I have already ordered several charging cables from China - who landed in all electronic waste, because due to the design - (cross section / resistance) were hardly in particular the cables used to be able to have sufficient current to flow.
Unfortunately - and that led to the devaluation now at 3 stars - is the processing of the plug bad. This leads to contact problems in the USB connectors and the leads in my Power Bank for switching off the current port ... Just that can be annoying if you have the phone on the power bank in a backpack and finds after 4 hours: IT WAS NOT had landed ....
In the cause of research then noticed that the USB-A connector is built very cheaply and obviously has contact problems with their own power bank from the house EasyAcc. And if the power bank is unloaded (wobbles = power failure) then it switches itself off unfortunately.
Therefore, the deductions and the 3 star - that's a bad combination - but a smooth processing defect on the cable!