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Author Topic: 12V 60A car battery , maybe dead?  (Read 186345 times)

Offline tonyben25

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Re: 12V 60A car battery , maybe dead?
« Reply #75 on: January 16, 2012, 01:40:18 PM »
hello
 @ Groungloop
 
 This is my first post although i have always followed the development in this forum.
 I will like to ask, did you at any time measure the frequency of oscillation of your circuit? i will appreciate if you can give the frequency of air core design and the ferrite core design.
 I thinking the higher the frequency the better the charger abilty to desulphate. Correct me if  i am wrong.
 
 

Free Energy | searching for free energy and discussing free energy

Re: 12V 60A car battery , maybe dead?
« Reply #75 on: January 16, 2012, 01:40:18 PM »

Offline Groundloop

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Re: 12V 60A car battery , maybe dead?
« Reply #76 on: February 25, 2012, 07:54:10 AM »
hello
 @ Groungloop
 
 This is my first post although i have always followed the development in this forum.
 I will like to ask, did you at any time measure the frequency of oscillation of your circuit? i will appreciate if you can give the frequency of air core design and the ferrite core design.
 I thinking the higher the frequency the better the charger abilty to desulphate. Correct me if  i am wrong.

@tonyben25,

I do not have the air core version anymore, but I did measure the Ferrite version today.
The oscillator fundamental frequency is in the high audio range but since the pulses
are "spiky" then there is a lot of RF spectrum up to approx. 5MHz. Attached is a spectrum
plot from 0 to 5Mhz. Sorry for the time it took to answer you question. I never did see this
post until today.

GL.

Offline Bob Smith

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Re: 12V 60A car battery , maybe dead?
« Reply #77 on: February 25, 2012, 02:28:47 PM »
tonyben and Groundloop,
I built mine a few years back with an air core, and was able to get the frequency up to about 20MHz using a potentiometer in place of a resistor. It's been awhile, but I think it was either a 5K or 10K pot. I also swapped out one of the caps - tried a few different ones to get the highest frequency possible.
Bob

Free Energy | searching for free energy and discussing free energy

Re: 12V 60A car battery , maybe dead?
« Reply #77 on: February 25, 2012, 02:28:47 PM »
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Offline Rodelu

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Re: 12V 60A car battery , maybe dead?
« Reply #78 on: March 04, 2013, 10:44:23 AM »
I’ve been looking for a good battery charger/desulfator and I found Groundloop’s circuit called “best_battery_charger_ever”, I built it, tested it, and have to say that it lives up to its name!

Thank you Groundloop for guiding me thru this project via PMs!

The transistor:
 the BUX80 is no longer in production, it can be found on eBay (US) but here in Europe there is no chance to get one. I substituted it for a BU208A (NPN-700V 5A) and works just fine.

The diodes:
BYV29-500 is also hard to find here, so I used BY329 (1000V 8A).

The coil:
Twisting together (evenly) 3 strands of 1mm wire, 75 meters long (each strand) was also a challenge, but after two failed attempts… success!

My first try was with a 12V / 7.2Ah half dead battery, and it came back to life after 5 discharge/charge cycles.

Thank you again Groundloop for this great circuit and all your help in the process of replicating it!!


 Rodelu



Free Energy | searching for free energy and discussing free energy


Offline Groundloop

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Re: 12V 60A car battery , maybe dead?
« Reply #79 on: March 04, 2013, 02:53:24 PM »
Rodelu,

Very nice looking boxed charger! :-) Good job on the build.

What is the digital meter showing?

GL.

Free Energy | searching for free energy and discussing free energy

Re: 12V 60A car battery , maybe dead?
« Reply #79 on: March 04, 2013, 02:53:24 PM »
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Offline totoalas

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Re: 12V 60A car battery , maybe dead?
« Reply #80 on: March 04, 2013, 05:11:06 PM »
Congrats   Rodelu,
I have one myself and same help was given by Groundloop  on this build    great charger   my first one on this forum 2 years ago......
I used a crt toroid and will boxed it up again .... hope you can share the digital meter ckt and indicator light which is missing in my first build...
totoalas
thanks to my mentor   Groundloop

Offline Rodelu

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Re: 12V 60A car battery , maybe dead?
« Reply #81 on: March 05, 2013, 09:23:40 AM »

What is the digital meter showing?

GL.

it is showing amps output

Free Energy | searching for free energy and discussing free energy

Re: 12V 60A car battery , maybe dead?
« Reply #81 on: March 05, 2013, 09:23:40 AM »
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Offline Rodelu

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Re: 12V 60A car battery , maybe dead?
« Reply #82 on: March 05, 2013, 09:29:22 AM »
Congrats   Rodelu,
I have one myself and same help was given by Groundloop  on this build    great charger   my first one on this forum 2 years ago......
I used a crt toroid and will boxed it up again .... hope you can share the digital meter ckt and indicator light which is missing in my first build...
totoalas
thanks to my mentor   Groundloop

Thanks buddy...

yeah, great charger indeed!

Offline Groundloop

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Re: 12V 60A car battery , maybe dead?
« Reply #83 on: March 05, 2013, 09:37:55 AM »
it is showing amps output

Rodelu,

Something ready bought, or your own design?

GL.

Free Energy | searching for free energy and discussing free energy

Re: 12V 60A car battery , maybe dead?
« Reply #83 on: March 05, 2013, 09:37:55 AM »
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Offline Bob Smith

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Re: 12V 60A car battery , maybe dead?
« Reply #85 on: March 05, 2013, 06:01:37 PM »
One of the neat things about GL's charger is the nature of its output. By substituting in a potentiometer for one of the resistors (can't remember now - not much time to look on my lunch), I was able to increase the output spike amplitude through at least 2 levels of harmonics that I could observe on my scope.
 
By hooking the leads up to a transformer, I was able to adjust the resistance until the transformer would hit resonance.
 
I believe GL's charger is harnessing radiant energy through the inductive kickback produced by its sharp transient voltage spikes.  Another interesting thing occured with small DC motors. When hooked up to the output of the charger, they would spin in either cw or ccw direction, depending, I suppose on how the brushes and commutator segments were aligned.  However, I took the shaft of the motor and spun it one way while hooked up the the GL charger, it would run that way, and conversely, if spun in the opposite direction, it would start to run that way as well.
 
In my view, this is more than just a charger. While not necessarily an OU device, it produces some interesting effects.
Bob

Free Energy | searching for free energy and discussing free energy

Re: 12V 60A car battery , maybe dead?
« Reply #85 on: March 05, 2013, 06:01:37 PM »
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Offline zeljkoc

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Re: 12V 60A car battery , maybe dead?
« Reply #86 on: March 09, 2013, 10:14:18 PM »
Groundloop
Sorry about my english.
I have made desulfator according to your post from January 09,2012, with some modifications and it is not working. Instead MJE15003 I used 2N3055 and instead LT7250 four UF5408 connected in parallel.
When I connect battery and power supply desulfator buzz, transistors are warm but battery voltage is anchanged. There is no output current. When I connect battery to a standard charger voltage rise.
Any suggestions?

Offline Groundloop

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Re: 12V 60A car battery , maybe dead?
« Reply #87 on: March 10, 2013, 12:09:47 PM »
Groundloop
Sorry about my english.
I have made desulfator according to your post from January 09,2012, with some modifications and it is not working. Instead MJE15003 I used 2N3055 and instead LT7250 four UF5408 connected in parallel.
When I connect battery and power supply desulfator buzz, transistors are warm but battery voltage is anchanged. There is no output current. When I connect battery to a standard charger voltage rise.
Any suggestions?

Hi zeljkoc,

I do not recommend using the 2N3055 transistor in this circuit. The transistor is slow and does not tolerate
high voltage spikes from the coils. See if you can find any NPN power transistor that can take a higher voltage.
Also always use a heat sink on the transistor. I recommend using one NTE2354 on a heat sink.

Do you have a o-scope? Put a 12 Volt bulb (5-12 Watt) at the output as a load and o-scope to see if the oscillator
is actually running. Try swapping the L1 coil around to get a running oscillator.

Never run this circuit without a load. Always connect load first and then the input power. Have you checked that
your 2N3055 transistors are OK? One can be faulty stopping the oscillator. (If you are using two in parallel.)

The UF5408 diodes you are using is OK to use in this circuit. The UF5408 is rated 3 Ampere so it should be
enough to use one of them at the output.

What is the size (Ampere/Hour) of the battery you are trying to charge?

GL.

Offline Rodelu

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Re: 12V 60A car battery , maybe dead?
« Reply #88 on: March 10, 2013, 06:12:02 PM »
Try swapping the L1 coil around to get a running oscillator.

This happened to me the first time: L1 was connected the wrong way, oscillation did not start and the transistor got quite hot...

Offline zeljkoc

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Re: 12V 60A car battery , maybe dead?
« Reply #89 on: March 10, 2013, 08:51:10 PM »
Hi
I put a heat sink on the transistors.
Can not find NTE2354, but I find that some of BU transistors are alike and I can buy them.
(2508A, 2508AF, 2520D, 2520DF, 2525A what do you think abot them)
I dont have osciloscope.
What does it mean "swapping"?
Transistors 2N3055 are OK. They are not from same manufacturer so they might not be the same quality.
Battery is 12V/6Ah.What is the limit for this carger?

 

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