That is pretty common. The silliest thing you can do is to put all kinds of sulfates into batteries in the hope of resolving a problem. Urban legends will never ever pass away. Pencil lead can include some odd compounds in addition to carbon (how to recondition a battery at home). There are lots of carbon powder manufacturers. Car 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 couple of years they are tossed out as NiCd is worn- just cut around leading 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 & emit harmful fumes- do outside -do not breathe vapours!!! When cadmium is totally dissolved( & often the electrolyte cadmium mix is a charming green, depending on quality of cadmium from cell maker!)- job done! Got ta say- the mix I have actually contributed to batt cells does not seem to help! In truth- 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; & try; in other batts to validate yes or no! Apart from that, the other thing is that the batt itself need to be only lightly sulfated).
Still it is proficient at recognizing o/c cell/s in batt- pulses increase higher with degree of o/c! have seen 1250 volts! Cut open, & broke down pos grid! in 1 cell-others almost so!. how to recondition a car battery. Bevan - I would suggest improving the cadmium by making the cadmium you recovered from the NiCds the favorable in an electroplating cell.
Use 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 unfavorable will be dendritic and pure. The real voltage throughout the electroplating cell will be under 0. test and recondition car battery. 5V. The green you explain would be nickel contamination.
Bevan - That's creative! Why didn't I consider that before? I will try it. John - You're one smart gentleman, thanks for the info. Bevan - I believe I may have at long last managed to find out what cadmium sulfate does. It definitely 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 again and to be transformed into lead and sulfate ions. Repeated charging, discharging spreads the conductive environment gradually and progressively into the bulk of the lead sulfate. The process seems to have a limitation. how to restore a dead car battery. It would appear the secret to attaining 100% desulfation is to find out how to get conduction to spread out into 100% of the sulfate.
Adding progressively more simply develops dendrites and triggers shorts. The explanations given by desulation merchants that insoluble sulfation inevitably coats the plates when batteries are utilized and that their treatment strips it away is pure fantasy. The sulfate stays right where it is. It is converted. While both positive and unfavorable plates can become sulfated, the positive sulfation simply reverses when the battery is charged.
John - If I understand you properly, did you meant all the cadmium does is electroplating itself on the negative grid?If so, would not just copper is great enough? Afdhal- it is simply John's theory- but i would state 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 most! Afdhal - No, copper and copper sulfate are not appropriate.
Cadmium has an electrochemical capacity of -0. 4030V. Lead has an electrochemical capacity of -0. 1262V. The electrochemical potential of cadmium is such that it prevents electroplating when a battery is standing. It is only when a battery is placed on gassing charge that the voltage at the negative plate favors electroplating.
Copper has an electrochemical prospective Cu of +0. 5210V and Cu2 of +0. 3419V. Copper will merely 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, sodium, and so on are all far to negative, the metals far too reactive in battery acid, for anything of benefit to take place.
Bevan - It is not a theory. I ran the experiments. Developed lead-acid cells in glass jars. I observed and determined (recondition car battery for sale). 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 end up being REALITY- your findings MUST be replicated by other like minded persons- can't see that taking place just yet- still, there is hope.
Bevan - I personally could not care less what people opine about sulfation. I ran an experiment developed to address yes or no, whether batteries can be desulfated. My experiment showed that a person may get a quarter to a third short-term recovery. I would not explain that as a "yes".
Others can easily repeat my expermiment. Humanity being what it is, some individuals so do not like an awful fact getting in the way of a gorgeous 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 ideal. There is no conspiracy.
If you desire batteries to last longer, work on them, help them while they are still functional, don't 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 RESTORED". Well, anyone can state what they want about sulfation or desulfation, however including Epsom salt (solution= 8 teaspoonfuls Epsom salts dissolved in 1 pint pure water) paired with a 3 day drip charge assisted my truck battery keep a better charge.
The battery performed well through the winter after my treatment and is still going strong! I do not know just how much longer it will live, but I will let you understand when it lastly passes away. Adios Shadmin - The portion of the 1 pint of water that you handled to take into the battery helped; the three days additional drip charge assisted; the Epsom salts satisfied your belief - do i need to charge car battery after battery recondition.
ALL the so-called solutions incl epson, alum, cadmium, etc, etc, etc advertisement infinitum not do anything!!! But usually harm!! What numerous posters like to believe is that THEIR!!! treatment made a distinction!! BUT neglect all the other criteria of battery action incl temperature, humidity etc in their attempt to understand a complex subject!! (high frequency battery reconditioning). The bare fact is that all vehicle charge systems do not totally charge the l/a starter batt- but just around 14v- for a number of different factors.
Bevan - Where does the acid that raised your SG originated from? John- just 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 certainly is NOT due to lowering sulfation & hence raising sg!. how to recondition an old battery.