Belkin has given us the US$99.99 Grip Power Battery Case for the iPhone 5, which doubles the battery life of the Apple smartphone.

Offering a combination of power and style, the Grip Power Battery Case is available in a range of color combinations and incorporates a grip bumper design to offer extra protection for the iPhone. The powerful 2000 mAh battery capacity of the case doubles the smartphone’s battery life so users can talk, text and browse the web twice as long on one charge than with the iPhone alone.

It's easy to use. Just press and hold the power switch to turn the battery power on and off, and press it once to see the battery's status.

The Belkin Grip Power Battery Case comes with a Micro-USB charging cable. Plug the cable into the side of your case and, in one charging session, you'll have full iPhone power and backup power whenever you need it.

Putting on the Grip Power Battery Case takes two steps. First, slide your iPhone 5 into the battery pack and connect it to the built-in Lightning connector. Then, snap on the outer shock-resistant bumper. And -- voila! -- you're ready to go.

In addition to extended battery life, the Grip Power Battery Case has a soft, comfortable grip design, a back-up shock-resistant bumper and an anti-glare camera ring that won’t interfere with the camera’s flash.