Radiant Charger for 1.5 - 9 V Batteries

[adversarius]

Hello folks!

I want to build a Radiant Charger that can charge non-rechargeable batteries in the range from 1.5 to 9 Volts. After searching the web and in this forum I was overwhelmed how many circuits there are (Alexkor, Imhotep etc).

What circuit would be most suitable and robust for these needs? Has anyone experience with this charger: How to Build a Radiant Battery Charger - RITALIE.COM?


Regards

Christian

[tachyoncatcher]

Yeah!

What circuit would be most suitable and robust for these needs? Has anyone experience with this charger RITALIE.COM

The ritalie circuit works, but it's not as efficient as imhotep's computer fan. That is the one you want to build for smaller batteries. It's inexpensive and very effective. Also, a great place to start.
Good luck with your build,
Randy

[Parav]

The ritalie circuit works, but it's not as efficient as imhotep's computer fan. That is the one you want to build for smaller batteries. It's inexpensive and very effective. Also, a great place to start.
Good luck with your build,
Randy

Hi Tach and Advers.

Check this out ---Go to Google and just punch in "Joule thief-RE-EMF Charger-by Rene "

I have tried all kinds of batt chargers --but Rene's is awesome.

Paul

[Wistiti]

Re-emf

Im agree with parav,
I built many type of radiant charger and for me the re-emf of Renee is the more effective one i try. I built mine on a ferrite rod insted of ferrite ring... Much easy to wound
With this charger i be able to charge (mean solid charge) from 1.5v aa to 12v car battery.
Enjoy!

[adversarius]

Thank you all for your input.


@ Randy

I have more a solid state device in my mind, because I need no mechanical work to do. What do you think of imhotep's Relay Charger?


@ Parav and Wistiti

Is the re-EMF charger by Rene easily scalable to charge a couple of batteries at the same time?


Regards

[Parav]

Thank you all for your input.


@ Randy

I have more a solid state device in my mind, because I need no mechanical work to do. What do you think of imhotep's Relay Charger?


@ Parav and Wistiti

Is the re-EMF charger by Rene easily scalable to charge a couple of batteries at the same time?


Regards

Hi Adversarius,

That Rene' R circuit is completely solid state - no moving parts.
The Imhotep's relay one is mechanical and the relay will fail eventually.

Remember, for the Rene' R circuit ---all you need is 3--- UF4007 diodes , 1--- 330 ohm resistor, 1 ---1K ohm variable, a toroid with min of 30 turns of bifilar wire , oh, also the 2n3055 transistor.

The toroid can be any size as long as you get min. 30 bifilar turns on it --Also,--the bigger the toroid and the thicker the wire the more amps you'll be able to punch out with it.

As Wistiti stated--you can use a ferrite rod as well which makes it easier to wind-in just a couple of minutes.

I used a 19.5 volt dc power supply form an old HP laptop for this circuit and I have successfully rejuvenated 5 aircraft 12 volt Gill batteries that were destined for the scrap heap.(can't remember the amp hour rating on these batts. as I'm not at home at the moment) These batts. came out of Cessnas and 4 seater Piper Cherokees). I have load tested these batts. and the results I got put a big grin on my face

Also, yes, you can put 3 or 4 batts.or as many as you like , in parallel -but will obviously extend the charge time on them.

It took me about 4 days to cahrge 4 of those aircaft batts. just to give you an idea.

Good luck, Let us know if you need more info.

Paul

[gyula]

Hi Adversarius,

There is one more thing you may notice, besides the good features of Rene's circuit and besides the good experinces the replicators also reported.

It is completely free to learn about it: no need for paying say $20 to see the details. And this free access to it does not reduce any of the good features, you know people tend to treat things as per the price they are sold.

Gyula

[Parav]

Hi Adversarius,

There is one more thing you may notice, besides the good features of Rene's circuit and besides the good experinces the replicators also reported.

It is completely free to learn about it: no need for paying say $20 to see the details. And this free access to it does not reduce any of the good features, you know people tend to treat things as per the price they are sold.

Gyula

Hi Gyula,

I totally agree with you on the Ritalie thing.

It's always a pleasure to see and read your valuable inputs on the various forums here.

Thanks
Paul

[thebanano]

greeting all...
have you ever try the stingo solid state battery? i think it is worthed to try...i am building this thing and able to charge every kind of battery in a solid charge. suprisingly it can oscillate using a wall adaptor . but in my experiment for chargin 1.5 to 9 volt batteries, do not use the wall adaptor, the result always not solid and the battery going to leak fast...
here is the link, to compare the result with others http://www.energeticforum.com/renewa...ghlight=stingo

[tachyoncatcher]

Thank you all for your input.


@ Randy

I have more a solid state device in my mind, because I need no mechanical work to do. What do you think of imhotep's Relay Charger?

Hey @Adversarius,
I agree with @Parav, the relays will fail. I have no experience with the Rene device, but it sounds promising. While mechanical switching gives you the best results, they nearly always fail. The exception is a brush assembly from a dc motor. Of course, that is not an easy build. The imhotep fan motor is a mechanical oscillator. The load (the fan blade) causes an increase in the radiant. If you remove the blades of the fan, you will get higher rpm, but poorer charging. The stressed magnetic field from the mechanical load of the fan seems to cause a greater influx of radiant. There may be some insight from that observation. Regardless of what direction you choose, it's all fun stuff.
Good Luck with your build.
Randy

[adversarius]

BTW, imhotep's domain is down (http://www.imhotepslab.com/), but you can still access his website at: Imhoteps Labs.

Regards

[adversarius]

12 V/DC sufficient?

Rene recommends a 20 V/DC supply in his circuit, but when I only want to charge 1.5-9 Volt batteries a 12 V/DC supply should be sufficient? What do you think?

[Wistiti]

Charging voltage.

For me i use wall adapter because i dont have a variable power supply...
- For a 12v battery i use 19.5v 500ma rate wall adaptor
-For 2 x 1,5v aa in series ,so near 3v,(for rechargable or alkalyne battery) i use 7,5v 200ma wall adaptor

I think twice the voltage of the charging battery its a good range...
Once again testing its the best teacher!

[skaght]

Rene Charger

Has anyone tried to get an efficiency on the Rene Charger? I just built one and I'm shocked. This little thing rocks! I've got a lead acid battery charging completely from 3.6 watts. I'm using ~18 volts input and I've got a smoothing capacitor on the input. I measure current into the cap at 200 milliamps and it appears to be completely charging some lead acid lawn mower batteries in short order. I also switched transistors and it improved the efficiency. The transistor I switched to is discontinued, but I'm sure there's other BJTs out there that might work even better. I've never been able to charge these lead acid batteries with 3.6 watts...

S

[Wistiti]

Improuvement

Hi Skaght!
For me after some test, i have great result with these component:
Transistor 2sc3552
Diodes uf5408
My core are a 6 inch ferrite rod
My bi-filar wire are twist together (litz style) before wound on the ferrite.

Unfortunately, i dont have a scope so i cant see the real voltage spike. But i think we can have a good idea of the voltage spike using a simple multimeter at the output by connecting the + input on the - output while re-emf is running but this will highly increase the amp draw from the source... This way it a bit like "Alexkor radiant charger" chapter 6 PJK book.
I dont know why but the Re-emf give me beter result than the Alexkor.... Right now im tring it with solar panel and it seem a realy good idea!
Enjoy!