Here's how it works:

* Inside a battery, chemical reactions occur between two electrodes and an electrolyte. This process creates a potential difference (voltage) between the electrodes.

* When you connect a circuit to the battery, electrons flow from the negative electrode to the positive electrode. This flow of electrons is what we call an electrical current.

* The chemical energy stored in the battery is gradually converted into electrical energy as the reaction continues. This is what powers your devices.

In essence, batteries are like tiny chemical power plants that store energy in the form of chemical bonds and release it as electrical energy.