That is pretty typical. The silliest thing you can do is to put all kinds of sulfates into batteries in the hope of resolving an issue. Urban myth will never ever pass away. Pencil lead can contain some odd compounds in addition to carbon (how do you recondition a car battery). There are lots of carbon powder makers. Vehicle tires have to do with 50% carbon.
Does not cost an arm and a leg. Afdhal- I get cadmium from utilized NiCd cells-aaa or aa sizes- such as discovered in solar garden lights- after a few years they are tossed out as NiCd is worn- merely cut around top crimp with hacksaw, unwind s/s case with cutter, withdraw contents- external foil is cadmium, inner foil is nickel, & some strong electrolyte & seperator- all wound in spiral pattern.
To get Cadmium Sulphate, boil up some electrolyte- drop cadmium in- will bubble up & release poisonous fumes- do outdoors -do not breathe vapours!!! When cadmium is entirely dissolved( & sometimes the electrolyte cadmium mix is a lovely green, depending on quality of cadmium from cell maker!)- task done! Got ta say- the mix I have included to batt cells does not seem to assist! In truth- I got ta state the ONLY thing I utilized that worked was INOX MX2( in 1 batt up until now- I will get some more MX2 &try; & shot; in other batts to confirm yes or no! Apart from that, the other thing is that the batt itself must be only lightly sulfated).
Still it is great at determining o/c cell/s in batt- pulses go up greater with degree of o/c! have seen 1250 volts! Cut open, & broke down pos grid! in 1 cell-others nearly so!. how to recondition an old battery. Bevan - I would suggest improving the cadmium by making the cadmium you recuperated from the NiCds the favorable in an electroplating cell.
Use a tin wire or solder wire unfavorable. Source of power can be 12V battery. Place 220 ohm series resistor. The cadmium that gets plated onto the negative will be dendritic and pure. The real voltage throughout the electroplating cell will be under 0. how to restore a dead battery car. 5V. The green you describe would be nickel contamination.
Bevan - That's imaginative! Why didn't I consider that before? I will attempt it. John - You're one clever gentleman, thanks for the information. Bevan - I believe I might have at long last managed to determine what cadmium sulfate does. It absolutely electroplates out onto the negative grid metal when the battery is intentionally pushed into regulated overcharge.
This assists the lead sulfate nearest the grids to become active once again and to be transformed into lead and sulfate ions. Repeated charging, releasing spreads the conductive environment slowly and gradually into the bulk of the lead sulfate. The process seems to have a limitation. auto battery reconditioning. It would appear the secret to attaining 100% desulfation is to figure out how to get conduction to spread out into 100% of the sulfate.
Adding gradually more simply develops dendrites and causes shorts. The explanations provided by desulation merchants that insoluble sulfation inevitably coats the plates when batteries are utilized and that their treatment strips it away is pure fantasy. The sulfate stays right where it is. It is converted. While both favorable and unfavorable plates can end up being sulfated, the positive sulfation merely reverses when the battery is charged.
John - If I comprehend you correctly, did you meant all the cadmium does is electroplating itself on the negative grid?If so, would not just copper is great enough? Afdhal- it is simply John's theory- but i would state cadmium does not simply plate itself- needs driving- so does copper- BUT copper is a non laster in H2SO4! As are most metals! Lead lasts longer than a lot of! Afdhal - No, copper and copper sulfate are not ideal.
Cadmium has an electrochemical potential of -0. 4030V. Lead has an electrochemical capacity of -0. 1262V. The electrochemical potential of cadmium is such that it prevents electroplating when a battery is standing. It is only when a battery is placed on gassing charge that the voltage at the unfavorable plate favors electroplating.
Copper has an electrochemical possible Cu of +0. 5210V and Cu2 of +0. 3419V. Copper will simply plate onto the negatives regardless and remain there, triggering the plates to gas and to self discharge and to sulfate. The electrochemical capacities of aluminum, magnesium, potassium, salt, and so on are all far to unfavorable, the metals far too reactive in battery acid, for anything of benefit to take place.
Bevan - It is not a theory. I ran the experiments. Built lead-acid cells in glass jars. I observed and determined (how do you recondition a dead battery). John- to my understanding, what you have actually done is an experiment- then forwarded an hypothesis to what you observed- then you advanced a theory- NOW-as to that theory to become REALITY- your findings MUST be reproduced by other like minded individuals- can't see that happening simply yet- still, there is hope.
Bevan - I personally could not care less what individuals suggest about sulfation. I ran an experiment created to respond to yes or no, whether batteries can be desulfated. My experiment showed that a person might get a quarter to a 3rd short-term healing. I would not explain that as a "yes".
Others can easily duplicate my expermiment. Humanity being what it is, some people so dislike an ugly truth getting in the method of a stunning story, their counter arguments will constantly be in words, not deeds. The litmus test: Desulfation remains a struggling industry. Something is not ideal. There is no conspiracy.
If you want batteries to last longer, deal with them, assist them while they are still serviceable, do not fuss over them after they "signed off". We don't feed medication to dead individuals. Why do it to batteries? The experiment is described on "CAN BATTERIES BE BROUGHT BACK". Well, anyone can say what they desire about sulfation or desulfation, however including Epsom salt (option= 8 teaspoonfuls Epsom salts dissolved in 1 pint pure water) coupled with a 3 day drip charge assisted my truck battery keep a better charge.
The battery performed well through the winter after my treatment and is still going strong! I do not understand how much longer it will live, but I will let you know when it lastly dies. Adios Shadmin - The portion of the 1 pint of water that you managed to put into the battery assisted; the three days extra trickle charge assisted; the Epsom salts satisfied your belief - recondition 12 volt battery.
ALL the so-called solutions incl epson, alum, cadmium, etc, etc, etc ad infinitum not do anything!!! But typically harm!! What numerous posters like to think is that THEIR!!! treatment made a distinction!! BUT neglect all the other parameters of battery action incl temp, humidity etc in their attempt to understand a complex subject!! (recondition car battery for sale). The bare reality is that all automotive charge systems do not totally charge the l/a starter batt- however just around 14v- for a number of different factors.
Bevan - Where does the acid that raised your SG originated from? John- just returned on line after week after altering ISP!!! The increased sg is because of the dollop in the 15 ml added of Inox Mx2 to each cell! IT certainly is NOT due to decreasing sulfation & therefore raising sg!. recondition a car battery.