If you have for example a 2 A power supply which communicates A performance with Apple signal 2, many devices can not recognize this and invite only slowly with 0.5 A. The other way round may iPhones not load quickly on many Android devices designed power supplies because they do not understand the signal. Remedy creates an adapter plug, which generates the appropriate signal. Is exactly what the adapter plug from PortaPow. It signaled a 1.5 A load port with the Android version in accordance with the USB Battery Charging Specification by combining D + and D- and the right signal for 2 A charging current transmitted at the Apple variant (see video). The adapter plugs are meticulously crafted and, therefore, do what they should.
The problem is that neither in the manual nor in the product description, there is an indication that you should only use this adapter plug if the power supply can also provide as much electricity as the connected consumer concerns. Quite the opposite is even shown as a product photo a laptop, at 1.5 amps drawn, although USB2 laptop connections are only designed for 0.5 amps. In consequence of such overloads can damage the motherboard of the laptop. Worse, few China power supplies without adequate protection emit a certain degree of congestion through the input voltage of 230 Volt to USB and therefore grilling connected devices. Consumers must therefore be important to point out that such a plug adapter may be used only if the voltage source is sufficiently powerful. This can easily be ascertained by looking at the nameplate. If consumers are out but not pointed, but on the contrary show product images, what must not be done, is put together innocently, do not belong together. I consider, therefore, from a total for the incorrect labeling on 2 star.
