That is pretty typical. The silliest thing you can do is to put all kinds of sulfates into batteries in the hope of fixing an issue. Urban legends will never pass away. Pencil lead can consist of some strange compounds in addition to carbon (how to recondition any battery). There are plenty of carbon powder manufacturers. Cars and truck 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 found in solar garden lights- after a couple of years they are thrown out as NiCd is broken- just 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 & produce poisonous fumes- do outdoors -do not breathe vapours!!! When cadmium is completely dissolved( & often the electrolyte cadmium mix is a beautiful green, depending on quality of cadmium from cell maker!)- task done! Got ta say- the mix I have included to batt cells does not appear to assist! In fact- I got ta say the ONLY thing I used that worked was INOX MX2( in 1 batt up until now- 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 only gently sulfated).
Still it is great at recognizing o/c cell/s in batt- pulses go up higher with degree of o/c! have actually seen 1250 volts! Cut open, & disintegrated pos grid! in 1 cell-others nearly so!. how to recondition a battery at home. Bevan - I would suggest refining the cadmium by making the cadmium you recuperated from the NiCds the favorable in an electroplating cell.
Use a tin wire or solder wire negative. 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 actual voltage across the electroplating cell will be under 0. recondition car battery for sale. 5V. The green you describe would be nickel contamination.
Bevan - That's innovative! Why didn't I consider that prior to? I will try it. John - You're one clever gentleman, thanks for the information. Bevan - I believe I might have at long last handled 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 assists the lead sulfate nearest the grids to become active once again and to be converted into lead and sulfate ions. Repeated charging, discharging spreads the conductive environment slowly and gradually into the bulk of the lead sulfate. The procedure seems to have a limit. how to recondition a battery at home. It would appear the secret to achieving 100% desulfation is to find out how to get conduction to spread into 100% of the sulfate.
Including gradually more just creates dendrites and causes shorts. The descriptions given by desulation merchants that insoluble sulfation inevitably coats the plates when batteries are used which their treatment strips it away is pure fantasy. The sulfate stays right where it is. It is converted. While both favorable and unfavorable plates can end up being sulfated, the favorable sulfation merely reverses when the battery is charged.
John - If I comprehend you properly, did you implied 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 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 ideal.
Cadmium has an electrochemical potential 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 just when a battery is placed on gassing charge that the voltage at the negative plate favors electroplating.
Copper has an electrochemical potential Cu of +0. 5210V and Cu2 of +0. 3419V. Copper will simply 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, sodium, etc. are all far to unfavorable, the metals far too reactive in battery acid, for anything of advantage to occur.
Bevan - It is not a theory. I ran the experiments. Built lead-acid cells in glass jars. I observed and determined (recondition 12 volt battery). John- to my knowledge, 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 TRUTH- your findings MUST be duplicated by other like minded persons- can't see that happening simply yet- still, there is hope.
Bevan - I personally could not care less what individuals believe 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 third short-term healing. I would not describe that as a "yes".
Others can easily repeat my expermiment. Humanity being what it is, some people so do not like an awful reality getting in the method of a gorgeous 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, work on them, assist them while they are still serviceable, do not fuss over them after they "signed off". We don't feed medication to dead people. 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, but including Epsom salt (solution= 8 teaspoonfuls Epsom salts liquified in 1 pint pure water) paired with a 3 day trickle charge assisted my truck battery retain a much better charge.
The battery performed 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 finally passes away. Adios Shadmin - The part of the 1 pint of water that you handled to take into the battery helped; the three days additional drip charge assisted; the Epsom salts pleased your belief - battery reconditioning com.
ALL the so-called remedies incl epson, alum, cadmium, etc, etc, etc ad infinitum not do anything!!! But typically harm!! What many posters like to think is that THEIR!!! treatment made a distinction!! BUT neglect all the other criteria of battery response incl temp, humidity etc in their effort to understand a complicated subject!! (is it okay to recondition a car battery with it still connected). The bare reality is that all automotive charge systems do not fully charge the l/a starter batt- however just around 14v- for several different factors.
Bevan - Where does the acid that raised your SG originated from? John- just got back on line after week after altering ISP!!! The increased sg is due to the dollop in the 15 ml included of Inox Mx2 to each cell! IT absolutely is NOT due to minimizing sulfation & hence raising sg!. is it okay to recondition a car battery with it still connected.