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post #1 of Old 07-22-2009 Thread Starter
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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.
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