Is it possible to recharge a cell phone's battery even if USB is disabled or blocked on the system?

  • USB is disabled on the computer? – soandos Aug 22 '11 at 7:44
  • 7
    use a wallwart. – Journeyman Geek Aug 22 '11 at 7:47
  • @soandos , not sure of Disable or blocked it's basically a client PC where no data transfer supposed to happen. – Sujoy Aug 22 '11 at 8:08
  • Yeah its most probably disabled, it won't work. – soandos Aug 22 '11 at 8:08
  • @Sujoy, if the answer answers your question, please mark it as the answer by clicking the check mark next to the answer. Welcome to SuperUser. – soandos Aug 22 '11 at 8:11

Blocked and disabled are not the same thing to my understanding. Blocked means the USB port I/O is restricted but the port still has power, in which case it will able to charge your phone. Disabled means the USB port has no power whatsover, in which case it cannot charge anything.


If the USB port on computer is disabled, then it will not charge.

  • I was surprised by this answer, but I looked it up. You are right. – Keltari Aug 22 '11 at 7:57
  • The reason is basically because it is not getting any power though the mobo. This means no data, and no power to charge anything. – soandos Aug 22 '11 at 7:58
  • I would have thought they would still be powered, just not passing date. You learn something new every day. – Keltari Aug 22 '11 at 7:59
  • If I want something disabled, why would I want to keep it powered? – soandos Aug 22 '11 at 8:02
  • the confusion is understandable. I also would have thought the mobo would keep the port powered only. Useful knowledge. – Sirex Aug 22 '11 at 8:32

How are the mice and keyboard connected? Via a PS2 port? You could take a PS2 to USB adapter and charge your phone that way. If you dont have one, most IT geeks have them lying around. I just checked and I have 10 sitting in a box. :P

  • Nice one. could be another way to charge phone. Sorry could not vote up; don't have required reputation , will do once I get that. :) – Sujoy Aug 24 '11 at 5:33

Yes, it is possible to charge even though the USB is blocked. Most of the time, it is the data ports that are blocked leaving the power ports open for power supply.

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