AspenTek 8800mah High Capacity Portable Powerbank with Dual USB Ports and LED Flashlight for Apple Ipad Iphone Tablet Pda Psp Mobile Phones(black) Capacity: 8800 mAh; Built-in reliable Lithium battery cells Input: 5V/1A; Output: USB1=5V/1A; USB2=5V/2.1A(Max) USB output, can charge two devices at the same time LED indicator, on/off button, LED indicator light show the level of power Cycle Life: &gt;500 times;Charging time for mobile phones: 3-4 hours;Charging time for the power bank: One full charging with the 5V 1A adapter requires 8-10 hours, with the 5V 2A adapter 5-6 hours Great for business trips,outdoors sports and traveling