That is quite typical. The silliest thing you can do is to put all sort of sulfates into batteries in the hope of resolving an issue. Urban legends will never ever pass away. Pencil lead can contain some strange substances in addition to carbon (how to reconditioning car battery). There are plenty of carbon powder manufacturers. Vehicle 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 few years they are thrown away as NiCd is used out- simply cut around leading crimp with hacksaw, unravel s/s case with cutter, withdraw contents- outer 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 & give off harmful fumes- do outdoors -do not breathe vapours!!! When cadmium is totally liquified( & in some cases the electrolyte cadmium mix is a charming green, depending on quality of cadmium from cell maker!)- task done! Got ta state- the mix I have added to batt cells does not seem to assist! In reality- I got ta state 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 need to be just lightly sulfated).
Still it is proficient at determining o/c cell/s in batt- pulses go up greater with degree of o/c! have actually seen 1250 volts! Cut open, & broke down pos grid! in 1 cell-others practically so!. recondition battery. Bevan - I would suggest 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 negative. 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. battery recondition. 5V. The green you describe would be nickel contamination.
Bevan - That's innovative! Why didn't I think about that prior to? I will try it. John - You're one wise gentleman, thanks for the details. Bevan - I think I may have at long last managed to determine what cadmium sulfate does. It definitely electroplates out onto the unfavorable grid metal when the battery is deliberately pushed into regulated overcharge.
This assists the lead sulfate nearest the grids to end up being active again and to be converted into lead and sulfate ions. Repeated charging, discharging spreads the conductive environment slowly and progressively into the bulk of the lead sulfate. The procedure seems to have a limit. how to restore a car battery. It would appear the trick to achieving 100% desulfation is to find out how to get conduction to spread out into 100% of the sulfate.
Adding gradually more just produces dendrites and causes shorts. The explanations offered by desulation merchants that insoluble sulfation inevitably coats the plates when batteries are used which their treatment strips it away is pure fantasy. The sulfate remains right where it is. It is converted. While both favorable and unfavorable plates can become sulfated, the positive sulfation merely reverses when the battery is charged.
John - If I understand you correctly, did you indicated all the cadmium does is electroplating itself on the unfavorable grid?If so, wouldn't simply copper is excellent enough? Afdhal- it is just John's theory- but i would state cadmium does not simply 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 suitable.
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 just when a battery is placed on gassing charge that the voltage at the unfavorable 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 stay 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 jars. I observed and determined (do i need to charge car battery after battery recondition). 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 end up being TRUTH- your findings MUST be reproduced by other like minded individuals- can't see that occurring right now- still, there is hope.
Bevan - I personally could not care less what individuals opine about sulfation. I ran an experiment developed to address 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 explain 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 getting in the method of a gorgeous story, their counter arguments will always be in words, not deeds. The base test: Desulfation remains a struggling market. Something is not ideal. There is no conspiracy.
If you desire batteries to last longer, work on them, assist them while they are still serviceable, 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 BROUGHT BACK". Well, anyone can state what they desire about sulfation or desulfation, but including Epsom salt (service= 8 teaspoonfuls Epsom salts dissolved in 1 pint distilled water) combined with a 3 day trickle charge assisted my truck battery maintain a much better charge.
The battery carried out well through the winter season after my treatment and is still going strong! I don't understand just how much longer it will live, however I will let you know when it finally dies. Adios Shadmin - The part of the 1 pint of water that you handled to take into the battery helped; the 3 days extra drip charge helped; the Epsom salts pleased your belief - high frequency battery reconditioning.
ALL the so-called solutions incl epson, alum, cadmium, etc, etc, etc advertisement infinitum not do anything!!! But normally harm!! What lots of posters like to think is that THEIR!!! treatment made a difference!! BUT neglect all the other specifications of battery reaction incl temp, humidity etc in their effort to make sense of a complicated subject!! (automotive battery reconditioning). The bare truth is that all automobile charge systems do not fully charge the l/a starter batt- but only around 14v- for numerous different reasons.
Bevan - Where does the acid that raised your SG come 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 decreasing sulfation & hence raising sg!. how to recondition a battery at home.