A simple question for those that know I suspect.
I'm trying to wire up a basic boat system, with a lithium house and a lead acid engine start battery. I have a Victron Orion TR Smart battery to battery charger and just want to know where the main battery isolator fits into this system. I realise both batteries must always be connected when the engine is running so that the charge has somewhere to go when the lithium battery reaches full charge. Can I continue using the traditionals 1/2/both swithch shown as per the schematic at the link below or do I need to have completely separate isolators. Can someone explain or even better draw on the schematic to complete the wiring diagram?
Many thanks for any assistance