Hello my name is XXXXX X, is this project alt hooked to a battery source also, wired up?
we have attached the positive lead to a 12volt deep-cycle battery. when i check the voltage, its reading 12.5 which is coming from the battery. there is also a voltage regulator on the alternator which I'm not using. Should I be?
What is the alt you are using, Ford, chevy ect.?
not sure. we purchased it @ autozone because it was the cheapest. its a valuecraft. #7127. it reads delco-bemy on the alternator
Ok, let me see if I can find some info how this is wired, how many total wires are hooked up now?
just the positive to the positive of the battery and the negative post of the battery to a ground.
Ok, give me couple minutes
I am not having much luck finding a diagram, how many terminals on the alt and are they marked?
there is just the one red marked positive post. no connections for a negative and a 2 pronged voltage regulator built in on top.
Does the 2 prong say I or B?
not that i can see... i dont see an I or B.
Does it look like this?
yes it looks like the 10Si
You can wire all three of the terminals together, hook to the output of the alt along with the 2 terminals to the positive battery wire, just dont leave them all hooked up overnight or it will run your battery down. I will try to look for a printable diagram for you so you know how it works in the car. Another thing, when you get this alt turned on ready to charge you will know it because I don't think you will be able to pedal it, these alt's pull alot of energy required to turn them, give me a few minutes and hopefully I can give you some more info. Hopefully everything will work ok.
what i want to do is measure the voltage coming out of the alternator while I'm pedalling and to light up a bulb which will fluctuate as i pedal faster and slower. i dont want my power to come out of the battery for this part of the experiment. i want it to come out of the alternator.
Here is a car wiring diagram, notice how all the terminal are 12 volts, normally there is a ignition switched wire to turn on and off alt. I am not sure if you were going to install a switch or just hook and unhook.
I see, you might be better off going to a cycle shop and look for a wheel mounted generator. Let me look online to see if I can find what I am talking about.
Check this out, maybe a idea here
one last question. Do you have any idea how many volts i should be producing while pedalling? again, we are only getting 1.5 volts pedalling in high gear on the 10 speed.
I am afraid with a alt you won't be able to pedal it.
With a generator, the faster you pedal the more output you have, depends on the generator how many volts, with a alt max is 14.4 volts.
we were going with a dc generator but it was too expensive ($400) thats why i went with a car alternator which had been used in previous experiments i had reviewed online.
Here is a deal that may make your parents day, see if this looks like something you might try.
Wiring diagram click here Here is how the 10si alt is wired in a car.
Let me know what you think or if you have any more questions, Thanks Steve W