anyone ever try fitting an alternator to an ebike?

charge pump is what your looking for pablo. on a larger scale then this one.

oh, like the guy earlier, cept i use electric to get motor started then assist on take off. the two together when in motors power band shoot me up over 30mph quick. sla batteries are useless so i added a moped motor i had laying around. well it was on a ten speed bike before i bought the pos ebike. ive pondered this on the fly charging issue too.

I had a Peugeot when I was 14 that was my favorite motorized two wheeler Ive ever owned that looked a lot like yours.