That is quite common. The silliest thing you can do is to put all kinds of sulfates into batteries in the hope of fixing an issue. Urban myth will never die. Pencil lead can include some unusual substances in addition to carbon (high frequency battery reconditioning). There are lots of carbon powder producers. Car 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 discovered in solar garden lights- after a few years they are thrown out as NiCd is worn- merely cut around leading crimp with hacksaw, decipher 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 & release hazardous fumes- do outside -do not breathe vapours!!! When cadmium is completely liquified( & in some cases the electrolyte cadmium mix is a lovely green, depending upon quality of cadmium from cell maker!)- task done! Got ta state- the mix I have actually included 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 confirm yes or no! Apart from that, the other thing is that the batt itself must be just gently sulfated).
Still it is proficient at recognizing o/c cell/s in batt- pulses increase higher with degree of o/c! have actually seen 1250 volts! Cut open, & disintegrated pos grid! in 1 cell-others practically so!. do i need to charge car battery after battery recondition. Bevan - I would suggest improving the cadmium by making the cadmium you recovered from the NiCds the positive in an electroplating cell.
Utilize a tin wire or solder wire unfavorable. Power source can be 12V battery. Insert 220 ohm series resistor. The cadmium that gets plated onto the unfavorable will be dendritic and pure. The actual voltage throughout the electroplating cell will be under 0. how do you recondition a car battery. 5V. The green you explain would be nickel contamination.
Bevan - That's imaginative! Why didn't I think of that prior to? I will try it. John - You're one clever gentleman, thanks for the details. 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 intentionally pushed into controlled overcharge.
This helps the lead sulfate nearest the grids to end up being active once again and to be transformed into lead and sulfate ions. Repeated charging, releasing spreads the conductive environment gradually and gradually into the bulk of the lead sulfate. The process appears to have a limitation. battery reconditioning. It would appear the secret to achieving 100% desulfation is to determine how to get conduction to spread out into 100% of the sulfate.
Including progressively more just produces dendrites and triggers shorts. The descriptions offered by desulation merchants that insoluble sulfation undoubtedly coats the plates when batteries are utilized which their treatment strips it away is pure dream. The sulfate remains right where it is. It is transformed. While both favorable and unfavorable plates can become sulfated, the positive sulfation just reverses when the battery is charged.
John - If I comprehend you properly, did you indicated all the cadmium does is electroplating itself on the unfavorable grid?If so, would not just copper is good 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 the majority of! Afdhal - No, copper and copper sulfate are not suitable.
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 favors electroplating.
Copper has an electrochemical possible Cu of +0. 5210V and Cu2 of +0. 3419V. Copper will just 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 negative, the metals far too reactive in battery acid, for anything of benefit to happen.
Bevan - It is not a theory. I ran the experiments. Constructed lead-acid cells in glass jars. I observed and determined (reconditioning a 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 end up being TRUTH- your findings MUST be duplicated by other like minded individuals- can't see that happening just yet- still, there is hope.
Bevan - I personally could not care less what people believe about sulfation. I ran an experiment created to address yes or no, whether batteries can be desulfated. My experiment showed that one might get a quarter to a 3rd short-term healing. I would not describe that as a "yes".
Others can easily duplicate my expermiment. Human nature being what it is, some people so do not like an unsightly reality getting in the method of a stunning story, their counter arguments will always be in words, not deeds. The base test: Desulfation remains a having a hard time industry. Something is wrong. There is no conspiracy.
If you desire batteries to last longer, deal with them, assist them while they are still functional, don't fuss over them after they "signed off". We don't feed medicine to dead people. Why do it to batteries? The experiment is described on "CAN BATTERIES BE BROUGHT BACK". Well, anybody can say what they desire about sulfation or desulfation, but including Epsom salt (solution= 8 teaspoonfuls Epsom salts liquified in 1 pint pure water) coupled with a 3 day drip charge helped my truck battery keep a better charge.
The battery carried out well through the winter after my treatment and is still going strong! I don't understand how much longer it will live, however I will let you understand when it lastly passes away. Adios Shadmin - The portion of the 1 pint of water that you managed to take into the battery helped; the 3 days additional trickle charge helped; the Epsom salts pleased your belief - how to recondition a battery at home.
ALL the so-called solutions incl epson, alum, cadmium, etc, etc, etc advertisement infinitum do NOTHING!!! However usually hurt!! What numerous posters like to believe is that THEIR!!! treatment made a distinction!! BUT ignore all the other parameters of battery reaction incl temp, humidity etc in their effort to understand a complex subject!! (12 volt battery reconditioning). The bare fact is that all automotive charge systems do not totally charge the l/a starter batt- however only around 14v- for numerous various reasons.
Bevan - Where does the acid that raised your SG come from? John- just returned on line after week after changing ISP!!! The increased sg is because of the dollop in the 15 ml included of Inox Mx2 to each cell! IT absolutely is NOT due to decreasing sulfation & therefore raising sg!. materials needed to recondition car battery.