Ever since I was a young child, I have always wondered how such tiny, compact batteries are able to power up the biggest devices. How is it that the battery can transform the energy in a circuit to power up a load?
In a battery, there is a positive and a negative terminal. From the negative terminal, electrons produced and are trying to reach the positive terminal. In a circuit, there must be a conductor that connects the negative terminal (the battery) to the load, and from the load to the positive terminal. The electrons are pushed along the conductor and into the load, which then powers it. The amount of electrons that flow through a load, the same amount of electrons exit the load.
The reason batteries are still have power after a long time, is because, unless electrons are flowing from the negative to the positive terminal, the chemical reaction does not take place.
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