That is quite common. The silliest thing you can do is to put all type of sulfates into batteries in the hope of fixing a problem. Urban legends will never die. Pencil lead can consist of some strange compounds in addition to carbon (how to recondition a battery). There are a lot of carbon powder producers. 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 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 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 dissolved( & often the electrolyte cadmium mix is a charming green, depending upon quality of cadmium from cell maker!)- job done! Got ta state- the mix I have added to batt cells does not appear to help! In reality- I got ta state the ONLY thing I utilized that worked was INOX MX2( in 1 batt up until now- I will get some more MX2 &try; & try; in other batts to validate yes or no! Apart from that, the other thing is that the batt itself must be only lightly 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, & disintegrated pos grid! in 1 cell-others nearly so!. how do you recondition a dead car battery. Bevan - I would recommend 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. Insert 220 ohm series resistor. The cadmium that gets plated onto the negative will be dendritic and pure. The actual voltage across the electroplating cell will be under 0. how to recondition a battery at home. 5V. The green you describe would be nickel contamination.
Bevan - That's imaginative! Why didn't I consider that prior to? I will attempt it. John - You're one smart gentleman, thanks for the information. Bevan - I think I may have at long last managed to determine what cadmium sulfate does. It definitely electroplates out onto the unfavorable grid metal when the battery is intentionally 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. Duplicated charging, releasing spreads the conductive environment gradually and gradually into the bulk of the lead sulfate. The process seems to have a limit. recondition 12 volt battery. It would appear the secret to accomplishing 100% desulfation is to determine how to get conduction to spread out into 100% of the sulfate.
Including gradually more just produces dendrites and causes shorts. The explanations offered by desulation merchants that insoluble sulfation inevitably 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 converted. While both positive 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 negative grid?If so, would not simply copper suffices? Afdhal- it is just John's theory- however i would say cadmium does not simply plate itself- requirements 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 capacity of -0. 4030V. Lead has an electrochemical potential of -0. 1262V. The electrochemical potential of cadmium is such that it avoids electroplating when a battery is standing. It is only when a battery is placed on gassing charge that the voltage at the unfavorable plate prefers electroplating.
Copper has an electrochemical prospective 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, sodium, etc. are all far to negative, the metals far too reactive in battery acid, for anything of advantage to take place.
Bevan - It is not a theory. I ran the experiments. Developed lead-acid cells in glass containers. I observed and measured (reconditioning car 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 persons- can't see that taking place right now- still, there is hope.
Bevan - I personally could not care less what individuals opine about sulfation. I ran an experiment designed to address yes or no, whether batteries can be desulfated. My experiment revealed that one may get a quarter to a 3rd short-term recovery. 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 ugly truth getting in the way of a beautiful story, their counter arguments will constantly be 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, work on them, help them while they are still functional, do not fuss over them after they "signed off". We don't feed medicine to dead individuals. Why do it to batteries? The experiment is explained on "CAN BATTERIES BE RESTORED". Well, anybody can state what they desire about sulfation or desulfation, however adding Epsom salt (service= 8 teaspoonfuls Epsom salts dissolved in 1 pint pure water) paired 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 lastly dies. Adios Shadmin - The part of the 1 pint of water that you managed to take into the battery helped; the 3 days extra drip charge assisted; the Epsom salts satisfied your belief - is it okay to recondition a car battery with it still connected.
ALL the so-called treatments incl epson, alum, cadmium, etc, etc, etc ad infinitum do ABSOLUTELY NOTHING!!! But normally damage!! What many posters like to believe is that THEIR!!! treatment made a difference!! BUT neglect all the other criteria of battery reaction incl temperature, humidity etc in their effort to understand a complicated subject!! (recondition battery guide). The bare truth is that all vehicle charge systems do not totally charge the l/a starter batt- however only around 14v- for numerous different reasons.
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 due to the dollop in the 15 ml included of Inox Mx2 to each cell! IT definitely is NOT due to minimizing sulfation & therefore raising sg!. what is in battery reconditioning solution.