That is pretty common. The silliest thing you can do is to put all sort of sulfates into batteries in the hope of solving an issue. Urban myth will never ever die. Pencil lead can consist of some weird compounds in addition to carbon (how to recondition a dead car battery). There are lots of carbon powder producers. Automobile 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 few years they are thrown out as NiCd is worn out- merely cut around leading crimp with hacksaw, decipher 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 & give off toxic fumes- do outside -do not breathe vapours!!! When cadmium is entirely dissolved( & often the electrolyte cadmium mix is a lovely green, depending upon quality of cadmium from cell maker!)- job done! Got ta state- the mix I have actually included to batt cells does not appear to assist! In truth- I got ta state 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 validate 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 greater with degree of o/c! have seen 1250 volts! Cut open, & broke down pos grid! in 1 cell-others nearly so!. reconditioning car battery. Bevan - I would recommend improving 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 unfavorable will be dendritic and pure. The real voltage throughout the electroplating cell will be under 0. how to recondition a 12v battery. 5V. The green you describe would be nickel contamination.
Bevan - That's innovative! Why didn't I consider that before? I will try it. John - You're one smart gentleman, thanks for the information. Bevan - I believe I may have at long last handled to figure out what cadmium sulfate does. It certainly electroplates out onto the unfavorable grid metal when the battery is deliberately pressed into controlled overcharge.
This helps the lead sulfate nearest the grids to end up being active again and to be converted into lead and sulfate ions. Duplicated charging, releasing spreads the conductive environment slowly and gradually into the bulk of the lead sulfate. The procedure appears to have a limit. recondition battery guide. It would appear the trick to accomplishing 100% desulfation is to find out how to get conduction to spread into 100% of the sulfate.
Adding progressively more merely creates dendrites and causes shorts. The explanations given 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 transformed. While both positive and negative plates can end up being 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, wouldn't just copper suffices? Afdhal- it is just John's theory- however i would say cadmium does not just 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 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 just 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, and so on 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. Built lead-acid cells in glass jars. I observed and measured (how to restore a car battery). John- to my understanding, 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 FACT- your findings MUST be replicated by other like minded persons- can't see that happening right now- still, there is hope.
Bevan - I personally might 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 showed that one might get a quarter to a third short-term recovery. I would not describe that as a "yes".
Others can quickly repeat my expermiment. Humanity being what it is, some people so do not like an ugly fact getting in the method of a stunning story, their counter arguments will constantly remain in words, not deeds. The base test: Desulfation remains a having a hard time market. Something is wrong. There is no conspiracy.
If you want batteries to last longer, work on them, help 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 explained on "CAN BATTERIES BE RESTORED". Well, anybody can state what they want about sulfation or desulfation, but including Epsom salt (solution= 8 teaspoonfuls Epsom salts liquified in 1 pint pure water) coupled with a 3 day trickle charge assisted my truck battery maintain a much better charge.
The battery carried out well through the winter after my treatment and is still going strong! I do not know just how much longer it will live, however I will let you understand when it lastly passes away. Adios Shadmin - The part of the 1 pint of water that you managed to take into the battery helped; the three days additional trickle charge helped; the Epsom salts pleased your belief - recondition car battery for sale.
ALL the so-called treatments incl epson, alum, cadmium, etc, etc, etc ad infinitum do ABSOLUTELY NOTHING!!! However normally damage!! What numerous posters like to believe is that THEIR!!! treatment made a difference!! BUT neglect all the other specifications of battery response incl temp, humidity etc in their effort to make sense of a complex subject!! (recondition car battery for sale). The bare fact is that all automotive charge systems do not completely charge the l/a starter batt- but only around 14v- for numerous various factors.
Bevan - Where does the acid that raised your SG originated from? John- simply got back on line after week after changing ISP!!! The increased sg is due to the dollop in the 15 ml added of Inox Mx2 to each cell! IT certainly is NOT due to minimizing sulfation & therefore raising sg!. is it okay to recondition a car battery with it still connected.