That is interesting.riki1 wrote: ↑Sat Jan 04, 2025 1:56 pm Hello CrowSysE243. Last night I charged my car (soft ver 3.7) in the garage to 80%. So I assumed that the 12V battery would also charge. When I got to the car in the afternoon, the keyless entry didn't work (I had to press the button on the key), so I was curious about the condition of the 12V battery. I connected the OBD2 adapter and the 12V battery had only 54% SoC. Interesting...
I have only been capturing 12V battery state of charge data since December 2023. There is generally some delay between the car finishing charging and the data being captured. The recorded 12V SoC has only been below 70% 4 times, 2 were in December 2023 and one was in January 2024. The last one was in December 2024 when the charging finished at 04:00 but I did not record the data until 11 hours later by which time it had dropped to 66%. Most of the time the 12V SoC has been above 85% and generally it has been above 90% when it was recorded. I have not analysed the data so far to understand the pattern, however at the times that I have taken the data shortly after the charge has completed the SoC has been in the high 90's.
I double lock the car with the key and by touching the handle so keyless locking is disabled when I am at home so I do not have information about the 12V SoC at which it stops working, however the car does disable some services and the app displays the following message when it has dropped to around 60% and the functions are not re-enabled until the 12V battery reaches 50% SoC and the DC to DC converter starts charging it. It seems likely that the keyless entry would be disabled at the same time.
