LV/12V electrical system

[WigglePig]

Afternoon all.

Is there anyone around in here who has reasonable knowledge of the 12V system on the MG5?
What I am looking to do is to possibly use a smart relay to charge a second 12V battery to run some "other equipment" when the vehicle may be shut down.

Thanks in advance

Piggly

 

[MickeySw]

Afternoon all.

Is there anyone around in here who has reasonable knowledge of the 12V system on the MG5?

Not sure what exactly you’re looking for, but the CCU charges the aux battery every time the car is READY or charging.

Probably the easiest way to achieve your goal is put the second battery in parallel with your aux and disconnect it once the voltage drops below a certain level.