I can explain it to you, but I can't understand it for you.
while at MMI I proposed changes to the electrical curriculum because what they were teaching was incorrect.
I've been an electronics technician, nuclear I&C technician and a licensed electrician for the past 40 years.
I was awarded Harley-Davidson electrical expert without even going to the factory school.
yes....I am well aware what a rectifier/regulator is and could explain that to you as well, but it's not your immediate problem.
you cannot troubleshoot electrical problems with a bad battery.
if I were you, I'd listen to me.
or you can continue to wonder why it doesn't work.
but insulting me isn't going to fix your bike.