Joule Thief Bedini Motor

[Pirate88179]

Jonny:

Here is another video I shot today.

http://www.youtube.com/watch?v=2W0kOQAkYDc

Nothing much different except that it has been running and running......and now my charging battery is almost up to 13 volts. (12.9)  With the run battery at only 12.4 volts, if this is linear then is it bad if my charge battery goes up to like 15 volts?  Also, when I touch the positive lead (output) where it connects to the charging battery and also happen to be touching the metal framework I used, which is for a heat sink and tied to the transistor collector, I get a pretty good shock.  I am guessing it is in the neighborhood of over 400 volts as it feels the same as my shocks from the Fuji JT circuit.  I have tried but can't measure this on any of my meters but, I know it is there as I can feel it. (trust me on this)  Is this energy that is being wasted?  Or, is this the high voltages spikes that are going into the charge battery but can't be picked up by my meter because of the high frequency?

Sorry for all of these questions but, I am sure you have been through all of this before.  if there is ever anything I can do to help you, just let me know.  Thanks.

Bill

[jonnydavro]

Hi Bill.Your battery will be fully charged when it reaches 13.8v.You can boil a battery if you over charge it for a prolonged period so i would swap them at 13.8v
.At 12.4v  a lead acid batteries plates will start to sulphate so thats something else to think about and at11.9 it will be considered discharged.
Have you considered making a battery swapper?The daftman has generously posted his circuit on youtube and i posted a link to this in jesus's thread.It is a voltage sensing swapper so it would be ideal for swapping your batteries,something to consider anyway.
Regarding your shocks.This will be the spikes they just prefer to go via you when you become part off the circuit and you will need a scope to see them but not to feel them ..I have only been shocked when i was pulsing a transformer with the output so lidmotors coil sounds like a good choice.The fact that you can actually get a shock from your output is a good thing as like you suspected you will be generating large spikes and this brings us back to sulphation as from what you say i think your motor will be good for recovering old sulphated batteries,your new one's won't be to affected by this yet so your not getting the full benefit from the spikes, i personally would be trying to charge an old car or drill battery which has sat in a draw for a year.
If i can be off any more help just ask Bill as we are all in this together.
                                                                                        Regards jonnydavro

[Pirate88179]

@ Jonny:

Thank you for the information.  That is exactly what I needed to know.  I am at about 13.5 today so far on the charge battery so I will be switching them soon.

Yes, I have seen some great work on the switching circuit used by Daftman...excellent work.  In the future, I will probably try to do that as well.  I do have some old batteries from a cordless drill that only hold their charge for about 3 minutes or so which makes them near useless in the drill so maybe I can try reconditioning them on my Bedini and see what happens.  They really can't get any worse, ha ha.  I will keep a close eye on them while doing so as they may like the charging or they may not.

Thanks again Jonny.

Bill

[Thaelin]

 Pirate:
   If thoes batteries are Nickle-hydride or L-ion, I would be very careful. I did a set of Nimhi in that way.
I had to take them outside for fear they would explode on me. They are very finiky on how they charge.
Nicads do well with  bedini.

thaelin

[Pirate88179]

Pirate:
   If thoes batteries are Nickle-hydride or L-ion, I would be very careful. I did a set of Nimhi in that way.
I had to take them outside for fear they would explode on me. They are very finiky on how they charge.
Nicads do well with  bedini.

thaelin

Thanks.  Yes I have read the same thing in several places.  I have not pulled them out of the drill yet but that is good advice to try it outside anyway.  Its not like we need an extension cord right? Ha ha.

Good news...I just pulled one out and they are Nicads.  They are very old and just about worn out so I may do it outside just to be on the safe side.  Thanks for mentioning this.  Safety is important.

Bill