LCD screen reading

[Littlewheels]

I am a little confused by the Red light being alight on my LCD screen when we park up, it happens when ever we use 12vpower on park up, at first l thought what the hell is that ,how could the Vehicle battery discharge but since it’s gone on l think it’s some form of protection of the vehicle battery, there is some form of closedown that protects the vehicle battery from discharging and the Red light is confirmation. It always starts and the light goes out shortly after start up.
l would like confirmation of my thoughts or other if anyone knows.

There is nothing in my owners pack that advises on this, It’s a Mercedes 2012,3.6,Lithiums,B2B all singing & dancing set up.

 

[Littlewheels]

I for got to post image.

 

[dunnah01]

I just ignore the CBE panel reading for the starter battery system. It says random things and doesn't charge the battery anyway. Tried to find out why at one point but gave up and just put a conditioner on the starter battery when on hook up and going nowhere for a while.

 

[autorouter]

Is it a new MH, a new problem, or has it previously worked OK and is now showing a problem?