Confirmed - AT&T Lumia 830 does have Qi wireless charging support

[Windows Central]

The AT&T Lumia 830 Windows Phone does, in fact, has support for Qi wireless charging. Many collectively crossed their fingers when Windows Central first reported that AT&T would leave the Qi wireless feature in place. There was some concern that a last minute decision would be made, and AT&T would remove this feature as they did with the Lumia 1020 and 925.

Full story from the WindowsCentral blog...