Problem with the 12v battery on my MG4

[dmesg]

I also have an issue with dead 12V battery, discharging within just one day. But it only happens if the car has no internet connection (e.g. left in underground parking without cellular reception).
If left outside with cellular reception, the car goes on for weeks without an issue (HV battery charges the 12V one).
Definitely feels like a bug.

 

[Burgo]

I also have an issue with dead 12V battery, discharging within just one day. But it only happens if the car has no internet connection (e.g. left in underground parking without cellular reception).
If left outside with cellular reception, the car goes on for weeks without an issue (HV battery charges the 12V one).
Definitely feels like a bug.

Interesting. Exactly the same has just happened to us we've left before for over 3 weeks with no problem.
Parked the last 2 days in a no cell phone area and 12v was flat.

 

[Sloucher]

I wonder if this is the same issue I get with my phone. When it can't see a signal, it gets very hot because it's using a lot of power searching for a signal. Could be a similar issue with the MG4 12v battery

 

[Mouss]

I read that too on Facebook, a guy said his car drain the 12V battery if he parks somewhere the MG4 doesn't have cellular reception.

 

[tsedge]

I wonder if pulling a fuse would easily fix that.