For Fast Charging of power bank always use a power adapter with Output:DC 5V2A.
Large capacity of 20000mAh yet very portable, making it great for a wide range of applications. Fast charging and recharging. Tripple USB output enabling 3 ports to charge 3 devices at the same time.This product is portable power bank , it charges mainly to Cellphone, Tablet PC , MP3,MP4, PSP, DIGITAL CAMERA etc. Output interface is standrad USB, meeting all of digital device. Output current is 5V, bulit in short circuit protection ,controlling input and output intelligently. Very Practical Charger: Perfect for indoor or outdoor activities like travel, camping or hiking, emergencies, commuters and families. Box includes: Power bank, USB Cable, User Manual.