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Tips Wireless charging

Discussion in 'Android Devices' started by usernameinuse86, Oct 22, 2012.

  1. usernameinuse86

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    Hey all, so firstly for those who do not know....the Galaxy Note 2 has 4 extra pins visible to you if you take the back cover off. You wil see that two of these pins make contact with the back cover (this is for NFC) and for the other two near the battery...these are available for wireless induction charging.

    The question I have is... does anyone know when the special back covers with the induction coils built in are going to be released? along with the mat needed? I quiet fancy charging my Note 2 wirelessly instead of having to plug it in, especially if it is true that it can charge over a distance of a few feet.

    Gary.
     

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  2. JAJameson2010

    JAJameson2010 Android Enthusiast
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    Oh... Could it charge with a case still on it? That whole concept amazes me...
     
  3. Ballymoss

    Ballymoss Android Expert
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    The Note 2 charges so slowly on the USB 3.0 port of my PC (about 1% in 20 minutes) that USB charging is no longer really possible. I can't see how wireless charging will work either?
     
  4. jxy

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    I think Samsung are being as clear as mud about the whole wireless chargin thing. It was meant to be released in Sept. Something tells me that there has been a f**k up at Samsung HQ!
     
  5. h1r0ll3r

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    These induction chargers can't be, unless something has changed, used to charge devices at distance. They need to be in contact with a mat or whatever charging device there is. And based off other induction chargers I've used, they will almost always charge slower then charging through a wall outlet, possibly even slower then charging through your USB port.

    That said, if an OEM wireless/induction charger becomes available, I'll probably get one just out of convenience. Otherwise, I'll probably just stick to plugging it in to charge it up.

    As for back cases with these contacts built in, assuming the wireless charging thing actually in functional, it probably won't be too long before we start seeing back cases being sold either on eBay or any of the numerous chinese accessories websites there are.
     
  6. Wangta

    Wangta Well-Known Member
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    Check YouTube - there are videos of the note 1 with wireless charging. And I believe they recently released these kits for the SIII.
     
  7. Wangta

    Wangta Well-Known Member
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    Anyone heard of an update on this? I haven't heard a peep.
     
  8. Elantric

    Elantric Android Enthusiast
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    Ive got the AT&T Note2

    And all the Palm Pre Touchstone Wireless bits for the mod.

    But may not be able to find time to do the mod for a few more days.
    Good news, The AT&T Note2 does have the Wireless Charge pins (just like international version)
    But there is a rumor the AT&T firmware may have blocked the Wireless Charge function.
    Stay tuned.
     
  9. Wangta

    Wangta Well-Known Member
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    What the EFF. That would be so messed up...why??? I'll hold on my tongue...for now. Thanks elantric - interested to see what you are able to find out.
     
  10. edlex

    edlex Android Expert
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    I would only get it if it was a wireless car dock. I used to run my palm pre on the charging base in my car and that was super convenient. The question is can/will the induction charging keep up with the note 2 discharge rate while on nav for example.
     
  11. Elantric

    Elantric Android Enthusiast
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    Google search "Wiki Galaxy Note 2"
    The Wikipedia sites covers which carrier blocks specific features
    http://en.m.wikipedia.org/wiki/Samsung_Galaxy_Note_II
    (Edit using IPhone ,since copy paste seems clobbered in Dolphin Browser)

    http://androidforums.com/samsung-galaxy-note-2/645075-usa-carrier-os-fragmentation.html
     
  12. JunBringer

    JunBringer Android Expert
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    Hopefully they use the same Qi standard as the Nexus 4 cause down the line I'm hoping to have both.
     
  13. darrenf

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    Never fear - I installed a touchstone mod Thursday when my Note 2 arrived on the doorstep. It worked first try and has worked without any trouble since. When on the touchstone base it even pops up a dialog saying that it is wirelessly charging. Works great in the car too. Could always be faster but that's been the case with touchstone charging on all phones - it's just exaggerated by the size of this battery.

    -darren
     
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  14. PetiePal

    PetiePal Android Expert
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    USB charges at 500mAh. That's super slow. Modern phones charge at 2.1amps now. Always charge from an AC outlet.

    (For reference the ORIGINAL Droid charged at 500maH lol.)
     
  15. Ballymoss

    Ballymoss Android Expert
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    I've charged from the USB with previous phones including the GS2 and GS3 without issue but the GN2 is the first phone where this isn't possible. I'm sure a lot of uninformed punters will RMA the phone or post here thinking there is something wrong with it.
     
  16. PetiePal

    PetiePal Android Expert
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    It's possible...you're just going to have the phone drain faster than it charges.

    The bigger screen, bigger battery and higher processors draw more current.
     
  17. Ballymoss

    Ballymoss Android Expert
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    Why would the phone drain faster than it charged if I didn't use it and simply left it charging on USB?
     
  18. Wangta

    Wangta Well-Known Member
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    I think he's saying that the power just to have the phone on and idle is greater than other phones, and perhaps greater than the positive charge that is provided via USB.
     
  19. PetiePal

    PetiePal Android Expert
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    Your phone has a certain charging rate, (it can charge 500 via USB, that's a limitation of the charging cable, you can confirm this by going to the settings, and then battery. If it says USB you'll know.)

    So 500mAh...that's roughly 3x slower a charge than on 2.1 from an AC outlet. Some phones, unless you use their specific charger can sometimes not be recognized by the phone and charge slower even on AC. (You can get around this buy purchasing cables that have the data leads on them shorted out, so it's ALWAYS recognized as an AC source, the only downside is you couldn't use that cable for USB connection to the computer.)

    Anyways, the long and short of it really is that as phones have larger capacities, larger screens and consume more power, the older lower amperage charging rates may not be enough to charge the phone WHILE using. (Usually if you had things like tethering, bluetooth, wifi hotspot, video streaming or GPS on)
     
  20. Ballymoss

    Ballymoss Android Expert
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    But is that charging rate USB 2 or 3? 3 charges faster than 2 surely?
     
  21. PetiePal

    PetiePal Android Expert
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    Charging rates between USB are the same. From what I understand only data rates changed from USB 2.0 to the 3.0 spec.
     
  22. Ballymoss

    Ballymoss Android Expert
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  23. PetiePal

    PetiePal Android Expert
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    Ah so a very modest bump,. In a world of 2amp devices now that's still not much, we can assume AC will charge twice as fast then. (With the Note 2 that could be a difference of 2-3 hours)
     
  24. Ballymoss

    Ballymoss Android Expert
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    500 to 900 is a "modest bump" ? Would you rather be paid
     
  25. PetiePal

    PetiePal Android Expert
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    In the world of amperage and electrical engineering, (and speaking as one as well lol) it is.
     

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