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The new era of smart battery generation is approaching, as the source of the charge may be solar, TV or even home Wi-Fi.

>>> Manufacture of rechargeable batteries derived from plants

It will take several years before it is introduced to the market, and Apple is working on ways to charge the battery from solar power to the smart watch screen.

Batteries have long been a dilemma for mobile manufacturers. (Photo: AFP)

This option allows the device to be charged continuously under sunlight, according to the New York Times.

The race between major players like Apple, Google and Samsung in an effort to find traditional battery replacements, as well as extending battery life after each charge.

Traditional batteries are still based on lithium-ion mixtures that have been in use for decades.

The latest generation of devices rely on energy efficient processors and energy saving software algorithms to reduce the load on the battery.

For the smart watch segment, Apple is testing the wireless charging method from magnetic touch.

The same technology has been used in some Nokia smartphones, according to which electricity generates magnetic fields.