On Jan 18, 3:17*pm, "Morgans" wrote:
Most engines like that have a flywheel magnet and stator system, and are
pretty anemic in the amount of current they put out. *One of the small
alternators from something like a small tractor

After suffering for years with motorcycles that could barely light a
decent headlight, it was fantastic to get my current bike, a 1995 BMW
R1100.

It has an 800W alternator. That's a lot of amps at 12V!

I don't know how many of those amps it can put into the battery. It
has power outlets for both rider and passenger intended to plug
electrically heated clothing in to for winter riding. (not necessary
in NZ, so I've never investigated properly)