Update 7/20/14: The TYLT ENERGI is now available!
TYLT has just announced their upcoming ENERGI Sliding Power Case, a Galaxy S5 Battery Case that maintains the same level of waterproofing that Samsung designed their device around and an all-new kind of screen protector called the ALIN, which guarantees perfect installation.
TYLT has equipped the ENERGI with a 2,800 mAh battery, which matches the capacity of the OEM battery included with the Galaxy S5. There is also an LED light that indicates battery level. You will also retain all of the functionality of your device, including the Fingerprint Scanner and Heart Rate Monitor. Inner protective cases will be available in Blue or Gray, and Pink and Purple will be separate options. TPE, which is a more rugged type of material than TPU, is used for shock absorption and added protection. TPE stands for thermoplastic elastomer, for the curious.
The ENERGI will retail for $79.99 when it is released, and the ALIN will retail for $24.99.