That is quite common. The silliest thing you can do is to put all type of sulfates into batteries in the hope of solving a problem. Urban legends will never ever die. Pencil lead can include some strange compounds in addition to carbon (how to restore a dead car battery). There are a lot of carbon powder makers. 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 found in solar garden lights- after a couple of years they are thrown out 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 injury in spiral pattern.
To obtain Cadmium Sulphate, boil up some electrolyte- drop cadmium in- will bubble up & give off toxic fumes- do outside -do not breathe vapours!!! When cadmium is entirely liquified( & in some cases the electrolyte cadmium mix is a beautiful green, depending on quality of cadmium from cell maker!)- job done! Got ta state- the mix I have contributed to batt cells does not appear to help! In truth- 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 should be only lightly sulfated).
Still it is proficient at identifying 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 almost so!. do i need to charge car battery after battery recondition. Bevan - I would suggest fine-tuning the cadmium by making the cadmium you recovered from the NiCds the favorable in an electroplating cell.
Utilize a tin wire or solder wire negative. Power source can be 12V battery. Insert 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. how to recondition an old battery. 5V. The green you describe would be nickel contamination.
Bevan - That's imaginative! Why didn't I consider that prior to? I will try it. John - You're one smart gentleman, thanks for the info. Bevan - I believe I may have at long last managed to find out what cadmium sulfate does. It certainly electroplates out onto the negative grid metal when the battery is deliberately pressed 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, discharging spreads the conductive environment gradually and gradually into the bulk of the lead sulfate. The procedure appears to have a limit. how to reconditioning car battery. It would appear the trick to accomplishing 100% desulfation is to find out how to get conduction to spread out into 100% of the sulfate.
Adding gradually more simply produces dendrites and triggers shorts. The descriptions provided by desulation merchants that insoluble sulfation undoubtedly coats the plates when batteries are utilized which their treatment strips it away is pure fantasy. The sulfate stays right where it is. It is converted. While both positive and unfavorable plates can become sulfated, the positive sulfation merely reverses when the battery is charged.
John - If I comprehend you correctly, did you meant all the cadmium does is electroplating itself on the unfavorable grid?If so, would not simply copper suffices? Afdhal- it is just John's theory- but i would state 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 most! Afdhal - No, copper and copper sulfate are not suitable.
Cadmium has an electrochemical capacity of -0. 4030V. Lead has an electrochemical potential of -0. 1262V. The electrochemical potential of cadmium is such that it prevents electroplating when a battery is standing. It is just when a battery is placed on gassing charge that the voltage at the unfavorable 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 stay there, causing the plates to gas and to self discharge and to sulfate. The electrochemical potentials of aluminum, magnesium, potassium, salt, etc. are all far to negative, the metals far too reactive in battery acid, for anything of benefit to take place.
Bevan - It is not a theory. I ran the experiments. Constructed lead-acid cells in glass containers. I observed and measured (car battery reconditioning). 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 FACT- your findings MUST be duplicated by other like minded individuals- can't see that happening just yet- still, there is hope.
Bevan - I personally might not care less what people opine about sulfation. I ran an experiment created to answer yes or no, whether batteries can be desulfated. My experiment showed that a person might get a quarter to a 3rd short-term recovery. I would not explain that as a "yes".
Others can easily repeat my expermiment. Humanity being what it is, some individuals so do not like an awful truth obstructing of a gorgeous story, their counter arguments will always be in words, not deeds. The litmus test: Desulfation stays 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, do not fuss over them after they "signed off". We do not feed medicine to dead individuals. Why do it to batteries? The experiment is described on "CAN BATTERIES BE BROUGHT BACK". Well, anybody can state what they desire about sulfation or desulfation, however including Epsom salt (solution= 8 teaspoonfuls Epsom salts dissolved in 1 pint pure water) coupled with a 3 day trickle charge assisted 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, however I will let you know when it lastly dies. Adios Shadmin - The part of the 1 pint of water that you handled to put into the battery assisted; the three days additional trickle charge assisted; the Epsom salts satisfied your belief - materials needed to recondition car battery.
ALL the so-called solutions incl epson, alum, cadmium, etc, etc, etc advertisement infinitum not do anything!!! But typically damage!! What many posters like to think is that THEIR!!! treatment made a distinction!! BUT overlook all the other specifications of battery response incl temp, humidity etc in their attempt to understand a complex subject!! (reconditioning car battery). The bare fact is that all vehicle charge systems do not completely charge the l/a starter batt- however only around 14v- for numerous different factors.
Bevan - Where does the acid that raised your SG come from? John- simply 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 reducing sulfation & therefore raising sg!. battery reconditioning.