Here is the one I use.
http://www.batterystuff.com/battery-...A/DLS1275.html
Used to have a generator but took it out. I didn't like the heat and other possible problems that could occur. I am much happier with the charger. When I leave it in the slip at night I just plug it in and by the next day my 4 batteries are fully charged. When the boat is in the garage I plug it in there also. Works great. One thing I had to do was change the plug from the 20 amp plug to the regular plug.