I have an old battery start motor (1967 Evinrude V4 60 HP)that lacks a generator and it's more trouble than it's worth to fit one, assuming I could find the parts which I probably can't.<br /><br />Solar panels are an option but don't put out a lot of charge compared with the possible drain on a heavy stop - start day so that the battery isn't kept at full charge. There's also the problem of the deck space taken up on a smallish boat by something that can't be walked on.<br /><br />I got to thinking of the old bicycle dynamos and modern wind generators and wonder if there is a suitable boat item based on the same principle to charge batteries, either wind powered with a prop mounted above water or water powered with a prop mounted below water?
