Apple's iPhones have long been a source of battery anxiety, with third-party battery cases easing these worries by offering extra juice when you need it. Now, Apple has unveiled its own Smart Battery Case for the iPhone 6 and iPhone 6S, quietly posting the product on its online stores (as spotted by Pocket Lint). The case costs $99 and Apple says it extends the iPhone's battery life to up to 18 hours of internet usage on LTE networks, up to 20 hours of video playback, and as much as 25 hours of increased talk time.

similar in looks to other apple cases — apart from the bump

Press photos show that the product slips onto the iPhone like a regular case, rather than separating into pieces and clipping around like some third-party solutions. It's available in two colors — charcoal and white — with a microfiber lining on the inside and silicone exterior. All in all, it looks pretty similar to Apple's current cases, although, of course, with that extra bump on the back and chin on the bottom.

The Smart Battery Case is charged via a standard Lightning port, meaning that it's compatible with official docks and that users won't have to carry around extra cables. Users can also charge their iPhone and the battery case simultaneously, and Apple says that when the case is in use, an "intelligent battery status" will be displayed on the iPhone's lock screen and in its notification center. There's no word on whether similar cases for the iPhone 6 Plus, 6S Plus, or older iPhones will be available.