Wireless Charging on your SGS4 in 20 minutes...

Discussion in 'Samsung Galaxy S4' started by Dalvik_Cache, Jun 12, 2013.

  1. Dalvik_Cache

    Dalvik_Cache Super Moderator
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    I have to admit that when I got my SGS4 I was rather excited about it's wireless charging abilities. I have the Frost white SGS4 with the S-View back plate and cover. Let me start of by saying I LOVE my S-View cover. I picked up a Nokia inductance charging pad from my office, brought it home and eagerly put my S4 on the pad; boy was I disappointed. After 5-10 times of picking my phone up and putting it back down, all with no pretty little charge LED coming on, I realized something wasn't right. I immediately hopped and Google and realized that my shiny new S4 was "wireless charging capable", not wireless charging equipped. I have several friends who made the same mistake, so don't feel bad if you did. In fact, I personally believe that Samsung may have been just a little deceptive with their marketing, but that's a story for another day.


    Anyhow, I set out to find a solution to my problem and stumbled upon the "Wireless Charger Receiver Module" by Qi. I got mine of Amazon for about $12. That's a pretty cheap price in my humble opinion to add wireless charging support. The Qi pad essentially gets placed on the back of the battery in such a way that the two contacts touch the two charging terminals on the back of the phone. It has a small 3M sticky strip you pull off to make it more permanent. Once that's done, just put your back-plate back on, and you are ready to go. If you go looking for this gem make sure you get the one for the S4. The Internet is littered with the charging pads for the S3's and it's sometimes difficult to get the right one. The one for the S3 may or may not work, I won't be the girl trying it! :)




    Tip: I found that the easiest way to align the charging pad on the battery is to put the battery in the phone, place the contacts against the pads, and then remove the tap and stick it to the battery. I have included a few pics for you.


    View attachment 63778 View attachment 63779 View attachment 63780 View attachment 63781
     
    #1 Dalvik_Cache, Jun 12, 2013
    Last edited: Jun 12, 2013
  2. wicked

    wicked Administrator
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    Nice! How fast does it charge Mandy? I'm guessing not as fast as standard charger the phone came with?

    ⇝ Tapatalked from my Galaxy S4 ⇜
     
  3. Dalvik_Cache

    Dalvik_Cache Super Moderator
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    I haven't done a full charge on it yet... It seems pretty quick. I would say it's a bit slower, but doesn't seem to be a lot.

     
  4. FoxKat

    FoxKat Super Moderator
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    Nice write up, Mandy! :D

    Sent from my DROID RAZR using Tapatalk 2
     
  5. bkdodger

    bkdodger Super Moderator
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    Good info Mandy.. Nice write up... :thumbup:

    Noted 2x~4 beta
     
  6. jtcsifl

    jtcsifl Member

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    I'm guessing this wouldn't work under an Otterbox Commuter case or any hard external case???
     
  7. Dalvik_Cache

    Dalvik_Cache Super Moderator
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    I would be surprised if it didn't. I have the DNA as well, and it has a thick case on it and works fine. Ill put a case on it tonight and let you know!

     
  8. FoxKat

    FoxKat Super Moderator
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    Mandy is right...as long as the phone is within a reasonable range of the magnetic field created by the charging pad, it will charge. The deeper into the center of that field, the more efficient the charging will be. The first generation pads had specific markings to show the center of the field and in some cases even magnets to assure proper placement.

    View attachment 63785
    More advanced charging pads use multiple coils in a matrix so you don't have to be so careful where you've placed the phone in relation to the pad.

    View attachment 63786 View attachment 63787

    Patent US8169185 - System and method for inductive charging of portable devices - Google Patents

    Inductive charging is also used for CARS and the technology is moving along fast!!

    View attachment 63788

    Inductive charging is the solution against the wild growing of charging poles. | Europe is ready for large scale electric transport and HECO > EV and PHEV Charging.

    Inductive charging for cars has been around since the 1990s (early electric vehicles), but hasn't reached the levels now being toyed with since these cars of today require far more current, and are designed to travel much greater distances on a charge.

    They're even toying with wireless electric buses which charge while traveling on the road. DailyTech - USU Researchers Trial Wireless Charging of Electric Bus
     
    #8 FoxKat, Jun 13, 2013
    Last edited: Jun 13, 2013
  9. FoxKat

    FoxKat Super Moderator
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    The only way a case would prevent inductive charging (other than due to proximity), is if it's a completely closed ferrous (steel), case which would interrupt the magnetic field and prevent it from reaching the receiving coil(s). This method is used to create "shielded speakers" where the large magnet structure on the rear of the speaker is either completely enclosed in a steel shell, or a second magnet is fused to the rear with an opposite polarity - effectively canceling the magnetic field created by the speaker and allowing the speaker to be placed close to sensitive electronics such as Phosphor Gun (picture tube), TVs.

    Mumetal » How does a Magnetic Shield work?
     
  10. ktklein72

    ktklein72 Member

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    How about a link to the one you purchased on Amazon?
     
  11. FoxKat

    FoxKat Super Moderator
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  12. ktklein72

    ktklein72 Member

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    Appears to be the same one. I wasn't even able to find that one when I was searching. Who knows what else might be hiding on Amazon's site!?!?!
     
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