Apple Inc. an American multinational company has shown its excellence in hardware products such as Mac line of computers, the iPod, the iPhone, and the iPad. Apple was the first to achieve mass market adoption of such a user interface that included particular pre-programmed touch gestures. Since a long time there had not been any improvement in the battery system and the more the apps being downloaded, faster the charge goes down, which makes it unable for the device to perform as per mentioned in product description. Apple has acquired a ‘shake to charge’ patent that uses electromagnetic induction to convert everyday motions into extra battery life.Patent 8,362,751, issued Jan. 29, covers the use of printed coils that can harness power through electro-magnetic induction
In Apple’s system a small lubricated magnet would move across a series of printed coils inside an iPhone or iPod, inducing a small current which could be used to generate power and charge the battery. What sets Apple’s design apart from the various radios and flashlights that already use this approach is the flat coils which can be easily printed using modern circuit production techniques. This means that even while you are jogging or walking, the device gets charged. But do not expect this to be the flagship feature on the iPhone 5S. Smartphones use far more power than this induction system could ever replenish, even with continuous vigorous shaking. But as their components get more energy efficient, somewhere way down the line this could be a plausible alternative to plugging in your phone every night.
Unfortunately this patent is being critisized due to the existence of shake to charge flashlights, watches and other devices in the market since a decade.