I thought with Intenso can not be much wrong as it indeed is a relatively common brand. The capacity of the unit seemed quite satisfactory, especially considering the reviews of other reads that up to three times fully charge their cell phones. But the fact is that is already in the manual that the device up to 30 percent of the stored energy itself requires and this energy is lost through heat development and such cheese. My Galaxy Note 3 I now have 2 times connected to the unit and it has not passed both times my phone only to load completely approximately once. That part is good when the battery fades with time to recharge during the day a few percent, but not more. There are, however, cheaper, more manageable and stronger alternative. No purchase recommendation
Update: after three faulty usage. The USB port fell inwards into the device
