So I imagine innovative Ladetechnk before ...

It is ever quite good that the USB interface has been defined as a current standard for mobile devices. Only it has thus not much improved because you must carry around a lot of these chargers with a penchant for technology. And these are also quite picky with the food on offer!
Specifically with me: camera on the belt, tablet, smartphone, mobile hotspot, Powerpack ... All necessary chargers combines this USB Desktop charger in one device .. Poor devices have here a pitfall, since not all loaded to the USB ports becomes.
Dopey happens when you load or said load and the next morning was a not device ready for use on the night.
The PowerIQ store prevents this problem, adjusts itself to the device and is really fed stream (using a USB Power Monitor measured) for a complete charge available - and that in a small compact package, the slightly larger as a common USB charger.
My constant companion on the road - and a device which lives in the office where it replaces the mains unit and cable clutter ...