Batteries
Definition
Batteries are portable devices that store chemical potential energy and convert it into electrical energy when needed. They consist of one or more electrochemical cells connected together.
Analogy
Think of batteries as rechargeable power banks for your phone. Just like how you charge your power bank and then use it to charge your phone on the go, batteries store energy and release it when connected to a circuit.
Related terms
Electrochemical cells: Devices that convert chemical energy into electrical energy through redox reactions.
Voltage: The electric potential difference between two points in a circuit, which determines the flow of current.
Capacity: The amount of electrical charge a battery can store, usually measured in ampere-hours (Ah) or milliampere-hours (mAh).
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