I can transfer data from trough a genuine Apple cable from my iPad to a PC but the same cable will not allow my iPad or iPhone 4s to charge battery using a multi point USB hub connected to a power point. how do I overcome this?
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1Does charging work if you plug the cable directly into the computer (instead of the hub)?– nohillside ♦Commented Jul 3, 2014 at 7:28
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Also see apple.stackexchange.com/questions/274/… and apple.stackexchange.com/questions/7106/ipad-charging-usb-hub– nohillside ♦Commented Jul 3, 2014 at 7:29
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1 Answer
There are 3 kind of USB hubs.
- Unpowered
Non-powered, or passive, USB hubs do not have an external power source and only pull power from the computer's USB port, limiting the maximum power to single USB (splitting).
- Powered
Powered, or active, USB hubs use an external power source to bring each hub port to the same energy level as an on-system port, but not to charge them.
- Powered with Charge capability
mostly have one (or more) of the USB ports capable of charging devices
