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"krj" wrote in message . .. Capt. Neal® wrote: "krj" wrote in message .. . Capt. Neal® wrote: "Steve Firth" wrote in message .. . Capt. Neal® wrote: You cannot run current though a battery backwards. Oh dear the ammeter on my charger must be telling lies then. It says I can run about 25-50A through the battery backwards. You are guilty of misreading your ammeter. One connects an ammeter in series, does one not? (let's not get into shunts) What you are reading is current flowing into the battery - not through the battery. A battery has no internal circuitry that connects the whole of it together. It is but a series of little dead ends where chemical reactions are used to STORE electrons. When the battery is fully charged, the current drops to little or nothing unless you apply too much current at too high a voltage and then you see the water becoming electrolyzed into hydrogen and oxygen and the current increasing. Never, at any time, does electricity flow THROUGH the internals of a battery unless there is a short or something. A serviceable battery stores electrons. These go in or out but never through. CN Electrons must move within the battery to create the chemical reaction. Movement of electrons is called "current flow" Movement of electrons in a chemical reaction is not called current flow. Movement of electrons *in a circuit* is called current flow. CN CN Now we are talking semantics. So you do admit that there is a movement of electrons through the medium within a battery. krj I admit no such thing. Electrons move into and out of the plates via chemical reactions. Electrons don't move through the plates as in from positive plate to negative plate through the media. If this were the case, there would be no potential and no battery. CN |
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