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New York Times claims that according to their sources, Apple is testing a method to charge the battery wirelessly with magnetic induction for its rumored iWatch.

New York Times reports:

For its wristwatch, Apple has been testing a method to charge the battery wirelessly with magnetic induction, according to a person briefed on the product. A similar technology is already used in some Nokia smartphones – when a phone is placed on a charging plate, an electrical current creates a magnetic field, which creates voltage that powers the phone.

Apple has also experimented with new power-charging methods for a potential smartwatch, people close to the efforts said, though such experiments are years from becoming a reality. The watch is expected to have a curved glass screen, and one idea is to add a solar-charging layer to that screen, which would give power to the device in daylight, they said.

Last week, an analyst discovered a job posting which suggests that Apple may be planning to add a solar-based wireless charging feature to the next generation iPhone by embedding ultra-thin solar cells onto sapphire glass display.

However, I had pointed out in that article the iWatch seemed like a much better candidate for it rather than the iPhone. There have been speculations that Apple could be making this solar-charging sapphire glass display at its new plant in Mesa, Arizona, which could become operational by February.

The report also notes that Apple is also experimenting with charging the battery with movement.

Another experiment at Apple has involved charging the battery through movement, a method that is already used in many modern watches. A person’s arm swinging could operate a tiny charging station that generates and pushes power to the device while walking, according to a patent filed by Apple in 2009.

The report points out that some of these solutions are still years from becoming a reality.

Last year, Chinese website C Technology had claimed that Apple’s smartwatch will come with a 100mAH battery, and will include a wireless charging capabilities that will allow the device to be charged from up to a meter range.

According to some reports, Apple’s decision to use iOS was resulting in battery life issues as the iWatch prototypes were running out of battery in couple of days whereas the internal goal was 4 to 5 days.

Wireless charging would be ideal for the iWatch as charging or remembering to charge is one of the most painful things about wearable devices currently.

[Via New York Times]