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That is pretty typical. The silliest thing you can do is to put all sort of sulfates into batteries in the hope of resolving a problem. Urban legends will never ever die. Pencil lead can contain some odd compounds in addition to carbon (how to recondition a 12 volt battery). There are lots of carbon powder makers. Car tyres 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 found in solar garden lights- after a couple of years they are thrown away as NiCd is worn out- simply cut around top crimp with hacksaw, unwind s/s case with cutter, withdraw contents- external foil is cadmium, inner foil is nickel, & some solid electrolyte & seperator- all injury in spiral pattern.
To get Cadmium Sulphate, boil up some electrolyte- drop cadmium in- will bubble up & give off harmful fumes- do outdoors -do not breathe vapours!!! When cadmium is totally dissolved( & sometimes the electrolyte cadmium mix is a charming green, depending upon quality of cadmium from cell maker!)- task done! Got ta state- the mix I have actually included 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 confirm yes or no! Apart from that, the other thing is that the batt itself must be just lightly sulfated).
Still it is good at recognizing o/c cell/s in batt- pulses go up higher with degree of o/c! have seen 1250 volts! Cut open, & disintegrated pos grid! in 1 cell-others nearly so!. battery reconditioning com. Bevan - I would suggest fine-tuning the cadmium by making the cadmium you recuperated 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 dead battery. 5V. The green you explain would be nickel contamination.
Bevan - That's creative! Why didn't I consider that prior to? I will attempt it. John - You're one smart gentleman, thanks for the information. Bevan - I think I might have at long last handled to figure out what cadmium sulfate does. It absolutely electroplates out onto the negative grid metal when the battery is deliberately pressed into controlled overcharge.
This assists the lead sulfate nearest the grids to end up being active once again and to be converted into lead and sulfate ions. Repeated charging, discharging spreads the conductive environment gradually and progressively into the bulk of the lead sulfate. The procedure appears to have a limitation. recondition dead battery. It would appear the trick to attaining 100% desulfation is to figure out how to get conduction to spread into 100% of the sulfate.
Including gradually more just develops dendrites and triggers 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 unfavorable plates can become sulfated, the favorable sulfation merely reverses when the battery is charged.
John - If I understand you correctly, 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- however i would state 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 a lot of! Afdhal - No, copper and copper sulfate are not suitable.
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 prevents electroplating when a battery is standing. It is just when a battery is put on gassing charge that the voltage at the unfavorable 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, causing 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 happen.
Bevan - It is not a theory. I ran the experiments. Built lead-acid cells in glass jars. I observed and determined (recondition battery guide). 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 REALITY- your findings MUST be duplicated by other like minded persons- can't see that occurring simply yet- still, there is hope.
Bevan - I personally might not care less what individuals believe about sulfation. I ran an experiment designed to answer yes or no, whether batteries can be desulfated. My experiment showed that a person might get a quarter to a 3rd short-term recovery. I would not explain that as a "yes".
Others can quickly repeat my expermiment. Human nature being what it is, some people so do not like an awful truth getting in the way of a beautiful story, their counter arguments will constantly remain in words, not deeds. The litmus test: Desulfation remains a having a hard time market. Something is not best. There is no conspiracy.
If you desire batteries to last longer, deal with them, assist 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 described on "CAN BATTERIES BE BROUGHT BACK". Well, anyone can say what they want about sulfation or desulfation, however adding Epsom salt (solution= 8 teaspoonfuls Epsom salts dissolved in 1 pint pure water) paired with a 3 day trickle charge assisted my truck battery keep a 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 lastly passes away. Adios Shadmin - The part of the 1 pint of water that you handled to put 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 generally hurt!! What lots of posters like to think is that THEIR!!! treatment made a difference!! BUT neglect all the other criteria of battery action incl temperature, humidity etc in their effort to understand a complex subject!! (battery reconditioning equipment). The bare truth is that all automobile charge systems do not fully charge the l/a starter batt- however only around 14v- for a number of different reasons.
Bevan - Where does the acid that raised your SG come from? John- just returned on line after week after altering ISP!!! The increased sg is because of the dollop in the 15 ml included of Inox Mx2 to each cell! IT certainly is NOT due to minimizing sulfation & thus raising sg!. how to recondition a battery at home.
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How Do You Recondition A Battery
How To Recondition A 12 Volt Battery