Instapark PPD-1000 11,000 mAh External Battery Pack & Charger with Dual USB Ports for iPad2, iPad, iPhone 4S 4 3Gs 3G, iPod Touch (1G 2G 3G 4G 5G), Motorola Droid, HTC Android Phone, Blackberry, Samsung Galaxy Tab 10.1, HTC flyer High-capacity 11,000 mAh polymer Li-ion rechargeable & portable battery pack, powerful enough to supply 50 hours of movie time on iPhone 4 or 17 hours on an iPad Built-in dual USB charging ports for simultaneously charging two devices such as iPhone, iPad and other USB compatible mobile devices Compatible with virtually all USB compatible cell phones, tablet computers, MP3 Players, digital cameras, handheld game consoles & etc. 3-LED battery level indicator & automatic switch on when a device is connected Compact, sleek & stylish design + scratch-resistance rubberized surface