Stingo Solid State Battery Charger

[Guruji]

good harmony to you Guruji,
I thank you for helping me.

With regard to the circuit yourself exposed, I noticed that there is a potentiometer 500k of which do not have available to me as those from 100K.
It may be fine to use the 100K potentiometer in this circuit by you proposed?

For the single-wire coil, not knowing the value in ohms for calculating the number of turns of wire in the toroid, how many turns are useful for this toroid in shape with the wire 29.52 feet long by 24 or 25 AWG diameter?

From what I understood, in relation to the components described above, then the batteries are good for those acid 12 volt -70 ah?

We thank you again,
good things to all of us

Maurizio

Yes 100k pot is fine. Sorry about coil number of turns cause Sucahyo said that it should be that resistance regarding toroid. So in turns I cannot tell you cause resistance defers with gauge wire.
Yes this circuit can be used on any type of batteries except computer battery type cause those can explode with pulse charging.

[animacosmica]

Hi animacosmica very nice nickname csmicsoul Io non parla molta italiano poco. Sono di Malta.
This is Sucahyo's circuit but I have built this and it works good.
One can use any drive battery cause it amplify voltage.
For 12v batteries you have to check if it's charging for driving the circuit.
Core winding should be about 1 to 2ohm.
I posted the one that Sucahyo used for battery charging.

good harmony to you Guruji,
I thank you for helping me.

With regard to the circuit yourself exposed, I noticed that there is a potentiometer 500k of which do not have available to me as those from 100K.
It may be fine to use the 100K potentiometer in this circuit by you proposed?

For the single-wire coil, not knowing the value in ohms for calculating the number of turns of wire in the toroid, how many turns are useful for this toroid in shape with the wire 29.52 feet long by 24 or 25 AWG diameter?

From what I understood, in relation to the components described above, then the batteries are good for those acid 12 volt -70 ah?

We thank you again,
good things to all of us

Maurizio

[Guruji]

[ATTACH]13205[/ATTACH]


Maurizio
my website associative
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Hi animacosmica very nice nickname csmicsoul Io non parla molta italiano poco. Sono di Malta.
This is Sucahyo's circuit but I have built this and it works good.
One can use any drive battery cause it amplify voltage.
For 12v batteries you have to check if it's charging for driving the circuit.
Core winding should be about 1 to 2ohm.
I posted the one that Sucahyo used for battery charging.

[animacosmica]

Maurizio
my website associative

[Guruji]

I recently thought that I forget something important when I use cap at the diode to the coil for the FWBR combiner. I now rememberred that the cap will prevent the difference of potential of one coil to the other from charging the battery.

So now I use the cap only on the diode to the source battery positive. This allow the potential difference of one coil to the other to charge the battery too. Since three stingo may always run at difference frequency, the voltage of each coil will be different. Imagine if one reach positive spike while other is at negative spike bouncing then the updated circuit will allow this voltage difference to charge the battery

Maybe just my imagination but I notice much faster charging speed with same circuit.


WIth three stingo that consume 800mA, 7Ah 12V gel battery charged at 15V when full. This is done on 4 good battery with same results.

Hi Sucahyo does this update apply to one stingo too about the cap?
Thanks

[topperos]

Stingo -air or ferrite core

Hi Sucahyo,

I know that no one wrote here for half of year, i built ure circuit and it works good i have with toroid 0,5mm thick wire and 1.9 ohm resistance about 47 percent of COP. I wonder if the air core wouldnt be better at stingo?

Topper

[Harvester]

ok, build another one of these circuits and it works again.
i guess one of the components got fried in the last test.

this time i stuck to a 12V power supply, choosing 0.85A input for circuit.

i was really, really amazed with this circuit on a totally dead, as in dead since 1997, 6V SLA battery, showing 0.01V.
after three days of charging for about 4-5h a day, the battery now has a voltage of 6.77V!!!!! - leaving over night before measuring.

i do not have a 6V consumer any more, so i hooked up a small 12V light bulb.
the light is dim and the voltage drops to 6.54V, reducing by 0.01V every 5 sec or so.
when disconnecting bulb again, voltage goes back up above 6.70V.
I will discharge at C20 and cycle it again a couple of time, but it is looking good so far.

the effect on the old 12V SLA is still the same though.
it starts charging with 13.89V and after 1h the charge is at 7.34V.
This battery has only been removed from a UPS about 5 months ago.
very odd.

[Harvester]

Hi,

here are the pics.
The toroid has a diameter of 50mm (2") and it was wound with ~30m of AWG30.

Power supply used was a notebook power supply 19V, 4.4A.
Charging a dead 12V battery (~0.3V) started at ~40V and input current was
chosen at 1A.
After dinner, there was no more squealing and the pictures show the rest.

I have taken a larger toroid (100mm - 4") and retested - staying in vicinity.
After about 3/4 hour the squealing changed frequency and the charge
voltage went down to 0.7V by itself.
For some reason the charge voltage will not increase above battery voltage(12V) any more. It is around 5-7V.
Nothing ever got hot, only warm to the touch.
What is happening here?

When trying to use the 1 ohm resistor instead of battery and trying to adjust
to 1V output, I cannot get past 0.34V. As soon as I try and increase more,
the voltage reading drops to 0V.
Any idea what this could be?
Using TIP2944, TIP 3055, cap = 1mf 250V

PS. what is the latest circuit diagram used?

[Guruji]

Stingo to a 6v solar

Yes this is a good and efficient circuit to charge batteries. I've build a small 6v solar panel to charge my Bike battery cause I had problems in starting and it's charging the battery very well thanks to Sucahyo.
Thanks

[Harvester]

latest circuit?

hi,

have seen tonnes of circuits in the last couple of days, reading this thread and am wandering what the latest would be to charge 12V lead acid batteries?

Have tried one version

http://www.energeticforum.com/renewable-energy/6462-stingo-solid-state-battery-charger-6.html#post116258

and was pretty impressed, as it squealed nicely right away.
i think i was overdoing it a bit though, as i had a little accident.
the toroid melted right through my plastic parts box
will report on it later when i get the pictures off the camera.

@Sucahyo
nice and simple little circuit, thank you !!

cheers
Harvester

[Hajame]

Not h-pulse

Hi sucahyo,

I have built two Stingo circuits using same components but different layout. Both can get 50-60% conventional efficiency, but one of them does not produce correct h-pulse. Its pulse shape is just plane shark fin like (Sorry, my scope has its backlight failed). It can still work with 12V battery source and outputs 350mA with 600mA input.

According to Bedini, h-pulse is the key to battery conditioning. What if a battery is charged by incorrect pulses but still have its capacity filled? Is there anything we should pay attention with the layout?

[sucahyo]

Is there a reason you couldn't wire together both primary and secondary windings in a transformer type coil setup to make it one bigger more powerful coil? Can the fields generated cancel each other?

Shorting the HV part is safer.

Paralleling both may reduce output power and I never notice increase. Using them in series will surely reduce output because output is in inverse with the coil impedance. More coil impedance = less output.

Powerfull coil = low impedance and high inductance, maybe low capacitance.

[sampojo]

Following up on the coil spec

From 7imix post 585

To get started with stingo, try breaking apart a "wall wart" transformer and using this as the coil. Drive the secondary (finer wire, more windings)

and

Another thing to try is finding the biggest ferrite toroid you can find and winding as many windings as you can of 22, 24, or 26 gauge wire around the toroid

Quite a difference in architecture between a transformer type coil to a toroid but happy to hear either can work. I would suspect a toroid is better...

Is there a reason you couldn't wire together both primary and secondary windings in a transformer type coil setup to make it one bigger more powerful coil? Can the fields generated cancel each other?

[sucahyo]

Congratulation skaght .

You may need to check the voltage of each the AA alkaline. Digicam use voltage for charge level. If the voltage is too low, the digicam consider it empty. Don't overcook the alkaline or you may make it leak. Once it leak, don't use it or it may corrode the digicam battery contact.

[skaght]

Battery revitalized...

So I used a stingo to try and resurrect an old nicad for my cordless powerdrill. The battery is working considerably better with each charging! Originally the battery would hold the charge for 30s to 1 min. Now I've actually used it to drill through some copper plating that took a couple minutes and there's still charge left over.

So I turned to a pair of AA alkaline batteries and recharged them next. They were slow in charging the first time. They appear to put out a solid current, but my digital camera doesn't seem to think they're charged and shuts off with a low battery warning. I tested current output and they are still charged. It seems like the camera can't see the power in them.