Help and hello!!

[Bob600]

Hi all.
Just got my 2002 elldiss suntour and still finding out what all the knobs do!
Can anyone help to let me know which of the symbols on the control panel is for hookups and which one 12v please.
Thanks

 

[makemischif]

Is that not a switch to select what battery you want to use either van starter battery or house leisure batteries.