In many cruising grounds, at least a couple of times a month, the wind won’t blow and a passage will be made, at least partially, under power. And, as long as the engine runs continually for 6-8 hours, this will be a perfect opportunity to charge the batteries to 100%.
But even if you have the biggest and best alternator in the world, if you don't have a good regulator and, in most cases, reprogram it from the factory default settings, your batteries are not going to get that full charge they so desperately need.
The Regulator And Its Dirty Little Secret
Of course most cruisers know that you need a good three stage regulator to control the alternator. But sadly…it’s dirty little secret time:
To continue reading login (scroll down) or: