Develop Bugs

Qi Charging circuit? [Q]

I was looking at some threads and noticing that there are a couple of makers in China that sell Qi receiver "inserts" - it looks to me like those are the exact same as the SG3 ones, only with a bit more "padding" to get the spacing right - I was wondering if anyone sells just the circuit board (that is thin enough) such that I could add my own coils to it (and ideally use more of the space available), to increase the charging rate and the "sweet spot" on charging pads - does anyone know who sells such a thing and if it would work in theory? (2 coils), or would their resonance frequency be off, and therefore not much improvement? or would 1 larger coil also fail due to the current limitations of the circuitry inside the receiver?
P.S.: I want to use the Qi standard rather than the touchstone hack

Make your own qi charger the size of a nickel? possible?

I know nothing about qi or wireless charging, so don't laugh if im asking too much but I just recently bought a Kenu Airframe for my car, and I love it! Very minimal. its nice. I was wondering if its possible to make your own qi charger, and whats the smallest it would have to be for qi devices (such as nexus 5) to successfully charge to it? I am planning a project soon to install a charger, and Bluetooth receiver inside my dash in my car, and so I wont mind hiding the internals for a qi charger on the inside of the car if its possible. My idea was something almost as small as those nfc stickers, but for qi charging, where the actual charging part could be the slim "nfc sticker" size, with the actual qi parts hiding under dash. is this possible?

unvaluablespace said:
I know nothing about qi or wireless charging, so don't laugh if im asking too much but I just recently bought a Kenu Airframe for my car, and I love it! Very minimal. its nice. I was wondering if its possible to make your own qi charger, and whats the smallest it would have to be for qi devices (such as nexus 5) to successfully charge to it? I am planning a project soon to install a charger, and Bluetooth receiver inside my dash in my car, and so I wont mind hiding the internals for a qi charger on the inside of the car if its possible. My idea was something almost as small as those nfc stickers, but for qi charging, where the actual charging part could be the slim "nfc sticker" size, with the actual qi parts hiding under dash. is this possible?
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http://www.ifixit.com/Teardown/Metrans+MWT01+Qi+Wireless+Charger+Teardown/13532
look at a Qi charger teardown
the circuit board probably contains voltage/current regulation stuff along with other stuff, can hide it anywhere
you'll simply need to miniaturize that coil, probably similar to how NFC tags look like... there is some current output, range and efficiency relationship on how you choose the coil size, material, length, radius etc

paperWastage said:
http://www.ifixit.com/Teardown/Metrans+MWT01+Qi+Wireless+Charger+Teardown/13532
look at a Qi charger teardown
the circuit board probably contains voltage/current regulation stuff along with other stuff, can hide it anywhere
you'll simply need to miniaturize that coil, probably similar to how NFC tags look like... there is some current output, range and efficiency relationship on how you choose the coil size, material, length, radius etc
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jesus, that's all there is to it!? this is exactly what I was hoping for! Would it be safe to assume nearly all qi chargers are built similar then? if that coil is any indication, you just might be right. I have a feeling though that the coil is that big for a reason. My guess is smaller might reduce power output, but if its the same concept, ill pick up a cheap charger on ebay to tear apart and play with, just to test it.
Here is the Kenu Airframe for anyone interested:
http://www.kenu.com/products/airframe
if you like small mounts, this sucker is really well built. price might be a bit much for some, but believe me, its worth it.
my idea is to use the small center "Kenu" plate in the middle of the mount for qi charging. One could make the coil somehow on the airframe, possibly in the size of a NFC sticker, and have it wired into a micro usb port on the back of the airframe mount. then on the qi charger size, where the coil is, wire that with a micro usb cord, and simply attach the two cables together. This would allow for any possible adjustments if you wanted to move the mount around.
EDIT: hmmm, a quick google search found this:
http://www.mouser.com/new/Wurth-Electronics/WE-WPC-Coils/
is qi charging really just a basic charger, just with a magnetic inductive coil instead of micro usb cable? is it really that simple?

The coils are specified by the Qi spec. i.e. you can't just use an arbitrary loop of wire. But, it should be relatively trivial to break open a charging pad and put its guts in a new housing.
Working from scratch, however, is complicated and fraught with peril. You'd have to get a chip (like IDTP9036) and wire it up. And no, actually "wiring" it won't work, you'd have to make a circuit board for it to live on.

sciguy125 said:
The coils are specified by the Qi spec. i.e. you can't just use an arbitrary loop of wire. But, it should be relatively trivial to break open a charging pad and put its guts in a new housing.
Working from scratch, however, is complicated and fraught with peril. You'd have to get a chip (like IDTP9036) and wire it up. And no, actually "wiring" it won't work, you'd have to make a circuit board for it to live on.
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well, what I mean is, can you essentially use a regular wire, inbetween the qi coil, and the qi charging component itself? in the link provided by paperwastage, it looks as though all the qi charger itself basically is, is the qi component hardware itself, with the qi compatible inductive coil soldered in. by that concept, I am asking if you could TECHNICALLY add a regular wire between the coil and components, to essentially extend where the actual coil itself can be placed and used?

unvaluablespace said:
well, what I mean is, can you essentially use a regular wire, inbetween the qi coil, and the qi charging component itself?
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You could likely add small extensions to the coil. Though, I don't have enough experience with them to know exactly how much. Personally, I would be wary of adding more than an inch or two to each end. However, you could always experiment and see what works...

Qi help
the distance between the coil and the output board, is going to effect how much power is lost internally.
the size of the coil, the wire size, the wrap (basically anything that affects the field strength) will effect the efficiency.
you'll note alot of the Qi pads out there use 2A draw to power them, but only transfer power at between 500-1000ma....and they only guarantee the lower limit. (i'm guessing because of production variations, like how accurately the coiling is laid down, whether the copper wire had high or low contamination the day it was drawn, etc)
this is where knowing the Qi spec, and tuning your antenna coil comes into play.
all that being said, GL !

I was doing some reading here and there, bought a few cheap qi coils and pcb boards. I was trying to request a sample of TI's new PCB board/coil that does not require magnets(so we can continue to use NFC, and possible compass issues.), but when I tried to request a sample their website would glitch out, may try it again sometime soon.

Did you get anywhere with this? I am trying to extend the distance between the PCB and coil and am unsure of what cable to use.

wireless charging solution thread

As we all know, the new Zenfone 2 is missing wireless charging capabilities, however there are multiple solutions to enable wireless charging on basically any phone.
Example is http://www.amazon.com/BEZALEL®-Wire..._1_4?s=wireless&ie=UTF8&qid=1432149451&sr=1-4
It is a cover with a Qi receiver built in, which connects to the charging port and it also provides an independent micro usb port as a part of the case.
The absence of wireless charging in Zenfone 2 is a deal breaker for me ( don't judge) and as soon as an appropriate case is available, I'll get it and the phone as well.
Please post your findings here.

Would love to use wireless charging but using a cover like the one posted is out of question.
I love the slim form and feel of this phone. so i will have to live without QI and other solutions.

This will occupy the mUSB port but would probably be the best current solution.

hkdmjack said:
This will occupy the mUSB port but would probably be the best current solution.
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That's pretty cool. I like wireless charging because I'd rather not wear out my micro usb...but that setup kinda marries you to wireless charging all the time. I'd have to rig up wireless charging in the car and at work...not just at home. You use something like that?

nathan118 said:
That's pretty cool. I like wireless charging because I'd rather not wear out my micro usb...but that setup kinda marries you to wireless charging all the time. I'd have to rig up wireless charging in the car and at work...not just at home. You use something like that?
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Not sure if I'm going to stick with the ZF2, so I haven't gone out and done all that yet but qi adapters are pretty cheap now for both home and car. How effective some of the car ones are though are another story. iOttie has two models out now that look promising for the car.
There may also be the possibility of placing those adapters into a separate case just meant for wireless charging... remove the case if you need the mUSB port.]
Or... if they do release new back covers... get one that you install the qi adapter in and then one that you won't have the qi adapter in.

WHYYYYYYYYY
Why did Asus decide not to include the qi pins in the back ((((((((((((((((((((((((((((((((((((((((((((
>_<
what to do :'(

Here's a teardown: http://www.myfixguide.com/manual/asus-zenfone-2-teardown/
You could solder the DigiYes posted earlier (http://www.amazon.com/gp/product/B00HI8JYFE) onto the usb board. Or you could probably just jam the wires into the connector for a non-permanent solution. The pictures of the DigiYes are a little conflicting, but if it does have leads for the data pins, you'd be best off omitting them (you'll be limited to 500ma qi charging).
This is of course assuming there's enough space to wedge the DigiYes between the back cover and phone.

ziddey said:
Here's a teardown: http://www.myfixguide.com/manual/asus-zenfone-2-teardown/
You could solder the DigiYes posted earlier (http://www.amazon.com/gp/product/B00HI8JYFE) onto the usb board. Or you could probably just jam the wires into the connector for a non-permanent solution. The pictures of the DigiYes are a little conflicting, but if it does have leads for the data pins, you'd be best off omitting them (you'll be limited to 500ma qi charging).
This is of course assuming there's enough space to wedge the DigiYes between the back cover and phone.
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Which goes back to my point. Why did Asus purposdely omit to include QI/wireless charging pins on the back? It would had cost them hardly anything extra at all, and users could just have changed back cover to get wireless charging...

That one http://www.amazon.com/BLUBOON-Unive...2630&sr=8-2&keywords=qi+wireless+charger+1000 is 1000mA, if it does make a difference. But a case integrated receiver would be much better solution, if ever.

olegy said:
That one http://www.amazon.com/BLUBOON-Unive...2630&sr=8-2&keywords=qi+wireless+charger+1000 is 1000mA, if it does make a difference. But a case integrated receiver would be much better solution, if ever.
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I bought that model. I have a Qi charger (used with a Nexus 5) hooked up to a 2A USB Adapter, and it barely charges the Zenfone. I do not recommend. Maybe a 2A receiver would work better.

It's ridiculous.... why did asus decide not to offer a wireless charging solution similar to the previous samsung galaxies/lg.
Have the pins for charging on the back, and let the user change the case to a qi receiver case or add a qi receiver pad inside. this is honestly the only thing that disappoints on this phone (((((((((((((

ziddey said:
Here's a teardown: http://www.myfixguide.com/manual/asus-zenfone-2-teardown/
You could solder the DigiYes posted earlier (http://www.amazon.com/gp/product/B00HI8JYFE) onto the usb board. Or you could probably just jam the wires into the connector for a non-permanent solution. The pictures of the DigiYes are a little conflicting, but if it does have leads for the data pins, you'd be best off omitting them (you'll be limited to 500ma qi charging).
This is of course assuming there's enough space to wedge the DigiYes between the back cover and phone.
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I just received mine and there is enough space in the back cover for the receiver to fit in, albeit with a small bulge. It does show my phone as charging even when just held up to my Moto 360 cradle; whether or not it's charging, however, I have no idea.

raynan said:
I just received mine and there is enough space in the back cover for the receiver to fit in, albeit with a small bulge. It does show my phone as charging even when just held up to my Moto 360 cradle; whether or not it's charging, however, I have no idea.
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Thanks for trying. Did you actually solder or just plug it in the usb port? If you plugged it in the usb port, does the cover close without damaging the cable?
I'm asking because if that works, we could potentially design a slightly thicker but hollow back case that could hold NFC and the wireless receive without unnatural bulges.

ameel said:
Thanks for trying. Did you actually solder or just plug it in the usb port? If you plugged it in the usb port, does the cover close without damaging the cable?
I'm asking because if that works, we could potentially design a slightly thicker but hollow back case that could hold NFC and the wireless receive without unnatural bulges.
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It closes fine but there is a bulge and the cover is left slightly open.
Here's my solution. Doesn't look good but functional.

don't judge
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Yeah I judge, wireless charging its just another feature. A small battery, a slow processor or low memory now that's a real deal-breaker since your phone wont last a day, apps will run like hell and you will always have to micromanage just for things to run properly.
I'm way more pissed off at this phone not having a removable battery, not just because its a real deal-breaker during travel where I will be forced to lug around one of those brickish power banks but because Li-ION batteries have the lifespan of a mosquito. I already had 2 phones like that and the result was always a massive pain in the ass to deal with.
I rather buy a case with an extra battery than this thing

Three pins USB Board?
Hi there
Maybe some one knows, what are those three pins on the USB board, that are accessible without disassembly phone?? That should be connectors to charging instead of usb socket?

I have a qi charger built into my car. I do not like aftermarket charger added to the phone. So this is a deal breaker for me and will not consider any phones without buildin qi charger.

Looking to buy this phone and own a quick charging card like this. Is it possible to slip the card under the back cover (without a case) or will it cause it to bulge in too unsightly a manner?
dud89 said:
It closes fine but there is a bulge and the cover is left slightly open.
Here's my solution. Doesn't look good but functional.
Click to expand...
Click to collapse

Slooop said:
Looking to buy this phone and own a quick charging card like this. Is it possible to slip the card under the back cover (without a case) or will it cause it to bulge in too unsightly a manner?
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It can but causes a gap near the usb port that I could not close. I would've run it inside if it didn't do that.

dud89 said:
It closes fine but there is a bulge and the cover is left slightly open.
Here's my solution. Doesn't look good but functional.
Click to expand...
Click to collapse
Great Idea.
The speed of charge is 350 MAH ?? Is to slowly (USB PC charge normally 550 MAH)

Magnetic dock + Qi wireless charging project

Hello everyone! How are y'all doing on this lovely week? I'm doing great!
I got my Zenfone 2 last week and I'm loving it, but I miss the hability to wireless charge it and especially to put it in the Air dock when I'm my car. So here I came asking for your aid!
Is there any dock like the Air dock for the Zenfone 2? I have an Air dock (1st Gen) that I bought back when I had a Gnote2 and because of the curved back and some wearing of the rubber in the dock the Zenfone 2 doesn't hold very nicely, so I'm thinking about making my own magnetic dock to put in the car.
Also, is there any way to get Qi wireless charging to work on it?
My initial idea on the magnetic dock won't even consider charging wirelessly since I plug it via a cable when on the car to listen to music/podcasts but maybe If I could get it to work, as times goes on, I would find a way to charge it wireless and get some sort of bluetooth dongle for the car.
My thoughts on a project for the dock involves using HDD magnets since they are really strong and it would make the device secure. But my concerns are if it's safe to use magnets that powerful near a phone for it's hardware and for it's battery, since s not easily replaceable.
Anyone here ever did or saw some sort of project like this? I'm possibly gutting my Air dock if the Zenfone doesn't support Qi wireless.
Any input is helpful, I'm completely open to suggestions!

There is an existing thread about QI solutions since there are no contact pins for wireless charging without some heavy modding of the device casing or usage of the USB port. As far as I'm aware, magnets have virtually no effect on the hardware except for a few sensors like the magnetometer and possibly the magnetic cover sensor.

raynan said:
There is an existing thread about QI solutions since there are no contact pins for wireless charging without some heavy modding of the device casing or usage of the USB port. As far as I'm aware, magnets have virtually no effect on the hardware except for a few sensors like the magnetometer and possibly the magnetic cover sensor.
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Thanks! I'll try to find some weaker magnets to keep it in place without such a load in my mind, thank you for your help

Sure, good luck and I'd be interested in seeing what you think up.

I'd opt to use a cradle or similar holder instead of magnets. A strong enough magnet would probably add too much bulk. When looking for qi receivers, make sure to get one that has data pins (which will most likely be shorted to allow rapid charging). This one is still a reasonable price http://www.amazon.com/gp/product/B00WKWWMAM and fits well enough in most cases. It does even fit alright inside the back cover, but you're better off putting it between the phone and case. It'd make more sense to go qi all around since it becomes a hassle to unplug it..
If anything, you could save a bit of bulk by ripping it apart and removing the magnet. It does seem to severely cripple nfc though.
As for bluetooth receivers, they have become significantly cheaper recently. You could get an old bt2.1 a2dp button-less one and hide it away somewhere. I got one for $3 shipped. There are apps that can be set to auto-play on pair. For $10-15 more, you should be able to find something with buttons (back/playpause/next) and aptx support. Usually these will have a microphone as well

Compatible Magnetic Qi Car Charger

I've been on Youtube for the last hour reviewing magnetic qi car chargers.
Obviously, they all differ considerably for each phone.
I'm looking for one that just has a flat front surface with no arms or clamps, so this means that a magnet of some kind has to go on the phone cover that I have on my P5.
There are vent and windscreen mount versions, I'm looking for one that is as unnoticeable as possible, so forget the windscreen mount type.
Has anyone got any experience with one of these. Whatever I get must not interfere when charging my P5 on the Google Pixel Stand.
Thanks

How is your phone going to stick to a magnetic mount?

With a metal plate inside the phone cover, placed carefully so it does not interfere with the wireless charging on my Pixel Stand and whatever I get for the car. I've had a normal magnetic mount in the car before using this method and it did not interfere with the wireless charging, as long as its placed properly.

The problem with the Pixel 5, and, to some extent, all phones with wireless charging, is that the location of the space for positioning the metal plate is either at the very top or the very bottom of the phone, thus making the phone either very bottom heavy or top heavy and prone to sliding and slippage.
Apple's MagSafe gets around this because their magnetic mounting system is built around the charging coil so as to not interfere with charging and provide a multipoint magnetic connection that is centered, more secure, and stays in alignment.
The only alternative that I've found that works for Android phones and works well is a system like the Mous Limitless system of cases and accessories. I've been using their case, card wallet, and charger mount for about a month now and they are great. If you want more info on them you can just read my post in the thread below this one where I detail my experience with their products. They also have their own info and explainers on their site at mous.co.

jallenhayslett said:
The problem with the Pixel 5, and, to some extent, all phones with wireless charging, is that the location of the space for positioning the metal plate is either at the very top or the very bottom of the phone, thus making the phone either very bottom heavy or top heavy and prone to sliding and slippage.
Apple's MagSafe gets around this because their magnetic mounting system is built around the charging coil so as to not interfere with charging and provide a multipoint magnetic connection that is centered, more secure, and stays in alignment.
The only alternative that I've found that works for Android phones and works well is a system like the Mous Limitless system of cases and accessories. I've been using their case, card wallet, and charger mount for about a month now and they are great. If you want more info on them you can just read my post in the thread below this one where I detail my experience with their products. They also have their own info and explainers on their site at mous.co.
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Thanks for that and the mous info, funny, I was looking at their products online just last night. I think I'll have a closer look.
Cheers

152bobby said:
Thanks for that and the mous info, funny, I was looking at their products online just last night. I think I'll have a closer look.
Cheers
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Actually, just one other question, does the Mous cases work perfectly with the Pixel stand ? If I go down the Mous route, I have to do my research thoroughly, because a case and a car qi charging pad is not cheap !!

I would imagine there would be no magnetic attachment compatibility if the phone attaches to the Pixel Stand magnetically, but, as far as wireless charging, to the best of my knowledge it does not interfere with any other wireless charging devices.
I have two Anker wireless chargers, one pad and one stand, and I haven't had any trouble with either one.

Is there a preferred cigar/cigarette adapter to use with the Mous wireless chargers . If I'm going to cough up this amount of money to accompany a already expensive phone purchase, why skimp on the adapter

They supply a USB-C lighter port adapter as well as a braided USB-C cable with the charger mount, but I also have an Anker port adapter with USB-C and USB-A and it works as well.
Also, just for good measure, I thought I'd also attach a front and rear photo from my mount, to give you an idea of what it would look like.
Just remember, as per my post in the other thread, if you don't want to use the supplied vent clip, which I advise against as it's not very secure, you'll need a mount from another device with a 17mm ball joint. I previously had an iOttie One Touch CD slot mount and it worked perfectly.

Excellent information, much appreciated, thanks. I'll update you with my progress.

152bobby said:
Excellent information, much appreciated, thanks. I'll update you with my progress.
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Thanks. I have placed my order for the P5 case and the vent mount adapter (my intentions is to try the vent mount, if no good, I'm sure I can detach the mount part at the rear and attached it to my car dash with double sided tape). I did manage to contact Mous and they kindly gave me a 20% code for my first order

152bobby said:
Thanks. I have placed my order for the P5 case and the vent mount adapter (my intentions is to try the vent mount, if no good, I'm sure I can detach the mount part at the rear and attached it to my car dash with double sided tape). I did manage to contact Mous and they kindly gave me a 20% code for my first order
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If the tape method doesn't work, some of these options might. Just make sure the ball is 17mm. They all seem to be around $10, so not terrible, and cheaper than buying an entirely separate mounting system just for the ball joint.

Thanks, I've been looking at these, should I need one. However, I don't see these with the part that would go on the rear of the Mous charging pad for the ball part to click in to ?

152bobby said:
Thanks, I've been looking at these, should I need one. However, I don't see these with the part that would go on the rear of the Mous charging pad for the ball part to click in to ?
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The ball cup and threaded nut are on the back of the charging pad.

Of course it is, I've just looked at the Mous air vent mount....I knew I shouldn't have had another beer !
Thanks, I'll see how it goes when it arrives.

152bobby said:
Of course it is, I've just looked at the Mous air vent mount....I knew I shouldn't have had another beer !
Thanks, I'll see how it goes when it arrives.
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My Mous items arrived today. The case fits nicely, the car air vent actually works well in my car, but I can see it pulling off the vent eventually when removing the phone, but it's not where I want my phone. So I have ordered a 17mm ball joint from Amazon, so I can have it exactly where I want my phone to sit in the car. I've tested the wireless charging and magnetic strength and all is good. I have also tested the wireless charging on my two Pixel stands and my Anker stand also and they all charge fine through the case. So all good for a while . Looking at the case in more detail and feeling it, I have high confidence in this case protecting my phone should I drop it. Thanks for the help I've had in making a decision for this purchase.

**UPDATE**
So I have had both the car wireless charger and the Mous case for my P5 for nearly a week now and I have come across a charging issue. I emailed Mous customer support about it and got a reply today, which to be honest, does not really help me and I think they almost admit that the Mous products are not all they are cracked up to be. They refer to iphone (which certainly does not help me).They have offered a full refund, but I am going to do some more testing myself, as I have a 2 hour drive to do tomorrow and I "think" the issue I am having is to do with me using Android Auto (Google Maps) wirelessly in the car whilst charging, I'm not exactly sure yet, but I am not replying to them until I have done this final test. I am going to use wireless Google Maps for half of my journey with the P5 on the charger and the other half with the phone just sitting on the charger charging with no Google Maps on.I have copied and pasted their reply below, my original message to them, is at the end of their reply, so read this first before reading their reply and possibly give me your thoughts ?
Hi Bobby,
Thanks for reaching out to us and I’m so sorry to hear that you’ve had some issues with your Wireless Charger.
I've had a word with our tech wizards, and they have suggested that you please see possible troubleshooting advice for your phone not charging correctly below:
1. For Apple users: Apple is frequently updating their firmware, which affects the wireless charging system. Therefore some of Apple's own updates could make wireless charging worse or better while they are tuning the software.
2. Wireless charging works by transmitting power from one coil of wire to another, however, the alignment of these coils is very important to transmit the power efficiently. Please make sure that your phone (even without a case) is positioned correctly and centrally, as this will improve charging time and efficiency.
3. Please ensure the voltage is set to the highest possible output to ensure your charger has the best chance of functioning through our case. Some wireless chargers will not have enough power to transmit power to the phone with a case on so make sure you are using a wireless charger that has power from the mains or uses a high-quality USB adaptor supplying more than 1.2 Amps.
4. We will soon be launching Mous wireless charging accessories which are designed to work seamlessly with our cases and will perfectly auto-align the receiver and transmitter coils in the phone and charger.
However, I can appreciate that this is not relevant for everyone, so you are welcome to return your Car Mount if you still wish.
We look forward to hearing from you.
Best regards,
Richard
Customer Experience Advisor
Mous Products Ltd.
On Mon, 24 May at 1:28 AM , Bobby McLeish
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wrote:
Hello, I have only had my Mous items for a few days. I think there is a issue with my charging pad. It seems to only charge my phone for about 5% and then stops, if I leave the phone attached to the charging pad, it starts to charge again after about 10 minutes and then repeats this. The charging pad itself is quite hot, I think the charging pad is turning itself off when it gets too hot, so I suspect the charging pad is faulty ? I am using the official Mous Pixel 5 case and also the cable and car charger plug which came with the charger. I have ensured that there is no hot air coming from the cars air vent (it is completely off). I think this needs to be replaced, can you get back to me on what to do about this ? Thanks, Bobby.
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152bobby said:
**UPDATE**
So I have had both the car wireless charger and the Mous case for my P5 for nearly a week now and I have come across a charging issue. I emailed Mous customer support about it and got a reply today, which to be honest, does not really help me and I think they almost admit that the Mous products are not all they are cracked up to be. They refer to iphone (which certainly does not help me).They have offered a full refund, but I am going to do some more testing myself, as I have a 2 hour drive to do tomorrow and I "think" the issue I am having is to do with me using Android Auto (Google Maps) wirelessly in the car whilst charging, I'm not exactly sure yet, but I am not replying to them until I have done this final test. I am going to use wireless Google Maps for half of my journey with the P5 on the charger and the other half with the phone just sitting on the charger charging with no Google Maps on.I have copied and pasted their reply below, my original message to them, is at the end of their reply, so read this first before reading their reply and possibly give me your thoughts ?
Hi Bobby,
Thanks for reaching out to us and I’m so sorry to hear that you’ve had some issues with your Wireless Charger.
I've had a word with our tech wizards, and they have suggested that you please see possible troubleshooting advice for your phone not charging correctly below:
1. For Apple users: Apple is frequently updating their firmware, which affects the wireless charging system. Therefore some of Apple's own updates could make wireless charging worse or better while they are tuning the software.
2. Wireless charging works by transmitting power from one coil of wire to another, however, the alignment of these coils is very important to transmit the power efficiently. Please make sure that your phone (even without a case) is positioned correctly and centrally, as this will improve charging time and efficiency.
3. Please ensure the voltage is set to the highest possible output to ensure your charger has the best chance of functioning through our case. Some wireless chargers will not have enough power to transmit power to the phone with a case on so make sure you are using a wireless charger that has power from the mains or uses a high-quality USB adaptor supplying more than 1.2 Amps.
4. We will soon be launching Mous wireless charging accessories which are designed to work seamlessly with our cases and will perfectly auto-align the receiver and transmitter coils in the phone and charger.
However, I can appreciate that this is not relevant for everyone, so you are welcome to return your Car Mount if you still wish.
We look forward to hearing from you.
Best regards,
Richard
Customer Experience Advisor
Mous Products Ltd.
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Is it a slow charging issue? One thing I've noticed with wireless car chargers is that, even when they are getting full power, they can't keep up with the power drain from using maps and other apps. I can't say if this applies to iPhone as well, since my last iPhone was the 4s, and I only have experience with the wireless on the Pixel 5, but whenever I run Google Maps and listen to Spotify at the same time, the power draw and charging hit a sort of break-even.
The Mous charger is a little bit better since it uses USB-C, but my previous charger that used Micro-USB couldn't keep up. I also think heat plays a role in it as well. Hot, sunny days on the dashboard seem to keep the phone hot. Add that to the heat produced from the wireless charging and you've got a recipe for faster battery drain. That's just speculation, though, so don't quote me on that.
All that said, I have noticed it stopped charging a couple times recently on particularly hot days, but once I got moving and the AC had time to cool the inside temperature down it started charging again. I also have both of the vents on the left and right side of the charger aimed directly at the mount to help get more airflow around it.
I haven't seen it happen enough to show cause for concern, but if yours is cutting out that often then it may actually be faulty. If you haven't already, try a different USB-C car adapter. If it does the same thing, take it inside your home and plug it into a USB-C wall charger. My guess is, if it's not a faulty pad, that it's either a car adapter or heat issue, and trying those two things will eliminate one or the other, or maybe both. Finally, just for good measure, if it's still an issue, try a different USB-C cable. Sometimes it's just that simple.
Just a sidebar, if you use Discord on your phone, consider closing it when not in use. I've noticed since their latest update that it burns through my battery to the tune of about 20%/hr when I'm on 5g.

I've been researching this one. It has a heafty price but, reviews have been majorally positive.

I have the Mous Limitless 3.0 case and the wireless charging vent mount with my pixel 5. Had them for about 4 months. The case and mount work very good. Magnets are strong. I've never had the phone fall while driving and it charges at 15w reliably for me. Both vertically and horizontally. I think it's important that you use the included cable and cigarette lighter adapter.
I have an Anker Qi desktop charger and it charges at 15w through the Mous case. Not magnetic, though.
Downside for the Mous is the whopping price tag. I also think the case is a bit bulky but I'm used to it now.