As relayed to me, wife's out sailing and I'm in the office:
So we're motorsailing along on the starboard engine
and the battery alarm
goes off. The house set is down to 20% which is strange because the engine
should be charging
it. Port engine doesn't start right away because we left the switch turned on to charge it. It had the opposite effect, draining the port service battery
with the house set.
After arriving back to the dock
(which was difficult, cats drive like tanks
, ever drive a tank with 1 set of treads?) we had the mechanic
look at the engine. And he says the starboard engine alt regulator
is not connected to the house bank. The entire time I thought it was and both regulators were topping up the batteries but it turned out not to be the case.
So to my cat owners is this standard? The engines are about 20ft apart so I imagine the wire run would be 25-30 feet with the regulators putting out 40-50A. How do other catamaran
owner wire up their engines to charge the house? BTW, this is a lagoon 380
and the house set is in the port rear cabin