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Qi chargers (what does CHOE mean exactly?)

I've seen a lot of people say that the best Qi charger to get right now is the ones that's "CHOE upgraded" but I haven't been able to find out exactly what that means. What's different between the CHOE ones and the earlier Qi chargers? I heard some people say it has something to do with the manufacturer being better, is it just built more solidly?
I'm thinking of getting a wireless charger and start using that, but I'm worried about charging efficiency (or lack-there-of) or excess heat harming my battery. So I'm wondering if the CHOE chargers are noted for being more efficient than the average. Saving damage on my micro USB from constantly plugging it in won't do me much good if a year down the line I've ruined the battery.

CHOE is only the brand, I think
There are good and bad qi chargers, look at the amazon reviews for the one that most suits you.
I am buying the Panasonic QE-TM101, moving coil feature is too cool
But there are cheaper qi charger that works very well

mirkoziocan said:
I am buying the Panasonic QE-TM101, moving coil feature is too cool
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Moving coil? What is that?

Philippe Lemay said:
Moving coil? What is that?
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Most chargers have the induction coil (The thing that sends the power to the phone) in a fixed location, meaning that you have to put the phone in a precise spot for it to charge. The Panasonic charger has a mechanism inside that detects where your phone is on the charging pad and moves the coil to the phone so you don't have to fiddle with moving around the phone to find the sweet spot where the phone charges

Wireless charging

Is there a speed difference on qi vs PMA?

Bump

no there is no difference, just different wireless frequency.
here is a quote of mine in another thread:
me said:
the Samsung will work with either charging technology, but Qi charging seems to be the winning "standard" for wireless charging, almost all newer phones are more likely to come with Qi compatibility rather than PMA. so while the PMA might work fine, chances are your $8.99 discontinued charger might not be compatible with your next phone. Nexus 6/5/4/7, Sony Xperia Z3, Motorola, etc All use Qi. i would much rather spend $10 more and at least i know it will work with my future phones since i upgrade almost yearly..
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and
me said:
you won't find any wireless charger at 2A.. they're all 1A at most. i doubt we would ever even see a 2A pad as i can imagine the amount of heat it will generate..
i have this dock/pad: http://www.amazon.com/dp/B00RGIK7P/
which IMO is better than any samsung overprice pad. phone can be held in portrait, landscape or flat like a pad and has 3 coils so it doesn't matter as long as it's touching the surface. it even holds my tablet, and works with 2 of my other devices. just make sure whatever you buy it's Qi and not PMA because even though the S6 supports both, i think in the end Qi wins and becomes the wireless charging standard. most phones coming out are Qi and at least you know the pad you buy will work with future devices.
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tft said:
no there is no difference, just different wireless frequency.
here is a quote of mine in another thread:
and
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Will PMA survive with the help of Galaxy S6?

feihu989 said:
Will PMA survive with the help of Galaxy S6?
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PMA will survive with the help of Starbucks.
They are in the process of merging with A4WP, who are working on Rezence, so won't be going away anytime soon. This is a magnetic resonance system which improves the range to about 5cm - WPC are working on something similar for Qi. Presumably A4WP are interested because this will allow their new standard to be be backwards compatable with existing PMA transmitters (Starbucks!), so they don't have to compete with Qi from scratch.
I would expect most phones with wireless charging to support both standards in the future. It doesn't really cost anything extra and ensures their customers can just charge anywhere.

isangelous said:
PMA will survive with the help of Starbucks.
They are in the process of merging with A4WP, who are working on Rezence, so won't be going away anytime soon. This is a magnetic resonance system which improves the range to about 5cm - WPC are working on something similar for Qi. Presumably A4WP are interested because this will allow their new standard to be be backwards compatable with existing PMA transmitters (Starbucks!), so they don't have to compete with Qi from scratch.
I would expect most phones with wireless charging to support both standards in the future. It doesn't really cost anything extra and ensures their customers can just charge anywhere.
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Yeah that maybe true, but if no mobile phones use PMA, it will still be still be a problem, LG G3 AT&T version supports PMA before, now Galaxy S6 supports PMA, a technique couldn't be developed without the support of Samsung, Moto, HTC ...

feihu989 said:
Will PMA survive with the help of Galaxy S6?
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it will most definitely help spike more PMA device sales, but i don't think one phone will help it long term.
it's only fading slightly slower because of Starbucks as someone else mentioned, and the fact that they are part of the PMA Alliance/Board (including ATT) which might be why they would probably fight tooth and nail continue pushing PMA on mobile devices.

Do you guys actually find wireless chargers useful? I never used one before, but I keep looking for reasons. The cons outweigh the pros by too much at this time for me.

asdfvtn said:
Do you guys actually find wireless chargers useful? I never used one before, but I keep looking for reasons. The cons outweigh the pros by too much at this time for me.
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For me, it's all about the convenience.
I'm never in a situation where I need to charge my phone right now. I typically charge overnight and it gets me through the whole day. If I use it more than usual on a given day, I just plug it in for a bit before I head out if I'm worried it won't make it to bed time.
Having charge pads set up in my common places (nightstand, desk at work) allows me to catch some extra volts when simply putting my phone down like I normally would. Add the fact that the wireless charging then means never having to fumble with cables and plug in the phone ever again, and you get used to the convenience pretty quickly. Plugging in a phone starts feeling like an outdated concept, like something that belongs on a smartphone of yesteryear.

asdfvtn said:
Do you guys actually find wireless chargers useful? I never used one before, but I keep looking for reasons. The cons outweigh the pros by too much at this time for me.
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Honestly, it's the cool factor - for us tech geeks at least. Is it useful? Probably just as much as your cable charger in my opinion - less so with the introduction of fast charging...
---------- Post added at 08:29 PM ---------- Previous post was at 08:23 PM ----------
isangelous said:
PMA will survive with the help of Starbucks.
They are in the process of merging with A4WP, who are working on Rezence, so won't be going away anytime soon. This is a magnetic resonance system which improves the range to about 5cm - WPC are working on something similar for Qi. Presumably A4WP are interested because this will allow their new standard to be be backwards compatable with existing PMA transmitters (Starbucks!), so they don't have to compete with Qi from scratch.
I would expect most phones with wireless charging to support both standards in the future. It doesn't really cost anything extra and ensures their customers can just charge anywhere.
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Hey I don't know for certain, but I also read somewhere that these companies are pushing PMA more because it can transmit and control other type of info, such as how long a customer has been on charge, and then send a coupon to their phone, etc. I don't know if the Qi technology supports that type of technology. You think this might also help?
I am thinking they are probably thinking from a business perspective, where they can charge people to charge their phones...

If you've ever had a micro USB port issue, then you'd appreciate the ability to wireless charge. I plugged and unplugged my S4 so much that the micro USB port stopped working properly. I ended up buying a replacement USB board on ebay. Not going to have to worry about that with the S6 since I'll primarily be using wireless charging in usual charging situations (nightstand, desk, car).

[Q] best qi set up ?

Just wondering the best set up for qi, receiver and pad that work well together. Thanks guys

bazz7777777 said:
Just wondering the best set up for qi, receiver and pad that work well together. Thanks guys
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Technically, any receiver will work well with any charger. The thing you need to look for is a charger that can output 5V at 1A. Pretty much every charger will have that rating so it's hard to mess that one up. As far as the receiver goes, the higher the current output the better (measured in "ma"). And by "better" I mean the phone will charge faster. I have a 1A (1000ma) receiver in my Note 4. It charges pretty quickly, but interferes with NFC. Also, a higher current for a receiver typically means it will also be thicker, making the back of your phone bulge more.
Which charger and receiver are the most durable/well built is a much more difficult question to answer as there are so many to pick from. Just think about how you want to use it, do you want your phone tilted up at you while it's charging? Do you want a super grippy pad so your phone won't walk off the pad when it vibrates? Do you want it to be portable like the mobile pal 2 in 1? The best charger for you will be dependant on how you answer those questions.
Similar questions need to be asked for the receiver. Do you want it to work with NFC? Will you generally just use wireless charging to charge overnight? If so you can get away with a smaller, lower current receiver since you won't need quick charging. If you'll be charging throughout the day you'll want to get a receiver with a higher current rating.
Well, that answer was longer than I originally intended. But I hope it helps!

Thanks TM that's a lot to go on. But a lot of useful information

From my research online, the CHOETECH Stadium seems to be one of the best rated chargers (if you're not going for the official Samsung setup). I've ordered one and am awaiting its arrival, along with the FoneSalesman N4 SlimPWRCard.
http://www.amazon.co.uk/gp/product/B00JA7HNZO
http://www.amazon.co.uk/gp/product/B00OFKS66G
The CHOETECH Stadium has 3 coils as opposed to some chargers that only have one - from what I've read that makes for faster charging and less problems positioning the phone correctly. This is my first foray into wireless charging though, so I'm only repeating what I've read online, not speaking from experience

I use fonesalesman powercard, and my trusty Nokia Qi charger. The thing is you have to find the right spot for the Qi receiver and charger to line up, then it will charge as it should.

Please report backs kinsman when you get chance to try it out thanks

bazz7777777 said:
Please report backs kinsman when you get chance to try it out thanks
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Will do - but sorry, it might be the end of the month before I have a chance to test this all and report back, due to other commitments

I'm using a modified official wireless cover (removed guts) and the tylt vu. It works really well for me.

trussrules said:
I'm using a modified official wireless cover (removed guts) and the tylt vu. It works really well for me.
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That tylt stand looks nice

Kinsman-UK said:
Will do - but sorry, it might be the end of the month before I have a chance to test this all and report back, due to other commitments
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No problem

If anybody interested I went with this set up in the end. 3 coils in stand so works very well
Kosee Qi Smart Wireless Charging Cradle Stand for Samsung Galaxy Note 4 by Kosee http:/
www.amazon.co.uk/dp/B00OZQOK42/ref=cm_sw_r_udp_awd_-sskvb0WEQSDV

bazz7777777 said:
If anybody interested I went with this set up in the end. 3 coils in stand so works very well
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Glad you got sorted out and it's working well. Just got the CHOETECH Stadium (which is also 3 coils) set up and the FoneSalesman N4 SlimPWRCard installed. So far very impressed - the card is unnoticeable except for that slight bulging below the flash, which isn't really visible at all in a case. You can basically 'throw' the phone down onto the charging pad without having to worry too much about positioning. So far I have only used the CHOETECH connected to a PC USB port, not a wall adapter, but even at that, with the phone powered on, I got 10% of charge in an hour (65%-75%). Expecting even better results tonight with the CHOETECH plugged into the Samsung charger and the phone off. In any case, it's great to have that trickle charge while you're sitting working at the computer, without having to plug in. Yay for wireless charging
EDIT: Got just over 10% in half an hour with the charger plugged into the Samsung adaptor, and charging through a UAG case. :good:
EDIT 2: Charged phone overnight from 1% to 100%, it took approximately 5 hours. Good thing is there were no beeps or sounds from either the phone or the charger, and no noticeable 'hum' from the charger either - so good for bedside usage

1A charger for Gear S2 Classic

Gear S2 classic comes with 0.7A charger. Wondering I can use iPhone charger which has output 5V 1A?

I used my Note5 Samsung faster charger without issue.

Throwing juice at the battery faster than it was intended to will shorten its life. Not a big deal for a device with a removable battery but I wouldn't want to do it with my S2. Especially since it already charges in about an hour.

Oops I tend to use my S6 fast charger

A0425A said:
Throwing juice at the battery faster than it was intended to will shorten its life. Not a big deal for a device with a removable battery but I wouldn't want to do it with my S2. Especially since it already charges in about an hour.
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DO you really think the output of the charger determines charging current?

jacobgong said:
DO you really think the output of the charger determines charging current?
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No. Your probably right in this case and it wouldn't. I'm guessing that the charging dock would only draw what it needs. Wireless charging might be a different story. I'd have to read up on it. My comment centered mostly around heat and excess heat created during a faster than normal charge and the long term affects.

A0425A said:
No. Your probably right in this case and it wouldn't. I'm guessing that the charging dock would only draw what it needs. Wireless charging might be a different story. I'd have to read up on it. My comment centered mostly around heat and excess heat created during a faster than normal charge and the long term affects.
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I think it would make the most sense that wireless charging has at least, all the current regulator circuits wired charging has.

I'm using my old Note 2's charger (2.1A) without any issues. Charging circuit inside watch probably limits it to 0.5A anyway.
Sent from my SM-N910T using XDA Free mobile app

I was also wondering about taking the chargerfrommy Note 4 to charge the watch. It would be more comfortable to not always take everything with you and to decimize it to a minimum.
In general you can provide a 5 amps charger for a device that will take 1 amp without a problem because as already explained, the device will draw that amount of current, that it can take. Also with inductive charging there shouldn't be any difference.
You can test how your watch will react to another charger and if you find it getting very hot compared to the genuine charger and find any other incompatibilities, you should stop the charging process but otherwise i can't see any problems.

Retrofit wireless qi charger receiver

Hi,
I want to retrofit wireless charging capability with one of those thin receivers you can put between your phone and the case and then plug into the usb port. The only thing that worries me is a coil or antenna or something which is sitting on top of the battery. I can be seen in this disassembly video: https://youtu.be/kNzDbb-lJzs?t=42 This would probably be covered by the added receiver. What is this? Would covering this up be a problem?

HilmarG said:
Hi,
I want to retrofit wireless charging capability with one of those thin receivers you can put between your phone and the case and then plug into the usb port. The only thing that worries me is a coil or antenna or something which is sitting on top of the battery. I can be seen in this disassembly video: https://youtu.be/kNzDbb-lJzs?t=42 This would probably be covered by the added receiver. What is this? Would covering this up be a problem?
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NFC.
It doesn't seem like a good idea to me.

Mhm, ok. If I don't want to use NFC anyway would this be a problem? I mean, the phone should be able to handle beeing placed on a qi charging station (if someone is ignorant that it does not have this function) without induction of any harmful currents into that antenna, right? So I would just loose the NFC functionality if I shield it with the receiver patch.

HilmarG said:
Mhm, ok. If I don't want to use NFC anyway would this be a problem? I mean, the phone should be able to handle beeing placed on a qi charging station (if someone is ignorant that it does not have this function) without induction of any harmful currents into that antenna, right? So I would just loose the NFC functionality if I shield it with the receiver patch.
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My reaction was not about NFC, it is even possible that it will continue to work, maybe it will be less sensitive. I just expressed my opinion that I personally dislike your intention, because I don't think wireless charging is a killer feature for the ZF6 that we have to regret not having. Moreover, our battery size and space in which it is located and cooled, and so on is not at all adapted for continuous wireless charging and higher charging temperature.
After all, we don't charge so often with our big battery, and when you charging by cable, you charge more environmentally and faster than with the best wireless charger. That is to be remembered, and that is what I meant and what was my point.
For me NFC and big battery are killer features, but wireless charging isn't.

_jis_ said:
...
For me NFC and big battery are killer features, but wireless charging isn't.
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OK, I am getting your point. I just bought this phone, and was not used to having a battery that can go two days easily. I have qi chargers scattered around everywhere (car, office, living room ...) to top up my battery whenever I lay my phone down somewhere. That is starting to seem a bit pointless. I just discovered the function to slowly (and therefore least damaging to the battery) charge and reach 100% at a specified time. Perfect for overnight charging.
Let's give it a few more days to see if I still feel the urge to retrofit wireless charging.
But from the purely technical standpoint, I had another thought. The qi charger only switches on the charging field when it detects a compatible device set down on it. So it would not do that if an untouched Zenfone 6 would be placed on the charger, and there would not be any danger of inducing currents into the NFC antenna and damaging something. Now, if I retrofit a charging pad the charger actually does produce a field when the phone is on it, thats the whole point. No idea how much current would actually be inducted in the NFC antenna, but I am very certain it is not zero. Does someone have the technical background to at least make a guess?