I have just purchase a 2001 340 Sundancer. I have four batteries on the boat as I can tell the port side battery have two in series for the house and port engine the other stand alone battery is for starboard engine and the helm radio/cd electronic and other battery for the generator. I would like to have one battery for port and one starboard two for the house one for generator. That way I can tun off my engine batteries and use house only batteries. Reason why I ran my batteries down I was not able to star the engines. I was not ruining the generator. I had both refrigerator on 12v running. Batteries were done in 3 hours. I replace all three batteries with group 29 840 cca had group 27 800cca. Du I have to run the generator when on anchor. Hate the noise of the generator ruining and the fumes wen swimming in the back of the boat. Any suggestion would be appreciated.