Science Common Sense

1211 - What is a battery?

A battery is a device that stores energy, which is used to power things like toys, phones, and laptops. It works by having two parts: a positive side and a negative side. When these two parts are connected, energy flows out and makes the device work. Batteries can be big or small, and they come in different types, like the ones you put in your flashlight or the big ones in cars.