By putting permanent magnets on a rotor inside a car alternator to use it as a generator, what is best, more magnets or less, and how much exactly? Would it be more
Amazon.com: RAREELECTRICAL NEW 12V 20 AMP PERMANENT MAGNET ALTERNATOR COMPATIBLE WITH GENERATOR DYNAMO 124190-77201 : Automotive
DIY Permanent Magnet Alternator
How To Buil a DIY PMA(Permanent Magnet Alternator) - YouTube
Anself 400W Three-phase AC Permanent Magnet Generator Mini High Efficiency 950RPM Low Speed Wind Generator Motor AC Alternator for Wind Generators DIY - Walmart.com