With its use: my smartphone properly connect to my notebook, for against it charges the battery only 'when he wants' = I tried with a conventional cable and the battery will start charging at each branch.
I should mention that I connected the USB 2.0 portion in the wrong way the first time and it is therefore possible that it has damaged the ..? If this is the case, it is still fragile ...
In summary, a product of an excellent quality / price but which makes me fear as to its life. To be continued.
