That is quite typical. The silliest thing you can do is to put all type of sulfates into batteries in the hope of fixing an issue. Urban legends will never ever pass away. Pencil lead can consist of some weird substances in addition to carbon (recondition a car battery). There are lots of carbon powder producers. Vehicle 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 discovered in solar garden lights- after a few years they are thrown away as NiCd is worn- simply cut around top crimp with hacksaw, unravel s/s case with cutter, withdraw contents- external foil is cadmium, inner foil is nickel, & some solid electrolyte & seperator- all wound in spiral pattern.
To get Cadmium Sulphate, boil up some electrolyte- drop cadmium in- will bubble up & emit harmful fumes- do outdoors -do not breathe vapours!!! When cadmium is entirely 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 actually added to batt cells does not appear to assist! In reality- I got ta say the ONLY thing I used 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 good at recognizing o/c cell/s in batt- pulses increase higher with degree of o/c! have actually seen 1250 volts! Cut open, & disintegrated pos grid! in 1 cell-others practically so!. how to restore a car battery. Bevan - I would suggest refining the cadmium by making the cadmium you recuperated from the NiCds the favorable in an electroplating cell.
Utilize a tin wire or solder wire unfavorable. 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. materials needed to recondition car battery. 5V. The green you describe would be nickel contamination.
Bevan - That's imaginative! Why didn't I think of that before? I will attempt it. John - You're one smart gentleman, thanks for the information. Bevan - I believe I might have at long last managed to determine what cadmium sulfate does. It absolutely electroplates out onto the negative grid metal when the battery is intentionally pushed into regulated 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. Duplicated charging, discharging spreads the conductive environment slowly and gradually into the bulk of the lead sulfate. The process appears to have a limit. 12 volt battery reconditioning. It would appear the secret to achieving 100% desulfation is to determine how to get conduction to spread out into 100% of the sulfate.
Including progressively more simply produces dendrites and causes shorts. The explanations provided by desulation merchants that insoluble sulfation inevitably coats the plates when batteries are used and that their treatment strips it away is pure dream. The sulfate remains right where it is. It is transformed. While both favorable and negative plates can end up being sulfated, the positive sulfation merely reverses when the battery is charged.
John - If I understand you correctly, did you meant all the cadmium does is electroplating itself on the unfavorable grid?If so, wouldn't just copper is excellent enough? Afdhal- it is just John's theory- however i would say 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 many! 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 only when a battery is placed on gassing charge that the voltage at the negative plate prefers electroplating.
Copper has an electrochemical possible Cu of +0. 5210V and Cu2 of +0. 3419V. Copper will simply 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 negative, the metals far too reactive in battery acid, for anything of advantage to happen.
Bevan - It is not a theory. I ran the experiments. Developed lead-acid cells in glass jars. I observed and measured (12 volt battery reconditioning). 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 FACT- your findings MUST be replicated by other like minded persons- can't see that taking place simply yet- still, there is hope.
Bevan - I personally might not care less what individuals believe about sulfation. I ran an experiment developed 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 explain that as a "yes".
Others can easily duplicate my expermiment. Humanity being what it is, some people so dislike an awful reality obstructing of a gorgeous story, their counter arguments will constantly be in words, not deeds. The litmus test: Desulfation remains a struggling market. Something is wrong. There is no conspiracy.
If you want batteries to last longer, deal with them, help them while they are still serviceable, do not fuss over them after they "signed off". We do not feed medication to dead individuals. Why do it to batteries? The experiment is explained on "CAN BATTERIES BE RESTORED". Well, anyone can state what they want about sulfation or desulfation, but including Epsom salt (option= 8 teaspoonfuls Epsom salts dissolved in 1 pint distilled water) paired with a 3 day trickle charge helped my truck battery retain a much better charge.
The battery performed well through the winter season after my treatment and is still going strong! I don't understand how much longer it will live, however I will let you know when it finally dies. Adios Shadmin - The portion of the 1 pint of water that you handled to put into the battery assisted; the 3 days additional drip charge helped; the Epsom salts pleased your belief - battery reconditioning.
ALL the so-called treatments incl epson, alum, cadmium, etc, etc, etc advertisement infinitum do NOTHING!!! However typically damage!! What numerous posters like to believe is that THEIR!!! treatment made a distinction!! BUT overlook all the other criteria of battery response incl temp, humidity etc in their effort to understand a complex subject!! (recondition old battery). The bare reality is that all automobile charge systems do not fully charge the l/a starter batt- but only around 14v- for several various reasons.
Bevan - Where does the acid that raised your SG originated 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 absolutely is NOT due to minimizing sulfation & thus raising sg!. recondition your old battery.