Have a look at this.
Normal Alkaline batteries can be recharged,
if you don?t put too much current through it
and don?t leave it longer than 1 hour in the charger.
http://youtube.com/watch?v=UDwMxISYojM
and a simular video from a more funny and overly cautious guy:
http://www.youtube.com/watch?v=rcC8BuFj21Q
Regards, Stefan.
Here are some more videos:
http://youtube.com/watch?v=0Khhrq0hVAI
And the new Sanyo rechargeable battery:
http://www.youtube.com/watch?v=SVnGfMbghjg
Quote from: hartiberlin on March 18, 2008, 09:05:50 PM
...
Normal Alkaline batteries can be recharged,
if you don?t put too much current through it
and don?t leave it longer than 1 hour in the charger.
...
I recharge alkaline batteries for years.
After recharging, the voltage is around 1.2 v instead of 1.5 v when the battery is new.
The capacity is similar to NiCd batteries so it's not too much.
Any type of alkaline batteries are not suitable. With some trademarks the batteries can be recharged only 2 ou 3 times before they die. For others it's much more but always much less than real rechargeable batteries.
Fran?ois
Quote from: hartiberlin on March 18, 2008, 09:05:50 PM
Have a look at this.
Normal Alkaline batteries can be recharged,
if you don?t put too much current through it
and don?t leave it longer than 1 hour in the charger.
http://youtube.com/watch?v=UDwMxISYojM
and a simular video from a more funny and overly cautious guy:
http://www.youtube.com/watch?v=rcC8BuFj21Q
Regards, Stefan.
Yes i do this over years.
some companies sells also 1,5volt rechargarble batteries.
(Germany Comrad abaiut 2000/2002.
Ray o Vac i think from US.
The only problem is, its need an special recharger.
Bateries will leackage or explod if load with normal cahrgers.
If you reconstrucht your charger (zener-diodes or 3x 1n4007) that the voltage can not come over 2,0 to 2,1 volts in the battery, than you can charging this "batteries" without trouble.
Give attention that the batteries will not think under 0,6 volts, SO this way, tey can be charged up to 25 times.
Be happy , with this knowledges.
Pese
P.S.
The batterie industry KNOW this possibility, BUT they are
NOT INTERESTED , that this knowledges will be officially
comes to the consumers.
This is an knowledge that disturbe the buisinesses.
Can you post a schematic for an alkaline battery recharger?
I have a whole box full of dead AA batteries.
Quote from: Feynman on March 19, 2008, 03:22:33 PM
Can you post a schematic for an alkaline battery recharger?
I have a whole box full of dead AA batteries.
use the normal -?pw cost- charger that aur to use for 1,2volts NiCad / or Metalloxyd batteries.
But they are not stabilised to overcharging volts Voltages.
The BiCad rechargable batteries stop to charge at approx 1,45 volts. And will not destroy the battery
with some hours overcharge.
BUT the charger will spend 4 to 5 volts in maximum (without loading batteries connected !
So this is cause that alcalien bateries and also RAY-O-VAC specieal Alkaline rechargable batteries will destroy in this cahrgers BECAUSE they are sensetive to OVERLOAD (in voltages).
They charge from 1,5 volts beginning even up to 2,2 2,5 and higher voltages, BUT they go hot will explode or leacking.
With 3 time 1N4007 (each have 0,7volt Vf)
sot the Voltage can stabilised at aprox 2volts (without batterie in Charger
If connected (between positive and negative pol )(att.: to polarity).
Attention all chargeable batteries (any type) will be loaded with maximum 20% over the normal voltages !
1,2volt wit 1,44 volts
12 volts with 14,4 (example als lead acid , enz)
1,5 volts at 1,8volts enz.
so the alcaline are charged it the voltage arrived 1,8 volts.
to "shild them with 2volt diodes" is an protection for the battery,
if you have not the time to "observe" the charge.
Without this protection , alcalin batteries will die within 1 - 2 hours overloading with more than 2 volts
Have fun with this.
Recharge alltime before batteries are fully empty !!
Pese
Okay, so no schematic...
I think you are telling me to apply a reverse bias voltage at less than 2V ? Is it better if the voltage is continuous or pulsed? If pulsed, is there a proper frequency. Thank you for the information, I am sure this will be very useful. I save all my dead batteries, because I figured there would come a day when we could figure out how to recharge them all.
Quote from: Feynman on March 19, 2008, 08:05:04 PM
Okay, so no schematic...
I think you are telling me to apply a reverse bias voltage at less than 2V ? Is it better if the voltage is continuous or pulsed? If pulsed, is there a proper frequency. Thank you for the information, I am sure this will be very useful. I save all my dead batteries, because I figured there would come a day when we could figure out how to recharge them all.
Is this site of any help?:
http://www.i-hacked.com/content/view/207/44/
Thank you; very much so.
;D
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.afrotechmods.com%2Freallycheap%2Fbatteries%2Fcurrentsource.jpg&hash=cd19593d52da07f0884b0675262885204ba34d98)
QuoteI used the same 63mA current source to charge a pair of dead alkaline AA batteries in series. Since AAs have higher capacity than a 9v, it took all day to fully recharge them.
I discharged them at a current of 330mA for hours, and they still hadn't gone flat. I said screw calculating capacity and decided to call it a fully charged success.
Destructive testing: After two full days of charging the AAs eventually popped open making a fizz noise, and leaked 3 drops of weak acid that was easily cleaned up with my bare hands. The experience was about as life threatening as a squirrel urinating on my lawn. The final measured voltage that killed it was 2.0V, which doesn't surprise me. Charging a 1.5V battery past 1.8V is kinda dumb.
http://www.afrotechmods.com/reallycheap/batteries/batts.htm
Looks like you can do full alkaline AA recharge if you use 63mA and less than 1.8V. I am going to build this too, I have all the parts.
Quote
Summary
You can fully recharge a depleted 9v alkaline battery at 63mA overnight without problems. You can fully recharge a depleted alkaline AA battery all day without problems. I recharged both types of batteries twice, and I would expect them to easily take many more charges. If you care about safety more than I do, attach a multimeter to the batteries and monitor them so they never reach more than 110% of their rated voltage.
Hello,
your circuit is an CURRENT - Source (Limiter)
you must limit the Voltage.
youur cahrging alkaline must in the way from emiter to ground.
the diodes D1- x must chousen so that no nore than
1,8 to 2 volts can be cahrges to the alcaline cell.
The load current , can be limeted with an resistor (or Pot) tgat come between Collector and + suppli.
(in the wy , kow your cicuit shown the batterie now.
If need i will do an circuit by main , and scan this for this thead ,
i think its understanding now.
Pese
thats interesting, i heard this long ago, but then heard nothing more about it. i also think, industrie is not interested.
i have an also interesting fact about batteries:
i also heard, that almost dead lead-gel and lead-acid batteries can be reanimated almost to new state, via several complete load and unload cycles COMBINED WITH positive pulses (appx. stabalized at 20V at 8 kHz in case of 12V batteries) to crack the lead-sulfate-crystals.
afters this reanimation, they act almost as new. excluding batteries which were shorted before and died therefore.
Never tried this by my own, but i heard, that serious companies use that method, to extend lifetime of their electric-vehicles. so also works with heavy and strong car-batteries in continous use.
Hi guys
The Batboostor is (claimed to be) specially designed to recharge Alkaline and Saline batteries (and also rechargeable batteries). ..
Please consult: HTTP://www.alphysis.com/ (HTTP://www.alphysis.com/) from where you can download a notice in English, French, German or Spanish
Best
Maybe this will be helpful for pulse charging ;D
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fimg218.imageshack.us%2Fimg218%2F4155%2F555designdx7.jpg&hash=f53b9cc12886eb9de267d7180514ef54f05a08a7)
http://feynmanslab.blogspot.com/2008/03/555-design.html
Gentleman;
Between 1990 - 95 (I think, getting old....LOL) I used to record late night movies on VHS and watch them later.....one day I happened about a late night infomercial about a battery charger on one of the tapes :o
The device was invented by a professor at McGill university in Montreal (I think, again!) that had a round device with slots that accepted all kinds of normal batteries (transistor/AA/C/D etc.) and would monitor and recharge them and shut them down while continuing to charge the others :o BTW...I found out in 2000 or so while taking to one of my closest friends about it and he seen one of the devices in a local store (Canadian Tire) and it wasn't there for long..... Typical !!!
I never bought the device back then (Kicking myself now....LOL) but anyways here's the kicker...
The inventor showed a scope shot of the charging secret...and guess what????
Short sharp shots...RING A BELL!!!!..... As seen in many projects in this forum and all around the world for the last 100 years or so :)
Telsa said it in many of his patents....Short sharp shots of high voltage and high frequency :o Does wonderful things... Dangerous as it maybe but it's all up to the inventor to take precautions...right?
To make a long story short, you can recharge normal batteries, I've done it with the bedini system while experimenting a few months ago as stated in:
http://www.overunity.com/index.php?action=post;topic=3793.msg67900;quote=67900;sesc=0a290752afbd769aef659e56a5c9af50
I was trying to experiment with the charging side impedance using an 8 x 1.5 V AA batteries @ 12 V setup and was able to use 2 of the freshly charged batteries in the camera until last week!!! Yes it took energy from my source battery to recharge them so no OU there but it did save them from the landfill :D
A while back I did a search for such a device on the web and it's still possible to get one (although not the same model I had seen) but check this one at http://www.theweb2u.com/
It would be interesting to hook up that model to a scope and see what output comes out and what it looks like :) I would bet it's the old Short sharp shots of high voltage and high frequency :)
NOW YOU CAN:
? Save money by recharging batteries and safely extending their useful life
? Keep batteries fresh and ready to provide power
? Lower the amount of batteries entering landfills and their impact on our environment (Not sure about this one if you're using the grid :))
Later guys....keep pickin' at it...someday we'll get it :)
With respect,
Goat
@Goat
Yeah I had that idea immediately after reading the posts here, to use Bedini Solid State Oscillator and try charging Alakaline batteries. But since I have no empty ones (actually have just one AAA, waiting for my girlfriend to finish the other one in her mp3 player ;) ) and then I'll try it on a pair and see what happens...
As for "some day getting it", I hope that day comes sooner than later :D
check out ... http://www.tunecharger.com/
Been using one of these chargers for years. Below is listed one of the nicer effects..
QuoteTunecharger pulse charging has a ?magic? effect of rejuvenating sulphated lead-acid batteries. Regardless of its size, you may attempt rejuvenating a ?dead? battery by hooking it to a Tunecharger for a few hours. Except if the electrolyte is definitely dried or a short-circuit exists between electrodes, you will have the good surprise of viewing its voltage increase to normal. In such case you are advised to discharge it (e.g. into an automotive lamp) and redo hooking to the Tunecharger. Repeat this two or three times, then use a ?regular? charger. The odds is 50% chance of having recycled the battery.
Do not discard your batteries any more without trying - the cost is virtually nothing but some time !
Awesome videos man! Thanks for posting ;)
Matt
Hi,
I been locking into alkaline batteries for a while (especially after learning about NiFe batteries) and how to charged them, but the number of charges appears to be low for a practical use (I have one in mind). It’s a pity, because their energy/weight ratio is good and they’r cheap.
So, I was thinking if it was possible to build a special charger that would avoid the main hazards of recharging these batteries.
Does anybody have any info on what are these hazards?
One of such problems, I guess, would be the buildup of hydrogen; the reduction potential of the zinc ion Zn2+ + 2eâˆ' -> Zn is lower than hydrogen 2H+ + 2eâˆ' ->H2.
Can anybody confirm this or does anybody know any other destructive mechanism?
Thanks,
Ram
Hi guys I tried that circuit of afrotechmods published by feyman with a 12v car battery but the transistor was fried.
There is something wrong with that circuit for alkaline batteries?I tried to charge rechargable batteries not alkaline maybe this was the problem?
Any help please?
Thanks
Hello everyone.
Goat, I believe the charger you are talking about is the Buddy L super charger. I remember seeing the infomercial for it in the mid to late 90's. A quick check on EBay showed a couple of these chargers for sale.
Does someone of you managed to recharge the batteries under the Pyramid ?
I did it and I want to contact people who did the same work in order to improve my technique.
Tigrotto
There are two limitations on recharging alkaline batteries.
The negative electrode is zinc, which becomes zinc oxide as the cell discharges. Upon recharging, the oxide reduces back to metallic zinc, but it tends to deposit as thin dendrites or "whiskers" that grow out from the electrode surface, rather than plating out in a flat layer. These dendrites often manage to reach the positive electrode, shorting out the cell after tens or hundreds of recharging cycles. If the charging current is too high or is continued after all the zinc has been reduced, hydrogen gas may be formed.
The positive electrode contains manganese dioxide, which reduces to a lower oxide as the cell discharges. Upon recharging, some free oxygen may be released, especially at high currents. If the amount is small, it dissolves in the electrolyte, then gets reduced back to water at the negative electrode. If too much is released, it builds up pressure in the cell and makes it burst or leak. Deep discharge makes the problem worse.
Charging with too much current or for too long could produce both hydrogen and oxygen inside the cell, making an explosion hazard.
There have been some recent developments to work around these problems, such as catalysts for the positive electrode, and chemical or mechanical ways to suppress zinc dendrite growth.
Last month I reversed the polarity of a dead 9V so that it produced a negative voltage.
You can achieve this by placing a negative voltage on a dead battery.
PL
ALKALINE cahrcheable Batteries
@all
no problem about explosion or leackage
if you gibe attention to this:
see also::
http://www.overunity.com/index.php?topic=4312.0
example
load an aa cell wilth maximum 200mA (12 hours)
and with an maximum voltage 1.875 volts.
(use voltage limiting diodes for one r more batteries ihat you can load in serie)
the4 best result you have if you not unload les than 25 % of capacity)
Loading current approx. 10 % of nominal capacitity of cell) 12 hours. voltage 1,25 time the normale voltage.(maximum !, obove this, the cell coking ind produce gaz-pressure)
AAA Cells have usually 700mA/h AA 2000mA/h. Capacity
Pese
P.S
I do this now over 10 Years this way.
I use normal battery charger and modify this my-own.
Quote from: viper4297 on December 04, 2008, 09:16:45 PM
Hello everyone.
Goat, I believe the charger you are talking about is the Buddy L super charger. I remember seeing the infomercial for it in the mid to late 90's. A quick check on EBay showed a couple of these chargers for sale.
Thank you viper4297 now I know I wasn't dreaming....LOL
I found some information on this charger at http://www.allaboutbatteries.com/Alkaline-charging.html and apparently it was released too soon and had technical problems...
"the Buddy-L SuperCharger, announced in 1993. Popular Science magazine named it as one of the 100 top scientific achievements of the year. But it did not live up to expectations. Apparently, the product was launched into production too quickly, and sub-standard operation resulted. Fortunately, the problems did not hurt the batteries. The batteries simply switched off prematurely before charging was complete, and the users had to restart the charging process several times"At any rate, I did buy the Battery Xtender and it does work as advertised but the trick is not to drain the alkaline batteries below the 70% charge rate and charge them often, works for me ;D unfortunately getting the kids to do the same is a little tricky ::)
Regards,
Paul
Quote from: hydrocontrol on March 21, 2008, 12:48:14 AM
check out ... http://www.tunecharger.com/
Been using one of these chargers for years. Below is listed one of the nicer effects..
from ;
http://www.tunecharger.com/?cat=1
Sad News Today
Friday February 13th,
we just have learned that our dear and genious friend Jean-Michel Cour has passed away this morning.
Jean-Michel was the genuine inventor and founder of TUNECHARGER, he was also a part of wisdom.
Jean-Michel was always the friend who reconciles, the adviser who pacifies and the hands that cure.
Those who knew him may witness how he restlessly spent his time to make good around him.
Jean-Michel, your place is undoubtedly among the fairest of the fairest.
Have a nice rest, my old dear friend.