This mobile power bank devices charger large capacity with flash light is the solution for your devices on the go out or while travelling. You can charge several devices simultaneously. Also you can use it a flash light.
This is a portable power bank, it's mainly used for charging digital equipment . It is built in rechargable Li-on battery with charging bi Micro USB interface. Dual USB outputs ( 5 v 1 A  and 5 v 2.1. A can meet various demands pf digitalservices. Protection of short- circuit and constant voltage with current limited functions will support you a safe charging. Built in  MCU ( micro control Unit) intelligent control charging and discharging . The LCD display shows the work condition and balance power percent.
 
Please check if the USB and the cable contact correctly when charging.