hoskoau said...
Hey all,
The old man has just bought a Triton 721 sailing boat which doesn't have a diesel engine. We have a long shaft Mercury outboard which is manually started.
The electrical wiring looks rather dodgy so we will be upgrading most of it. We will be installing a dual battery/solar powered system. One for the essentials (nav lights/radio) and another for the stereo etc
Which leads me to the question of grounding. On a boat which doesn't have an engine where exactly do you ground the batteries to for a 2 wire 1 pole configuration? The two negative terminals of both batteries can be connected to one common bus bar can't they, just the positive side of the circuits need to separate or do both negative sides need to be separate?
Just the negative batteries posts is all that's required. Bring a thicker wire up from the negative terminals on the battery to a negative bus bar behind the switch board. Instal a rotary positive battery switch in an assessable spot near the batteries and have a thicker cable running from that to the back of the switch board to a positive bus bar. Use the two bus bars to wire up your stuff, keep it simple.
