DUBLIN--(BUSINESS WIRE)--Research and Markets (http://www.researchandmarkets.com/research/63nxlh/power_bank_market) has announced the addition of the "Power Bank Market by Capacity Range, Number of USB Port, Energy Source, Technology, Application, and by Region - Global Forecast to 2020" report to their offering. Power Bank Market by Capacity Range (500mAh to Above 1500mAh), Number of USB Port, Energy Source, Technology (Lithium-ION and Lithium-Polymer), Application (Smartphones, Tablets, and P