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What is this fiddely bit?

  1. Feb 15, 2015 #1

    DaveC426913

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    I recently bought this pocket charger for my phone.
    Simple device, power in, power out.
    But it has this extra bit whose purpose I cannot figure out.

    Ideas?
    recharger.jpg
     

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    Last edited: Feb 15, 2015
  2. jcsd
  3. Feb 15, 2015 #2

    jedishrfu

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    Maybe it was used to power itself for testing?
     
  4. Feb 15, 2015 #3

    Borg

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    My guess would be that you can use a USB connection from your computer to charge your phone instead of the regular charger. The other possibility is that you could charge a second phone.
     
  5. Feb 15, 2015 #4

    DaveC426913

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    How? There's one power in and one power out.

    How?
    The slot in which it fits will not take a miniUSB connector. It's too small.

    With a factory power connector? Could be, yeah.
     
    Last edited: Feb 15, 2015
  6. Feb 15, 2015 #5

    DaveC426913

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    OK, with a more careful look in better light, I can see way down into the slot that is exposed when I take the slug out.

    There are at least two copper terminals inside the hole that are in a position where a long thin connector could make contact. So, it must be a factory reset/configuration port way down there.
     
  7. Feb 15, 2015 #6

    jedishrfu

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    My y post was meant to be humorous but it is curious that the rubbery connector can plug into one end and that maybe there was a second adapter which they didn't give you but instead gave you this dummy plug.
     
  8. Feb 15, 2015 #7

    Borg

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    Couldn't tell the size from the picture other than it looked like a USB shape.
     
  9. Feb 15, 2015 #8

    DaveC426913

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    I see. I hadnt thought that there could be accessories I don't know about.
     
  10. Feb 15, 2015 #9

    DaveC426913

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    Oh I see, you mean could you plug a male mini-USB into that slot? No. It is both too narrow and too deep. (Hard to tell that the slot is almost a cm deep. It is as deep as the plastic slug is long.)
     
  11. Feb 15, 2015 #10

    jedishrfu

    Staff: Mentor

    Also the plastic side of the dummy plug looks like a connector from my old dumb cell phone.
     
  12. Feb 15, 2015 #11

    jedishrfu

    Staff: Mentor

    Here's a photot I found of common plugs

    http://www.aliexpress.com/item/10-in-1-Multifunction-USB-charging-cable-splitter-adapter-cell-phone-universal-charger-adapter-plug-charging/1121355240.html [Broken]
     
    Last edited by a moderator: May 7, 2017
  13. Feb 15, 2015 #12

    DaveC426913

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    A very close look reveals two wire pins that are certainly mounted directly to the circuit board.
    I may not know whether they're for configuration or for power, but I'm satisfied that I understand the purpose of the plastic fiddely bit.
    It is simply a lid for this port.

    slot.jpg
     
  14. Feb 15, 2015 #13

    DaveC426913

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    One of the first things I tried to do was see if the power out would reach the power in. :wink:
    It does not.
     
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