Power. Protect. Charge. Sync.

Swappable Battery Module
myPower for iPhone 4 features Tekkeon’s new innovative eSwap™ technology, in which the battery is housed in a separate module that can be exchanged with a fresh battery module while on the go. This enables users to carry extra, fully-charged battery packs, making its additional hours virtually limitless. The battery case comes with the Ultra Slim 1200 mAh battery pack, with extra battery packs -- both the Ultra Slim battery pack and the Ultra Power 2200 mAh battery pack -- available as optional modules.

Preserves iPhone 4 Battery
Equipped with a replaceable efficient lithium polymer battery pack, myPower for iPhone 4 preserves the iPhone battery by bypassing the battery and directly powering (rather than charging) iPhone 4. When plugged into a USB power adapter or computer USB port, myPower for iPhone 4 will simultaneously charge the connected iPhone 4 battery.

Highly Efficient Design Provides Maximum Power
Designed with intelligent circuitry, myPower for iPhone 4 provides an unheard of 95% efficiency which means the condensed lithium polymer battery provides maximum power output without adding substantial weight or size to iPhone 4. Inherent with this advanced battery technology are all the key battery safety features, including built-in protection from over current, overcharging, over discharging, overheating, and short circuiting. myPower for iPhone 4, depending on the battery module, almost doubles or more than doubles the iPhone 4 battery.

Protection from Wear and Tear
myPower for iPhone 4 doubles as a protective case; its hard shell interior and raised edges provide a high level of protection to iPhone 4. Because it encloses the side and back of iPhone 4, the battery case enhances iPhone 4 reception by acting as a bumper. And it comes with myGuard protectors for the front and back of your iPhone 4.

Increases Comfort
With a sleek contour that softens the iPhone 4 edges, and a slip-proof, soft touch finish, myPower for iPhone 4 makes iPhone 4 more comfortable to hold.

Minimal Footprint
At only 1.84 oz (51.5 g) and with a minimalist design that elegantly wraps iPhone 4, myPower for iPhone 4 is almost undetectable.