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That is pretty typical. The silliest thing you can do is to put all kinds of sulfates into batteries in the hope of solving an issue. Urban myth will never die. Pencil lead can contain some weird compounds in addition to carbon (recondition old battery). There are lots of carbon powder manufacturers. Automobile tires are about 50% carbon.
Does not cost an arm and a leg. Afdhal- I get cadmium from used NiCd cells-aaa or aa sizes- such as found in solar garden lights- after a few years they are thrown away as NiCd is broken- merely cut around top crimp with hacksaw, unravel 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 acquire Cadmium Sulphate, boil up some electrolyte- drop cadmium in- will bubble up & emit toxic fumes- do outdoors -do not breathe vapours!!! When cadmium is totally dissolved( & often the electrolyte cadmium mix is a beautiful green, depending on quality of cadmium from cell maker!)- task done! Got ta state- the mix I have contributed to batt cells does not appear to assist! In reality- 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; & try; in other batts to verify yes or no! Apart from that, the other thing is that the batt itself should be only gently sulfated).
Still it is proficient at determining o/c cell/s in batt- pulses go up greater with degree of o/c! have actually seen 1250 volts! Cut open, & broke down pos grid! in 1 cell-others practically so!. how to recondition any battery. Bevan - I would recommend refining the cadmium by making the cadmium you recovered from the NiCds the favorable in an electroplating cell.
Utilize a tin wire or solder wire unfavorable. Power source can be 12V battery. Place 220 ohm series resistor. The cadmium that gets plated onto the unfavorable will be dendritic and pure. The real voltage across the electroplating cell will be under 0. reconditioning a 12 volt truck battery. 5V. The green you explain would be nickel contamination.
Bevan - That's imaginative! Why didn't I think about that before? I will try it. John - You're one smart gentleman, thanks for the info. Bevan - I think I might have at long last managed to figure out what cadmium sulfate does. It absolutely electroplates out onto the negative grid metal when the battery is deliberately pressed into controlled overcharge.
This assists the lead sulfate nearest the grids to end up being active once again and to be transformed into lead and sulfate ions. Duplicated charging, releasing spreads the conductive environment slowly and progressively into the bulk of the lead sulfate. The procedure appears to have a limit. recondition dead battery. It would appear the secret to achieving 100% desulfation is to find out how to get conduction to spread out into 100% of the sulfate.
Including progressively more merely produces dendrites and causes shorts. The descriptions provided by desulation merchants that insoluble sulfation undoubtedly coats the plates when batteries are utilized and that their treatment strips it away is pure fantasy. The sulfate remains right where it is. It is transformed. While both positive and negative plates can become sulfated, the favorable sulfation simply reverses when the battery is charged.
John - If I understand you properly, did you implied all the cadmium does is electroplating itself on the unfavorable grid?If so, wouldn't just copper is excellent enough? Afdhal- it is just John's theory- but i would say cadmium does not simply plate itself- requirements driving- so does copper- BUT copper is a non laster in H2SO4! As are most metals! Lead lasts longer than many! Afdhal - No, copper and copper sulfate are not suitable.
Cadmium has an electrochemical capacity of -0. 4030V. Lead has an electrochemical capacity of -0. 1262V. The electrochemical capacity of cadmium is such that it prevents electroplating when a battery is standing. It is only when a battery is put on gassing charge that the voltage at the negative plate prefers electroplating.
Copper has an electrochemical potential Cu of +0. 5210V and Cu2 of +0. 3419V. Copper will merely plate onto the negatives regardless and remain there, causing the plates to gas and to self discharge and to sulfate. The electrochemical potentials 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 happen.
Bevan - It is not a theory. I ran the experiments. Developed lead-acid cells in glass jars. I observed and determined (is it okay to recondition a car battery with it still connected). 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 taking place right now- still, there is hope.
Bevan - I personally could not care less what individuals opine about sulfation. I ran an experiment developed to address yes or no, whether batteries can be desulfated. My experiment showed that one might get a quarter to a third short-term healing. I would not explain that as a "yes".
Others can quickly duplicate my expermiment. Human nature being what it is, some people so dislike an awful truth obstructing of a lovely story, their counter arguments will constantly be in words, not deeds. The base test: Desulfation remains a struggling market. Something is wrong. There is no conspiracy.
If you desire batteries to last longer, deal with them, help them while they are still functional, do not fuss over them after they "signed off". We do not feed medicine to dead people. Why do it to batteries? The experiment is described on "CAN BATTERIES BE BROUGHT BACK". Well, anyone can say what they want about sulfation or desulfation, however adding Epsom salt (service= 8 teaspoonfuls Epsom salts dissolved in 1 pint pure water) paired with a 3 day trickle charge helped my truck battery keep a much better charge.
The battery performed well through the winter season after my treatment and is still going strong! I don't know how much longer it will live, but I will let you know when it finally passes away. Adios Shadmin - The portion of the 1 pint of water that you managed to put into the battery helped; the three days extra trickle charge assisted; the Epsom salts pleased your belief - car battery reconditioning.
ALL the so-called treatments incl epson, alum, cadmium, etc, etc, etc ad infinitum do ABSOLUTELY NOTHING!!! But normally hurt!! What many posters like to believe is that THEIR!!! treatment made a distinction!! BUT neglect all the other specifications of battery action incl temp, humidity etc in their effort to understand a complicated subject!! (recondition 12 volt battery). The bare reality is that all automobile charge systems do not completely charge the l/a starter batt- however just around 14v- for several various reasons.
Bevan - Where does the acid that raised your SG originated from? John- simply got back on line after week after altering ISP!!! The increased sg is due to the dollop in the 15 ml added of Inox Mx2 to each cell! IT definitely is NOT due to decreasing sulfation & thus raising sg!. how to recondition a 12v battery.
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How Do You Recondition A Battery
How To Recondition A 12 Volt Battery