Dead 12 volt battery this morning.

[JimBob]

[QU

Car still at dealership. They claim that the battery is fine but they are waiting to see whats up after charging it overnight.

Out of interest is the problem with the big battery or the little battery (12v).

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[John89]

Out of interest is the problem with the big battery or the little battery (12v).

It's the small lithium battery. The large main battery was at 50% (The amount I charge at when I'm not driving car frequently).

 

[John89]

Dead 12 volt battery this morning. Never had a problem before.

But I know what caused it. The car was plugged in and charged properly this morning. The car looked ok. I started playing around with the different service options in the MY Porsche App with the car plugged in. The first I tried was the E-Mobility option. And just got the little spinning wheel for most of them and the service could not connect with the car. Then played around with the the other services and had no problems. An hour later the 12 volt battery was dead.

That'll be the last time I try that.

RECOMENDATION. DO NOT TRY AND CHANGE THE SETTINGS IN THE CAR FROM ANYHWHERE OTHER THAN THE PCM.

Yep, it was recommended that I DO NOT use app to change profiles....

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