"Meindert Sprang" wrote in message ...
"Capt. NealŪ" wrote in message
...
I'm talking about two 12v batteries in a series circuit meaning one
positive pole connected
to the negative pole of the other battery. The left over positive and
negative poles must be
connected to some sort of circuit and load such as a light bulb or
electronic gadget that will
cause current to flow through the entire circuit.
In such a circuit, neither battery will charge the other, they will only be
discharged together through the load.
The same current will flow through both batteries, and in both batteries you
can regard the current as "flowing out" of the positive pole.
To charge a battery, current must be flowing "into" the positive pole, which
can only happen if you connect two batteries in parallel, where one is more
discharged than the other.
Meindert
You are wrong. You cannot run current though a battery backwards. You charge with a charging
source that has higher voltage than the battery and by wiring it so there exists a complete
circuit.
When I connect my photovoltaic to my 12v battery the battery takes a charge because the
photovoltaics operate at 16v at ten amps current. The 16v, being higher than the 12v in the
batteries causes a chemical reaction to occur between the sponge lead and the solid lead
and the acid electrolyte and electrons are stored The chemical reaction reverses when the
photovoltaics are removed and a load placed upon the batteries and electrons are released.
Current never goes backwards in the battery.
This is a common misconception and I'm very surprised so-called engineers fall prey to it.
CN
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