Computerworld - https://www.computerworld.com/article/3242154/mobile-wireless/powermat-to-upgrade-to-15w-wireless-charging-support-apples-new-iphones.html#tk.rss_all
Powermat plans to release an upgrade to its wireless charging technology in January that will enable 15-watt power transfers through a 1.5-in. thick solid surface and provide support for new Apple iPhones and other Qi-enabled devices.
The wireless charging company also plans to release an under-tabletop product that allows users to simply place enabled mobile devices atop a desk, for example, to begin receiving a charge.
By moving from 5 watts to 15 watts with the upcoming software upgrade, Powermat chargers will transfer power to a mobile device at the same rate as a traditional charging cable, according to Powermat CTO Itay