Powerology Ultra Mini 20000mAh Power Bank - is a specially designed power source that combines a high 20000mAh battery capacity with minimal dimensions in a single body. Featuring a smaller and lighter construction than other standard external batteries on the market, it can be carried easily in a pocket or small bag without any inconvenience. Modern fast charging interfaces restore the energy of your smartphones, tablets, and other digital gadgets in minimum time and with maximum efficiency. Multiple output ports enable the safe and parallel simultaneous charging of more than one device. The built-in smart microchip system fully safeguards connected equipment from overvoltage, overheating, and short circuits.