Apple has released the $99 iPhone 6s Smart Battery Case (http://tinyurl.com/oheegnp) in black and white. With it you can reportedly charge your iPhone and battery case simultaneously for increased talk time up to 25 hours, Internet use up to 18 hours on LTE, and even longer audio and video playback.
With the Smart Battery Case on, the intelligent battery status is displayed on the iPhone Lock screen and in the Notification Center, so you know how much charge you have left.The Smart Battery Case is engineered specifically for the iPhone 6s and iPhone 6. The soft microfiber lining on the inside helps protect the smartphone, and the soft elastomer hinge design is designed to make it easy to put the case on and take it off again.
On the outside, “the silky, soft-touch finish of the silicone exterior feels great in your hand,” according to Apple. The battery case supports Lightning accessories, such as the Lightning to USB Cable (included with your iPhone) and works with the iPhone Lightning Dock (sold separately).