That is pretty typical. The silliest thing you can do is to put all type of sulfates into batteries in the hope of fixing a problem. Urban myth will never pass away. Pencil lead can contain some strange substances in addition to carbon (what is in battery reconditioning solution). There are lots of carbon powder producers. Automobile 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 discovered in solar garden lights- after a few years they are tossed out as NiCd is worn- merely cut around leading crimp with hacksaw, unwind 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 & offer off toxic fumes- do outdoors -do not breathe vapours!!! When cadmium is entirely dissolved( & in some cases the electrolyte cadmium mix is a charming green, depending on quality of cadmium from cell maker!)- task done! Got ta say- the mix I have actually contributed to batt cells does not appear to help! In fact- I got ta state 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 verify yes or no! Apart from that, the other thing is that the batt itself must be just gently sulfated).
Still it is good at determining o/c cell/s in batt- pulses increase higher with degree of o/c! have actually seen 1250 volts! Cut open, & broke down pos grid! in 1 cell-others nearly so!. battery reconditioning com. Bevan - I would recommend fine-tuning 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. 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 across the electroplating cell will be under 0. reconditioning battery. 5V. The green you explain would be nickel contamination.
Bevan - That's creative! Why didn't I consider that before? I will attempt it. John - You're one clever gentleman, thanks for the info. Bevan - I believe I may have at long last managed to determine what cadmium sulfate does. It absolutely electroplates out onto the negative grid metal when the battery is deliberately pressed into regulated overcharge.
This assists the lead sulfate nearest the grids to become active again and to be transformed into lead and sulfate ions. Repeated charging, releasing spreads the conductive environment slowly and progressively into the bulk of the lead sulfate. The process seems to have a limitation. recondition a battery. It would appear the trick to attaining 100% desulfation is to determine how to get conduction to spread out into 100% of the sulfate.
Adding gradually more merely produces dendrites and triggers shorts. The explanations provided by desulation merchants that insoluble sulfation undoubtedly coats the plates when batteries are utilized which their treatment strips it away is pure dream. The sulfate stays right where it is. It is converted. While both positive and unfavorable plates can end up being sulfated, the positive sulfation just reverses when the battery is charged.
John - If I comprehend you properly, did you suggested 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- 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 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 put on gassing charge that the voltage at the unfavorable plate favors electroplating.
Copper has an electrochemical possible Cu of +0. 5210V and Cu2 of +0. 3419V. Copper will just 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, sodium, etc. are all far to unfavorable, 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 (how do you recondition a car battery). 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 FACT- your findings MUST be duplicated by other like minded persons- can't see that happening just yet- still, there is hope.
Bevan - I personally might not care less what individuals believe about sulfation. I ran an experiment created to answer yes or no, whether batteries can be desulfated. My experiment revealed that one might get a quarter to a 3rd short-term healing. I would not explain that as a "yes".
Others can quickly repeat my expermiment. Humanity being what it is, some individuals so do not like an unsightly fact getting in the method of a stunning story, their counter arguments will constantly be in words, not deeds. The litmus test: Desulfation remains a struggling industry. Something is not right. There is no conspiracy.
If you want batteries to last longer, deal with them, assist them while they are still functional, do not 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 BROUGHT BACK". Well, anybody can state what they want about sulfation or desulfation, but adding Epsom salt (service= 8 teaspoonfuls Epsom salts liquified in 1 pint distilled water) coupled with a 3 day trickle charge helped my truck battery retain a much better charge.
The battery performed well through the winter season 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 dies. Adios Shadmin - The part of the 1 pint of water that you managed to put into the battery assisted; the 3 days extra trickle charge helped; the Epsom salts pleased your belief - diy recondition car battery.
ALL the so-called treatments incl epson, alum, cadmium, etc, etc, etc ad infinitum do ABSOLUTELY NOTHING!!! However typically harm!! What many posters like to think is that THEIR!!! treatment made a difference!! BUT ignore all the other parameters of battery action incl temperature, humidity etc in their effort to understand a complex subject!! (how to recondition a battery at home). The bare truth is that all vehicle charge systems do not completely charge the l/a starter batt- however just around 14v- for a number of different reasons.
Bevan - Where does the acid that raised your SG come from? John- just got back 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 definitely is NOT due to lowering sulfation & therefore raising sg!. how do you recondition a dead car battery.