I thought this was an interesting article here
regarding the installation of an automatic charging relay into a system with a smart battery charger already installed.
There could be possible conflict with the logic of the ACR and the onboard charger while on shore power.
Not sure how I would wire the relay here
mentioned in the article, nor am I certain of which line to tap into. Well, all these years of manually managing the battery switch I am not worried about forgetting, but would like the convenience of not having to open the engine hatch each time.