3rd party Qi wireless receiver

If the mods think this shouldn't have a individual thread, please combine this with the existing thread.

Before I go into details about each receiver, I would like to point out that all third party receiver does produce a slight bulge, whether is does bulge alot or little it's there, the bulge is usually the location of the chipset/IC on the receiver.
If you require a receiver without the bulge go for the samsung OEM cover.

To reduce the thickness and bulge, users can cut or file down certain part of the inside of the cover, you can see the photo below, this part also prevent most of the receiver from positioning direct in the center of the phone, so the receiver is mostly placed toward one side and on the battery.



Of the 8 receiver, one of the receiver is a pre production model and is not available for purchase as of write, for other receiver please do a search, I will not provide any links.

If you have any questions please feel free to ask, but before asking, most of the answers will probably be answered already in this thread, so please search within this thread first, question that has been answered before in the thread will be ignored.

http://xdaforums.com/showthread.php?t=2718027



1
Brand: Nillkin
Coil Type: PCB copper etched
Chipset/IC: TI
Support QI/NFC

The receiver is specially cut so that it fits inside the battery cover and overcome any parts that sticks out of the cover.
The receiver is made very thin and has very little bulge.
Nillkins claims that this receiver retains the IP67 specification.
Will work with most transmitters, with transmitter that has only one coil and is more sensitive you will have a hard time getting it to charge properly, I couldn't even get this receiver to charge with samsung's new square charger, with the rectangular one, you have to place the phone alittle higher for it to charge.
With a charger that has 3 coils, 7 coils or a moving coil, this receiver works very well.

Updated: Does not work with the following charger, Iffu, new version of the samsung, Nokia, Araree and Powerholic.
May apply to others.





2
Brand: Powerqi
Coil Type: copper strand coil
Chipset/IC: TI
Support QI/NFC

Only just been release about 2 week ago, ultra thin and produce little bulge to the cover, works well with many chargers.






3
Brand: Powerqi
Coil Type: Flexi coil
Chipset/IC: TI
Support QI/NFC

During my testing the receiver works very well, the phone needs to placed a little bit down, as the coils is located further down, it is also claimed and been tested to work with the IP67 specification.
The receiver is ultra thin, and from all of the receiver listed here and one's that I have used, this is the thinnest one to date.









4
Brand: Yijieneng
Coil Type: Flexi coil
Chipset/IC: TI
Support QI/NFC


One of the most known companies in wireless charging, I have recommended this brand for a good few years, they have produced many good products, but this receiver is a fail, it's the thickest receiver in the test, it's also very difficult to place into the phone, it took me many time to get the receiver to work with the stock cover, and only manage to get the cover to close properly, I have tested this with a S view cover, it's fits into the cover very tight, but cannot get the two to work, even when it's suppose to work. This is one of the 2 receiver listed here that suppose to works with a S View cover.
Once you get this receiver to work, there is no problem with this and any other transmitter.







5
Brand: itian/Energy
Coil Type: Flexi coil
Chipset/IC: Unknown
Support QI/NFC

The first receiver on the market for the S5, work well, very thin but does produce alot of heat.








6
Brand: Unknown
Coil Type: Copper strand coil
Chipset/IC: TI
Support QI/NFC

This is the second receiver listed here that can be used with S View cover, this receiver is very similar to the Yijieneng, but it's completely different, and is not made by Yijieneng, it's ultra thin, and works well with all charger that I have used.







7
Brand: Unknown
Coil Type: Flexi coil
Chipset/IC: Unknown
Support QI/NFC

The smallest receiver made for the S5, and does not affect NFC





8
Brand: Unknown
Coil Type: Copper strand coil
Chipset/IC: Unknown
Support QI/NFC

initial test seems alright, quite thin, even when the cover is on, with minimum bulge, not too fussy about what charger is used.





9
Brand: Yijieneng
Coil Type: Copper strand coil
Chipset/IC: TI
Support QI/PMA/NFC


1st third party receiver to support both QI standard (WPC) and PMA (Duracell Powrmat), this receiver also supports the use of the S view cover for wake up and sleep function, anyone after a ultra thin receiver can look elsewhere, this receiver is not thin.
Further testing needs to done to confirm the compactiblity of both standard, although initial testing QI has been tested to work.
A must have receiver if you live in the USA where PMA charging is available in all starbucks cafe and some other cafe, and if qi is used as the main charging standard for you smartphone.

yoonus said:

Thanks for the detailed info on receiver.
Can you please let me know what the difference between different coil types?
Which once is better? with respect to thickness, charging speed, heat generation, placement on Qi charger etc.

Thanks.

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There isn't a better one, they all have their pro's and con's.

Theoretical flexi coil is consider to be the thinnest one which it is, but it all depend on the manufacture when they decide to use the magnetic shield, also know as flexi magnet that inductive charging is required, which can be very thin or thick, this will decide on the factor on the thickness.
being thin mean it will fit under the phones OEM cover with minimum bulge, but the disadvantage is, flexi coil produces more heat than the other two as it's not as efficient and has more energy loss.

copper strand coil, is the traditional coil with a ferite magnet (mix of stone and metal), and easily get's cracked, but has the less heat as it's much more efficient, but being much thicker, some manufacture has started to use flexi magnet to reduce the thickness.

PCB copper etched in between both, but cost much more to produce, so many manufacture does not use this method, upto now for what I know, nillkin and sandisk is the only manufacture to use this, nillkin being approximate twice the price of many of the available receiver in the market, and sandisk, being 5 times the price.

with all this being said, receiver listed here using the copper coils, are actually the thinner ones see the 2nd and 6th receiver.

from left to right, flexi coil, PCB and copper coil.

Adren alin said:

Good job! I prefer to get qi charging Receiver for my Galaxy S5. I find the lowest price only $6.49, I'm not sure the price is reasonable, whether the product is good, what's your suggest?

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I won't go on the price, and it's very hard to comment when I cannot see the actual receiver, there are many good quality one's and many many crap one's.

it's best to indicate which one you require.

Cholerabob said:

I use the last one " Unknown" charges without any problem, not that much heat even after a full night on charger. Cover closes perfectly, integrity of IP67 is kept, IMHO. Bought off Ebay with Qi charger ( 12.95$ ), no trouble finding charge position.

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During charging the heat is usually charging between 30-75%, detection is pretty good and has minimum bulge, have you put the phone into water for the IP 67, even if it seems like the receiver is within the rubber gasket seal, it does not mean it will seal the phone from water.

apeas2 said:

Did you test NFC on any of these receivers?

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I don't really use NFC, but the 7th one is the smallest receiver on the market, so I had to buy it to try it out.

matty_g_8 said:

Which one would you recommend out of the lot also what kind of charging pad do you use

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I have many charger pad, panasonic, 2 NTT DOCOMO, 3 metrans, 2 samsung, sanwa, iffy, powerqi and yijieneng.

I'm still testing out the receiver to see which one to use, but i'm drawn to the square powerqi, nillkin and non branded with S view support receiver.

Philtastic said:

Do either of the Powerqi models (or other receivers) block the NFC? And do you know when the pre-production one will be released?

Thanks!

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I have tested them, all updated in first post. As for the powerqi pre-production model, not too sure when it's released, I had to beg them to let me have it, they only had one for testing, but i'm sure if it gets released they should be available sometime next month.

abbandon said:

today installed absolutely generic "noname" one from China. phone backside heated moderately, as well a pad.
nfc works same as before. Package is bundled - the charger pad 10w + two receivers (blue and black - have no see diff, both works the same).
When places on the pad phone show message "wireless charging ... bla-bla" as expected.
Absolutely generic noname.
Copper coil and produce a slight bulge (because of controller board)
Photo are attached:

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Thanks for the information, I know about that receiver, there was no reason for me to purchase it.

I just purchased a new transmitter and it seem like all the receivers list above charges cool to very slightly warm, apart from the nillkins which will not charge.
This transmitter is the only charger I have that does not have much heat, cost me USD 20 after discount, it's under the name a araree, but also has the same product under the name powerholic.

elesbb said:

How thick is the back cover on the stock cover? Maybe you could sand a bit away on the inside to help reduce buldge?

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check first post.