Charging S7 by micro USB cable? OH YES!

Discussion in 'Huawei Ideos S7 Technical' started by pa49, May 12, 2011.

  1. pa49

    pa49 Senior Member

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    See the pictures?
    My S7 is charging from any appropriate USB power source by way of a micro USB cable!
    I thought long and hard about this and the difficulty in getting hold of the correct power tip and then having another cable to carry so.......
    I got hold of a couple of short micro male to micro female extension leads.
    I pared the insulation in the middle of the cable and found four wires.
    I know that the red and black carry the power and so I bared these two and wired in the "normal" power cord and the result is a patch cord that allows charging by micro USB cable.
    This gives complete freedom to charge from any suitable source and as can be seen in the pics I'm using an energizer Xpal 18000mAh external power pack for this illustration.
    But, it works from any standard USB A socket as long as I'm not using the device at the time.
    Next step is to put a USB A female socket on the end of the Huawei power supply and Bingo! Standardisation of required cable for all my devices.
    I will "clean up" the connections for daily use and remember we all have a suitable power tip on the power supply that comes with the device.
    I hope the pics are clear enough for this to see what I have done.
    Sync still works with this cable!
     

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    Last edited: May 12, 2011
  2. dgnyberg

    dgnyberg Member

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    OK, I see both a power cord connected and a micro-usb connection.
    If you unplug the power connector, does it still charge?
    I use a 9000mah portable battery to recharge when not
    near an outlet or in my car. It works great, and I get
    3-4 complete charges before I have to recharge the
    portable battery.
     
  3. pa49

    pa49 Senior Member

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    The S7, as has been mentioned adnausium, does not charge through it's micro USB port.
    I have never and do not now claim this. Nor will I ever until I can get inside and rewire the damn thing.
    I'm glad about your external pack.
     
  4. pa49

    pa49 Senior Member

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    I finally made this patch cable.
    The connector is larger than I would have liked but it works and is robust enough.
     

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  5. ere95588

    ere95588 Senior Member

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    circuit diagram?Simplified drawing
     
  6. hcpass

    hcpass Member

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    Can you explain the utilitie of wirering the usb port and the power port at the same time? Why not directly the external battery to the the power port and let the usb port free?
     
  7. Tom T

    Tom T Senior Member

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    I think the point is you can have this connected to your PC and both sync and charge. Very cool really.
     
  8. pa49

    pa49 Senior Member

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    Well there are only 4 wires in the sync cable black and red (power) and white and green (data).
    There are two in the power cable black and red (power again obviously).
    Make sure the same colours are reconected when constructing and that's all here is to it really.
     
  9. pa49

    pa49 Senior Member

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    That's correct! And from ANY USB port.
    Plus you only need one micro USB cable for all charging/syncing purposes.
    I leave the patch cable connected at all times and don't have to worry about the 3.2mm power tip being a non standard item.
     
  10. hcpass

    hcpass Member

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    okayyyy....!!! The confusion come for me that you show an external battery to show your tip cable! for me it wasn't necessary to use this kind of cable to charge the S7 with an external battery. I think it should be better to show your tip in real situation with a laptop (USB) to show your multitasking cable. very usefull!!

    Thanks

    Regards

    Stéph.
     
  11. pa49

    pa49 Senior Member

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    Sorry for any confusion, but, I'm still not sure what caused it.
    External pwer pack, PC, laptop, many wall chargers, ALL HAVE USB PORT.
    You can therefore use any and all of them with just one cable.
     
  12. hcpass

    hcpass Member

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    No matter don't worry, it's only a question of personnal point of view, the most important thing is that you've make a good tip for the community.

    Thanks.

    Stéph.
     
  13. jayoscar

    jayoscar Member

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    I've some reserve point on this part. As you can check the charger output is 2A instead of USB output 500mA. I doubt this is not a good idea for long term charging. Does it will reduce lifespan of your device as current is not fulfil requirement.I've other huawei device using same 2A 5V adpater, and now can't use a mod 1A 5V provide current to it.
     
  14. Spider

    Spider Administrator Staff Member

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    I'm pretty sure the device will be O.K., and it may be better for the battery. The problem is it'll take 4X as long to charge when using the USB compared to the charger.
     
  15. lostintheworld

    lostintheworld Member

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    i have a question,how would you charge an android tabelt if the charger port detatched from the device and is inside the tablet,is there any way to possibly charge it.
     

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