A real miracle charge

The Power Bank I bought and successfully geteset last Sunday as a mobile energy storage. The vexing issue everyone knows, 2h train ride and the way to play with your smartphone since a battery is already close to the limit. If man still runs the entire day at a trade show and then again around 2h moves back by train, my battery was already twice been empty when I'm not the great battery pack would have with it.
The battery pack has 4 outputs with different currents (0.5A; 1.3A; 1.0A and 2.1A). Thus man the same time, invite multiple devices, even an iPad !! On the day I have in any case 2 Mobile (iPhone 6 and Nokia Lumia) can fully recharge almost twice. At first, the battery pack is very large and heavy but who knows the power of the battery and the estimates can live with the size. Stop is not so for the small bag for all but which are always very long road with a camera and want to upload it via USB and constant Mobile reception not want to miss out, which was to buy this battery pack.