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That is quite common. The silliest thing you can do is to put all type of sulfates into batteries in the hope of resolving a problem. Urban legends will never die. Pencil lead can include some weird substances in addition to carbon (recondition battery guide). There are a lot of carbon powder manufacturers. Cars and truck tyres have to do with 50% carbon.
Does not cost an arm and a leg. Afdhal- I get cadmium from used 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- just cut around top crimp with hacksaw, unwind s/s case with cutter, withdraw contents- outer foil is cadmium, inner foil is nickel, & some strong electrolyte & seperator- all injury in spiral pattern.
To acquire Cadmium Sulphate, boil up some electrolyte- drop cadmium in- will bubble up & emit harmful fumes- do outdoors -do not breathe vapours!!! When cadmium is entirely dissolved( & sometimes the electrolyte cadmium mix is a lovely green, depending upon quality of cadmium from cell maker!)- job done! Got ta state- the mix I have actually contributed to batt cells does not seem to help! In fact- I got ta state the ONLY thing I used that worked was INOX MX2( in 1 batt so far- I will get some more MX2 &try; & try; in other batts to confirm yes or no! Apart from that, the other thing is that the batt itself should be only lightly sulfated).
Still it is proficient at determining o/c cell/s in batt- pulses go up higher with degree of o/c! have actually seen 1250 volts! Cut open, & disintegrated pos grid! in 1 cell-others practically so!. recondition battery. Bevan - I would suggest improving the cadmium by making the cadmium you recovered from the NiCds the favorable in an electroplating cell.
Use a tin wire or solder wire negative. Power source can be 12V battery. Place 220 ohm series resistor. The cadmium that gets plated onto the negative will be dendritic and pure. The actual voltage throughout the electroplating cell will be under 0. what is in battery reconditioning solution. 5V. The green you describe would be nickel contamination.
Bevan - That's imaginative! Why didn't I think about that before? I will attempt it. John - You're one smart gentleman, thanks for the details. Bevan - I believe I might have at long last handled to figure out what cadmium sulfate does. It absolutely electroplates out onto the negative grid metal when the battery is intentionally pushed into controlled overcharge.
This helps the lead sulfate nearest the grids to end up being active again and to be transformed into lead and sulfate ions. Repeated charging, releasing spreads the conductive environment slowly and progressively into the bulk of the lead sulfate. The process appears to have a limit. how to recondition a 12v battery. It would appear the trick to achieving 100% desulfation is to determine how to get conduction to spread out into 100% of the sulfate.
Adding progressively more just develops dendrites and causes shorts. The descriptions given by desulation merchants that insoluble sulfation undoubtedly coats the plates when batteries are used which their treatment strips it away is pure dream. The sulfate stays right where it is. It is transformed. While both positive and negative plates can end up being sulfated, the positive sulfation just 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 great enough? Afdhal- it is just John's theory- but i would say 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 many! Afdhal - No, copper and copper sulfate are not ideal.
Cadmium has an electrochemical potential of -0. 4030V. Lead has an electrochemical potential 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 prospective Cu of +0. 5210V and Cu2 of +0. 3419V. Copper will simply 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, sodium, and so on are all far to unfavorable, the metals far too reactive in battery acid, for anything of advantage to occur.
Bevan - It is not a theory. I ran the experiments. Built lead-acid cells in glass jars. I observed and determined (how to recondition a dead car battery). John- to my understanding, what you have 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 replicated by other like minded persons- can't see that occurring just yet- still, there is hope.
Bevan - I personally might not care less what individuals suggest about sulfation. I ran an experiment developed to answer yes or no, whether batteries can be desulfated. My experiment revealed that a person might get a quarter to a 3rd short-term healing. I would not describe that as a "yes".
Others can quickly duplicate my expermiment. Humanity being what it is, some individuals so dislike an awful fact getting in the method of a gorgeous story, their counter arguments will always remain in words, not deeds. The litmus test: Desulfation remains a having a hard time market. Something is not right. There is no conspiracy.
If you want batteries to last longer, work on them, assist them while they are still functional, don't fuss over them after they "signed off". We do not feed medicine to dead individuals. Why do it to batteries? The experiment is explained on "CAN BATTERIES BE RESTORED". Well, anyone can state what they want about sulfation or desulfation, however including Epsom salt (option= 8 teaspoonfuls Epsom salts liquified in 1 pint pure water) combined with a 3 day drip charge helped my truck battery retain a better charge.
The battery carried out well through the winter season after my treatment and is still going strong! I don't understand how much longer it will live, but I will let you know when it finally dies. Adios Shadmin - The part of the 1 pint of water that you managed to put into the battery assisted; the 3 days additional drip charge assisted; the Epsom salts satisfied your belief - battery reconditioning equipment.
ALL the so-called remedies incl epson, alum, cadmium, etc, etc, etc ad infinitum not do anything!!! But usually damage!! What lots of posters like to believe is that THEIR!!! treatment made a distinction!! BUT overlook all the other criteria 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- but only around 14v- for several 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 due to the dollop in the 15 ml added of Inox Mx2 to each cell! IT absolutely is NOT due to decreasing sulfation & therefore raising sg!. how to recondition an old battery.
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How Do You Recondition A Battery
How To Recondition A 12 Volt Battery