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 legends will never ever die. Pencil lead can contain some strange compounds in addition to carbon (reconditioning car battery). There are lots of carbon powder producers. Vehicle tires 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 discovered in solar garden lights- after a couple of years they are thrown away as NiCd is broken- merely cut around top crimp with hacksaw, decipher 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 poisonous fumes- do outdoors -do not breathe vapours!!! When cadmium is entirely dissolved( & in some cases the electrolyte cadmium mix is a beautiful green, depending on quality of cadmium from cell maker!)- task done! Got ta say- the mix I have included to batt cells does not seem to help! In reality- I got ta state the ONLY thing I utilized that worked was INOX MX2( in 1 batt up until now- 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 should be just lightly sulfated).
Still it is proficient at determining o/c cell/s in batt- pulses go up higher with degree of o/c! have seen 1250 volts! Cut open, & broke down pos grid! in 1 cell-others practically so!. what is battery reconditioning. Bevan - I would recommend improving the cadmium by making the cadmium you recuperated 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 real voltage throughout the electroplating cell will be under 0. car battery reconditioning. 5V. The green you explain would be nickel contamination.
Bevan - That's creative! Why didn't I consider that prior to? I will attempt it. John - You're one clever gentleman, thanks for the info. Bevan - I believe I might have at long last managed to figure out what cadmium sulfate does. It certainly electroplates out onto the unfavorable grid metal when the battery is deliberately pushed into controlled 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, releasing spreads the conductive environment slowly and progressively into the bulk of the lead sulfate. The procedure seems to have a limit. recondition a car battery. It would appear the secret to achieving 100% desulfation is to find out how to get conduction to spread out into 100% of the sulfate.
Including gradually more just creates dendrites and causes shorts. The explanations given by desulation merchants that insoluble sulfation undoubtedly coats the plates when batteries are used which their treatment strips it away is pure dream. The sulfate remains right where it is. It is transformed. While both positive and negative plates can end up being sulfated, the positive sulfation simply reverses when the battery is charged.
John - If I understand you properly, did you indicated all the cadmium does is electroplating itself on the negative grid?If so, would not 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 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 negative 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, triggering 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 advantage to happen.
Bevan - It is not a theory. I ran the experiments. Built lead-acid cells in glass containers. I observed and measured (how do you recondition a dead 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 become FACT- your findings MUST be duplicated by other like minded individuals- can't see that occurring just yet- 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 might get a quarter to a third short-term healing. I would not explain that as a "yes".
Others can easily repeat my expermiment. Human nature being what it is, some individuals so do not like an ugly truth getting in the way of a stunning story, their counter arguments will always be in words, not deeds. The base test: Desulfation remains a struggling market. Something is wrong. There is no conspiracy.
If you want batteries to last longer, deal with them, assist them while they are still serviceable, do not fuss over them after they "signed off". We do not feed medicine to dead people. Why do it to batteries? The experiment is explained on "CAN BATTERIES BE RESTORED". 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 helped my truck battery maintain a better charge.
The battery carried out well through the winter after my treatment and is still going strong! I do not know how much longer it will live, however I will let you understand when it finally passes away. Adios Shadmin - The part of the 1 pint of water that you handled to put into the battery assisted; the 3 days additional trickle charge assisted; the Epsom salts pleased your belief - how to recondition a dead 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 criteria of battery action incl temp, humidity etc in their effort to make sense of a complex subject!! (how do you recondition a car battery). The bare reality is that all automobile 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 changing ISP!!! The increased sg is because of the dollop in the 15 ml added of Inox Mx2 to each cell! IT absolutely is NOT due to reducing sulfation & thus raising sg!. battery reconditioning com.