Our 1983 boat had the original battery charger in it, which I believe has given up the ghost. I recently replaced the house battery with (2) 6V golf cart batteries with 245AH capacity, and have a separate 105AH 12V starting battery. Our boat lives on a mooring, and our engine normally only runs long enough to get us out and sailing - maybe 20 minutes out and 20 minutes back in. About once a month we travel to a neighboring city where we take a slip for a night or two with shore power, so our battery charging practices are not ideal. My plan is to replace the battery selector switch with one of the new Blue Sea switches #5511e, which turns on both banks but keeps them isolated, but can be combined in an emergency. I would add a Blue Sea 7600-CL ACR combiner, and a Xantrex Truecharge 20. There are other features I would like to add down the road, but this is what I can do at present. I can purchase all three items for under $350, which I think is reasonable. Does this sound like a reasonable approach? Is there a better alternative without breaking my budget? We use the boat a couple of times a week, and I try to keep battery usage to a minimum so we don't leave them partially discharged for long periods. I have wondered about adding a solar trickle charger, but being on the mooring, I'm not sure it's a great solution. I appreciate any input and suggestions.