I am now the owner of 3 Power Banks. When I leave the house, I'll take first with the moonstone. Since I am with Nexus 5 and iPad 4 a day on the road, it happens sometimes that a battery logs. Most often, the phone rather than my iPad the logs for battery, but both happen. Schwupp just pick up the cool Filztasche out, close the great flat cable to the "high-speed" connection and voila. I am fed. He loads the device faster than my other two Power Banks and does it 2 times. The other Power Banks can not keep up. Neither speed nor battery charging strength (ie how much power per charge actually implemented.) Cool design, the shape is really thought through ... no edges and fits comfortably in your hand. The bag can be wonderfully put into the backpack to come up with.