That is quite 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 pass away. Pencil lead can contain some odd substances in addition to carbon (recondition a car battery). 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 utilized NiCd cells-aaa or aa sizes- such as found in solar garden lights- after a few years they are tossed out as NiCd is broken- just 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 obtain Cadmium Sulphate, boil up some electrolyte- drop cadmium in- will bubble up & release toxic fumes- do outdoors -do not breathe vapours!!! When cadmium is completely dissolved( & in some cases the electrolyte cadmium mix is a lovely green, depending upon quality of cadmium from cell maker!)- job done! Got ta state- the mix I have actually contributed to batt cells does not appear to assist! In fact- I got ta say the ONLY thing I utilized 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 must be only lightly sulfated).
Still it is good at identifying o/c cell/s in batt- pulses increase greater with degree of o/c! have seen 1250 volts! Cut open, & broke down pos grid! in 1 cell-others nearly so!. diy recondition car battery. Bevan - I would recommend refining the cadmium by making the cadmium you recuperated from the NiCds the favorable in an electroplating cell.
Use 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 real voltage throughout the electroplating cell will be under 0. reconditioning a battery. 5V. The green you explain would be nickel contamination.
Bevan - That's imaginative! Why didn't I think about that before? I will attempt it. John - You're one wise gentleman, thanks for the details. Bevan - I think I might have at long last managed to figure out what cadmium sulfate does. It absolutely electroplates out onto the negative grid metal when the battery is intentionally pushed into regulated 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, releasing spreads the conductive environment gradually and gradually into the bulk of the lead sulfate. The procedure seems to have a limit. how do you recondition a car battery. It would appear the secret to accomplishing 100% desulfation is to figure out how to get conduction to spread into 100% of the sulfate.
Adding progressively more just develops dendrites and triggers shorts. The explanations offered by desulation merchants that insoluble sulfation inevitably coats the plates when batteries are used and that their treatment strips it away is pure fantasy. The sulfate remains right where it is. It is converted. While both positive and unfavorable plates can end up being sulfated, the favorable sulfation merely reverses when the battery is charged.
John - If I comprehend you correctly, did you indicated 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- requirements 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 potential 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 placed 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 just plate onto the negatives regardless and stay there, triggering the plates to gas and to self discharge and to sulfate. The electrochemical potentials of aluminum, magnesium, potassium, sodium, etc. are all far to unfavorable, the metals far too reactive in battery acid, for anything of advantage to occur.
Bevan - It is not a theory. I ran the experiments. Developed lead-acid cells in glass jars. I observed and determined (how do you recondition a dead car battery). 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 FACT- your findings MUST be reproduced by other like minded persons- can't see that occurring simply yet- still, there is hope.
Bevan - I personally could not care less what individuals opine about sulfation. I ran an experiment developed to respond to yes or no, whether batteries can be desulfated. My experiment revealed that one may get a quarter to a 3rd short-term recovery. I would not describe that as a "yes".
Others can easily duplicate my expermiment. Humanity being what it is, some people so dislike an unsightly fact getting in the way of a beautiful story, their counter arguments will always remain in words, not deeds. The base test: Desulfation remains a struggling industry. Something is wrong. There is no conspiracy.
If you desire batteries to last longer, deal with them, help them while they are still functional, don't fuss over them after they "signed off". We don't 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 distilled water) paired with a 3 day drip charge helped my truck battery maintain a much better charge.
The battery carried out well through the winter after my treatment and is still going strong! I do not understand just how much longer it will live, but I will let you know when it lastly passes away. Adios Shadmin - The portion of the 1 pint of water that you handled to put into the battery helped; the 3 days extra trickle charge assisted; the Epsom salts satisfied your belief - how to recondition a dead battery.
ALL the so-called solutions incl epson, alum, cadmium, etc, etc, etc advertisement infinitum do NOTHING!!! But usually damage!! What many posters like to believe is that THEIR!!! treatment made a distinction!! BUT overlook all the other parameters of battery reaction incl temperature, humidity etc in their attempt to make sense of a complicated subject!! (diy recondition car battery). The bare reality is that all automobile charge systems do not completely charge the l/a starter batt- but only around 14v- for a number of various factors.
Bevan - Where does the acid that raised your SG originated from? John- simply returned on line after week after altering ISP!!! The increased sg is due to the dollop in the 15 ml added of Inox Mx2 to each cell! IT definitely is NOT due to decreasing sulfation & therefore raising sg!. reconditioning battery.