daveo4EV
Well-Known Member
- First Name
- David
- Joined
- Jan 28, 2019
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- 160
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- 5,793
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- Location
- Santa Cruz
- Vehicles
- Cayenne Hybrid, 911(s) GT3/Convertable
- Thread starter
- #31
@LukeManning that you very much -being a 30 year software engineer it's also interesting to me which is why I included it in my bug report…"I plugged into my 11 kW EVSE at 10:35 pm
Charging was cooking along at 10.5 kW at 10:39 pm with a target SOC of 85%
I verified charging was still working via Porsche connect app between 11 pm and 11:15 pm - then I went to sleep According to my home power monitoring the vehicle continued to charge until 11:22 pm - but by 11:36 pm it had stopped for some unknown reason - see picture"
The bolded text is what I personally have been contemplating is the issue going on here.
Our service team has found that the 12V battery has a "life" of about 15-20 minutes before it dies when running without the main battery charging it. It is surprising to me that between 21-36 minutes after you stopped using the Porsche Connect application that the 12V battery died.
we know 4 facts from my report
- the battery was fine at 10:33 pm - seen the dash board photo
- the car was charging from 10:35 to 11:36 pm
- I check connect app between 11 & 11:15 the car was charging just fine
- the car had stopped charging by 11:36 pm (I don't know if it was actually dead) but it's reasonable speculation it's death is why it stopped charging, but factually we don't know.
and I agree 100% - I believe the time frame between 11:15 and 11:36 is the "critical" time frame in which the fault is happening…as to why - we can't even speculate - which is why we're here.
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