Apple has been recently rumored to run a trial production of iPhone models that have sapphire glass displays, but there may be another reason the company is interested in such panels for future devices, aside from increasing the durability of the screen. At a time when the competition is offering wireless charging batteries and developing new means to make the technology more user-friendly, Apple may be working on a totally different kind of wireless battery charging for the next iPhones. One analyst from Seeking Alpha believes he has found evidence that sapphire glass will actually include tiny solar panels that would help you charge iPhone batteries by simply using the power of the sun. Matt Margolis says the iPhone 6 and the 2014 iPod touch (if there will be one) may come with a display capable of increasing battery life.