Are you looking for high capacity batteries for your iphone? Here we recommend you this iphone battery power. If there is a compact, practical and portable mobile battery power in your pocket, that will be great! You can take this iPhone battery power for iPhone 3G/3GS anytime and anywhere. The cell phone battery power is inconspicuously onto the back of iPhone. External rechargeable battery charger is adding only a few millimeters of thickness, but more than doubling the battery runtime. This Mobile Battery power pack provides iPhone 3G/3GS with an additional long hour of talk time. Super Mini, more portable, USB-based adapter directly to your iPhone 3G/3GS, and no longer need to connect the computer, just plug the adapter to connect your iPhone 3G/3GS of USB2.0 cable. It outputs energy via different kinds of connecter plug. With the portable power supply, you needn't worry if there is no electricity. You can use the iPhone battery power for iPhone 3G/3GS charge at home, office or travelling on the road. Well, what are you waiting for? This iPhone battery power is suitable for you! A great accessory you should have!