Published: 09th May 2007
Batteries: who doesn't know them, or use them in one way or another? Nowadays, they come in all shapes and sizes, and the electricity they can deliver varies greatly. They power watches, cameras, mobile phones, remote controls, laptops, wireless keyboards and wireless mice, radios, electric toothbrushes, children's toys, torches... and not to forget: cars and car keys. They're so much part of our everyday life that we hardly ever think about them, except when the batteries are flat or we have run out of them altogether and can't take the photo, or listen to Queen on our Discman or, worst case scenario: open the car doors, let alone start the car. But what is a battery, who invented it and when?
