by already 5 degrees and within 15 minutes or so it was at 26 degrees celsius and than I hit my destination but the difference was so fast and quick that in my opinion it was the confirmation that Sport Plus actually heats up the battery, which again, makes sense.

Yes, it does. Using the same heater as preconditioning, where your temp was up 8C in 15 minutes through a combination of heating and driving. Exactly in line with the 10C preconditioning bump.

 

[tmrqs]

no, has anyone in the US?
i still don't see the campaign posted on DOT/NHTS sites...I thought everyone gettin the update so far had been outside of the US

It’s not a recall so it won’t show there.

 

[W1NGE]

I Would guess at least 28-32 degrees Celsius for optimal charging and performance.
Last week I drove 120km (80 miles) without any significant change in the battery temp, just slowly going up a couple of degrees during driving and ending up pretty stable around 18 degrees (outside it was 11).

I Did not select a charger but I set the drive mode to Sport Plus and within the next couple of minutes the battery temp went up by already 5 degrees and within 15 minutes or so it was at 26 degrees celsius and than I hit my destination but the difference was so fast and quick that in my opinion it was the confirmation that Sport Plus actually heats up the battery, which again, makes sense.

Its meant to!

 

[krissrock]

It’s not a recall so it won’t show there.

all campaigns and bulletins show here on the DOT registry: 2025 PORSCHE MACAN Vehicle Details
even the seat belt pillar campaign shows.
look at the bulletins...

there's even a bulletin for them updating the toy replica catalog

so i guess this update campaign is just late to the party

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