article_snippet.sent: Reports were made by Alistair Barr in the Wall Street Journal.
article_snippet.sent: This is vital for Google's Project Loon balloons designed to float near the stratosphere and provide internet to wider areas.
article_snippet.sent: Apple's tests were carried out in March 2015 with a pre-production Apple Watch and software paired with an iPhone using pre-production software.
article_snippet.sent: Apple also can't catch fire like lithium-ion technology.
article_snippet.sent: A number of Apple devices, including the iPhone 5S and iPad Air are powered by chips based around ARM technology.