My experience is that you need to keep your batts topped up with perhaps a small solar
panel and your need a large capacity alternator
Use large capacity batteries, limit your loads and don't get very discharged before charging
I have had poor luck with large output alternators. Either they are not working, or the smart regulator
is limiting their output, or batts are never discharged enough to demand lots of amps.
This may vary if you are live aboard and then your electrical
needs may shoot up and you need a different strategy. Shiva has an engine
drive refer so the engine
is run when we are aboard at least an hour or so a day minimum to cool the refer. At the same time we create hot water
and charge the batts. Our motor
is running when we come and go from anchorages
and always on for using the windlass
and we will motor
sail in light air, especially if we want to get someplace for some reason... like to walk the dogs
or buy provisions.
Smart regulators probably extend battery
life and a pair of 8Ds are expensive. Taking measures to extend their life with proper charging
is key... and shoving oodles of amps in short bursts may not be the best approach to extending their service
life. Bill T???? what say you?