Hello there! Couple questions: 1. When a battery's terminals are connected by a copper wire, why is that called a circuit? Aren't the electrons moving, as a result of voltage difference, from the anion compartment of the battery to the cation compartment in a one-way direction? The fact they don't loop back around seems to disqualify the setup as a circuit. 2. Speaking of those electrons, wouldn't the voltage for a battery immediately drop the second the terminals are connected, and do so at a slower and slower rate until each compartment is equal in charge? Because of the highest charge difference at the beginning, the electrons would be pushed harder from the negative to positively charged areas. Then as time goes on and the potential difference is reduced (due to the electrons having brought their negative charge over to the other side) the total net force would be reduced and so on until there would be no charge difference. The above is how I would imagine a battery to work, by pushing electrons from one side to the other due to the voltage difference. Yet, my model requires the voltage to be constantly decreasing from the moment the battery's terminals are connected, and for this rate of decrease to be at its highest at the beginning of the connection. The problem with this, is that I don't observe such behavior. Batteries seem to have a fairly constant voltage early in their lives. Could someone explain the problem with my description of a battery? Thanks!