Batteries fuel nearly every major technological application and utility today. They are responsible for the ignition of automobiles and motorcycles, and house the energy that fuels laptops and mobile phones. From the toys that children play with to the various electrical devices such as shaving clippers, motorized wheelchairs, flashlights, radios and music players that rely on mobile power, what began as a simple Galvanic cell back in 1780 has grown to a billion-dollar industry .
The battery works by creating a circuit by which electrons from one node of the battery can travel to the other positively charged pole. This flow of electrons creates an electric charge. This charge is what provides energy to the various appliances and technological tools that it will be used for. The charge is created by the reaction that occurs with the chemicals on both sides of the battery, and so long as the chemicals inside still have a charge remaining in them, the battery can continue to function as an energy source.
Batteries continue to develop and grow, both as an industry and also as an area for technological sophistication. Already people are developing more sophisticated tools and technologies that allow longer battery life, as well as greater maximization of the battery's charge. An example of this technological charge is the development of automobiles being fueled by electricity, and the design of hybrid cars that use electricity to power the engine in lieu of gasoline under certain speeds.
As an industry, with hundreds of applications for batteries, there are firms that provide the highest quality units and accessories available, be they for work or personal use.