Converting a Ceiling Fan into a Generator

the charging system must use wind to blow the gen. i don't understand where you get energy to charge battery when it without wind blowing?.. it's always charge whenever the wind is blow and your light must on any time you need to... if it's very low wind or no wind you will get the less power from wind... but the more power that you use to light on will out from battery if it's windy while you turn your lamp.. the power will seperate in to way to charge batt. and glow your lamp...

sorry that i am not clever in english because it not my country languge so i just try to explain!

please follow this thread.

Although its possible to do, there are several possible drawbacks:-

1) very little output most of the time, OK for charging mobile phones maybe...

2) Bearings were not designed to work outside in any weather, rust will quickly become a problem....as will corrosion on many other parts....

3) if it was originally designed to run on AC (and its not a "universal" motor), you need some really good help as making an Alternator from an AC motor is not as easy as many think. A DC motor is far easier, an old stepper motor (one that "cogs") is also a good idea.....and gives an AC output that can be rectified to make "lumpy" DC....

I still wish you well in your endeavour.....

There are people out on the inet that have used old drum brake style wheel hubs to do this. In any case wind speed vs rpm will be the problem. I have an old wind generator off of a sailboat. I put two three-vane hubs on it and it became around 50% more effective. I think around 10 or 12 vanes or blades would be most efficient with low wind speed without sacrificing high speed effectiveness.