Tom, the reason you it all look good when you put a volt meter on your batteries is they are wired together and one might be dead and the other one good is gonna read good voltage. I'm just not sure that a 15amp charge to 4 Optima's that equal 3.75 amps a hour is going get you a full charge overnight period. I put a 10amp charge on 1 Optima and it wasn't fully charged overnight. At the dam run you can check out my system and I heard a rumor that Party Cat and Jordy might be there so you can see his. I have a feeling the Genny/inverter deal is in your very near future because this other then won't work... Again been there done that!!!
I agree about the volt meter and will seperate them tomorrow night and check them out. I probably will not be fully charged overnight but I do have power available to me every night wether in the garage or slip. I plan on keeping it hooked up at all times since the charger will not overcharge/burn up the batteries. I will take a closer look at yours and PC at the Almost to the Dam Run. Thanks for all the help.