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 myth will never ever pass away. Pencil lead can contain some unusual compounds in addition to carbon (reconditioning car battery). There are plenty of carbon powder manufacturers. Cars and truck 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 couple of years they are tossed out as NiCd is broken- just cut around leading 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 & offer off toxic fumes- do outdoors -do not breathe vapours!!! When cadmium is totally liquified( & often the electrolyte cadmium mix is a lovely 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 help! In reality- I got ta state the ONLY thing I utilized 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 need to be only lightly sulfated).
Still it is proficient 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!. is it okay to recondition a car battery with it still connected. Bevan - I would suggest improving the cadmium by making the cadmium you recovered from the NiCds the positive in an electroplating cell.
Use a tin wire or solder wire unfavorable. 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 creative! Why didn't I believe of that prior to? I will try it. John - You're one smart gentleman, thanks for the details. Bevan - I believe I might have at long last handled to determine what cadmium sulfate does. It definitely electroplates out onto the unfavorable grid metal when the battery is intentionally 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. Duplicated charging, discharging spreads the conductive environment slowly and gradually into the bulk of the lead sulfate. The procedure appears to have a limit. what is in battery reconditioning solution. It would appear the secret to achieving 100% desulfation is to determine how to get conduction to spread into 100% of the sulfate.
Including progressively more merely produces dendrites and causes shorts. The descriptions offered by desulation merchants that insoluble sulfation undoubtedly coats the plates when batteries are utilized and that their treatment strips it away is pure fantasy. The sulfate remains right where it is. It is transformed. While both positive and negative plates can become sulfated, the positive sulfation merely reverses when the battery is charged.
John - If I comprehend you properly, did you meant all the cadmium does is electroplating itself on the negative 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- 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 appropriate.
Cadmium has an electrochemical potential of -0. 4030V. Lead has an electrochemical capacity of -0. 1262V. The electrochemical capacity of cadmium is such that it avoids electroplating when a battery is standing. It is only when a battery is put on gassing charge that the voltage at the negative plate prefers 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, 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 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. Constructed lead-acid cells in glass containers. I observed and measured (battery reconditioning). 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 TRUTH- your findings MUST be replicated by other like minded individuals- can't see that happening simply yet- still, there is hope.
Bevan - I personally could not care less what people opine about sulfation. I ran an experiment created to respond to yes or no, whether batteries can be desulfated. My experiment showed that a person 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 individuals so dislike an awful fact getting in the way of a lovely story, their counter arguments will constantly remain in words, not deeds. The litmus test: Desulfation remains a struggling market. Something is not right. There is no conspiracy.
If you desire batteries to last longer, work on them, help them while they are still functional, do not fuss over them after they "signed off". We don't feed medicine to dead people. 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, however adding Epsom salt (option= 8 teaspoonfuls Epsom salts dissolved in 1 pint pure water) coupled with a 3 day drip charge assisted my truck battery keep 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, but I will let you know when it lastly dies. Adios Shadmin - The portion of the 1 pint of water that you managed to take into the battery assisted; the 3 days extra drip charge helped; the Epsom salts satisfied your belief - reconditioning car battery.
ALL the so-called remedies incl epson, alum, cadmium, etc, etc, etc advertisement infinitum not do anything!!! However generally harm!! What lots of posters like to think is that THEIR!!! treatment made a difference!! BUT overlook all the other parameters of battery action incl temperature, humidity etc in their effort to understand a complicated subject!! (how to restore a dead car battery). The bare truth is that all automobile charge systems do not completely charge the l/a starter batt- however just around 14v- for numerous 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 added of Inox Mx2 to each cell! IT certainly is NOT due to minimizing sulfation & therefore raising sg!. high frequency battery reconditioning.