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Ok, This seems like such a obvious thing to do that there must be a reason it hasn't been done yet.
The idea, the galaxy s i9000 has a thin plastic back cover, which wouldn't interfere with an induction charging mod. So why hasn't one been done yet?
secondary question:
via induction charging; Is it possible to charge directly to the battery connectors? or does the charge need to go through the USB port to work? I think it's a bit ugly having wires protruding out that then need to connect to a usb head and then plug into the phone... I imagine that the battery may still charge with a direct charge to the battery, but the software may not control it. (i.e. no awareness that the phone is on charge)
What do you guys think?
Cheers,
Evan
Evanlw85 said:
Ok, This seems like such a obvious thing to do that there must be a reason it hasn't been done yet.
The idea, the galaxy s i9000 has a thin plastic back cover, which wouldn't interfere with an induction charging mod. So why hasn't one been done yet?
secondary question:
via induction charging; Is it possible to charge directly to the battery connectors? or does the charge need to go through the USB port to work? I think it's a bit ugly having wires protruding out that then need to connect to a usb head and then plug into the phone... I imagine that the battery may still charge with a direct charge to the battery, but the software may not control it. (i.e. no awareness that the phone is on charge)
What do you guys think?
Cheers,
Evan
Click to expand...
Click to collapse
Possible? Yes. Safe? No.
Direct connection to the battery will probably overcharge the battery.
Sent from my GT-I9000 using XDA App
Palm Pre has it, and there was a mod for an Evo 4G using the Palm Pre coil; so a mod is perhaps technically possible. But I wouldn’t mess around with it. Inductive charging is inefficient add produces more heat compared to normal charging. Galaxy S heats up while charging even the normal way, I don’t want to make it worse.
As for charging methods, generally speaking, I much prefer open charging contacts with a desktop cradle like design (like used in home cordless phones) over inductive charging.
wouldn't necessarily overcharge if a charge controller was in place. (direct connection to battery)
Palm Pre mod here
http://forum.xda-developers.com/showthread.php?t=862879
Although no sign of him since the mod, which is a little worrying
FlanFlinger said:
Palm Pre mod here
http://forum.xda-developers.com/showthread.php?t=862879
Although no sign of him since the mod, which is a little worrying
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Click to collapse
Still here , and Phone including the mod are still working.
I'm quite satisfied with the mod, the only real flaw is that the compass is practically unuseable (but I never really used the compass, so i don't care)
And I does charge a little slower , the back (were the coil is sitting) gets warm after sometime , but nothing to worry about (maybe 38°C).
I would not recommend to charge the battery directly the 5V that the coil "produces" may not only overcharge the battery but may also destroy parts of the phone.
I connected the wires to the usb-port (Internally), so its like you are charging over the usb port, so there's no risk of overcharging.
Any details on how you did that? from the other thread it looks like you have one wire running off to a screw (ground point?) and another directly to the battery.
take a look at this:
well thats awsome although im a bit worried about messing with my phone
http://www.qianqin.de/2011/09/18/samsung-galaxy-s-wireless-inductive-charging-mod/
He's already ordered parts for making a fully invisible inductive charging mod (with the MicroUSB slot being completely free) so check the website in about a week or two.
can't get hold of a palm pre back... so need to make our own coil. But what length does the coil need to be?
This is all very impressive. But induction charging seems pretty useless since you can't really use the phone while charging.
disclaimernotice said:
This is all very impressive. But induction charging seems pretty useless since you can't really use the phone while charging.
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music? remote desktop? while sleeping? tap with it on the stand anyway? attach a magnet?
My charger squeeks. When the tablet (or dock) is plugged in, and is fully charged, the charger starts squeeking. When I unplug the proprietary connector from the tablet/dock the noise stops. Whenever there is something to be charged (either dock or tablet), the squeeking stops.
So basially, the charger only squeeks when it is plugged in and not actually chaging, and does not squeek when it is plugged in and 'idling'.
Anyone else have this issue? I have a European/Dutch outlet connector btw.
Sent from my ASUS Transformer Pad TF700T
Vo01985 said:
My charger squeeks. When the tablet (or dock) is plugged in, and is fully charged, the charger starts squeeking. When I unplug the proprietary connector from the tablet/dock the noise stops. Whenever there is something to be charged (either dock or tablet), the squeeking stops.
So basially, the charger only squeeks when it is plugged in and not actually chaging, and does not squeek when it is plugged in and 'idling'.
Anyone else have this issue? I have a European/Dutch outlet connector btw.
Sent from my ASUS Transformer Pad TF700T
Click to expand...
Click to collapse
Same here, and it is normal behavior and nothing to worry about. As far as I know, it's just a higher frequency version of the well-known 50Hz 'hum' and has to do with electronics in the charger. Most transformers (i.e., power converters) have this, as even when you unplug your device, there is still induction going on in the secondary spool of the transformer, and therefore, it is still 'working', albeit with no actual, useful output.
That's also why a power converter still consumes electricity if you simply unplug a charged device and then go to school/work/whatever -- to stop it from '' bleeding', you need to unplug the charger itself from the wall socket.
Check some others you may have laying around and if you put your ear close enough, you'll hear them doing it too. Hell, even my television set does it.
Eek, Dutchies invasion!
Anyway, Yep, same here.
You guys sure it isn't a Dutch plug problem? That's three of us now..
I've noticed this on mine here in the US, but I'll try to pay more attention and see if it does it on our 60 Hz frequencies or not.
Sent from my ASUS Transformer Infinity Running Tapatalk.
johnlgalt said:
I've noticed this on mine here in the US, but I'll try to pay more attention and see if it does it on our 60 Hz frequencies or not.
Sent from my ASUS Transformer Infinity Running Tapatalk.
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Itwill probably do exactly the same, although at a 20% higher frequency. EDIT: actually, that might be a good thing if you're slightly older, for I must admit the frequency of the beep is very annoying (I have pretty good hearing, and the tablet signalling it is charged from next to my bed is irritating to say the least....).
And, err... yeah, it was kinda obvious this attracted a lot of attention from the Low Countries. Luckily, I am pretty sure we all have the same kind of electricity (and applicable laws of physics).
Annoying is understating it just a tad... The noise is reminiscent of a humongous mosquito on steroids preforming a carnaval fanfare at 0200. Only this one I can not silence with a good whack from a swatter. (Bit expensive..)
Oh no! I have a very special kind of Twents electricity! The non-existent variant. Dear Essent, kindly put your football reruns on pause and get your lazy arses back to work! :silly:
Send form my HTC HD2
ShadowLea said:
Annoying is understating it just a tad... The noise is reminiscent of a humongous mosquito on steroids preforming a carnaval fanfare at 0200. Only this one I can not silence with a good whack from a swatter. (Bit expensive..)
Oh no! I have a very special kind of Twents electricity! The non-existent variant. Dear Essent, kindly put your football reruns on pause and get your lazy arses back to work! :silly:
Send form my HTC HD2
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Yeah, the Dutch electricity is among the best in the world... IF you have it available. Seems we're having cutouts more often than in the past, although that might be me getting old.
When I charged the 700 overnight for the first time, my girlfriend/now wife poked me awake -- since I hold the designated household mosquito killer position -- that there was this HUGE mosquito that needed swatting. She said it sounded so humongous that she was scared that if the thing would bite, she would be sucked empty as a flat tire. :laugh: I saw nothing, obviously, only hearing a slight beep, only finding out the most probable suspect the next morning.
Yes, they do seem to become increasingly more common... Probably because the companies have a hard time realizing the calendar says 2012 and not 1912 Ironically, they nearly always coincide with a football match...
That was one very expensive 10,1 inch sized mosquito! :laugh: At least it doesn't fly... (I hope not O_O)
Vo01985 said:
So basially, the charger only squeeks when it is plugged in and not actually chaging, and does not squeek when it is plugged in and 'idling'.
Anyone else have this issue? I have a European/Dutch outlet connector btw.
Click to expand...
Click to collapse
Another NL here, I hear it too. I usually have it charge next to my bed, as well, and the sound sometimes wakes me up. It's not uncommon though. I have a charger from a Dell laptop that has the same issue.
xcal321 said:
Another NL here, I hear it too. I usually have it charge next to my bed, as well, and the sound sometimes wakes me up. It's not uncommon though. I have a charger from a Dell laptop that has the same issue.
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the chargers use choppers . please do search on wikipedia or google about them. it is a normal behaviour . you are welcome my friends
Sent from my GT-N7000 using xda app-developers app
gbb14 said:
the chargers use choppers . please do search on wikipedia or google about them. it is a normal behaviour . you are welcome my friends
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Yea we figured as much
We're just doing what us Dutchies do best: Complain to eachother about it.
MartyHulskemper said:
Itwill probably do exactly the same, although at a 20% higher frequency. EDIT: actually, that might be a good thing if you're slightly older, for I must admit the frequency of the beep is very annoying (I have pretty good hearing, and the tablet signalling it is charged from next to my bed is irritating to say the least....).
And, err... yeah, it was kinda obvious this attracted a lot of attention from the Low Countries. Luckily, I am pretty sure we all have the same kind of electricity (and applicable laws of physics).
Click to expand...
Click to collapse
I have an unusual sensitivity to high frequency noises. However, I misstated my original post - I meant to say I have not noticed it thus far.
I am slightly older (41) but I also have tinnitus in my ears, so it's a bit strange that I am s attuned to high frequency noises at all. Maybe if I am lucky, the whine is at the same frequency as the ringing in my ears, and it is thus in phase or canceled out?
johnlgalt said:
I have an unusual sensitivity to high frequency noises. However, I misstated my original post - I meant to say I have not noticed it thus far.
I am slightly older (41) but I also have tinnitus in my ears, so it's a bit strange that I am s attuned to high frequency noises at all. Maybe if I am lucky, the whine is at the same frequency as the ringing in my ears, and it is thus in phase or canceled out?
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I dunno -- I'm 33 years old and have tinnitus as well, and I am very high-frequency sensitive, as well. Might be the condition in itself, or maybe everyone has tinnitus when you'd measure but most people just do not have the hearing to pick it up <?> -- talk about bending a disadvantage to something positive, hahaha! It depends on the build and proportions of your inner ear, though, which explains why I pick it up so clearly and you seem not to. Call yourself lucky though, for I have taken to charging it during the day when I am at home and busy with the kids, or in the hospital during a shift, when I don't have that much time to play around with it anyway. I try to avoid the overnight charging at the moment; I might pick it up where I left if/when my hearing goes south and I can't make it out anymore.
EDIT: slightly (at best) off-topic, but can you hear the power converter of a cathode-ray television set when you turn it on? I can hear all kinds of electronic equipment being turned on -- with the volume down to zero, obviously, for the humorously-inclined in here.
I'm just wondering. Switching power supplies typically operate between a few hundred KHz and a couple of MHz or so. To keep the same output voltage when there is no or very little load however, they often employ a "hiccup" mode. It wakes-up at, or near ultrasonic frequencies. At 240V input, it hiccups at a lower frequency than at 120V, shifting down to the audible range. It's likely that the magnetic components employed resonate acoustically, so only certain load and input voltage range will result in an audible pitch. It may not help with the problem, but at least we could have some sort of an explanation handy?
If the squeek is too loud though, I'd be thinking to RMA it and try to get a quieter one. I can't hear mine unless I put the adapter to my ear. I wonder how common the problem is? If the vibration is too strong though, some components could eventually fail.
If I can dig it up again, I'll hang the TF700 onto the USB wall charger thingy I have -- I can transplant the cable, so that shouldn't be a problem. What could be a problem, however, is its charging capacity -- I can see how the Tf700 outruns its supply, at least when it's trying the charge it while the 700 is running... (Kinda like trying to charge your car battery with rechargeable AA batteries. )
MartyHulskemper said:
If I can dig it up again, I'll hang the TF700 onto the USB wall charger thingy I have -- I can transplant the cable, so that shouldn't be a problem. What could be a problem, how ever, is its charging capacity -- I can see how the Tf700 outruns its supply, at least when it's trying the charge it while the 700 is running... (Kinda like trying to charge your car battery with rechargeable AA batteries. )
Click to expand...
Click to collapse
You're right. I think if you are using any USB charger to charge TF700, you might get disappointed. It'll be the same as charging it via any USB port, verrryy slowly... The thing is, TF700 internal charging circuit must be limiting the power it draws to less than 2.5W, since USB 2 standard limits consumption to 0.5A. The Asus tablet charger's label indicates that it can put out 2A at 5V or 1.2A at 15V. On the other hand, the tablet's cable uses a special USB plug that has a fifth pin deep in the middle. So, don't use any USB extension cables to charge when you're in a hurry. When the tablet's USB cable is plugged in, the Asus wall charger detects this 5th pin then steps up its output to 15V. Now the TF700 can draw as much as 18W to charge its battery and to power the tablet simultaneously. Sorry, I'm getting off topic here.
So the power cord is really annoying. The brick has a cord coming straight out of it. I was hoping that I'd be able to swap usb cords. I know the Surface has higher power requirements but I was hoping I could swap USB cords and charge my phone with the Microsoft plug. I do this with my ipad 2 wall wart. Reading this over, I realize I'm probably full of ****.
moosic said:
So the power cord is really annoying. The brick has a cord coming straight out of it. I was hoping that I'd be able to swap usb cords. I know the Surface has higher power requirements but I was hoping I could swap USB cords and charge my phone with the Microsoft plug. I do this with my ipad 2 wall wart. Reading this over, I realize I'm probably full of ****.
Click to expand...
Click to collapse
I agree tha tthe power cord sucks. I connected it and then 20min later realized it wasn't charging because it wasn't seated just right. I wouldn't even mind a slow USB charge if I could hok it up when I go to bed.
Hopefully someone will realse a better charger 3rd party.
The badly-seated charger was mentioned in both of the more-detailed reviews (Ars Technica and Anandtech). The reason it's one piece is precisely to prevent people from plugging it into other USB periphs--and frying them with its higher voltage. As for a 3rd-party charger, it'll be a while, as MS has a patent pending on the connector.
http://www.engadget.com/2012/06/14/microsoft-magnetic-patent-application/
e.mote said:
The badly-seated charger was mentioned in both of the more-detailed reviews (Ars Technica and Anandtech). The reason it's one piece is precisely to prevent people from plugging it into other USB periphs--and frying them with its higher voltage. As for a 3rd-party charger, it'll be a while, as MS has a patent pending on the connector.
http://www.engadget.com/2012/06/14/microsoft-magnetic-patent-application/
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Click to collapse
Not sure why they would want to patent it in its current design. It is a horrible implementation - whoever designed it at MS should be fired.
I am not sure if I am the only one, but I am having a hard time getting it seated just right to start charging my Surface. I connect it and it looks like its on, but you have to finagle it to get the surface to see it and switch to charging. I litteraly spent 3 minutes last night trying to get it to see it. Not very user friendly for people on the go, Maybe Apple will come up with better power cord for MS - LOL
guitar1969 said:
Not sure why they would want to patent it in its current design. It is a horrible implementation - whoever designed it at MS should be fired.
I am not sure if I am the only one, but I am having a hard time getting it seated just right to start charging my Surface. I connect it and it looks like its on, but you have to finagle it to get the surface to see it and switch to charging. I litteraly spent 3 minutes last night trying to get it to see it. Not very user friendly for people on the go, Maybe Apple will come up with better power cord for MS - LOL
Click to expand...
Click to collapse
I haven't been having quite that much trouble, but I agree the cord is a little annoying to seat properly. I did notice today that the cord has a light on the top which is a more convenient way to see if its connected properly than checking the tablet.
moosic said:
I was hoping I could swap USB cords and charge my phone with the Microsoft plug.
Click to expand...
Click to collapse
Since the Surface has a full-size USB port, can't you charge your phone from your surface while it's also charging (or not)? I know it's not quite the same, but I don't think we've ever had a tablet that could charge a phone before...
Jaxidian said:
Since the Surface has a full-size USB port, can't you charge your phone from your surface while it's also charging (or not)? I know it's not quite the same, but I don't think we've ever had a tablet that could charge a phone before...
Click to expand...
Click to collapse
So which way do you orient it - Light facing upward or light facing downward in relation to the tablets top and bottom in landscape mode. It works both ways but not sure which is easier to get it working yet.
yes, you should have no issue charging your phone through the usb port on the surface.
i agree that the connector is a little tough to get to click in, but i haven't had more than 5 seconds worth of effort to get it to go, it could all really be solved by them putting slightly stronger magnets into the connector or the port so that it pulls itself into the right position. part of the issue also seems to come from the angle of the sides since normally one tries to attach it perpendicularly to the screen, but it's a little bit more of an angle you have to guide it in with.
Isn't there a LED on it as well? If it's seated correct the LED would light up?
bmstrong said:
Isn't there a LED on it as well? If it's seated correct the LED would light up?
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Click to collapse
correct, it glows white when it is connected, it would be nice if it changed color when the device was fully charged, but it's not a huge deal regardless
It is still very tempermental to get connected compared to other designs - Hopefully there will be some third party option shortly. I spoke to MS about it and they said part of the reason for the design was to avoid broken connectors as occur often on laptops - Whatever they say, it is way to difficult to get it to charge right. Can you imagine asking someone else to plug your surface in - they will never figure it out without help
adiliyo said:
correct, it glows white when it is connected, it would be nice if it changed color when the device was fully charged, but it's not a huge deal regardless
Click to expand...
Click to collapse
I had the same thought...
It's nice to know when your device is fully charged without having to turn it on.
guitar1969 said:
It is still very tempermental to get connected compared to other designs - Hopefully there will be some third party option shortly. I spoke to MS about it and they said part of the reason for the design was to avoid broken connectors as occur often on laptops - Whatever they say, it is way to difficult to get it to charge right. Can you imagine asking someone else to plug your surface in - they will never figure it out without help
Click to expand...
Click to collapse
while the break away ability of a magnetic connection is great in protecting the ports and devices from sudden and accidental disconnections, the implementation of the magsafe connection on macs is better done, and the only real difference is stronger magnets, if the connector could guide itself in via the magnets, i feel like no one would be complaining about it.
i have gotten better at helping it connect lately though...i've also realized it charges so fast that the light change isn't as necessary, if i have it connected for anywhere near an hour it's generally full or almost full when i unplug it.
wow, some of you guys are having so much trouble you wish for the designer to be fired? I haven't had one issue yet, I plug it in with the LED facing down, I just slide it along the side of the case and when the magnets stick I twist it whichever way it needs to be turned to straighten out. Once it clicks in and feels good I wave my hand under it to make sure I see white on my palm and it's good to go. Maybe a 5 second ordeal?
Imprezed said:
wow, some of you guys are having so much trouble you wish for the designer to be fired? I haven't had one issue yet, I plug it in with the LED facing down, I just slide it along the side of the case and when the magnets stick I twist it whichever way it needs to be turned to straighten out. Once it clicks in and feels good I wave my hand under it to make sure I see white on my palm and it's good to go. Maybe a 5 second ordeal?
Click to expand...
Click to collapse
I was having trouble before until I found a method that was consistent for me as well, and I pretty much do the same as you. Line it up parallel to the port and then twist it into place.
i just put in the wireless charging mat in my car and its great. very useful. the way im using it is perfect for me in case any of you want to do the same.
what i bought was the LG charging mat (the cheap one) and killed the speaker in it so it doesnt beep constantly. i always drop my phone on top of the center console when i drive and (i know i shouldnt but) use it constantly to switch through songs while its connected to my car with bluetooth. and do other phone stuff like text once in a while (may i burn in hell, i know i know). the qi charging mat fit perfectly on the center console.
unfortunately, that charging mat came with a wall charger and not a usb charger. so i bought a power converter that went from a car charging port to a wall outlet.
it all fit perfectly and seeminglessly. i guess it depends on the car because not all cars have their cigarette lighters arranged the way i do.
here are some pictures of the outcome.
That looks great haha, does the charging mat "grip" the phone with a rubberized surface (or something of that sort) or do you have to worry about it sliding around?
Sent from my Nexus 4 using xda app-developers app
That looks really good. I wish my car had its cigarette lighter in the center console instead of on the dash, if I do the same thing I will have wires running all over the place.
I would add one of those sticky pads on top of the charging pad to prevent the phone from flying off the charger in a short stop or sharp turn at 50 mph lol.
I have seen a few pick up trucks that have center consoles with a recessed cavity in it's armrest (late mode Chevys) that have potential for pad installs like yours.
Actually I have the ringke slim case on my phone so it doesn't slide around as much. But if the phone was naked, yeah it would fly off. The pad surface is pretty grippy though. Works perfect. It's even better because I put an NFC tag on it so every time I drop my phone on it, Bluetooth turns on, WiFi turns off. Lol
I can't see the images?
donavo said:
Actually I have the ringke slim case on my phone so it doesn't slide around as much. But if the phone was naked, yeah it would fly off. The pad surface is pretty grippy though. Works perfect. It's even better because I put an NFC tag on it so every time I drop my phone on it, Bluetooth turns on, WiFi turns off. Lol
Click to expand...
Click to collapse
Does the N4 continually read the NFC tag when its placed onto it, draining the battery? or does the NFC only read once and shut off?
I always wondered this
Nice
Sent from my GT-P7300 using xda app-developers app
donavo said:
Actually I have the ringke slim case on my phone so it doesn't slide around as much. But if the phone was naked, yeah it would fly off. The pad surface is pretty grippy though. Works perfect. It's even better because I put an NFC tag on it so every time I drop my phone on it, Bluetooth turns on, WiFi turns off. Lol
Click to expand...
Click to collapse
Thats a brilliant setup, seriously XD.
donavo said:
i just put in the wireless charging mat in my car
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I am curious what you did for power. The mat's input is 19 volts.
Solutions Etcetera said:
I am curious what you did for power. The mat's input is 19 volts.
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Mentioned it in the op. I bought a converter/amp to convert the power from the car charger to a wall charger equivalent. The plug of the charging mat goes into that converter, then the converter goes into the car.
And the NFC just reads once every time you put it there. So no I don't think it's continuous. But yeah it works great Lol.
donavo said:
Mentioned it in the op. I bought a converter/amp to convert the power from the car charger to a wall charger equivalent.
Click to expand...
Click to collapse
It wasn't quite clear to me as you are actually using an inverter with the stock wall wart, and right?
I have to think that using a cheap inverter (square wave) to power an ac-dc power supply is extremely inefficient. You may not want to keep this plugged in 24/7 as inverters can draw a fair amount of current just idling.
I sourced one of these - http://www.bixnet.com/12vdcto19vdc.html - that would be far more efficient, and and draw virtually nothing at idle. Seems 19vdc is more common than I thought as it is a common input for laptops.
Solutions Etcetera said:
It wasn't quite clear to me as you are actually using an inverter with the stock wall wart, and right?
I have to think that using a cheap inverter (square wave) to power an ac-dc power supply is extremely inefficient. You may not want to keep this plugged in 24/7 as inverters can draw a fair amount of current just idling.
I sourced one of these - http://www.bixnet.com/12vdcto19vdc.html - that would be far more efficient, and and draw virtually nothing at idle. Seems 19vdc is more common than I thought as it is a common input for laptops.
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Click to collapse
Idk much about electrical engineering. I just went to Fry's and asked which one would do what I'm trying to achieve. When the car is not running, the cigarette lighters don't get any power. If that's what you meant by leaving it plugged in. Yeah I agree though, you can't really get efficient wall socket quality power. But the thing I bought gives just enough to power the lg charger which is all I need. I'm leaving it plugged in cuz it's practically turned off when the car is not running. But thanks for the heads up. I was more concerned about it overheating but my car is smart lol. Inside the center compartment there is an ac vent lmao. So while driving, air will just flow there.
And that link you gave. That thing looks like it would be perfect for me Lol. I might buy that one if the one I got gives me problems
donavo said:
And that link you gave. That thing looks like it would be perfect for me Lol. I might buy that one if the one I got gives me problems
Click to expand...
Click to collapse
Check out this one... much cheaper and simpler.
http://www.amazon.com/GSI-Quality-Charger-Adapter-Notebook/dp/tech-data/B004J15XOY/ref=de_a_smtd
Solutions Etcetera said:
Check out this one... much cheaper and simpler.
http://www.amazon.com/GSI-Quality-Charger-Adapter-Notebook/dp/tech-data/B004J15XOY/ref=de_a_smtd
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Click to collapse
Wow definitely better. I'll probably get it one of these days.
thats a nice set up you got there, is it blocking the cup holders? that just made me think how perfect a cup holder induction charger would be.
neotekz said:
thats a nice set up you got there, is it blocking the cup holders? that just made me think how perfect a cup holder induction charger would be.
Click to expand...
Click to collapse
I have it on top of the cup holder door. I was thinking of taking apart the door and putting the charger internals inside. But the car is a lease and I don't feel like it Lol
Solutions Etcetera said:
Check out this one... much cheaper and simpler.
http://www.amazon.com/GSI-Quality-Charger-Adapter-Notebook/dp/tech-data/B004J15XOY/ref=de_a_smtd
Click to expand...
Click to collapse
I figured I'd give this one a try. Just arrived from Amazon, but its got the wrong tip to fit into the LG wireless charging pad. Anyone know how to mod this with the proper one?
Hi I bought 2 keyboard folio from eBay brand new but it is like it haves a faulty battery. When I try to pair it with the tablet through NFC I press yes on the "do you want to pair the Nexus keyboard" but after some seconds it fails. But when I put the keyboard to charge it works. After I pair the devices and use the keyboard when I unplug it it stops working straight away. So I was wondering if this happened to anyone else and if it is any key combinations to hard reset the keyboard or something like that?
More people having the same issue!!!!!!!!
https://productforums.google.com/fo...ce=footer#!msg/nexus/miyKVULMUWo/7vH_5T0OGwAJ
Sent from my Nexus 9 using XDA-Developers Legacy app
Has anyone found a way to replace the battery or fix the charging issue, battery not charging?
Has anyone tried using a portable external battery charger to power the keyboard, how long does it last?
Until you unplug the external battery.
Sent from my HTC 10 using XDA-Developers Legacy app
I opened the keyboard and the battery seems to be dead because I tried to charge it with another charger and nothing was happening. On the keyboard I put another battery 400mah but still wasn't charging so I thing the board is faulty too. I will take a picture of the battery and upload it because I tried to find one but I couldn't.
Sent from my HTC 10 using XDA-Developers Legacy app
vincenzo697 said:
I opened the keyboard and the battery seems to be dead because I tried to charge it with another charger and nothing was happening. On the keyboard I put another battery 400mah but still wasn't charging so I thing the board is faulty too. I will take a picture of the battery and upload it because I tried to find one but I couldn't.
Sent from my HTC 10 using XDA-Developers Legacy app
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Please upload any pictures you can, would be really helpful.
I was considering buying a simple small portable battery charger 1500-2200-4000~ and using it, but it would discharge too quickly, attempting to charge the faulty one in the folio. Also considered taking the folio battery/charging component and splicing in portable battery charger..
Another option I thought of, is using a male to male micro usb cable from the Nexus 9 to the folio.
I am using a generic micro usb charger works fine. I also bought a male to male micro usb cable attached to the Nexus 9 and folio, also works great. The keyboard hardly registers drawing any power.
Sorry for the late reply. That's the original battery of the keyboard which i tried to find but couldn't. The hard part is that it needs to be 1.5mm to 2mm of thickness Max so the keyboard top part can close normally. The other pictures is the modification I made replacing the battery but with a thicker one. It wasn't charging so that's why I came to the conclusion that it must be the board too that it is faulty. I connect the - and + cables from the charger to the exposed cables to charge the battery and that's it.
Sent from my HTC 10 using XDA-Developers Legacy app
That's a lot of hardware. So the battery may be good and its the charger that's faulty. Thanks for the images!
clockcycle said:
That's a lot of hardware. So the battery may be good and its the charger that's faulty. Thanks for the images!
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NO. The battery too is faulty. Because I connect it straight to the charger and it doesn't charge.
Maybe?
vincenzo697 said:
NO. The battery too is faulty. Because I connect it straight to the charger and it doesn't charge.
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Hey... Just bought a brand new one with the same issue straight out of the box.
Have you tried measuring the original battery with a multimeter?
The battery protection circuits will sometimes protect the battery from undervoltage by not letting them charge any more as it potentially damages them...
One way to attempt to recover the batteries is to remove the protection PCB and charge them with a LiPo charger at super low amps till they get up to like 3.3v then letting the original charger and battery protection finish charging it... (Kinda dangerous if battery really is damaged)
These things sat on shelves for years.... I can't imagine the batteries didn't drain.
Edit: did you take the keyboard apart??? Lol... Is it glued together??
I took mine apart... This is not a reversible process lol... Checked battery voltage and sure enough... 0 volts.... There's no Li-Ion charger that will ever try to charge that battery as there is a risk of fire.
Looks like HTC cheaped out on the battery protection circuit and it didn't cut off the battery below 3.3v and let it get to 0v... Gonna have to try to recover the battery using my lab power supply to trickle charge it... My lipo charger complains and won't charge it at all.
I'm having the same problem. Just bought one of these on Amazon for $30 and was excited to use it. How did they charge $130 for this when it came out?? This is useless. I'm going to have to return this junk. Any solutions before I do?
The solution is easy.
I have effected this repair on multiples of the nexus 9 folio keyboard.
Someone said earlier that the charging circuit is bad in addition to the cell being at 0v. This is simply not true. For the charging circuit and the cell to both be bad you will have likely hit the lottery in a bad way, or shorted and caused damage yourself.
Truth is that as mentioned before their protection circuit on their $130 keyboard was not up to the task. I make the assumption also that they overpriced these so heavily they sat until their hardware choices became apparent by making them DOA after the cell's voltage fell too low.
Someone stated that opening the keyboard is irreversible, this is also untrue, it only requires a bit of skill and patience.
Take it for what it is, because I would never recommend someone to revive a cell that had been sitting below 3.2v, it's just unsafe, but this is what worked for me as I didn't feel like digging through china stock to find a matching cell.
The cell is at 0v, so the fix is simple, connect another similar chemistry (3.2v-4.2v) cell in parallel (between the protection circuit and the cell.) I just used and 18650 from a laptop battery. Let's call this a "jump start." Start the charging and disconnect the second cell. Red charge LED should remain solid and charge cell 1 to 4.2v and you are good to go.
As far as the details, we know that the cell is on the left side, so only heat and slice adhesive from just beyond the corner to the center, slide your tool under the cell to remove the adhesion from the main body and carefully slip the cell out far enough to get at the contacts in order to get between the protection circuit and the cell.
main points
1 DO NOT PUNCTURE THE CELL (ALUMINUM TEARS EASILY)
2 DO NOT DAMAGE THE RED AND BLACK LEADS FROM THE PROTECTION CIRCUIT TO THE MAIN BOARD
3 DO NOT PRY OPEN THE OUTSIDE CORNER NEXT TO THE CELL AS THIS CORNER IS MORE SUSCEPTIBLE TO DEFORMATION THAN OTHER AREAS
Probably best left to a skilled tech, but it can certainly be done.
The adhesive htc uses is much like hot glue, so after scraping the old glue out reseal and press with a hot glue gun (precision tip recommended,) easy peasy.
On a final note, shame on you htc (and google.)
k2thec said:
The solution is easy.
I have effected this repair on multiples of the nexus 9 folio keyboard.
Someone said earlier that the charging circuit is bad in addition to the cell being at 0v. This is simply not true. For the charging circuit and the cell to both be bad you will have likely hit the lottery in a bad way, or shorted and caused damage yourself.
Truth is that as mentioned before their protection circuit on their $130 keyboard was not up to the task. I make the assumption also that they overpriced these so heavily they sat until their hardware choices became apparent by making them DOA after the cell's voltage fell too low.
Someone stated that opening the keyboard is irreversible, this is also untrue, it only requires a bit of skill and patience.
Take it for what it is, because I would never recommend someone to revive a cell that had been sitting below 3.2v, it's just unsafe, but this is what worked for me as I didn't feel like digging through china stock to find a matching cell.
The cell is at 0v, so the fix is simple, connect another similar chemistry (3.2v-4.2v) cell in parallel (between the protection circuit and the cell.) I just used and 18650 from a laptop battery. Let's call this a "jump start." Start the charging and disconnect the second cell. Red charge LED should remain solid and charge cell 1 to 4.2v and you are good to go.
As far as the details, we know that the cell is on the left side, so only heat and slice adhesive from just beyond the corner to the center, slide your tool under the cell to remove the adhesion from the main body and carefully slip the cell out far enough to get at the contacts in order to get between the protection circuit and the cell.
main points
1 DO NOT PUNCTURE THE CELL (ALUMINUM TEARS EASILY)
2 DO NOT DAMAGE THE RED AND BLACK LEADS FROM THE PROTECTION CIRCUIT TO THE MAIN BOARD
3 DO NOT PRY OPEN THE OUTSIDE CORNER NEXT TO THE CELL AS THIS CORNER IS MORE SUSCEPTIBLE TO DEFORMATION THAN OTHER AREAS
Probably best left to a skilled tech, but it can certainly be done.
The adhesive htc uses is much like hot glue, so after scraping the old glue out reseal and press with a hot glue gun (precision tip recommended,) easy peasy.
On a final note, shame on you htc (and google.)
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I want to try this repair on my keyboard. do you have pictures where to connect the wires.
I have a laptop battery
i have the case pulled apart
Just want to make sure that the wires are in the correct place.
The folio battery has a USB jack at one end and a switch (on/off perhaps) and a blue light at the other. What's happening when the blue light blinks?
Lindommer said:
The folio battery has a USB jack at one end and a switch (on/off perhaps) and a blue light at the other. What's happening when the blue light blinks?
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i meant if i take the keyboard apart.
I ordered another on off ebay, but i used the suggestion i thiunk i saw on here. I have a microusb OTG plugged into the nexus 9 and running a usb to the keyboard. it is supplying enough power to run he keyboard. also it does not seem top drain much power at all.
I'm typing this message on the folio keyboard. if the other keyboard folio has the same issue then i can at lease use this solution to use the folio.
now i need to order a shorter usb to microusb cord so i dont have to rubber band the cord and look sloppy when carrying it around
Thanks for that. But what about the blinking blue light?
Lindommer said:
Thanks for that. But what about the blinking blue light?
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That is paring mode if in not mistaken.
Nah, it's definitely a charging light. Doesn't blink when pairing but does when a USB charging lead is plugged in. Goes off after a couple of minutes, which confirms what we all know: the keyboard doesn't/won't charge.
Picked up one of these new from Ebay. It doesn't seem to want to charge and will only work when plugged in with charger. Anyway to get it working? Guess it's a return