Areion 4000mah Portable Power Bank for all USB Charged Devices - Purple 4000 mah of capacity,full charge iphone 5s 2 times,full charge Samsung Galaxy S4 1.5 times. Great energy conversion - higher than 80% for better efficiency. The number of cyclic charging is as high as 1000. Mobile storage of electric energy is available. Comprehensively support more than 95% of brands mobile Phone, Pad, mp3, GPS, camera and other digital products. True all-in-one design - the built-in cable is MicroUSB, iPhone/iPad 30 Pins and iPhone/iPad 8 Pin compatible, and also the built in USB cable to any USB charger, meaning no more fuss with separate cables. An intelligent protection system is built in to effectively prevent overcharging and short circuit. It is stable, reliable and safe. Charges via Micro-USB power wire (included) or AC adapter (not included). Input: 5V/1A (4-5 hours to charge via 1A adapter); Output: USB 5V / 1A. Package contents: External Battery Pack, micro USB cable, instruction manual.