Can you hook an alternator to an electric motor and have it charge the batteries as it runs?

best electric bike hills image

Ramon

or a bike generator (or is that the same as an alternator, im new at all this) im starting a project electric bike, and looking for ways to keep it running longer than the 3 or 4 hrs that it runs now...will this idea work or does anyone else have ant better ideas without breaking the bank.

Answer
It is simpler than that. If you go down hill the motor will generate and charge the battery. The problem is battery efficiency but if you use super capacitors instead of batteries you will be able to re-coupe some of your energy. With clever electronics you can get some power back when you brake but it is all a bit expensive. The simple bike is a really good mode of transport and has little room for improvement. I did assume you were not trying to invent a perpetual motion machine.

How can I lose weight from my legs besides using the bike?

Julissa

I'm 19 and I have big legs i mean I'm skinny and everything and everyone loves my kegs but me. I've always had a issue w them.. Besides going to the gym or buying a electric bike or watever wat r other ways to tone or lose weight from my legs??

Answer
bikes are not good for legs, once you lose fat mass you increase muscle mass, mine are huge and I still hold my HS leg press record.

The best way to lose is to target muscles individually, do a lot of stretches. Also try endurance based activities.

Try and avoid hills while cycling or running and stay on the flats.

Swimming would be my best suggestion.

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Title Post: Can you hook an alternator to an electric motor and have it charge the batteries as it runs?
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