Switching from leisure battery dc supply to a 240 v ac- 12v dc power supply to feed a load ( fridge )

[t0mb0]

What battery and EHU charger have you got?

 

[osman]

AGM battery and not sure what the charger is as it was all installed for me , Im just adding things,

 

[Pete C]

Don’t worry about that. A decent charger can output 10A continuously. Your fridge will take about 5-6A spasmodically. Your leisure battery will be fine. Ours has been fine in the South of France several times.

Pete

 

[osman]

Thanks to everybody for the input on this over thought out concept .. it worked as I expected .
But one aspect I did not bring up due to not wanting to over complicate the general schematic of the idea .
Was that I also use a victron solar controller and my load output is coming from there … the shared negative between the two circuits confused the power monitoring of the load output … it worked of course but I could no longer monitor the load output current and power ( using the victron app ), this is unacceptable to me of course !
So I’m no longer continuing my switch idea instead I’m keeping the two circuits totally separated. Voilà , out of interest does anyone else use these sockets / plugs ? I find them far better than the old cigarette lighter nonsense