Instapark MP3450E-60 27,000 mAh Dual External Battery Pack & Universal Charger USB Port for Dell, IBM, Lenovo, HP, HTC Laptops, Netbooks, Computers, 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 and much more High-capacity 27,000 mAh Li-ion rechargeable & portable battery pack Simultaneously charges two devices: one 5V USB and the other voltage selectable 8.4V / 12V / 16V / 19V Compatible with virtually all laptop computers, netbooks, USB compatible cell phones, tablet computers, MP3 Players, digital cameras, handheld game consoles & etc. 4-LED battery level indicator & automatic switch on when a device is connected Includes detachable 14,000 mAh battery pack doubles charging capacity