A chance to give Bob Knott some advice!
Bob, after all the good advice you've given me early on, now I have a chance to send some thoughts your way.Bob, I've made major changes in my electrical system and it appears to be all for the better. First, I have installed a regulator in the engine room and disabled the regulator on the alternator. Next, I installed a StatPower battery charger under the navigation locker. You know that space that is empty underneath? It fits perfectly. I believe my StatPower is a 20 amp one--don't believe you need more for this boat. West Marine normally has them on sale.The next thing I added was a combiner (strange name) to separate my battery banks. I then sold my 4D battery and bought 4 six volt golf cart batteries and hooked them in series. Bob, I put them under the dining settee, about center on the boat and forward of the galley sink. They fit perfectly. By moving the battery charger and the golf cart batteries, I freed up two whole section on the port side. This now gives me 440 amps, twice of the 4 D battery and in less space.Then I added a Link 20 monitor to the whole system to I can watch what is happening to my electricity. What a jewel. I installed this late last spring and we did 55 days cruising this summer. With this system I can go about 3 to 5 days without charging leaving the refrig on all the time. Under power I can throw about 50 amps back into the system, but I don't know how long it takes yet. I forget to look. At the dock the StatPower monitors both banks and re-freshes them every twenty one days what ever that means. All I know is that my batteries are working well. I've been told that my batteries ought to last 10 years.By the way, I also tossed the starting battery and put in a deep cycle group 24 in the same place as the original. I had fried the first battery because the battery charger appeared to be wired wrong. In the final stage I put in an emergency button on the pedestal that allows me to combine all batteries to start the engine -- I have to hold that button when I start. I did all this after reading Nigal Caulder book on boat systems. I then hired a excellent marine electrical specialist so I would know the ends were done correctly and I had the proper sized wire.If you want, send me your mailing address to my e-mail and I can send you a copy of the diagram we did to remember all the changes. So far, Bob, the system is working very well and I am very pleased.Good luck,LesSV Trumpeter, H380