PowerGen Mobile Ultra is produced with quality in mind! Intelligent circuitry provides safe and highly efficient charging. Top quality battery cells assure long life. PowerGen Mobile is fully compliant with international safety standards. Compatible with Most Cell Phones: Apple:iPhone 5 4S 4 3 3GS / ipod touch/classic/nano/ iPad/ iPad 2 [OEM CABLE REQUIRED] HTC One X V S / Sensation XE XL / Thunderbolt / EVO 3D / EVO 4G / Evo Shift 4g ? Samsung Galaxy S3 S2 / Note 1 2 / Epic 4G / Galaxy Nexus ? Blackberry Curve / Storm 2 / Tour Style / Bold ? Motorola Droid Razr Maxx / Atrix / Bionic ? Nokia N900 / N8 / N97 / C6 / C3 C7 / E7 / X6 ? LG Optimus , 2x , V , S , T / Quantum / Vortex ? Sony Experia ARC Arc / Neo / Play / Mini ? Amazon Kindle Fire, HD, DX and all other kindles ? Others Nook Tablet, Color, NDS, Portable Wifi, PSP (NOT compatible with PSP vista) Specs: - Average Charging time for iPhones 1.5 hrs - Input Charging Time 5 - 6 hrs - Life Cycle > 500 Times - Input: DC 5V / 1000mA - Output: DC 5.3V / 1000mA - Dimension: 3.66x1.69x0.87 inch Package Includes: PGMPP5200 Battery Pack User Guide 2 extention cables and 3 connectors Buy with Confidence Shipped by Amazon 7*24 hours Support 1 Year Limited replacement warranty