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Hi!
First, I'm sorry for English, I'm not professional.
A few days ago I made a working wireless charger for Motorola Droid 4.
What are the benefits?
People says, the original inductive charging cover is not compatible with most of cases.
Who live away from USA, can't use a wireless charger, becouse it is only available (officially) in the US. It is very hard to find on eBay or any other site. Almost impossible.
Very cheap. The original charging cover at US, Verzion is $29.99. (+ shipping, and need a person who ship it to me) It is only a cover, and we still need a charger as well.
So, I found a charging pad with and without receivers. There was a small problem. The receivers are only for Samsung Galaxy S3, S4 and Note. Their connectors aren't compatible with Droid 4, but the charging voltage is OK.
We need to take it to compatible with Droid 4. I looking for a long time, which one can I choose. Fortunately I made the right decision.
I bought that: Qi Inductive Wireless Charging Upgrade Kit for Samsung Galaxy S3
Link here
That is only for $30.10 with EU plug. The package include charging pad, usb cable, 1500mAh charger and S3 compatible receiver, and worldwide free shipping.
The size of receiver unit is compatible with free space of phone. We need some cutting but it isn't horrible.
First, I recommend you try, how fits the module in your phone.
Then mark with a felt.
The electrical connector pins are big, (and incompatible) we need to remove it carefully. I used a rework station with hot air (360°C) but you can use a medium sized soldering iron. I think, about 50-60W of power is enough. It took for about 30 secs per pin.
It is important, you need to place the receiver in such a manner, if you remove the back cover, the S3 and some other text need to be visible! Otherwise it will not work!
You see backside of the phone, and the camera is on top. Removed cover. In the right side, you can see four copper pins. The top row is irrelevant. We need tha bottom row. In the bottom row, on the left tere is the +5 V pin. On the right, there is a Ground pin.
We need to make contact between +5V pin of the phone and the +5V charging pin of the receiver unit.
Place the receiver unit to the phone, and see what size of copper wire you need. The lower pin of receiver unit is the +5V. We need to connect it.
I used a wire,1 mm in diameter. It is lacquered, I cycled down it from an electrical part (coil).
I think, that half millimeter in diameter is enough, but a found that, and it is recommended due to the relative high current (about 1A).
When you use thinner wire, you can easier take the cover to the phone.
So you need to solder wire to receiver's +5V pin. Please use the minimum quantity of soldering wire, becouse if you make a big knot there, you will have not enough place to take cover back.
When it is done, you can see how can you bend (or cut) the wire for best connectivity with phone's 5V pin.
Now you need to solder a wire to ground, like the previovus one, but not sure, that the two wore have enough space, and we can make easily short corcuit.
For this reason, we will use the iron cover of the SD card slot. This is a very good ground point.
So, one cable will go down, other is go up. They can fit and the soldering is more easy.
PLEASE BE CAREFUL! I recommend, before you make any electrical or hot operating you need to put an aluminium foil or an iron plate to top of the battery. I think to taking out battery and then in, is not easily possible, becouse after soldering there are the receiver. The battery can damage and explosive! The plastic parts of pohone can tolerate the heat for sort time! If you can not solder succesfuly, you need to wait while the parts cooling down! I recommend, use flux and/or high quality of soldering tin. Take out the SD Card! Please don't make short circuit!
It is not too difficult, but you need to be careful and attentive.
When the soldering done, you can try the charger.
Before you can take cover to phone, you need to cut the lower center of receiver. (you can see on the cover, exactly where. There are a claw and on the phone there ara a hole) Important! We need all of holes on phone, so the wires must not hang in to holes.
I cut the piece of receiver unit from lower left side, at the speaker.
Thats all. We are done. I think it longer to read than make :cyclops:
I made some pictures, I will mark these and upload in short time.
I'm going to measure the charging time with:
1,5A USB charger (direct cable)
1,5A USB charger with wireless charging pad
1,5A USB charger with wireless charging pad (phone in a 1 mm thickness of Trident case)
0,5A standard laptop USB (direct cable)
0,5A standard laptop USB with wireless charging pad
0,5A standard laptop USB with wireless charging pad (phone in a 1 mm thickness of Trident case)
I use that from 3 days ago. It works correctly. By the factory, the charging current is 1000mA with the 1,5A charger. About 66% of efficiency.
The USB charger's stand by consumption is 0,4W.
When the charging pad is connected and it is in stand by mode, the consumption is 0,98W
I'm going to bring images, and refresh the post, but here (Hungary, GMT +1) the time is am 2:31.
Good luck guys!
---------------------------------
Uploaded images,
here are the original, better quality images. (11.5MB zip)
That great way to charge the phone. i know that my usb plugin is getting a little wore out.......glad to know that there another way to charge up the phone in case of emergency. Congrats.
Hi,
thanks, it works for me
My IQ receiver was a bit higher, or the battery, so I had troubles to fit it in. My solution was to cut every superfluous piece and pull the uper layer of slide away. Additionally, I put it a bit nearer to the camera, The last thing was to horizontally cut the gold contacts and solder the wire directly on them.
During charging, the usb charger+pad+droid 4 use 7W, without the droid 4 the pad+charger draw 0,4W, both measured at the primary side ot the charger.
Best regards,
mifritscher
Thanks for the info, looks promising I love your using Micro SD casing as GND
BTW the pad + receiver can be found at eBay for as low as US $12 Gonna try out for myself soon.
Did you get to measure the charge times?
LuH said:
Thanks for the info, looks promising I love your using Micro SD casing as GND
BTW the pad + receiver can be found at eBay for as low as US $12 Gonna try out for myself soon.
Did you get to measure the charge times?
Click to expand...
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Charging times are about equivalent
Different approach, same result
Hi, thanx 4 the great idea.
I took a different approach to install the charging pad. I felt not comfortable to solder directly to the phone, so I used copper-tape, capton-tape and some short wires I took from old headphones to mod the pad directly into the back cover of my phone. it got a little bit bumpier (half a mm), but it charges perfectly.
I applied some solder to the ends which connect to the pins, so the copper wont oxidize and the connection has more pressure.
The pictures in better quality:
View attachment goodquality.zip
zuloo.de said:
Hi, thanx 4 the great idea.
I took a different approach to install the charging pad. I felt not comfortable to solder directly to the phone, so I used copper-tape, capton-tape and some short wires I took from old headphones to mod the pad directly into the back cover of my phone. it got a little bit bumpier (half a mm), but it charges perfectly.
I applied some solder to the ends which connect to the pins, so the copper wont oxidize and the connection has more pressure.
View attachment 2842634
View attachment 2842635
View attachment 2842636
The pictures in better quality:
View attachment 2842637
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That's a nice solution, and pretty much how the "real thing" was probably set up. I noticed that the back has an internal indentation where the pins are to accommodate the connector, and I had experimented with how I might fit a charging pad in there (actually, it was the connectors that I saw as the biggest challenge), but didn't manage to get anything that I thought was robust enough (I was using cut down parts of a SIM card for the pins to make contact with - you look to have done a better job with the copper tape.
I'm really surprised that we can't buy a new back with all of this gubbins already installed - perhaps you should manufacture a few?
mugen 3800mAh inductive charging cover required!!!
i'm tempted to try this myself. the droid4 keeps getting better.
i just experimented with cardboard, seems to have plenty of room between the cover and the battery. i definitely need inductive charging.
Update 2016
@zuloo.de
Hi! I copied your method for wireless charging but I was too lazy for soldering. That is why I used only copper tape. I ordered under 5$ charging pad and receiver for Galaxy S3 (cheap from China) and it is working good. My receiver says that it can output only 0.8A so I guess it is little bit slow. Can you tell your feelings about the heat? I think that my Droid 4 is pretty hot but I never used wireless charging on other phones so I don't know if it is normal. But thanks anyway posting your method :good:
Here is pictures. I tried to take picture about the bump. It is not bad but you can feel it.
Hello guys,
Few weeks ago i read about connecting standard wireless qi usb adapter to phone itself. I mean, connect 2 stripes of cables to 5v and ground on motherboard, so usb would be still avaiable. Do you know where on motherboard those pins are ?
cortex69 said:
Hello guys,
Few weeks ago i read about connecting standard wireless qi usb adapter to phone itself. I mean, connect 2 stripes of cables to 5v and ground on motherboard, so usb would be still avaiable. Do you know where on motherboard those pins are ?
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Click to collapse
Interesting, I'm trying to find out too. I did a mod that way with my NOTE1. Mostly likely near the USB port, but I afraid it'll affect the NFC , because NFC is on the Cover. And the coil 's pcb must be extremely thin.
I would gladly get rid off nfc anyway, as I don't use it. Voltometer is on its way to me, so any time soon I'll try to update the thread
news pliz??
thanks..
Can wireless charging be used when case is still on the phone?
sshark said:
Can wireless charging be used when case is still on the phone?
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Click to collapse
current Qi is good for 7mm i believe...which is plenty of space for most cases. it wont pass through metal though, and I'm sure some materials hinder that more than others. I used a couple different cases on my nexus 5 and was able to charge with all of them.
The Qi chargers are 12V I believe. I modified a car charger to fit the adapter for the Qi wire. I had to solder it to the 12V wires in the car plug. The 5V would not charge it.
You should be able to find 12V power coming out of the power supply.
Do you guys think they'll make a Qi charging adapter? The contacts would connect to the pins on the underside of the witch and the charging coils could just be covered by a black sticker. It could be like the S4 inserts for Qi charging. Wouldn't add bulk either. What do you guys think?
Daistaar said:
Do you guys think they'll make a Qi charging adapter? The contacts would connect to the pins on the underside of the witch and the charging coils could just be covered by a black sticker. It could be like the S4 inserts for Qi charging. Wouldn't add bulk either. What do you guys think?
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I'm surprised a Chinese company hasn't done this yet. Qi receivers are easily thin enough and making a charging dock like a normal watch base with a Qi coil on top would be simple enough I think. There must be a reason this hasn't happened. I'd buy it for sure. I can't stand the stock charging cradle and I'm not spending $35 for a spare one either. That's highway robbery. I'd like to see this happen.
The hardware needs to support it, but I am willing to modify hardware given to tools and instructions.
I'd buy one for sure. I'm an avid QI user with a charger bedside, couchside, in home office, work office, and the QI car charger for my Note 3.
Please make this!
I am considering buying an Xperia X because of the Wet finger tracking. My current Samsung doesn't support that, and since I do a bit of lobster and crab fishing, and I use an app (Fishing Points) to note what I get and where I put the pots, I am rather annoied with the Samsung since any drop of water on it will mess up my usage. And trying to dry out a phone in a small boat is kind of annoying. But then I see that the X doesn't support Qi wireless charging, and I have that in my home office, my car, on my motorcycle and next to my bed. Going back to where I have to actually plug in a cable seems so incredibly stone age. So are there any solutions for Qi compatible wireless charging that works on this, and that doesn't compromise waterproofing?
Mastiff said:
I am considering buying an Xperia X because of the Wet finger tracking. My current Samsung doesn't support that, and since I do a bit of lobster and crab fishing, and I use an app (Fishing Points) to note what I get and where I put the pots, I am rather annoied with the Samsung since any drop of water on it will mess up my usage. And trying to dry out a phone in a small boat is kind of annoying. But then I see that the X doesn't support Qi wireless charging, and I have that in my home office, my car, on my motorcycle and next to my bed. Going back to where I have to actually plug in a cable seems so incredibly stone age. So are there any solutions for Qi compatible wireless charging that works on this, and that doesn't compromise waterproofing?
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Yes, add a USB receiver.
Thanks, I see that you have that phone! You mean with the flat cable going into the battery bay? I did look into that, but found that it will compromise the waterproof seal. Or is there a way to do it that doesn't?
Mastiff said:
Thanks, I see that you have that phone! You mean with the flat cable going into the battery bay? I did look into that, but found that it will compromise the waterproof seal. Or is there a way to do it that doesn't?
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It's a receiver that connects through the USB port of the phone, it do e's not affect any waterproof seal, although you probably need to dry the usb port before charging, this is the same with all phone if it just came out of water.
Thanks! But do you mean that I have to plug that in every time I need to charge the phone and then put it in the Qi charger, or that it's stuck to the outside of the phone? In the first case it's really just another way of plugging in a regular charger...
Mastiff said:
Thanks! But do you mean that I have to plug that in every time I need to charge the phone and then put it in the Qi charger, or that it's stuck to the outside of the phone? In the first case it's really just another way of plugging in a regular charger...
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Go to ebay and search for qi receiver, there are many available, although depending which one you get will vary in quality.
Yeah, I've seen those. I'm afraid they will be ripped off in my pocket, I think. So maybe the best bet is two phones and a twin SIM, so I have one for regular use and one for fishing. Or wait until spring and see if Sony gets their act together and actually deliver an expensive phone with the most common wireless charging option.
Just use a case with the receiver, sony knows about qi, they have a offcial qi case for the Z5, but decided not to use qi, and opt for fast charging instead.
Good point, a thin case with the receiver inside would probably be a good solution! Thanks! And Sony didn't think that one through. It makes it less likely that Samsung people, who often have a bunch of QI stuff from their phones, will convert. Fast charging is OK, but I prefer to put the phone into the car holder or on the bedside table and start charging without having to plug anything.
This one could be the right type:
http://d3rmje198d1rhf.cloudfront.net/graphics/450pixelp/58836.jpg
Mastiff said:
This one could be the right type:
http://d3rmje198d1rhf.cloudfront.net/graphics/450pixelp/58836.jpg
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nillkin has the best receiver so far if you are in for a USB receiver, unlike the one's sold on ebay, they just use a thin sticker with the circuit in between, the nillkin uses thin plasic, and is very stable, I have the nillkin one for my XP and V20. USB is availabl;e in two version, A and B.
The offcial sony one is pretty thick, not worth buying, but that is for the Z5 only.
Thanks! I'll get that when I change phone, then. But the picture is of a case I can use on the phone, not a receiver.
In case anybody else wants to try this, it works. But not with the pictured case, that creates pressure on the back of the phone which gives color blotches on the screen. So I found my solution in a so called "Slim Rubber Gel Case Cover" and the Nillkin receiver. Problem solved, and it works quite nicely. I rarely need to to connect my phone with the USB, but it's quite easy to pop off the case and remove the receiver.
First of all, I’d like to put out there that this is a review for the item I purchased and might not be the same brand as the one you might end up with. I’m aware that there are several different brands, but I just got this one as it seemed like a good price, but more on that later.
What exactly is it?
It’s a charge/data cable with a female USB at one end and at the other a magnetic Type-C at the other (other adapters are available).
Who is it for?
Anyone but more importantly it’s for someone that charges their phone quite often. All you do is offer the cable end to the adapter and it magnetically clicks into place.
Why did I buy this?
I was, first of all, looking for more Type-C USB charging cables to put around the house so I can just stick my phone on charge as and when needed. I thought about buying a pack of standard USB cables however I remembered that a while ago I purchased something similar for another Mini-USB device I had and looked about for one that would work with my Note 8. I found one and ordered it off eBay.
Advantages
Wear and tear on the charger port. This is the bit of the phone that is more likely to fail (unless you count the screen being smashed) as you’re constantly plugging and unplugging the charger. If you charge your phone twice a day that’s 730 times a year you're pushing and pulling that plug into the port. With this adapter, you put that little bit in the charger port once and that’s it. Just offer up the cable and it magnetically clicks onto the adapter. Also if you were to accidentally catch the cable and wrench it then the cable will come away from the adapter and your expensive phone won’t get dragged onto the floor. Furthermore, the charging port will not get damaged, because if it does, it’s not just a matter of unscrewing a few screws and replacing the charging module.
Disadvantages
First main one is that you either need to carry the adapter cable around with you or you will need to purchase extras. This was my issue. I need one cable at home, one in my car and one in my truck. Plus another one to keep on you should you visit a friends house. The cables aren’t cheap either if you wanted to buy them separately. And there lies another issue. A lot of sellers have run out of stock of cables on their own, so you need to buy the whole thing, and at about £5 or so a pop for a cheap-ish one, then you’re looking at about £20 for a set. I’d suggest you purchase all the cables with a variety of adapters from the same seller that way you know they’re all going to fit.
Speaking of the tiny little adapters, they are really small, and if you drop one you’ll have a hard time finding it, and like the cables, they're sold separately but are sometimes out of stock. I dropped one in the kitchen and found it stuck to the bottom of the washing machine due to the magnet attracted to the metal.
Should I buy one?
Yes, in fact, I think you should just go and buy a few. Reason being, a set of these will be cheaper to buy than replacing the charging module on the Note 8, especially since you need to separate the screen from the body.
Any brands you’d recommend?
There’s a brand called Wsken that makes a variety of the cable and has been reviewed by a chap on YouTube called Techmoan. However several sellers sell their own variety at a lesser price, so it’s up to you.
Link to UK eBay listing I used: http://r.ebay.com/LJ6uBF
Do you have a picture of it installed in the phone?
Also does it still "fast charge"? What is the data transfer rate.?
Also why not just use the wireless charging that is built into the device.
I just put 3 wireless fast chargers around the house
Sent from my SM-N950U using Tapatalk
ShrekOpher said:
Do you have a picture of it installed in the phone?
Also does it still "fast charge"? What is the data transfer rate.?
Also why not just use the wireless charging that is built into the device.
Click to expand...
Click to collapse
curious also if these will fast charge.
Yes they fats charge. I don't have one in my note 8 as I use a wireless pad but I have them on my ipad and s2 tablet. They are fantastic, my wife has one I her galaxy S7 and her ipad. The S7 fast chargers via the cable.
We have one cable each and just flick between devices as we use them.
I've just bought another 3, 1 for the car and 1 each for the kids.
Wsken brand are the ones I use. At $18AUD each they are a bargain. No more torn cables, or dodgy ports on my devices.
No I don't work for Wsken, I tried a few other cheap ebay ones and they were rubbish
Sent from my SM-N950F using Tapatalk
What USB spec?
Are they 3.1 (USB-PD) gen 2 superspeed capability?
I had a few of those on my Note 5 and end up with a burned Fast Charging adapter, and a defective micro USB port on my phone.
It charges extremely slowly and can't work for data transfer.
If you are not careful when plugin them, the pins make contact on the wrong place generating like a short.
PS. The cable is all white, but I end up wrapping the tip with electrical tape, because it has a green led similar to the MacBook Pro chargers, and I hate lights at night
This is one I have
https://www.dropbox.com/s/vxocgw1sulnzzw1/20171007_104607.jpg?dl=0
It's non reversible so only goes on one way. There is a north, south magnet configuration in the head and cable so if you try to put it on the wrong way they push away from each other. Just like two north pole magnets.
This is the micro usb version and it offers data transfer.
The usb c version is a different design and is actually circular.
Micro usb version - http://www.ebay.com.au/itm/172603008733
Usb C version - Look at this on eBay http://www.ebay.com.au/itm/272561465856
Sent from my SM-N950F using Tapatalk
I'm using asap's X-Connect setup. Here's their website link.
I originally got these as part of an IndieGoGo Campaign.
I use these quick connects with my Mophie Charge Force Desk Mount Stand and a Vent Mount since Mophie doesn't have a case yet for the Note 8. I'm using a regular case and stuck a Spigen Metal Plate to the back of the case. The phone/case now attach to the Mophie Charge Force Mounts and I can easily use the quick connect cables. This is especially convenient in the car!
Update: I do not recommend these magnetic quick connects IF you are working in an automotive shop or a machine shop or anywhere that you might come in contact with tiny metal particles. I had one of these on my husband's phone which he usually keeps in his pocket. He also puts lots of "other" things in his pockets like screws, washers, bolts, metal pieces, etc. Well, his magnetic end in the phone attracted all sorts of metal debris! Couldn't even magnetically attach the cable to it. I finally had to have him stop using this type of setup.
Sorry for the delayed replies. I've been away from all things electronic for a few days. I'll post some photos up of my setup when I get sorted again
Would be Great if it came in 3ft & 2ft length also