Smartphone charging: Toward a faster fill-er-up

Here's what makes our mobile devices ever more spectacular: larger screens, higher resolutions, faster modems, and speedier processors. And here's the oft substantial cost of all that: big-time battery consumption.
Handset makers constantly strive to squeeze more milliamps into a phone battery. The challenge of so while keeping a slim profile is clear to anyone who has used a charging case. But even here there is a tradeoff beyond potential girth. As batteries get larger and chargers send a fixed amount of juice using the microUSB specification, wireless charging times can increase dramatically.
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