How does a battery store and give out energy?
Battery's Patient Magic
How does a battery store and give out energy?

A battery looks like the dullest thing in the world — a quiet little can sitting in a drawer. But inside, it's holding its breath, packed with chemical energy, waiting for the moment you let it go. Pull the trigger, and that patient little can wakes up.
To see how, we have to peek inside. A battery has two ends, a plus and a minus, and they're made of two different materials that really want to react with each other. Think of them as two crowds on opposite sides of a room, and the whole game is about one crowd handing tiny pieces to the other.
