I have a couple different Qi chargers (desk, car, etc). I want to stick NFC tags on them to trigger appropriate actions for each location. I know some places sell chargers w/ builtin NFC, so it should be possible.
I got some of these black nfc tags and they work great - off of the chargers. Once I stick them on a charger, the phone rarely reads them. It usually will read if I wiggle the phone around and up and down, but not by just placing the phone on the charger.
Any way to make this more reliable? Or is the Qi just interfering with the NFC too much?
timropp said:
I have a couple different Qi chargers (desk, car, etc). I want to stick NFC tags on them to trigger appropriate actions for each location. I know some places sell chargers w/ builtin NFC, so it should be possible.
I got some of these black nfc tags and they work great - off of the chargers. Once I stick them on a charger, the phone rarely reads them. It usually will read if I wiggle the phone around and up and down, but not by just placing the phone on the charger.
Any way to make this more reliable? Or is the Qi just interfering with the NFC too much?
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Click to collapse
i imagine its the qi interfering with the NFC. apparently the phone send a bit of current to the nfc tags when it reads them, so thats prolly part of the problem.
Yeah, NFC tags get their "power" from your phone's battery's magnetic field - that's what triggers them. If they are on the charger then the charger itself is emitting a field and that's going to interfere with the ability of the phone to trigger the tag. I would suggest trying different placements on the charger to see if there's a place you can put one that will work, but likely you'll have to put it on the surface beside the charger and not the charger itself... or get a charger that has the nfc built in.
Sorry if this has already been posted. I have the Note 4 and I am new to wireless charging. I wanted a car solution that's completely wireless (ie charging and audio). I've been looking at The Air Dock but I'm still not sure if that will be the best solution. Does anyone have any experience with that?
Also, I'm thinking that I will go with an internal receiver but I just read that there are 1mm thick ones and 0.5mm thick ones. Guess I should try to get a 0.5mm thick receiver? What is the max current that I can get with these coils? Is it enough to charge the phone while running Google Maps, Pandora, bluetooth, etc?
I will probably want a case as well. What do I need to know so that it will work with a wireless charger? I saw some car chargers that have you put a slim metal plate in your case so that magnets can hold onto the phone, which I like. Should I look for something like this? Will that also work with The Air Dock?
Sorry about all the questions! I'm just trying to make sure I get the best dock for my phone.
nelagster said:
Sorry if this has already been posted. I have the Note 4 and I am new to wireless charging. I wanted a car solution that's completely wireless (ie charging and audio). I've been looking at The Air Dock but I'm still not sure if that will be the best solution. Does anyone have any experience with that?
Also, I'm thinking that I will go with an internal receiver but I just read that there are 1mm thick ones and 0.5mm thick ones. Guess I should try to get a 0.5mm thick receiver? What is the max current that I can get with these coils? Is it enough to charge the phone while running Google Maps, Pandora, bluetooth, etc?
I will probably want a case as well. What do I need to know so that it will work with a wireless charger? I saw some car chargers that have you put a slim metal plate in your case so that magnets can hold onto the phone, which I like. Should I look for something like this? Will that also work with The Air Dock?
Sorry about all the questions! I'm just trying to make sure I get the best dock for my phone.
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Just a suggestion, wireless charging is not capable of taking advantage of the Quick Charge 2.0 feature and to my way of thinking the car would be the place you'd want the fast charging. I got an Incipio Quick Charge 2.0 12v adapter for my car.
mty msi said:
Just a suggestion, wireless charging is not capable of taking advantage of the Quick Charge 2.0 feature and to my way of thinking the car would be the place you'd want the fast charging. I got an Incipio Quick Charge 2.0 12v adapter for my car.
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Click to collapse
Thanks for the suggestion but I was wondering if it was possible to wireless charge and still run all these apps. I understand it won't be a quick charge or anything but as long as the charge is enough to keep the battery at neutral or positive charge then that's fine. I would assume the answer is yes
nelagster said:
Thanks for the suggestion but I was wondering if it was possible to wireless charge and still run all these apps. I understand it won't be a quick charge or anything but as long as the charge is enough to keep the battery at neutral or positive charge then that's fine. I would assume the answer is yes
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With my Note 3, a 2 amp wired charger was barely able to charge with Google Navigation running. I think you would lose charge doing the same thing with a wireless charger.
Sent from my SM-N910T using Tapatalk
Dang I was worried about that. So what is the max current that wireless coils can do? Is it 1 amp?
JimSmith94 said:
With my Note 3, a 2 amp wired charger was barely able to charge with Google Navigation running. I think you would lose charge doing the same thing with a wireless charger.
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Agreed. Current wireless charging probably wouldn't be able to keep up with the high battery demands of navigation, streaming music, Bluetooth, and the screen.
Trouble with Note 4
So I got my new Air Dock 2.0 in and I'm having trouble with getting the Note 4 to stick with this case even though it's glossy. Also, (and I knew this would be an issue, ugh!) the wireless adapter inside the phone isn't CENTERED in the phone so of course it won't wireless charge when the phone is CENTERED on the Air Dock!! This makes me so mad! The damn adapters should be centered so any dock will work once the phone is centered...
Lastly, does anybody have any apps that will automatically launch once connected to the Air Dock??
nelagster said:
So I got my new Air Dock 2.0 in and I'm having trouble with getting the Note 4 to stick with this case even though it's glossy. Also, (and I knew this would be an issue, ugh!) the wireless adapter inside the phone isn't CENTERED in the phone so of course it won't wireless charge when the phone is CENTERED on the Air Dock!! This makes me so mad! The damn adapters should be centered so any dock will work once the phone is centered...
Lastly, does anybody have any apps that will automatically launch once connected to the Air Dock??
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Tasker can do this.
Ok but how can I trigger it in the car? If I use wireless triggers won't it also trigger it when I get home and charge my phone on my wireless charger?
Sent from my Nexus 5 using XDA Free mobile app
I am looking for something fairly specific: a magnetic/sticky cd slot mount with wireless charging. Does anyone know if they exist and if so any recommendations?
alex22808 said:
I am looking for something fairly specific: a magnetic/sticky cd slot mount with wireless charging. Does anyone know if they exist and if so any recommendations?
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Yeah you can get what I have...the Air Dock http://www.theairdock.com/collections/all
nelagster said:
Yeah you can get what I have...the Air Dock http://www.theairdock.com/collections/all
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are you using it with the samsung wireless charging back? if so, any chance of some pics? also, are you using the nano-foam or magnets and for either, how "grippy" is it? the roads around me are full of potholes so cant have my note 4 flying off.
Ugh so I'm frustrated with the Air Dock. It's GREAT with my Nexus 5...it seems to be designed especially for that. My wife's Note 4? Not so much. I bought the wireless adapter that you put in the back of the phone to activate wireless charging but it takes all of 1 second to realize the coil inside that adapter is not centered with the phone. It's directly over the battery which is offset. So when the phone is put on the Air Dock it needs to be slightly off of the Air Dock to get a good charge going. Well this means there's less contact between the phone and Air Dock. The other thing I noticed is the case on the phone matters as well. Originally I had a softer, flat case on the phone which worked okay with the Air Dock but then that got dirty so my wife got a more glossy one that has a slight curve in the back. I think this may actually be caused a little by the wireless adapter protruding in the back. It's a very tight case so it's more noticeable. I can provide links to the cases if you want. I emailed the Air Dock with a picture of the phone's wireless adapter but they just said to try to use the magnetic sticker included and keep it clean. The magnetic sticker doesn't do much, especially for a big phone like the Note 4. I'm tempted to actually cut a really thin sheet of metal and stick it back there instead. Sorry this is long but I'm frustrated and ended up buying the iBolt dock for my wife which is fine but I really wanted to use the Air Dock. It's a great concept it's just not the best design. I even had my friend 3D print a sort of dock and then stuffed those super powerful magnets in it and it sort of worked but then it blocked the charging too much. Ugh
Something I haven't seen mentioned about the 4/4 XL is the ability to use a magnetic mounts and not break wireless charging.
On my 3 xl the plate for the magnetic mounts would interfere with the wireless coil, and I had to give up wireless charging as a result. I knew if I could position the plate high enough that it wouldn't be a problem, but on my 3 xl to do so would block the fingerprint sensor.
Positioning the mount on the 4XL, as is shown in the picture, does allow wireless charging to work flawlessly and also supports a magnetic mount for my bathtub, hot tub, pool, car, etc.
seems like that should make it into more reviews.
Is the plate getting hot? I had mine near that spot and it would get hot during wireless charging. I've since moved it close to the bottom edge and everything is fine.
airmaxx23 said:
Is the plate getting hot? I had mine near that spot and it would get hot during wireless charging. I've since moved it close to the bottom edge and everything is fine.
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No, mine isn't getting hot. Not sure what the difference would be - perhaps my case which is kind of thick? (OtterBox?)
Instead of putting a plate in I bought a wireless charger for my car and attached it to the magnet mount that was there. It fit right in the little knob piece. Here is a couple of pics. It works perfectly. This particular one opens and closes the grips by itself.
I know there's about three threads on the general subject, but didn't want to resurrect something that's only similar from 3 months ago and thread jack.
Simply put, I am looking for a magnetic mount wireless charger for the car. I'm a delivery driver and need to be able to just grab my phone and jump out of the car and not asshole with waiting for it to automatically release my phone or pushing a button to release the phone, etc.
Волк said:
I know there's about three threads on the general subject, but didn't want to resurrect something that's only similar from 3 months ago and thread jack.
Simply put, I am looking for a magnetic mount wireless charger for the car. I'm a delivery driver and need to be able to just grab my phone and jump out of the car and not asshole with waiting for it to automatically release my phone or pushing a button to release the phone, etc.
Click to expand...
Click to collapse
I have been using a Scosche MagicMount Pro Charge for the last few months but it's been spotty at best. The magnets seemed like they were too close to the charging coil so the placement was very finicky for me. If it did charge, it would get too hot and would throttle down. This was with a dedicated AC vent blowing cool air on it. In the end, the heat didn't seem worth it for me. Not sure if their newer MagicMount3 is any better, but I don't really wanna throw down the money to try out something that might end up with the same results.
(TL;DR) In short, they exist, but as a concept, they really just don't work well. Here's a link to one anyway: https://www.amazon.com/dp/B07CXV4RXQ that I mention later on. It appears to be the same, or similar to the one tysj mentioned, so, it may or may not work, it really depends on the positioning of the magnets.
Thing is, like tysj found out the hard way, it's not really something that can be done (effectively, anyway), because as you probably know, Qi charging isn't magic. It's inductive charging. (Keep in mind this is a simplified explanation, it's actually a bit more complicated than this, it uses inductive resonance charging which has a bit more to it allowing it to be more efficient and have a longer range, but at the base it's still an inductive charger, just with a capacitor to set the resonant frequency and range with peak efficiency) Meaning, the charger is running electricity (AC) through its coil, which creates a changing magnetic field, which induces an electric current (AC) in the coil in the device you're charging (it's converted to DC before it charges your battery.)
Essentially, it goes (Wall AC) -> DC (wall-wart/car) -> AC -> coil -> changing magnetic field -> coil -> AC -> DC
So, placing a pair of permanent magnets in the middle of this, right where the changing magnetic field needs to be, only serves to block the ability for the charger to change the magnetic field, which it tries to compensate for by putting more power through its coil. Let's just say that in a fight between the coil and a permanent magnet strong enough to hold up your phone, the coil loses, as it is no where strong enough to change the magnetic field of the magnet. While the charging coil's magnetic field and that of the magnets may, in places, be shaped in such a way to allow some of the chargers coil's magnetic field to reach the device coil if precisely positioned, most wont, and the permanent magnets will just further resist any changing magnetic fields in the device coil.
It could possibly be done with very careful and precise positioning of magnets, like this one from Amazon.com, for instance, although based on reviews (and tysj's reply) I'm unsure of how well it will work, and it certainly depends a LOT on where you put the magnets on your phone/in the case. That's a link with no referral code, and no tracking info, I always strip them when sharing, as a courtesy just the link. Since the location of the coil in the phone isn't standardized, it's hard to say. I'm not an electrical engineer (so there are most likely errors in here), so I honestly couldn't tell you. But as someone who has a (very) basic understanding of electromagnetism, including induction, this is really not a good idea.
In the past, I had a magnet in my phone's case for just that reason, and trying to use the wireless charger just created heat, and didn't really charge the device. And that was without a magnet on the charger, too.
If you want to read up on how inductive charging (including Qi) works, the Wikipedia article is pretty good. Wikipedia: Inductive Charging
I know you said that you
need to be able to just grab my phone and jump out of the car and not asshole with waiting for it to automatically release my phone or pushing a button to release the phone, etc.
Click to expand...
Click to collapse
but, given the above, I strongly suggest a Qi mount with an automatic grip for essentially the same functionality, but in a way that actually works. Look around for something quick. I'm unsure if I would recommend the Scosche magnetic one above, just due to how you would need to get the magnet placement nearly perfect. It might be worth a try, if it doesn't work you can always return it.
Something like this one on Amazon.com (there are many different designs like it, this is just an example.) It uses an IR sensor to detect when your phone approaches, then opens, and closes once its on the stand, then it releases by touching a button. It's not quite as easy as a magnetic mount, but at least it'll wirelessly charge.
Either that, or use a magnetic mount and a charging cable.
If you do end up buying a Scosche one, do let us know how it works out.
There's also one that requires a certain case to use, so I imagine there might be more of those. IMHO those are more likely to consistently work, as the magnets are pre-placed in the exact position needed and in a way that wont get in the way of the coils.
Good luck!
Pitaka MagEZ case and their magnetic wireless charger for car, works nice for me
DeeZZ_NuuZZ said:
Pitaka MagEZ case and their magnetic wireless charger for car, works nice for me
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Glad that Pitaka is finally making a magnetic case for the Pixel 4. I got tired of waiting for them, so I just bought a generic carbon fiber case and used these metal tabs https://www.moshi.com/en/product/snapto-tabs/gray. You can line them up perfectly to work with the Pitaka wireless charger or probably any other charger. The company that makes the tabs also sell a wireless charger.
Does your Pitaka charger activate fast charging on the PIxel? I have the older version of the charger and it charges slowly.
slicck said:
Glad that Pitaka is finally making a magnetic case for the Pixel 4. I got tired of waiting for them, so I just bought a generic carbon fiber case and used these metal tabs https://www.moshi.com/en/product/snapto-tabs/gray. You can line them up perfectly to work with the Pitaka wireless charger or probably any other charger. The company that makes the tabs also sell a wireless charger.
Does your Pitaka charger activate fast charging on the PIxel? I have the older version of the charger and it charges slowly.
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Click to collapse
It seems to charge slow, need to use ampere and see how much exactly.
Which case did you got and which charger to have fast charging?
Max I got with pitaka is 560ma or so, gonna send it back and get another charger which really gives 10w... Sadly, it is nice but slow charging
Волк said:
I know there's about three threads on the general subject, but didn't want to resurrect something that's only similar from 3 months ago and thread jack.
Simply put, I am looking for a magnetic mount wireless charger for the car. I'm a delivery driver and need to be able to just grab my phone and jump out of the car and not asshole with waiting for it to automatically release my phone or pushing a button to release the phone, etc.
Click to expand...
Click to collapse
Have you looked at the gravity type of holder? They have bottom fingers that when pushed down close the sides of the holder. So you can put your phone in and out without waiting. I tried one once and it worked until the vehicle went over a big bump - the phone went up, the sides opened and then... well, you can imagine. Not fun while highway driving. I only tried one (I don't remember the model) so there may be others that would give better results, at least for your use case.
For some reason I haven't gotten notifications that people have been commenting, only just today that somebody quoted me.
After a couple of other tries and no success, I went with the scosche magic Mount 3. The maintenance are probably far enough out away from the coil that there's little interference to the actual induction. Seems to work well, I want to say 1300 or 1600 mAh. Obviously not as good as a word connection, but decent nonetheless. Keep having trouble with the cables connecting in the USBC port as well, so wireless charging is a must for the car.
As for heat, it's a tough call. I'm in SoCal, so I actually have to put a towel over the mount while at work so it isn't a fireball when I am done working.
I did notice on the lock screen that it will sometimes tell me to adjust the alignment for better charging.
Ironically I fell into a new job and now it's more because of cable or port dero rather than speed, lol.
Волк said:
For some reason I haven't gotten notifications that people have been commenting, only just today that somebody quoted me.
After a couple of other tries and no success, I went with the scosche magic Mount 3. The maintenance are probably far enough out away from the coil that there's little interference to the actual induction. Seems to work well, I want to say 1300 or 1600 mAh. Obviously not as good as a word connection, but decent nonetheless. Keep having trouble with the cables connecting in the USBC port as well, so wireless charging is a must for the car.
As for heat, it's a tough call. I'm in SoCal, so I actually have to put a towel over the mount while at work so it isn't a fireball when I am done working.
I did notice on the lock screen that it will sometimes tell me to adjust the alignment for better charging.
Ironically I fell into a new job and now it's more because of cable or port dero rather than speed, lol.
Click to expand...
Click to collapse
Thanks.
Yea I ordered another one to test, also reached out to pitaka support. Gonna try few things and report back.
Another cable and another adaptor with qc3 charging
bdt1995 said:
(TL;DR) In short, they exist, but as a concept, they really just don't work well. Here's a link to one anyway: https://www.amazon.com/dp/B07CXV4RXQ that I mention later on. It appears to be the same, or similar to the one tysj mentioned, so, it may or may not work, it really depends on the positioning of the magnets.
Thing is, like tysj found out the hard way, it's not really something that can be done (effectively, anyway), because as you probably know, Qi charging isn't magic. It's inductive charging. (Keep in mind this is a simplified explanation, it's actually a bit more complicated than this, it uses inductive resonance charging which has a bit more to it allowing it to be more efficient and have a longer range, but at the base it's still an inductive charger, just with a capacitor to set the resonant frequency and range with peak efficiency) Meaning, the charger is running electricity (AC) through its coil, which creates a changing magnetic field, which induces an electric current (AC) in the coil in the device you're charging (it's converted to DC before it charges your battery.)
Essentially, it goes (Wall AC) -> DC (wall-wart/car) -> AC -> coil -> changing magnetic field -> coil -> AC -> DC
So, placing a pair of permanent magnets in the middle of this, right where the changing magnetic field needs to be, only serves to block the ability for the charger to change the magnetic field, which it tries to compensate for by putting more power through its coil. Let's just say that in a fight between the coil and a permanent magnet strong enough to hold up your phone, the coil loses, as it is no where strong enough to change the magnetic field of the magnet. While the charging coil's magnetic field and that of the magnets may, in places, be shaped in such a way to allow some of the chargers coil's magnetic field to reach the device coil if precisely positioned, most wont, and the permanent magnets will just further resist any changing magnetic fields in the device coil.
It could possibly be done with very careful and precise positioning of magnets, like this one from Amazon.com, for instance, although based on reviews (and tysj's reply) I'm unsure of how well it will work, and it certainly depends a LOT on where you put the magnets on your phone/in the case. That's a link with no referral code, and no tracking info, I always strip them when sharing, as a courtesy just the link. Since the location of the coil in the phone isn't standardized, it's hard to say. I'm not an electrical engineer (so there are most likely errors in here), so I honestly couldn't tell you. But as someone who has a (very) basic understanding of electromagnetism, including induction, this is really not a good idea.
In the past, I had a magnet in my phone's case for just that reason, and trying to use the wireless charger just created heat, and didn't really charge the device. And that was without a magnet on the charger, too.
If you want to read up on how inductive charging (including Qi) works, the Wikipedia article is pretty good. Wikipedia: Inductive Charging
I know you said that you but, given the above, I strongly suggest a Qi mount with an automatic grip for essentially the same functionality, but in a way that actually works. Look around for something quick. I'm unsure if I would recommend the Scosche magnetic one above, just due to how you would need to get the magnet placement nearly perfect. It might be worth a try, if it doesn't work you can always return it.
Something like this one on Amazon.com (there are many different designs like it, this is just an example.) It uses an IR sensor to detect when your phone approaches, then opens, and closes once its on the stand, then it releases by touching a button. It's not quite as easy as a magnetic mount, but at least it'll wirelessly charge.
Either that, or use a magnetic mount and a charging cable.
If you do end up buying a Scosche one, do let us know how it works out.
There's also one that requires a certain case to use, so I imagine there might be more of those. IMHO those are more likely to consistently work, as the magnets are pre-placed in the exact position needed and in a way that wont get in the way of the coils.
Good luck!
Click to expand...
Click to collapse
Very good explanation and as an electrical engineer you were right on the spot. Even if there are engineered magnets to have their magnetic field so that I would not interfere with the charging field(almost impossible for generic device since the filed is mostly unpredictable as it's based on quality of charging current, quality of the charging pad and a lot other things) I would not let magnets strong enough to hold the phone near it as it is not engineered to hold to a strong magnetic field near for a long periods of time. For instance it could (not saying that it would ) interfere with the lte signal causing the modem basically to boost the signal to the max - leading to more energy, more heat and more wear and tear. Honestly there so much things that could go wrong just because of that magnet that I would just not risk it. Usually the hardware is shielded enough but there's the not direct influence on the hardware through the signal interference (the same way with the charging coil and the massive heat). Actually that's a good way to burn your charging pad especially if it doesn't have any limiters build in.