Does your Macan EV keep SoC stable when left idle for a week or longer?

[platypus]

When the car was idle for two weeks this summer, I didn’t check the SoC even once, so it’s definitely not that.

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[rcomeau]

if you're checking the SoC everyday, you're causing the drain each time.
so try only checking it once/week....

I don't think the phone app speaks directly to the car, but to a server which asynchronously talks to the car using whatever frequency it normally does. It is possible talking to the server causes the server to ping the car, but likely not.

 

[platypus]

@rcomeau good point, indeed the app now tells you how long ago it got data from the car when you’re looking at the SoC, I assume because people believed before (for good reasons) that refreshing the app would sync data with the car.

 

[ChrisFromUK]

I don't think the phone app speaks directly to the car, but to a server which asynchronously talks to the car using whatever frequency it normally does. It is possible talking to the server causes the server to ping the car, but likely not.

The app is definitely not updating directly from the car but if you send something to the car like changing the Charge target % then the car will update the SoC with the server and from there the app.

 

[krissrock]

I don't think the phone app speaks directly to the car, but to a server which asynchronously talks to the car using whatever frequency it normally does. It is possible talking to the server causes the server to ping the car, but likely not.

it's not so much of how the car is communicating...it's how many systems have to be polled for that communication.

my understanding is that when you interact with the app, the whole car is basically turning on. It has to poll all the resources and wake up all components that report.

the Locking system status
the Doors status
the window position status
the roof position status
Trunk and Frunk status
the Lighting system status
the Braking system status
The Battery System status
Charging system status
The milage status
The GPS location status....

every time you open that app and it request an update. Polling all these systems takes energy... so i would think if ppl are checking the app daily or multiple times a day...they're causing the "phantom" drain they're looking for...

 

[platypus]

@krissrock it’s really not what’s happening here I think: one day the car started losing 1% battery, and I didn’t change the way I was using the car or the app before/after.

I’d also argue that if checking the app once a day drained the battery by 1%, (we’re talking ~1kWh here), Porsche should still fix something.

 

[Petzi]

now my car is parked for 3 weeks. it is not plugged in. parked at 12/12 with 60%.. checked 12/20: 60%,
as of yesterday: 60%.

 

[krissrock]

@krissrock it’s really not what’s happening here I think: one day the car started losing 1% battery, and I didn’t change the way I was using the car or the app before/after.

I’d also argue that if checking the app once a day drained the battery by 1%, (we’re talking ~1kWh here), Porsche should still fix something.

Well i think there's a simple test for this.... If you leaving it for a while,, don't check it for it at least a week... And see if it's dropped 7%

 

[Awaz]

now my car is parked for 3 weeks. it is not plugged in. parked at 12/12 with 60%.. checked 12/20: 60%,
as of yesterday: 60%.

When you next drive, that percentage will drop after just a short distance.

 

[Petzi]

When you next drive, that percentage will drop after just a short distance.

this thread is called: “does the car keep soc stable after one week?“
answer: yes.

concerning higher energy consumption after start:

It goes without saying that every machine consumes more energy after starting.
1.) Until the operating temperature is reached in an ICE engine, or until the battery has reached its operating temperature in an EV.
2.) The same applies to both drive systems: until the vehicle interior has reached the desired temperature, significantly more energy is required. And yes, this is also the case with ICE engines. It's not all for free there either.

porsche gives you an alternative: plugin, set up departure and precondition.

 

[CHP]

Not sure what happened, car is idle since 5th of December. Stable at 49% until Xmas (last checked, but battery not updated for 5 days). Showed 31% yesterday (updated same day), 31% this morning (updated 18 min). Now 31% but lost connection. Car is at the dealer for sale (not disconnected yet, tracking and Porsche app states no movement, its not in the workshop). Can't exclude that they updated software but would be odd thing to do in tight space used care storage parking. Still, nearly 20 kW would seem a lot. As other mentioned before, app is likely not reliable if car is idle for longer periods. Just wonder why car battery is now updated more frequently (hours as compared to days).

 

[Petzi]

Not sure what happened, car is idle since 5th of December. Stable at 49% until Xmas (last checked, but battery not updated for 5 days). Showed 31% yesterday (updated same day), 31% this morning (updated 18 min). Now 31% but lost connection. Car is at the dealer for sale (not disconnected yet, tracking and Porsche app states no movement, its not in the workshop). Can't exclude that they updated software but would be odd thing to do in tight space used care storage parking. Still, nearly 20 kW would seem a lot. As other mentioned before, app is likely not reliable if car is idle for longer periods. Just wonder why car battery is now updated more frequently (hours as compared to days).

the update off the informations in the app happens when the car wakes up. somebody moves the car (how do you know that nobody is moving / working/ driving the car in between?)

ps: if somebody wants to update the information in the app, you just need to switch on / off the conditioner for a short time through the app.

 

[CHP]

the update off the informations in the app happens when the car wakes up. somebody moves the car (how do you know that nobody is moving / working/ driving the car in between?)

ps: if somebody wants to update the information in the app, you just need to switch on / off the conditioner for a short time through the app.

Tracker is still live. No movement on tracker and no new driving event on Porsche app. Tracker would notice if they moved out of parking spot.

Intermittent connection to car, battery status now updating very frequently, preconditioning off. Something changed, could this be drained 12V?

 

[Petzi]

Tracker is still live. No movement on tracker and no new driving event on Porsche app. Tracker would notice if they moved out of parking spot.

Intermittent connection to car, battery status now updating very frequently, preconditioning off. Something changed, could this be drained 12V?

why do you care what they are doing?

ps: as stated by several people in this thread: there is no update of battery status in the app as long the car is sleeping. somebody has to wake it up. you can wake it up when you switch on precondition in the app. when you did not do it and the data in the app is recent than someone else did something with the car.

 

[CHP]

why do you care what they are doing?

Because I ordered a new Porsche and want to understand what would/can trigger battery drainage. Also, they never confirmed/specified fault of my car. They just took it back.

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