
k tym pinom
http://anuragbhatia.com/electronic-stuf ... -charging/in theory these charging only cables give very fast charging because they don’t put USB data connection. A standard USB port on computer has power limits and device is signaled to pull more power via “shorted data pins”. Usually device is connected to 600mA or even less in data+charging mode, while such shorting brings power to max of port which is usually 1A for most of ports (and 2Amps for iPad charger).