What you describe is a parallel connection, not a series connection. The current in a series connection will be in the direction of the voltage. If you have 3 cells in series, and one is 1.5 volts, and the second one is .25 volts and the third one is 1.5 volts, then you will have a total of 3.25 volts since they are all the same direction. The current flow will be in the same direction as if the second cell is fully charged, simply the voltage across all 3 will be lower. If the current were to magically reverse through this series then power would be getting added to all 3 batteries. This cannot be done without an outside source of energy. See the second law of thermodynamics for the reason for this. If it did happen, then that would imply a free energy source.
Now as current flows the center battery will continue to lose voltage, and at some point will start developing a voltage across it that is reversed. This is due to the resistance of the battery, at that point it will be acting as a simple resistor and the voltage will be the IR drop per Ohm's law. Now depending on the makeup of the battery it may also develop a reverse voltage as it tries to charge in reverse. Lead acid batteries will do this, carbon zinc will not so much, I do not know about alkaline. Now the voltage will be reversed across the battery, but the current flow will still be the same direction. For instance, if the voltage developed across the battery is -.25 volts, then the total votage in the string will be 2.75 volts (1.5-.25+1.5), but the current will not magically and suddenly at some point stop flowing in the forward direction and reverse to flow in the reverse direction. For the life of me, I cannot figure out how anyone who is in electronics could think it would. You may be a power engineer. I think you might need to review your basic electronic books again, espcially Thevinan and Norton equivalents. Also figure the power going into or out of each battery and any load, the sum has to be 0 and the voltage around the loop must add up to 0 as well. If the current were to reverse in the 3 batteries, then power would be going into all 3 batteries and the load, and coming from nowhere. This is against the law of the conservation of energy. And I am an electronics engineer who has over 30 years of experience in analyzing circuits. If what you say were true, I would use it instead of having to pay the power company for power. Marshall David Bearrow wrote: > At 01:03 PM 6/23/03, you wrote: > > >How could the current flow backwards when you have cells in series and > >none are backwards. If it > >reveresed in one of the cells it would have to reverse in all the cells, > >and energy would be > >going into all the cells, which would require an external power source. It > >is physically > >impossible. If you find a way, let me know, I could use a free energy > >machine. > > I'm a power engineer for AT&T. Cells DO reverse. Usually its caused by deep > discharge of a cell. When one cell in a string drops in voltage below the > voltage of the cell before it and behind it in the string then the other > cells try to bring its voltage up. This causes current to flow the other > direction from the cell in front and the cell behind the cell experiencing > cell reversal in an attempt to equalize the voltage. When this occurs > usually the cell is so damaged it is unable to be charge up and instead it > heats up trying and may blow up if the gasses it produces are unable to > vent quickly enough. > > +----- Bentonite Clay for sale -----+ > http://pages.sbcglobal.net/davebe/clay.html > ¦ David Bearrow ¦ > ¦ [email protected] ¦ > +---- Phone: (972)722-8319 ----+ > > -- > The silver-list is a moderated forum for discussion of colloidal silver. > > Instructions for unsubscribing may be found at: http://silverlist.org > > To post, address your message to: [email protected] > > Silver-list archive: http://escribe.com/health/thesilverlist/index.html > > List maintainer: Mike Devour <[email protected]>
