That is quite typical. 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 pass away. Pencil lead can contain some unusual substances in addition to carbon (how to recondition a 12v battery). There are a lot of carbon powder producers. 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 couple of years they are thrown away as NiCd is broken- merely cut around leading crimp with hacksaw, unwind s/s case with cutter, withdraw contents- outer foil is cadmium, inner foil is nickel, & some strong electrolyte & seperator- all wound in spiral pattern.
To obtain Cadmium Sulphate, boil up some electrolyte- drop cadmium in- will bubble up & emit poisonous fumes- do outdoors -do not breathe vapours!!! When cadmium is totally liquified( & often 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 actually contributed to batt cells does not seem to assist! In reality- I got ta say the ONLY thing I utilized that worked was INOX MX2( in 1 batt so far- 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 just lightly sulfated).
Still it is excellent at identifying o/c cell/s in batt- pulses increase higher with degree of o/c! have actually seen 1250 volts! Cut open, & broke down pos grid! in 1 cell-others practically so!. materials needed to recondition car battery. Bevan - I would recommend refining the cadmium by making the cadmium you recuperated from the NiCds the positive in an electroplating cell.
Use a tin wire or solder wire negative. Source of power can be 12V battery. Insert 220 ohm series resistor. The cadmium that gets plated onto the unfavorable will be dendritic and pure. The real voltage throughout the electroplating cell will be under 0. recondition 12 volt battery. 5V. The green you explain would be nickel contamination.
Bevan - That's innovative! Why didn't I consider that before? I will attempt it. John - You're one clever gentleman, thanks for the info. Bevan - I think I might have at long last managed to figure out what cadmium sulfate does. It certainly electroplates out onto the negative grid metal when the battery is deliberately pressed into regulated overcharge.
This helps the lead sulfate nearest the grids to end up being active once again and to be converted into lead and sulfate ions. Repeated charging, discharging spreads the conductive environment gradually and progressively into the bulk of the lead sulfate. The process seems to have a limitation. how to restore a car battery. It would appear the secret to achieving 100% desulfation is to find out how to get conduction to spread into 100% of the sulfate.
Adding progressively more just creates dendrites and triggers shorts. The explanations provided by desulation merchants that insoluble sulfation undoubtedly coats the plates when batteries are used which their treatment strips it away is pure fantasy. The sulfate remains right where it is. It is transformed. While both favorable and unfavorable plates can become sulfated, the favorable sulfation merely reverses when the battery is charged.
John - If I understand you properly, did you implied all the cadmium does is electroplating itself on the negative grid?If so, would not just copper suffices? Afdhal- it is simply John's theory- but 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 a lot of! Afdhal - No, copper and copper sulfate are not appropriate.
Cadmium has an electrochemical potential of -0. 4030V. Lead has an electrochemical capacity of -0. 1262V. The electrochemical capacity of cadmium is such that it avoids 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 possible Cu of +0. 5210V and Cu2 of +0. 3419V. Copper will merely plate onto the negatives regardless and remain there, triggering the plates to gas and to self discharge and to sulfate. The electrochemical potentials of aluminum, magnesium, potassium, sodium, etc. 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. Developed lead-acid cells in glass containers. I observed and measured (how to recondition any 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 REALITY- your findings MUST be replicated by other like minded persons- can't see that occurring right now- still, there is hope.
Bevan - I personally might not care less what individuals opine about sulfation. I ran an experiment created to respond to yes or no, whether batteries can be desulfated. My experiment revealed that a person might get a quarter to a third short-term recovery. I would not explain that as a "yes".
Others can quickly duplicate my expermiment. Humanity being what it is, some people so do not like an unsightly truth getting in the method of a lovely 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 desire batteries to last longer, deal with them, assist them while they are still serviceable, 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 explained on "CAN BATTERIES BE BROUGHT BACK". Well, anybody can say what they want about sulfation or desulfation, however adding Epsom salt (solution= 8 teaspoonfuls Epsom salts liquified in 1 pint distilled water) paired with a 3 day drip charge helped my truck battery maintain a much better charge.
The battery carried out well through the winter after my treatment and is still going strong! I do not know just how much longer it will live, but I will let you know when it lastly passes away. Adios Shadmin - The portion of the 1 pint of water that you handled to take into the battery helped; the three days extra trickle charge helped; the Epsom salts pleased your belief - recondition dead battery.
ALL the so-called remedies incl epson, alum, cadmium, etc, etc, etc advertisement infinitum not do anything!!! However generally harm!! What numerous posters like to think is that THEIR!!! treatment made a difference!! BUT neglect all the other criteria of battery reaction incl temperature, humidity etc in their attempt to make sense of a complicated subject!! (reconditioning a battery). The bare reality is that all vehicle charge systems do not completely charge the l/a starter batt- but just around 14v- for numerous different reasons.
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 certainly is NOT due to reducing sulfation & hence raising sg!. how to recondition a battery at home.