DC motor as gen.?

[bmwsid]

I have a 2000 rpm 1.3 HP motor. (Cushman scooter) Will I make enough electricity with it to charge 12 V batteries?  Will voltage increase as rpm increaces?

   Sid, near Niagara Falls

[coldspot]

sid-

What voltage was the scooter?

Yes, "voltage increases as rpm increaces"

But, wind mills will only turn at about 300-400 RPM's

So if you can spin it up to that and get voltage reading then you will know.

[bmwsid]

It was 24 volt. It had 4 6V deepcycle batteries in it.

[bmwsid]

I do get a reading, but not a very big one......I have a pari ov vice-grips on the shaft, and spinning it as fast as I can by hand gets less than 1 volt. I guess easy is not going to work for me, I will have to build 'from scratch', using something more like the brake rotor idea.

         Sid

[bmwsid]

Coldspot;

        Thanks for the answer. Guess I have to go make some windings.......have to get the wire first....

[coldspot]

So-

24 V DC motor at 2000 R's

would be 12 V DC at about 1000 R's, maybe!

If all ya have to test spin it with is the vise-grips, you'll not get very good R's that way.

Maybe, try wrapping a strong string around the shaft and using a T type of handle to get a good grip to give it a really good pull and get a few more R's for a quick reading.

 but yes would be best to build a scratch version or a conversion with a 3 phase low RPM motor, (1750).

Have fun.

Remember researching here is a real money and time saver !!!!!!!!!