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Hi
I am looking for a way to charge HD2 without need to allways plug usb cable to mobile.
Inductive charging would be great, but we are not that far, but HD2 has power connector under his back cover, it is there for charging with car kit. Possible solution would be to use back cover with charging connectors and appropriate charging base. So I would just have to lay my phone on charging base without any connectors.
Is something like that on market?
Thanks
Martin
nope..........
There is in fact such a thing, but i do not know if it would work with the HD2.
I have seen something of that nature at cebit or something, really cant remember which computer convention it was, but it has been reviewed in various mag's
hxxp://www.berryreview.com/2009/10/30/gadget-of-the-week-powermat-wireless-charging-pad/
(change hxxp to http)
I have seen an inductive charging pad system at Carpone Warehouse in UK.
Technically, i suppose it would be reasonably simple for a company like Powermat, or other inductive charging manufacturers to make a replacement battery cover for the HD2 that ties into the contacts on the back of the phone, which were originally going to be used with the car holder, before it got redesigned, and allow recharging of the battery.
Well... Inductive charging... Would be nice.. But:
There must be a coil build in in the back cover and some regulator hardware. That is making the back cover thicker. This might be no problem if they do it right.
An other posible problem is the induction itsef. It is close to the electronics of your phone. What will happen with the signals and even can it damige the electronics?
I would like to have it, but only when it is tested and no risk of dameging the phone and disturbing the signals.
Well Powermat make back covers for iPhone, Blackberry, Nintendo DS so it can't be doing that much damage
has anyone seen a power mat backplate yet ?
I believe from the CET and CeBIT 2009 and 2010 technology was shown for the integration of current wireless charging in mobile phones. I believe HTC has added a second charging connection just below the battery, behind the battery cover. Perhaps a flat coid can be placed at the back of the current cover. The coil can be connected to the secondary charging connection. It was previously inteded by HTC to be used with a special battery cover that connected to the first concept model of the HTC HD2 carkit.
I believe Duracell or another battery company demoed a wirless charging system that could be integrated with current mobile phones. Maybe it is a start to look there?
Even if it worked for hd2 it would charge the battery at very very slow rates (typically @ less than 80ma)
I never have my phone charging through usb...only into my pc when im copying files or flashing Roms
I just got a spare Battery & Desktop Charger, as i work 12hour shifts (listening to music) it comes handy having a spare battery
As long as inductive charging is in it´s childhood-state it´s another waste of valuable energy.
Not for the single phone or person but taken together the ever increasing billions of users it´s a massive waste of resources.
Did You know that the worldwide use of internet (PCs, Notebooks, Netbooks, Phones, Servers, transmission lines, amp-nodes etc.) consume already more energy than worldwide car-traffic ? Should make You think ...............
Hello,
Two quick notes: The Palm Pre battery cover coil has its terminals on the correct side and very close to the charging terminals in the chassis of the HD2, given the amount of room in the chassis. Unfortunately, it looks like the EVO has a larger battery cover, and from the pictures I doubt that the coil assembly would fit length-wise under the HD2 cover. I'm not sure if there are electronics in the "tail" of the assembly, but if that could be removed I think it would be easy enough to find terminal block that would fit in the indent of the HD2. If you look at the Palm assembly you can see the bulge for the coil, the four bulges for the stabilizing magnets (?) and the terminal, I can't see what would be in the tail besides maybe a diode.
Unfortunately, though, the cover of the HD2 is made of metal, which I think would cut down further the efficiency of the inductive coupling of the coils, maybe critically so. If they're using 1A 5V supplies for the base, it might push the supplied charging amperage low enough that it wouldn't be useful. So I think that until someone fabricates a plastic cover, adapting the Palm Touchstone might be difficult.
I do have to disagree that the use of the principles of induction is anything but mature; these inductive charging systems are basically loosely coupled one-to-one transformers, if I'm not mistaken. Engineers made excellent use of inductive coupling a long time ago, if nothing else those tube amps that some folks like so much sure did.
Regards
Any idea what the order is for the contacts below the battery?
I have my palm pixi cover and touchstone. I plan to remove the cover and attach everything to a hard plastic back cover. I just need to connect it to the right terminals.
jamesbryant said:
Any idea what the order is for the contacts below the battery?
I have my palm pixi cover and touchstone. I plan to remove the cover and attach everything to a hard plastic back cover. I just need to connect it to the right terminals.
Click to expand...
Click to collapse
Unfortunately I have yet to find the pin-outs for these contacts. Please share them if you find the information.
You might get some information from this hack created by Derek Hughes. It looks like he has had a similar idea to yourself. Unfortunately he does not use the hidden contacts under the battery cover, instead he just re-routed the micro usb port, kinda messy and a bit impractical.
This hack was carried by many of the phone and tech blogs. But the links below are from Hackaday.
http://hackaday.com/2010/07/28/inductive-cellphone-charging-without-voiding-warranty/
http://hackaday.com/2010/08/01/update-custom-cellphone-induction-charging/
Good luck.
Can we combine or close this in favor of this one?
http://forum.xda-developers.com/showthread.php?t=762783&page=2
I received an e-mail from Powermat today and it looks like they have a receiver of some sort for various phones, HTC HD2 included. Unfortunately the unit is out of stock at the moment. Did anyone manage to snag one?
http://www.powermat.com/us/receivers/htc/receiver-door-for-htc-hd2.html
http://www.powermat.com/us/receivers/htc/receiver-door-for-htc-hd2.html
theres your solution
oh damit someone was before me well double means better! :>
gmontem said:
I received an e-mail from Powermat today and it looks like they have a receiver of some sort for various phones, HTC HD2 included. Unfortunately the unit is out of stock at the moment. Did anyone manage to snag one?
http://www.powermat.com/us/receivers/htc/receiver-door-for-htc-hd2.html
Click to expand...
Click to collapse
I would get one
seems nice, whoever gets one
please do make a Video
http://www.powermat.com/us/pick-a-b...at-wireless-charging-station-for-htc-hd2.html
Has anyone found the wireless charging accessories for this guy yet?
it's supposed to use the new wireless charging 'standard' so any pad with the same technology should work
e.g. from amazon, type in qi charger
http://www.amazon.com/Energizer-Qi-Enabled-Position-Inductive-Charger/dp/B0041RRORA/ref=pd_cp_e_1
Verizon sells the Wireless Charging Battery Cover.
I tried to paste the link but the Forum won't let me (not till after 8 posts anyways)...
Looks like the back cover is out of stock on Verizonwireless.com. Does anyone know or have heard of this cover working with a Palm Pre Touchstone? Thanks...
Well I got my wireless charging pad and back cover today. The back cover is twice as thick as the stock cover. I came from a Palm Pre so I have a bunch of touchstones. Unforunately, I can confirm that the revo wireless charing system is NOT compatible with the touchstone. The verizon charging pad seems to sense when the phone is near and turns on. The touchstone did not, so that is probably one of the problems. I measured the voltage from the back of the touchstone cover and it wasaround 5.1 Volts. I am hoping I can use the touchstone coil on the stock cover of my revo and wire the charging leads to the revo. The revo has 4 pins for charging but the touchstone only has two, so I need to find out how to wire this. i may have to go through the USB 5V connection. I love my touchstone car mount and I am really hoping to be able to use the touchstones for charging the Revo.
Wireless charging pad: http://www.verizonwireless.com/b2c/...ryDetails&archetypeId=12659&accessoryId=47605
Wireless charging battery cover: http://www.verizonwireless.com/b2c/...ryDetails&archetypeId=12644&accessoryId=47587
Also, gsxrpilot would you say the wireless charging it worth it? for the almost 100 bucks you spend on it? and does gsxrpilot mean you ride a gsxr street bike?
Well there is a deal this month where you get the back free with the pad, so $70 for both. I got a little more discount because I complained that the only reason I needed a new phone and wireless charger is because my Palm Pre stopped working. I would say that it is worth the convenience. Constantly plugging in the micro usb charger due to the low battery life gets old. Now if I can get my touchstones to work, it will really be worth it.
And yes I have a '92 GSXR-750 and love to fly RC Planes and Helis, hence gsxrpilot.
gsxrpilot said:
Well there is a deal this month where you get the back free with the pad, so $70 for both. I got a little more discount because I complained that the only reason I needed a new phone and wireless charger is because my Palm Pre stopped working. I would say that it is worth the convenience. Constantly plugging in the micro usb charger due to the low battery life gets old. Now if I can get my touchstones to work, it will really be worth it.
And yes I have a '92 GSXR-750 and love to fly RC Planes and Helis, hence gsxrpilot.
Click to expand...
Click to collapse
I might have to get that then. Also, that's sick. My neighbor has a 20xx dsxr 750. They are a blast to ride.
Couple of gripes about this...
I bought the Wireless charging back for my Revo and it's not compatible with the Powermat that I already have, apparently the "qi" technology works differently than the induction that the Powermat uses. It IS compatible with the Energizer power mat which uses the same "qi" technology. but you're looking at the same price for either charging base.
Secondly, the wireless charging cover is twice as thick as the stock cover so any skins or cases you want to get for the phone will not fit. My silicon cover almost fits but buldges out on the sides.
I still think wireless charging is the way to go, just a heads up for those of you who are looking into this.
Well I got my touchstone to work with my Revo! I scraped the charging coil from the back of a palm pre cover (bought 2 for less than $5), then hot glued it on the back of my stock revo cover. I had to dremel 4 holes where the metal disks were and added 2 disks per hole since the revo is heavier than the pre and more disks help it stay on the touchstone better. I now have 4 little bumps on the back of my cover. I searched everywhere for the connector that would fit in the stock cover but couldn't find it. So I wound up using magnet wire and soldering directly to the charging tabs on the coil and the top of the connectors on the phone. Didn't have to use too much solder so I could remove the wires if I wanted to go back to the verizon charger. It is nice having the stock cover back, the verizon wireless cover was so much thicker.
gsxrpilot said:
Well I got my touchstone to work with my Revo! I scraped the charging coil from the back of a palm pre cover (bought 2 for less than $5), then hot glued it on the back of my stock revo cover. I had to dremel 4 holes where the metal disks were and added 2 disks per hole since the revo is heavier than the pre and more disks help it stay on the touchstone better. I now have 4 little bumps on the back of my cover. I searched everywhere for the connector that would fit in the stock cover but couldn't find it. So I wound up using magnet wire and soldering directly to the charging tabs on the coil and the top of the connectors on the phone. Didn't have to use too much solder so I could remove the wires if I wanted to go back to the verizon charger. It is nice having the stock cover back, the verizon wireless cover was so much thicker.
Click to expand...
Click to collapse
Any way you could post a picture? I'm interested to see if that setup would work for my powermat.
OK,I think I attached the picture correctly. I did the following:
1. Remove the charging sticker and assembly from the back of the Palm Pre charging cover. Do not use the Pixi charging cover assembly, there is a ribbon in it that cannot be re-assembled after removal.
2. I took my dremel tool and routed some space off the inside back of the cover. The revolution cover is a bit thicker than the pre cover and I was concerned it might be too thick to allow the inductive power through.
3. I also routed some indentations in the back of the cover. (see Phone Back Image) I'm not sure if this was necessary either but I had really hoped I could mount the phone vertically on the touchstone in my car like the pre so i put a second set of metal disks behind the indentations. As it turned out, the revo is much heavier than the pre so this didn't work.
4. I glued the sticker and assembly to the back of the stock cover. First I tried crazy glue which didn't work that well so I wound up using hot glue.
5. Finally I soldered magnet wire from the palm charging tabs to the wireless charging tabs. Top tab to the top charging post (there are 4 of these posts, I only used two) and bottom to bottom. The top tab and post is ground, the bottom tab and post are +5V. (see Phone Inside 2 image)
6. I snapped the cover on (there is still a small gap which I haven't quite worked out yet but it works ok). Stick it on the touchstone and it says "wireless Charging" (which is actually annoying and I thought I had figured a way to remove this notification but it came back)
Now all of my touchstones work for charging and I am not sure I will ever go back to the verizon wireless charger.
gsxrpilot said:
OK,I think I attached the picture correctly. I did the following:
1. Remove the charging sticker and assembly from the back of the Palm Pre charging cover. Do not use the Pixi charging cover assembly, there is a ribbon in it that cannot be re-assembled after removal.
2. I took my dremel tool and routed some space off the inside back of the cover. The revolution cover is a bit thicker than the pre cover and I was concerned it might be too thick to allow the inductive power through.
3. I also routed some indentations in the back of the cover. (see Phone Back Image) I'm not sure if this was necessary either but I had really hoped I could mount the phone vertically on the touchstone in my car like the pre so i put a second set of metal disks behind the indentations. As it turned out, the revo is much heavier than the pre so this didn't work.
4. I glued the sticker and assembly to the back of the stock cover. First I tried crazy glue which didn't work that well so I wound up using hot glue.
5. Finally I soldered magnet wire from the palm charging tabs to the wireless charging tabs. Top tab to the top charging post (there are 4 of these posts, I only used two) and bottom to bottom. The top tab and post is ground, the bottom tab and post are +5V. (see Phone Inside 2 image)
6. I snapped the cover on (there is still a small gap which I haven't quite worked out yet but it works ok). Stick it on the touchstone and it says "wireless Charging" (which is actually annoying and I thought I had figured a way to remove this notification but it came back)
Now all of my touchstones work for charging and I am not sure I will ever go back to the verizon wireless charger.
Click to expand...
Click to collapse
awesome stuff, I will definitely give this a shot and post results.
Sent from my VS910 4G using XDA App
nice hack.....looks like your method could work on most any accessory case
how long would it take to charge the revo?
Charging probably takes slightly longer than through the USB port. The phone can get a little warm too but I have never had a problem. It's really convenient in the car where I glued the touchstone to my center console. If you have ever tried to drive while plugging in the tiny usb cable you will know what I am speaking about.
Things needed,
(1) Any hard plastic sheet to make charging base stand (I had used plastic from square plastic bottle, image attached)
(2) Nokia to sony erricson - old mobiles' charging adapter. (image attached)
(3) Ordinary USB cable with power surge protection (not a must thing to have power surge protection).
(4) Two sided sticking tape. (image attached)
(5) Scissors and sharp blade to cut the plastic sheet.
(6) Soldering iron.
(7) Original sony charger - the one which came with your mobile.
(8) Quick fix to stick the things together.
First of all, you have to make charging case to adapt the phone, measure the width of the phone, add 2 mm to it, draw square (black square as in figure) with this width and height on the plastic sheet from which you intend to make case. Now measure thickness of your phone, add 2 mm to it, draw two parallel lines (blue lines as in figure) on the adjoining rectangular lines on the square, secondly draw another two parallel lines (red lines as in figure) parallel to blue lines to make supporting sleeve. Fold them according to shown in figure, and stick them with quick fix to hold them in place. Allow it to dry.
Then put your phone in this case, mark the placements of golden contact ports (dock ports) on the side wall of the case with pen.
Take the charger adapter, adjust the contact pins according to distance between golden contact points of phone, cut the space on the side wall of the plastic case to fit this charger adapter so that after fixing it, the contact pins of adapter comes in contact with phone golden contact ports.
Now, cut the second end of USB cable (the end towards the power surge protector), find out which one is +ve and which one is -ve, and solder them to the pins of charger adapter after opening the covering of the adapter (non branded adapters are easy to open) so that +ve PIN COMES IN CONTACT TO THE UPPER GOLDEN CONTACT POINT OF THE PHONE, second one is ground, so solder it to the remaining contact pin. Close the cover of charger adapter, remove adjoining plastic insertions pins up to the base, fix adapter with quick fix to the already cut out space of the side wall of the plastic case and allow it to dry.
Plug this USB to your original charger and the DOCK IS READY
You can stick the case to wall with two sided tape as shown in photo, so that when phone is placed in the case, it remains tilted and hence by gravity, golden dock port comes in contact with charger adapter pins.
Hope this tutorial will help you.
----Inspired from XDA-----
Disclaimer:- I have and am using this self made dock to charge my own Sony Xperia ZR without any problem to phone or battery but I do not take any responsibility of what so ever happens to your phone by making and using this charging dock.
Charging speed?
I tried to make a dock using a printer usb cable and it worked but the charging speed was really slow. I got 1% charge in about 20 mins.
Could you please tell the charging speed using your dock?
Thanks.
Charging Speed
DPY! said:
I tried to make a dock using a printer usb cable and it worked but the charging speed was really slow. I got 1% charge in about 20 mins.
Could you please tell the charging speed using your dock?
Thanks.
Click to expand...
Click to collapse
100 % charging required 3 hrs in my case vs 2.5 hrs with direct charging. I suggest you to use the USB cable which came with any mobile device for charging/data transfer. They have very low resistance value. You can also check the power output of native charger and your dock if there is any difference.
Thanks very much for this great tutorial,
But one thing i didn't get is how to adjust the contact pins to the right distance ?
samylyes2304 said:
Thanks very much for this great tutorial,
But one thing i didn't get is how to adjust the contact pins to the right distance ?
Click to expand...
Click to collapse
For that, all you have to do is, open sony charger adapter, remove the pins and replace according to the distance required (distance between golden dock points of phone). There are grooves already present to adjust the space between this two pins in majority of after market charger adapters.
That's my DIY Dock for ZR
That's my DIY Dock for ZR
Hi!
I have the honor to present my version of DIY dock for ZR. ^^
I made it in 1 afternoon. It cost me 0€. (I've collected the 2 pins and the micro USB port on a broken phone that I had in a drawer.)
It's made of wood as you can see. I designed it for my ZR fits perfectly in with the silicone case. But I also intended that the 2 contacts are adjustable so that I can use the phone in the dock without case.
My ZR really fits perfectly, I just have to let go in the dock and it sets up all alone and recharge.
The 2 little pieces of steel works as 2 little springs and permit that the contact of the pins with the phone is always perfect. And the 2 screws permit to adjust exactly the position of the 2 pins.
I will soon paint the dock. But it's not urgent.
The only drawback is that the dock charging speed is not as fast as usb cable charge speed. But It's not a problem of design of my dock.
So there is some photos of my dock.
molly.man said:
Hi!
I have the honor to present my version of DIY dock for ZR. ^^
I made it in 1 afternoon. It cost me 0€. (I've collected the 2 pins and the micro USB port on a broken phone that I had in a drawer.)
It's made of wood as you can see. I designed it for my ZR fits perfectly in with the silicone case. But I also intended that the 2 contacts are adjustable so that I can use the phone in the dock without case.
My ZR really fits perfectly, I just have to let go in the dock and it sets up all alone and recharge.
The 2 little pieces of steel works as 2 little springs and permit that the contact of the pins with the phone is always perfect. And the 2 screws permit to adjust exactly the position of the 2 pins.
I will soon paint the dock. But it's not urgent.
The only drawback is that the dock charging speed is not as fast as usb cable charge speed. But It's not a problem of design of my dock.
So there is so photos of my dock.
Click to expand...
Click to collapse
Looks cool man. This is genius and creativity.
Xperia ZR dock-charger plates polarity??
Hello everyone!
Can anyone tell me the polarity of the Xperia ZR's charging plates? I mean which one is positive and which one is negative?
I want to make my own dock as well but I am afraid that I might fry my phone by messing up with the polarity. I don't have a tester by the way.
Can anyone show me a picture of this?
Something that looks like the attached picture below.
Please do *NOTE that the picture is only to tell you what I mean. It doesn't mean that the content(polarity) is accurate.
Someone please correct the illustration if it's wrong. If it is right, please confirm as well.
Thank you guys!!!
Earl John said:
Hello everyone!
Can anyone tell me the polarity of the Xperia ZR's charging plates? I mean which one is positive and which one is negative?
I want to make my own dock as well but I am afraid that I might fry my phone by messing up with the polarity. I don't have a tester by the way.
Can anyone show me a picture of this?
Something that looks like the attached picture below.
Please do *NOTE that the picture is only to tell you what I mean. It doesn't mean that the content(polarity) is accurate.
Someone please correct the illustration if it's wrong. If it is right, please confirm as well.
Thank you guys!!!
Click to expand...
Click to collapse
Hi
The polarity on the picture is good. The + on the top and the - below.
The first time I hadn't any idea about the good polarity, i've try by putting wires in the plates, it was the good polarity at the firt try. But wanted to try the invert polarity (idiot idea ), the result, ZR shutdown instantly ! I was very scared but it restarted, fortunately.
Don't forget to show us your DIY dock when you will have finish it.
Kodus buddy!
molly.man said:
Hi
The polarity on the picture is good. The + on the top and the - below.
The first time I hadn't any idea about the good polarity, i've try by putting wires in the plates, it was the good polarity at the firt try. But wanted to try the invert polarity (idiot idea ), the result, ZR shutdown instantly ! I was very scared but it restarted, fortunately.
Don't forget to show us your DIY dock when you will have finish it.
Click to expand...
Click to collapse
Thanks buddy!!
I will post some pictures of my own D.I.Y. dock when it's done
How about the charging speed of yours? Is it fast enough? Others in this thread had experienced very slow charging speed. I wonder what caused it. Perhaps, the type of wire they used. So I guess I need to look for good wires suitable for fast charging as well. Any suggestion?
Earl John said:
Thanks buddy!!
I will post some pictures of my own D.I.Y. dock when it's done
How about the charging speed of yours? Is it fast enough? Others in this thread had experienced very slow charging speed. I wonder what caused it. Perhaps, the type of wire they used. So I guess I need to look for good wires suitable for fast charging as well. Any suggestion?
Click to expand...
Click to collapse
Concerning charging speed, it's a boring problem for me.
At the beggining, my ZR charge well but slowly. If I go to bed and connect the ZR at the dock with less than 20%, the tomorow morning, the ZR wasn't completly charged ( around 90%) after 6-7 hours.
And since a moment, my ZR don't want to charge. I put it on the dock, the led light up but it don't charge, it's discharge ! Or sometimes it charge about 1% per 30 minutes, so currently I let my dock in the drawer... :crying:
I don't know from where comes the problem. I've exactly the same electric values as a friend's official Z dock (4,86V and 1650mA for me) but the ZR don't charge. My electric circuit is good as well. Electric contacts seem good.
perhaps
molly.man said:
Concerning charging speed, it's a boring problem for me.
At the beggining, my ZR charge well but slowly. If I go to bed and connect the ZR at the dock with less than 20%, the tomorow morning, the ZR wasn't completly charged ( around 90%) after 6-7 hours.
And since a moment, my ZR don't want to charge. I put it on the dock, the led light up but it don't charge, it's discharge ! Or sometimes it charge about 1% per 30 minutes, so currently I let my dock in the drawer... :crying:
I don't know from where comes the problem. I've exactly the same electric values as a friend's official Z dock (4,86V and 1650mA for me) but the ZR don't charge. My electric circuit is good as well. Electric contacts seem good.
Click to expand...
Click to collapse
That sounds strange. Are you using the original charger unit that came with your phone? How about charging via micro usb directly to the phone, does it still work?
I really think that there must be a specific type of wire that should be used for fast charging.
Also, try to double check the in wires of your dock. There could be short circuit happening inside or maybe the wire itself is nearly, completely cut.
Earl John said:
That sounds strange. Are you using the original charger unit that came with your phone? How about charging via micro usb directly to the phone, does it still work?
I really think that there must be a specific type of wire that should be used for fast charging.
Also, try to double check the in wires of your dock. There could be short circuit happening inside or maybe the wire itself is nearly, completely cut.
Click to expand...
Click to collapse
Yes I use the official wall charger (EP880) designed for the ZR. With USB cable + wall charger my ZR charge fastly.
Concerning wires, it's not needed to use some specific ones. You just need to have the correct electric values at the dock pins. In my case it's good, I've the same power as on an official dock. You need to have same values as you measure with the wall charger, it's approximatly 5V and 1500mA. In my case I've 4,86V and 1650mA with the official wall charger and with my DIY dock.
There is no short circuit because I've the good values in the pins. Due to the conception of my dock I can check the electric values by return my dock when my ZR is in place into it. And all seems good... in theory ! x)
EDIT : I use CM11 Official. I think my problem is a software problem and not an material problem. Mabye with old nightlies dock charging works but with new nightlies there is a bug.
thanks for the tutorial! I'm planning to make one!
Hi !
I have solved my problem of dock !
It's really weird but it was a problem of weldings not properly done. However, the current seems to pass but not charge.
Now I have +1% by 2 minutes of charge.
so this is mine.. made from audio cassette case, old siemens phone data cable and a lot of hot glue.. ^_^;
just until the cheap dock from ebay arrives..
Dude. The aftermarket dock is better than stock and costs 10 bucks on ebay shipping included. Buy that. Best tutorial.
Sent from my C5503 using XDA Free mobile app
Hi, here's my version of a diy dock
Things needed,
1. Styrofoam /thermocol block
2. Kekda charger (that's what it's called in Mumbai)/ universal battery charger
3. USB cable
4. Sharp knife
5. Screw driver with a 4inch + shaft.
6. Heat.
Get hold of a Styrofoam /thermocol block cut to desired shape so as to fit your ZR and outer body. A 1 inch thickness on all walls is recommended.
Take the universal battery charger and remove the battery holder part having springness in it.
Take the screw driver and heat it and then cave in a slot for the Kekda charger in the back of the Styrofoam block by slowly melting ( Styrofoam shrinks in the presence of heat), else use a heated solder gun to cave in a slot.
Cut one end of USB to expose wires and solder on the Kekda charger part.
Red wire + on top of the charging pin and black - on lower.
After soldering press in the Kekda charger and adjust the pins accordingly.
Done.
http://instagram.com/p/tTMg4iIriD/
http://instagram.com/p/tTMeHoorh8/
http://instagram.com/p/tTMa1OIrh3/
http://instagram.com/p/tTMVc4Irhu/
Unable to upload pictures on xda.... Sorry
Sent from my C5502 using xda app-developers app
---------- Post added at 01:12 AM ---------- Previous post was at 01:06 AM ----------
Sorry i forgot to show whats a Kekda charger
http://instagram.com/p/tTNGbLorjS/
Sent from my C5502 using xda app-developers app
My second diy dock. Better than the first first one
The circuit board is just to attach a mini usb female on a sturdy thing using fevikwik ( a super fast instant adhesive glue.) The pins used are of a old nokia phone where yhe battery is inserted in the phone.
Total cost in INR,
Nokia pins : 10
Circuit board : free from scrap
Mini usb female: 20
Body : free .
Total 30 . I.e. 1/2 a $
Sent from my Xperia ZR using XDA Free mobile app
Guys save me....
Look i need help........i accidentally put the wrong polarity of the cable to wrong plate on the phone ....i had around 80% battery that time.Now the phone wont start . I tried taking out and putting back the battery but it still wont start......Expecting a reply ASAP :crying:
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!
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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...
Click to collapse
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
Click to expand...
Click to collapse
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.
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?
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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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Click to collapse
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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Click to collapse
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.