Quote:
Originally Posted by kaiser
Two batteries of the same type and condition connected, will perfectly equalize their charges given time. They will behave exactly like two buckets of water connected with a pipe at the bottom.
It is physically impossible to have anything else.
Current will flow until the charge density is equal in both batteries, at which state the voltage will be the same.
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That is an absolutely ridiculous statement to make, batteries are nothing like buckets in their behavior, they need an excess of voltage to make the current flow. As said, even a good fully charged batteries voltage is only around 12.7v. Have you ever come across a battery charger which only outputs 12.7v? The answer to which is no and the reason being that at 12.7v no charge current can possibly flow.
Try this simple experiment....
Connect one flat and one fully charged battery together, via an ammeter. You will get a small initial current flow as the voltage on the two batteries equalise, then there will be no further flow at all, nothing at all, zilch. The reason being that their is no voltage differential between the batteries to make the current flow from one to the other.
If you have a bank of batteries connected in parallel, standard practice is to do what is called an equalising charge occasionally. The batteries are left on charge for an extended period, to ensure all of the batteries are brought up to a fully charged state. The reason for that equalising charge is that the low batteries cannot be charged from the fully charged batteries, because they lack the voltage to transfer their charge.
Once again - batteries are not buckets, nor do they behave like buckets! The public are being fooled by the sellers of these items and if you doubt that you only need read the many reviews which confirm they do not work.