Car recently entering deep sleep very quickly

Mache_Nor

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Heya!

Mach E '21 with 111 000 km on the odo. Except for the HVBJB it has not been much issues. However, these last weeks the car will go into deep sleep (I am guessing here, it does not state that it is in deep sleep) after just being parked for 15 minutes. Previously I could send commands to it through Fordpass for a day or two before the app and car would not communicate. Now, it ignores every Fordpass command shortly after parked.
The charge level of both the big and small battery seems fine, and otherwise there has not been any updates (most of Europe are still stuck on pre-6.14 update with the new UI). Even went as far as setting up PAAK again (my god, what a nightmare, took 3 days to get the connected services back working but we got there eventually!).

Any of you having some tips to what I can try? Thanks in advance.
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Mach-Lee

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Are you on the original 12V battery? It might be going bad.
 
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Mache_Nor

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Are you on the original 12V battery? It might be going bad.
It sure Is. Located in a cold country, which in theory should mean less wear and tear on the batteries, alas, maybe not enough to mitigate it? Are there some steps I can take to test this? My next service is not before 2026 eeek! Oh, and no other symptoms currently.
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