That is quite common. The silliest thing you can do is to put all sort of sulfates into batteries in the hope of fixing an issue. Urban legends will never die. Pencil lead can consist of some odd compounds in addition to carbon (automotive battery reconditioning). There are plenty of carbon powder makers. Automobile 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 found in solar garden lights- after a couple of years they are tossed out as NiCd is broken- merely cut around top 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 acquire Cadmium Sulphate, boil up some electrolyte- drop cadmium in- will bubble up & emit toxic fumes- do outside -do not breathe vapours!!! When cadmium is completely liquified( & sometimes the electrolyte cadmium mix is a lovely green, depending on quality of cadmium from cell maker!)- job done! Got ta state- the mix I have actually contributed to batt cells does not seem to help! 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 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 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 almost so!. how to recondition a battery at home. Bevan - I would recommend fine-tuning 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. Place 220 ohm series resistor. The cadmium that gets plated onto the negative will be dendritic and pure. The actual voltage throughout the electroplating cell will be under 0. materials needed to recondition car battery. 5V. The green you explain would be nickel contamination.
Bevan - That's innovative! Why didn't I think about that before? I will attempt it. John - You're one clever gentleman, thanks for the information. Bevan - I believe I may have at long last managed to find out what cadmium sulfate does. It certainly electroplates out onto the unfavorable grid metal when the battery is intentionally pushed into regulated overcharge.
This helps the lead sulfate nearest the grids to become 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 procedure appears to have a limitation. recondition 12 volt battery. It would appear the trick to achieving 100% desulfation is to figure out how to get conduction to spread into 100% of the sulfate.
Adding gradually more simply develops dendrites and triggers shorts. The descriptions given by desulation merchants that insoluble sulfation undoubtedly coats the plates when batteries are used and that their treatment strips it away is pure dream. The sulfate stays right where it is. It is transformed. While both favorable and negative plates can become sulfated, the positive sulfation just reverses when the battery is charged.
John - If I comprehend you properly, did you suggested all the cadmium does is electroplating itself on the unfavorable grid?If so, wouldn't just copper is great enough? Afdhal- it is simply 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 the majority of! Afdhal - No, copper and copper sulfate are not appropriate.
Cadmium has an electrochemical capacity 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 just when a battery is put on gassing charge that the voltage at the negative plate favors electroplating.
Copper has an electrochemical prospective Cu of +0. 5210V and Cu2 of +0. 3419V. Copper will simply plate onto the negatives regardless and remain there, causing the plates to gas and to self discharge and to sulfate. The electrochemical capacities of aluminum, magnesium, potassium, salt, etc. 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. Developed lead-acid cells in glass jars. I observed and measured (how to restore a dead battery car). 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 become TRUTH- your findings MUST be duplicated by other like minded persons- can't see that occurring right now- still, there is hope.
Bevan - I personally could not care less what individuals suggest about sulfation. I ran an experiment created to respond to yes or no, whether batteries can be desulfated. My experiment showed that one may get a quarter to a 3rd short-term healing. I would not describe that as a "yes".
Others can easily duplicate my expermiment. Humanity being what it is, some individuals so do not like an ugly truth getting in the way of a gorgeous story, their counter arguments will always remain in words, not deeds. The base test: Desulfation remains a struggling industry. Something is wrong. There is no conspiracy.
If you desire batteries to last longer, deal with them, help them while they are still functional, don't 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 say what they desire about sulfation or desulfation, however adding 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 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 lastly dies. Adios Shadmin - The portion of the 1 pint of water that you managed to take into the battery helped; the three days extra drip charge assisted; the Epsom salts pleased your belief - how do you recondition a car battery.
ALL the so-called remedies incl epson, alum, cadmium, etc, etc, etc advertisement infinitum not do anything!!! But normally hurt!! What numerous posters like to believe is that THEIR!!! treatment made a distinction!! BUT overlook all the other parameters of battery response incl temperature, humidity etc in their attempt to make sense of a complicated subject!! (materials needed to recondition car battery). The bare fact is that all vehicle charge systems do not fully charge the l/a starter batt- however only around 14v- for several various reasons.
Bevan - Where does the acid that raised your SG come from? John- just got back on line after week after altering ISP!!! The increased sg is because of the dollop in the 15 ml added of Inox Mx2 to each cell! IT certainly is NOT due to minimizing sulfation & therefore raising sg!. battery reconditioning.