After ordering the Power Bank has been delivered immediately. The device exceeds my expectations. I expect that I can at least twice load an external device. Meanwhile, I have my S3 already 5 x loaded (with battery level of approximately 32%) and even an i-phone. It was still current in the device.
The Power Bank charges extremely fast on the phone - many times faster than on a laptop. Am of the opinion that it does not go faster on current, rather the reverse. It is good that neither the power nor the Bank Phone at any time be hot. Not even the plugs or cables.
Cables or adapters are plenty here. For all kinds of devices with Micro-USB, Mini-USB, Samsung, i-phone etc.
I invite the Power Bank by the way into the outlet. Charging takes many hours (about 12), but is also in accordance with carefully what is always better for the battery. This is probably also the reason why nothing is hot - not even warm. During charging, a red light. Once this expires, the unit is full and can be removed from power and is now ready for use anywhere.
One does not see how much power the device has downed by charging the external devices. But you can be, yes calculate approximately how long will such a charge. For my Samsung that would mathematically 5 times where I let it never run completely empty, always go to the current time. In any case, you can survive quite normally with this power bank a few days ;-))
The price is cheap, easy to handle, the benefit is very high, supply promptly. Unconditional purchase recommendation.