That is pretty typical. The silliest thing you can do is to put all kinds of sulfates into batteries in the hope of resolving an issue. Urban legends will never ever die. Pencil lead can consist of some odd compounds in addition to carbon (how to recondition a 12 volt battery). There are a lot of carbon powder makers. Cars and truck 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 discovered in solar garden lights- after a couple of years they are tossed out as NiCd is used out- merely cut around top crimp with hacksaw, unwind 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 & produce harmful fumes- do outside -do not breathe vapours!!! When cadmium is entirely dissolved( & in some cases the electrolyte cadmium mix is a charming 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 reality- I got ta state the ONLY thing I utilized that worked was INOX MX2( in 1 batt so far- 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 should be just gently sulfated).
Still it is excellent at identifying o/c cell/s in batt- pulses increase greater with degree of o/c! have seen 1250 volts! Cut open, & broke down pos grid! in 1 cell-others nearly so!. how to recondition a dead car battery. Bevan - I would recommend fine-tuning the cadmium by making the cadmium you recovered from the NiCds the positive in an electroplating cell.
Use a tin wire or solder wire negative. Source of power can be 12V battery. Insert 220 ohm series resistor. The cadmium that gets plated onto the unfavorable will be dendritic and pure. The real voltage across the electroplating cell will be under 0. recondition battery. 5V. The green you explain would be nickel contamination.
Bevan - That's innovative! Why didn't I think about that before? I will try it. John - You're one smart gentleman, thanks for the information. Bevan - I believe I might have at long last handled to determine what cadmium sulfate does. It definitely 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, discharging spreads the conductive environment slowly and progressively into the bulk of the lead sulfate. The procedure appears to have a limit. automotive battery reconditioning. It would appear the secret to achieving 100% desulfation is to determine how to get conduction to spread into 100% of the sulfate.
Including progressively more simply develops dendrites and triggers shorts. The descriptions offered by desulation merchants that insoluble sulfation inevitably coats the plates when batteries are utilized which their treatment strips it away is pure dream. The sulfate stays right where it is. It is converted. While both favorable and negative plates can end up being sulfated, the positive sulfation merely reverses when the battery is charged.
John - If I comprehend you correctly, did you suggested all the cadmium does is electroplating itself on the unfavorable grid?If so, wouldn't simply copper suffices? Afdhal- it is simply John's theory- but i would say 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 many! 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 just when a battery is placed on gassing charge that the voltage at the unfavorable plate favors electroplating.
Copper has an electrochemical potential 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 unfavorable, the metals far too reactive in battery acid, for anything of benefit to occur.
Bevan - It is not a theory. I ran the experiments. Constructed lead-acid cells in glass containers. I observed and measured (how to recondition a dead battery). 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 REALITY- your findings MUST be reproduced by other like minded individuals- can't see that taking place right now- still, there is hope.
Bevan - I personally could not care less what people suggest about sulfation. I ran an experiment created to respond to yes or no, whether batteries can be desulfated. My experiment revealed that one might get a quarter to a third short-term recovery. I would not describe that as a "yes".
Others can easily repeat my expermiment. Human nature being what it is, some people so do not like an ugly truth obstructing of a stunning 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 want 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 people. Why do it to batteries? The experiment is explained on "CAN BATTERIES BE BROUGHT BACK". Well, anybody can say what they want about sulfation or desulfation, but adding Epsom salt (service= 8 teaspoonfuls Epsom salts liquified in 1 pint distilled water) coupled with a 3 day trickle charge assisted my truck battery maintain a better charge.
The battery carried out well through the winter after my treatment and is still going strong! I don't know just how much longer it will live, however I will let you understand when it finally passes away. 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 helped; the Epsom salts satisfied your belief - recondition old battery.
ALL the so-called solutions incl epson, alum, cadmium, etc, etc, etc advertisement infinitum do ABSOLUTELY NOTHING!!! But normally damage!! What many posters like to think is that THEIR!!! treatment made a distinction!! BUT neglect all the other parameters of battery reaction incl temp, humidity etc in their effort to make sense of a complicated subject!! (how to recondition a dead battery). The bare reality is that all automobile charge systems do not completely charge the l/a starter batt- but just around 14v- for a number of different reasons.
Bevan - Where does the acid that raised your SG come from? John- simply got back on line after week after altering ISP!!! The increased sg is due to the dollop in the 15 ml added of Inox Mx2 to each cell! IT absolutely is NOT due to minimizing sulfation & thus raising sg!. battery reconditioning equipment.