The storage battery is a lead-acid, electrochemical device used for storing energy in its chemical form. The battery does not actually store electricity, but converts an electrical charge into chemical energy that is stored until the battery terminals are connected to a closed external circuit. When the circuit is closed, the chemical energy inside the battery is transformed back into electrical energy through a chemical action, and, as a result, current flows through the circuit.The passage best supports the statement that a lead-acid battery stores