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.

Click to expand...

Click to collapse

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.

Aerb Qi Enable Wireless Charging Receiver + Pad

I purchased both the Aerb charging pad and charging receiver. This is my first wireless charging pad/receiver purchase, so I cannot compare to other brands. Below are my observations and experiences:

The charging pad: the surface is hard plastic and a little bit slippery. One side of the charging cable is regular USB but the other side isn't microUSB (it's the round shape), so you have to stick with their cable.

The charging receiver: it fits the phone but very tight to close the phone's back cover. Sorry I don't dare to test the ability of water proof.

The charging current detect on my phone is about the same as the advertised. It's average 670 mAh.

The phone gets hot while charging. The CPU is constantly at 49 Celsius degree and the battery is around 40 Celsius degree. My room temperature is 24 Celsius (75 Fahrenheit degree).

Finally, the warranty isn't stated on the product page but the email follow-up received by River-Tech states they have ONLY 45 days warranty. So I decided to return both of them because I am not confident about them and the phone gets uncomfortably hot during charging.


EDIT: Photo Uploaded
More pictures

I got the Nillkin + the Nillkin Energy Stone charger, and so far it's working fine. It does appear to generate a little heat, but not any more than charging with the cable does in my car. The Nillkin does make the back case bulge a bit, and it's noticible in my Spigen Tough Armor case (it doesn't sit flush anymore on it's back, even though it's got the small raised feet on the corners). I also don't hold much hope that it's still water tight, as the left side does appear to come pretty close to the edge, and is quite thick at that point (no micrometer here so can't tell you my measurements). I didn't have any problems with it charging on the stone, and moved it around several times to make sure it kept connection. It's been charging for about 30 minutes or so, with no disconnects either.

It'll work for now, until I can get one of the super thin ones that appear to be coming out. I wasn't expecting the slight bulge to make my Spigen case sit funny, I could probably get use to it, but it's going to definitely cause a wear-spot over the IC in the Nillkin receiver, I have no doubt there.

Bought mine here.

Any way to disable the sound of the 100% charge, then the reconnect to charge at 99%? I've disabled all the charging stuff in wanum/xposed, but still get the tone that you get when plugging in the device to charge (just like plugging in a USB cable), when you hit 100%, then it stops charging and restarts..

yoonus said:

Hi,

I ordered Yijieneng receiver a while back. I am yet to receive it.
I saw your review later and immediately knew that was a wrong decision.

I was then inclined to order the Nillkin. Especially because they said the coil is printed on the bottom half to keep it away from the copper plate on the outer case and reduce heat.

I have picked up Nokia DT900 and DT910 recently from ATT. Your updated review says Nillkin doesn't work with Nokia. Did you test with both DT900 and DT910?

How about Powerqi. Does both powerqi ones work with DT900 and DT910?

I am not planning to order one immediately. Would it be wise to wait for the pre-production powerqi? Is there a difference in heat generated between 2 powerqi models?

Click to expand...

Click to collapse

The information about the Nillkin and Nokia dt900 and dt910 is probably from my post. I have both Nokia and the Nillkin. It works, but the charging cycles on and off. It wont even reach a minute and it would start the cycle. Afer that dissapointing afternoon, I bought the PWRcard non-slim version from Amazon. Two days later, I finally can charge wirelessly.