Adding battery charger to DC only boat
I have a DC only sailboat with very modest electrical needs: LED nav and cabin lights, VHF, cabin fan, LED compass lights, knot meter, depth sounder.
I have a Xantrex 10A multi-stage battery charger that I want to permanently install to run off shore power. I have no plans to add any other AC circuits, just the charger. The charger has built-in galvanic isolation.
My big question is do I need to ground the AC on the boat? My thinking is to install the shore power inlet, wire the hot and neutral AC through a 15A bi-pole breaker onboard and wire both of those and the AC ground straight to the charger. The DC output side would be wired to the battery - not the DC panel.
Is this right? Thanks.