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That is pretty common. The silliest thing you can do is to put all sort of sulfates into batteries in the hope of fixing an issue. Urban myth will never ever pass away. Pencil lead can consist of some strange compounds in addition to carbon (battery recondition). There are lots of carbon powder makers. Automobile tires are about 50% carbon.
Does not cost an arm and a leg. Afdhal- I get cadmium from utilized NiCd cells-aaa or aa sizes- such as found in solar garden lights- after a couple of years they are thrown away as NiCd is worn- simply cut around leading crimp with hacksaw, unravel s/s case with cutter, withdraw contents- outer foil is cadmium, inner foil is nickel, & some solid electrolyte & seperator- all injury in spiral pattern.
To obtain Cadmium Sulphate, boil up some electrolyte- drop cadmium in- will bubble up & emit toxic fumes- do outdoors -do not breathe vapours!!! When cadmium is entirely liquified( & often the electrolyte cadmium mix is a lovely green, depending on quality of cadmium from cell maker!)- job done! Got ta say- the mix I have contributed to batt cells does not appear to help! In reality- I got ta say 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 verify yes or no! Apart from that, the other thing is that the batt itself need to be just gently sulfated).
Still it is good at recognizing o/c cell/s in batt- pulses go up higher with degree of o/c! have seen 1250 volts! Cut open, & broke down pos grid! in 1 cell-others nearly so!. reconditioning battery. Bevan - I would recommend improving the cadmium by making the cadmium you recovered from the NiCds the positive 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 across the electroplating cell will be under 0. materials needed to recondition car battery. 5V. The green you explain would be nickel contamination.
Bevan - That's innovative! Why didn't I consider that before? I will try it. John - You're one wise gentleman, thanks for the information. Bevan - I believe I may have at long last handled to determine what cadmium sulfate does. It definitely electroplates out onto the unfavorable grid metal when the battery is deliberately 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, discharging spreads the conductive environment gradually and gradually into the bulk of the lead sulfate. The procedure seems to have a limitation. is it okay to recondition a car battery with it still connected. It would appear the secret to accomplishing 100% desulfation is to figure out how to get conduction to spread into 100% of the sulfate.
Including gradually more just develops dendrites and triggers shorts. The descriptions 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 negative plates can become sulfated, the favorable sulfation merely reverses when the battery is charged.
John - If I understand you correctly, did you implied all the cadmium does is electroplating itself on the negative grid?If so, would not simply copper suffices? Afdhal- it is just John's theory- however i would say cadmium does not just 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 suitable.
Cadmium has an electrochemical capacity 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 negative plate prefers electroplating.
Copper has an electrochemical potential Cu of +0. 5210V and Cu2 of +0. 3419V. Copper will just 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 negative, the metals far too reactive in battery acid, for anything of benefit to occur.
Bevan - It is not a theory. I ran the experiments. Constructed lead-acid cells in glass containers. I observed and determined (how to recondition a car battery). John- to my knowledge, 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 end up being TRUTH- your findings MUST be replicated by other like minded persons- can't see that taking place simply yet- still, there is hope.
Bevan - I personally might not care less what individuals suggest about sulfation. I ran an experiment designed to respond to yes or no, whether batteries can be desulfated. My experiment showed that a person may get a quarter to a third short-term healing. I would not explain that as a "yes".
Others can quickly repeat my expermiment. Humanity being what it is, some individuals so dislike an awful truth obstructing of a beautiful story, their counter arguments will always remain in words, not deeds. The litmus test: Desulfation stays a struggling market. Something is wrong. There is no conspiracy.
If you want batteries to last longer, deal with them, assist them while they are still functional, don't fuss over them after they "signed off". We do not feed medication to dead individuals. Why do it to batteries? The experiment is explained on "CAN BATTERIES BE RESTORED". Well, anybody can say what they want about sulfation or desulfation, but adding Epsom salt (option= 8 teaspoonfuls Epsom salts dissolved in 1 pint pure water) combined with a 3 day trickle charge helped my truck battery maintain a better charge.
The battery carried out well through the winter season after my treatment and is still going strong! I do not know how much longer it will live, but I will let you know when it lastly passes away. Adios Shadmin - The part of the 1 pint of water that you managed to take into the battery assisted; the three days extra drip charge helped; the Epsom salts satisfied your belief - how do you recondition a dead car battery.
ALL the so-called remedies incl epson, alum, cadmium, etc, etc, etc ad infinitum do ABSOLUTELY NOTHING!!! But usually damage!! What many posters like to believe is that THEIR!!! treatment made a difference!! BUT overlook all the other specifications of battery action incl temperature, humidity etc in their effort to make sense of a complex subject!! (how to recondition an old battery). The bare fact is that all automotive charge systems do not completely charge the l/a starter batt- however just around 14v- for several different reasons.
Bevan - Where does the acid that raised your SG come from? John- simply 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 certainly is NOT due to decreasing sulfation & hence raising sg!. how to reconditioning car battery.
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