New positive proof of a working Newman fan motor charging a battery

[maxc]

Hi all,

My moter has been running for 1 hour and 20 min. The battery  is a 5 year old 11amp hour 12 volt tractor battery. It's sulfated. It had 10 volts no load. If you dead shorted it out you could only pull one amp. When i started running the moter it was at 9.7 volts. Now it is 9.8 volts about 200 rpm. I was lazy and did not add 8 more ohms of wire to the coil. I have 17.7 ohms, 30% duty cycle. I used carbon brushes and stainless steal shaft and tape.

I think I just built a battery desulfator LOL

Mark

[hartiberlin]

Okay Mark,
now put a 12 Volts 5 Watts halogen incandescent bulb in series with the minus pole
or plus pole of the battery. Will it light up when the motor is running ?
Will it light up, when the motor is not running and you just use the coil as a preload
resistor for the halogen bulb ?

What is your current avarage input current into the motor ?

Surely the battery will be desulfated. Just wait and see.

[pg46]

Hi All-

Just wanted to report in.
Running with one battery slightly depleted, I haven't noticed an increase in voltage yet. I certainly need to improve my comutator though. I tried various materials and have so far the best spark from using aluminum and copper. I tried a carbon rod from an old dry cell battery but didn't see much improvement.
It is obvously producing higher voltages as when one touches either end of the spinning shaft you get good electric shocks from it. It must be at very low amps however and might then take a long time to charge up a battery.
Just for fun I put it into a tesla 4 battery set up where after an hour I did note an increase in voltage of 0.1 volts. It needs to be improved and tested a lot more before conclusions can be drawn though.
Thats it for now. Hope to hear any results negative or otherwise from the other experimenters.

[CLaNZeR]

Good stuff MaxC and pg46

Got home tonight for the weekend and nice deliveries below waiting:

I went for  couple of standalone Amp Meters one that goes from 0-1mA and the other 0-500mA.

Also got a good deal on analogue Multimeter as all mine here are digital.

Tomorrow I will start work on the Coil Winding machine and get that wire sorted!!!

Is it okay after so many winds to strip the enamel back and test the resistance, if so should I re-insulate the the enamel was stripped off with thin clear tape?

Yet another good learning experience and hope o have summit runnin by the end of the weekend. 

Cheers

Sean.

[TheOne]

I like your equpement