I got an external battery I use for charging my phone on the go, but I hate dealing with the dongle. Was thinking since we have wireless charging, why not have an external battery with qi charging that just snaps on the back via magnet like the orb charger?
Googled and Googled but can't find anything
Sent from my Nexus 4 using Tapatalk 2
efficiency. As it stands, it's already inefficient to use one battery to charge another. If you were to implement inductive charging on top of that, you could very well end up with a 3000mah battery supplying a mere 1000mah.
I've been playing around with the idea of a battery belt + inductive charging holster. But the belt would end up being far too bulky (and expensive), and holsters are out of fashion now. All for not too much extra charge. The original idea was to be able to go a week of heavy usage on the battery belt. Businessman's dream..?
A powerskin (like the ones xpal makes) would make more sense IMO. Nothing out right now I don't think but I'm sure one is coming shortly.
This is from a thread I made on reddit, but I thought it would apply here:
What's your favorite battery pack with attached microUSB cable?
Everyone here knows exactly why we all need something like this.
Taking it one step further, I have a Nexus 4 which has 4 magnets in the back of its case (used presumably for the upcoming wireless charging orb, a la also-Matias-Duarte-designed Palm Pre + Touchstone), and I was fiddling around with the idea of gluing 4 magnets on top of the external battery back. That way, if I get one that's roughly the same size as my phone, it'd be easy to carry & use them together without awkwardly holding them with a lot of pressure. Similarily, I could see that idea working well with my girlfriend's Nexus 4 and a battery pack in her purse. So, thoughts on a magnet on top of a battery pack. Is this a bad idea?
Main question is still, "What's your favorite battery pack with attached microUSB cable?" though. Thanks!
Click to expand...
Click to collapse
Yeah same thoughts. I'm using an anker slim talk power bank, got it for my vivid in June, and it's not the most ideal solution with charging and using at the same time. A bit awkward to hold both at the same time, and the dongle is on the side so it doesn't match up with the micro usb on the nexus very well. A wireless one the same shape of the phone with magnets would rock
Sent from my Nexus 4 using Tapatalk 2
Related
I like a lot of people use my phone very heavily yet I don't have an opportunity to plug my phone into an AC charger until I return home. A great remedy to the problem is this handly little AA charger.
http://www.igo.com/accessories/powerxtender-charger/invt/ps002640004/
The reason I like it so much is because cheap portable battery packs usually pack under 1000mah of power. Thats not even enough to give you 1 full charge. And the more expensive 2000mah+ packs are often on the large side and well... expensive lol. On the other hand this little bugger is cheap and small enough to sit in my pocket without being a bother. What I find is the best part of it is the fact that you can choose what kind of AA batteries you put into it. I opted for Energizer rechargeable which are rated at 2450mah EACH for a total of 4900mah of power. Thats the equivalent of 3 G2x batteries. Keep 2 more batteries in your backpack/desk/purse thats an additional 4900mah. If that can't get you through the day you have more than just phone issues
Originally bought it for my Vibrant but quickly found it was awkward because the the product doesnt come with a cable adapter. This meant it was hanging and putting much strain on the usb port of the phone. Out of fear of breaking it I stopped using it. However since the G2x charges from the bottom there is absolutely no problem espcially seeing as I bought a 20cm micro usb extension cable so that the charger can sit in my lap or on a table while using the phone.
Just thought I'd share this since we can't get legit replacement batteries yet and even when they do become available they will cost a pretty penny. Got mine from Staples but they can be had on amazon also along with the usb extension able and rechargeable batteries.
This one works very well, too:
Well I'm a new member, so not allowed to post outside link. Therefore goto
Amazon
Duracell Instant USB Charger with Lithium ion battery
Pick the very first one
You don't need to by batteries or an extra charger. You can recharge it via your G2x power supply or any computer.
This was my favorite (coming from g1)
Too bad theres no new version for the micro usb's now..
http://www.amazon.com/Motorola-9878...?s=electronics&ie=UTF8&qid=1304363010&sr=1-16
This can be added on, though it wouldn't be very convenient since its a slide in/out connector
http://www.amazon.com/Motorola-Mini-USB-Micro-USB-Charger-Adapter/dp/B0018L4GOQ/ref=pd_sim_cps_1
hire4blood said:
This one works very well, too:
Well I'm a new member, so not allowed to post outside link. Therefore goto
Amazon
Duracell Instant USB Charger with Lithium ion battery
Pick the very first one
You don't need to by batteries or an extra charger. You can recharge it via your G2x power supply or any computer.
Click to expand...
Click to collapse
I almost bought one of those until I saw how low the capacity on it is. Looks tiny though which is nice.
J&R has Veho 5Ah external battery for $35 and I have 2 of them.
Just use regular microUSB cable to charge the phone and leave the original cable secure.
I'm thinking about getting the i-up 13,200mAh pack.
regP said:
I almost bought one of those until I saw how low the capacity on it is. Looks tiny though which is nice.
Click to expand...
Click to collapse
They have a bigger version for 32$ as well. The 22$ version gives me a full charge from around 30%.
Just received my Pebble XT 5000mah pack. Won't be able to put it through its paces till next tuesday. Upon first impression, i think im in love with this thing already. its small enough to sit in pocket without having much presence. extremely lightweight. and the cord is long enough to be able to have the charger in your pocket and phone in hand (thank you lg for putting the usb port at the bottom). All info I have read indicated that it really does output 5000mAh of power so even a heavy user such as myself will have no problem getting through a full day of use.
Just wondering how everyone's batterys are working out for them?
Also how many full charges did you get?
Also any likes or dislikes of product they decided to buy?
Sent from my LG-P999 using XDA Premium App
Just wanting a update???
Sent from my LG-P999 using XDA Premium App
That looks like something that might be good out camping or something where you needed to charge your phone without touching it. But I would figure actually picking it up and putting that much weight on he usb port a very bad idea... This should come with a extension cord to charge while using, even texting or something would be pretty difficult to hold both...
motorola p793
Check this site for power packs, all kinds 5000mah for around $20
http://www.tvc-mall.com/details/660...r-Cell-Phone-Tablet-PC-PSP-etc-IPHONE-4-7095/
Micro usb 1900mah
http://www.tvc-mall.com/details/Por...AZR2-V8-HTC-BlackBerry-and-etc-Black-MCH-615/
ImaxPower IMP500 (5000mAh) External Battery
I've used an IMP500 Rechargeable (5000mAh) external battery pack for a few years with great sucess. They make them as large as 11000mAh (or more?) and even have solar-rechargeable options. Just take a look at New Trent or other similar products on Amazon or eBay.
The best part about the IMP series is that they have multiple adapters for iPhones, mini/micro USB, PSP, DS, and other devices so you can charge your phone and anything else you might be carrying around with you.
Link to NewTrent for info on models
I'd recommend buying elsewhere because you can find them for 30-50%+ off.
Is anyone else itching to get wireless charging more readily available? I'd love to see this integrated into car-docks so you don't have to plug the phone in to charge it while using GPS or to get chargers sewn into pants pockets.... It'd be a pain carrying around another battery pack but siphoning off from a secondary battery while the phone is in your pocket would be amazing for people who spend a lot of time away from a desk like myself.
Or how about a wireless charging holster for the phone like all the blackberry ones that have magnets in them... make it a little thicker, add a Qi charging pad and an auxiliary battery and there you go, on the go secondary battery pack.
Charging anything in your pocket has got to be bad for your kibbles and bits.
But I would like a qi car dock.
Sent from my Nexus 4 using Tapatalk 2
We just need to wait for Google to release it's ****...whenever that is.
I'm curious if anyone has purchased any kind of wireless charging unit for their Galaxy S 4. I think they are a neat idea but haven't tried one yet.
If so, can you recommend the brand you prefer and perhaps a link to it?
I'm curious to know if it charges at a manageable rate and is it efficient?
I have considered coughing up some good money on a couple of them if they work but don't want to go in blindly and haven't seen many reviews on them.
http://www.amazon.com/Samsung-Galaxy-Wireless-Charger-inductive/dp/B00CRWKNME
Some of them like this seem to maybe be worth it.
They are slow chargers.
I've read something about it here.
There are options out there. A lot cheaper.
Search this specific forum and you'll find the info.
Sent from my GT-I9505 using xda app-developers app
I personally use my Zen wireless pads (mainly cause I've had them for a while) and just bought a wireless Insert from mobile fun. Works great. Yes its a slowish charge but can full charge over night while sleep np.
Sent from my GT-I9505 using XDA Premium 4 mobile app
Charges at a rate about 1/3 the rate of the 2A charger (650mA). But it charges over night no problem. It's more economical to buy the insert and then buy a charging pad. Inserts usually run ~$20, with chargers running $30ish.
xreflection said:
Charges at a rate about 1/3 the rate of the 2A charger (650mA). But it charges over night no problem. It's more economical to buy the insert and then buy a charging pad. Inserts usually run ~$20, with chargers running $30ish.
Click to expand...
Click to collapse
Swanseatom said:
I personally use my Zen wireless pads (mainly cause I've had them for a while) and just bought a wireless Insert from mobile fun. Works great. Yes its a slowish charge but can full charge over night while sleep np.
Sent from my GT-I9505 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Yeah, that's the kind of info i'm looking for. I am interested in this because when I'm at work [I work for long periods of time] I'd like this to keep it charged. I often will pick my phone up to answer a text, or shoot an email or small things like check the weather quickly, or change my song on Spotify and then i'd like to set it back down to continue to charge.
I won't be using it for a regular charger, per se.
I'll just have to look into buying the insert and pad, seemingly cheaper than the options I was recommended previously.
I thought about this too, but read that they can heat up the phones charging this way and sometimes won't stop charging when full?
yes i have a insert receiver i paid £8 plus £17 for base on flea bay and it works perfectly ,i leave it on over night it charges 100% ,no heat or beeps.i am looking for a pad for my car now.
Some base stations aren't as good as others and will cause the device to heat up. Technically, they all cause the device to heat up but so does plugging it in.
I have three different base stations. The Samsung base, one from ebay(has a qi logo on it) and one from aliexpress(just has a wifi logo on it, and claims 1000 or 1500 output). The ebay one works very well, but makes an annoying loud beep when the phone is placed on it. The aliexpress base works allright but does cause the phone to heat up more than the other base stations.
The samsung base works fine, no annoying beep. But...it didn't come with a power cable so you have to use the cable that came with your phone to plug it up (in fact, it recommends a 2A charger for it). The other two both came with their own power cables.
I've not done tests to see what rates each of the base stations charge at but there's no noticeable difference.
Unfortunately, none of the wireless charging items I purchased have links to them anymore and I can't find comparable items. I wish I could just provide you with the companies I used that gave me the best results, but I just can't track them down.
kudosmog said:
Some base stations aren't as good as others and will cause the device to heat up. Technically, they all cause the device to heat up but so does plugging it in.
I have three different base stations. The Samsung base, one from ebay(has a qi logo on it) and one from aliexpress(just has a wifi logo on it, and claims 1000 or 1500 output). The ebay one works very well, but makes an annoying loud beep when the phone is placed on it. The aliexpress base works allright but does cause the phone to heat up more than the other base stations.
The samsung base works fine, no annoying beep. But...it didn't come with a power cable so you have to use the cable that came with your phone to plug it up (in fact, it recommends a 2A charger for it). The other two both came with their own power cables.
I've not done tests to see what rates each of the base stations charge at but there's no noticeable difference.
Unfortunately, none of the wireless charging items I purchased have links to them anymore and I can't find comparable items. I wish I could just provide you with the companies I used that gave me the best results, but I just can't track them down.
Click to expand...
Click to collapse
If you are willing to do a little tweaking with the ebay one, you can rip off the top cover and cut off the speaker that makes the beep. I did that with mine and it stopped the beeping.
Is there not a kernel to increase the charging current on the wireless pads? There was for note 2 (neak kernel)?
I know that everyone is writing Powermat off as a failure but I just got an aftermarket insert for the S4 from a seller on Amazon - the reason why I chose Powermat is because I can use it in Starbucks and McDonald's - no real point in having wireless charging at home anyway. Can't do links but I guess if you search for 'pma thin receiver galaxy s4' you'll find it.
Sorry to bump such an old-ish thread, but I just got a QI patch for my S4, had it on my S3 and loved it. Works great and no issues whatsoever. Gets a tad bit hot but that's pretty much it. It charges at a decent rate.
I just picked up an S4 a few days ago that came with the wireless charging back. I am using a fatboy charging pillow that has the Nokia DT-900 plate in it that I got last year with my DNA. I've used several of the charging plates and they all work well and charge around 1A. What inserts is everyone talking about? What I have is the replacement back cover that includes the qi coil. It's slightly thicker and my issue has been finding a case that fits well over it. Does anyone have any recommendations?
Sent from my SCH-I545 using XDA Premium 4 mobile app
The case I have on my phone fits perfectly. Its uhm, a bumper kind of case, I'll try to take some pictures to show you.
Sent from my SGH-M919 using Tapatalk 4
I had been using the Nokia wireless transmitter before with my Note2. Just went on Amazon and ordered a $13 receiver and a UAG case. All works perfectly. Slight bulge on the battery cover but not noticeable with the UAG case on it. There is a slight weight difference but you have to expect that because the receiver is a copper coil.
Charging is slower than USB but perfect for night time recharging. =)
Sent from my SAMSUNG-SGH-I337 using Tapatalk 4
I'm using the official Samsung qi charger, a bit slow, but real convenient, love it, the battery door is a bit thicker so it won't fit my cases... Besides that all good!
Sent from my Nexus 4
wireless charger
FourPointedFreak said:
I'm curious if anyone has purchased any kind of wireless charging unit for their Galaxy S 4. I think they are a neat idea but haven't tried one yet.
If so, can you recommend the brand you prefer and perhaps a link to it?
I'm curious to know if it charges at a manageable rate and is it efficient?
I have considered coughing up some good money on a couple of them if they work but don't want to go in blindly and haven't seen many reviews on them.
http://www.amazon.com/Samsung-Galaxy-Wireless-Charger-inductive/dp/B00CRWKNME
Some of them like this seem to maybe be worth it.
Click to expand...
Click to collapse
I have this one but with the pad i want to get the puck one.It works great for me.I even bought one for my boss and she loves it.
http://vivealive.net/WiQiQi-Samsung-S4-Wireless-Receiver-and-Curve-Charger-Set-Black-WQS4CB.htm
xreflection said:
Charges at a rate about 1/3 the rate of the 2A charger (650mA). But it charges over night no problem. It's more economical to buy the insert and then buy a charging pad. Inserts usually run ~$20, with chargers running $30ish.
Click to expand...
Click to collapse
I guess you're talking about the official Samsung Qi transmitter. My experience with the LG WCP-300 is similar. I tested the S4 with the official Samsung receiver back and got 640mA current input with 4 different power supplies (2.1, 1.8, 1.2, & 1 amp).
Sent from my Nexus 10 using xda app-developers app
gnik luap said:
I guess you're talking about the official Samsung Qi transmitter. My experience with the LG WCP-300 is similar. I tested the S4 with the official Samsung receiver back and got 640mA current input with 4 different power supplies (2.1, 1.8, 1.2, & 1 amp).
Sent from my Nexus 10 using xda app-developers app
Click to expand...
Click to collapse
Nope, none of the things I'm using at OEM. All after market. I think I mistyped and meant to say 640mA.
Ferradinho said:
What inserts is everyone talking about? What I have is the replacement back cover that includes the qi coil. It's slightly thicker and my issue has been finding a case that fits well over it. Does anyone have any recommendations?
Sent from my SCH-I545 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I just noticed you didn't get an answer yet. The inserts are three Qi receivers that look like thin patches of plastic with very thin copper wires in them. There are many on eBay & Amazon, but really they all look much the same. Prices seem to run from around $12 to just under $30. Some are known to interfere with the NFC function. All seem to create a slight bulge when you place them against the battery contacts and put the back cover on. Some listings give the thickness in millimeters.
Typical:
http://www.amazon.com/GMYLE-Standar...id=1378662447&sr=8-15&keywords=s4+qi+receiver
I don't know about real cases, but I got a bumper for $6.50 that I like:
http://www.amazon.com/gp/product/B00BWZJOB8/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1
The only apparent flaw is that the charging back cover is barely recessed into the bumper. No scratches yet, but I'll keep my fingers crossed.
Sent from my Nexus 10 using xda app-developers app
---------- Post added at 02:38 PM ---------- Previous post was at 02:08 PM ----------
big samm said:
I'm using the official Samsung qi charger, a bit slow, but real convenient, love it, the battery door is a bit thicker so it won't fit my cases... Besides that all good!
Sent from my Nexus 4
Click to expand...
Click to collapse
I'm curious about the amount of power the phone actually receives using the OEM charging back with the OEM Charin pad. Would you mind checking that & posting it here, please? You can use the free app Current Widget from the Play Store, and it'll help me decide between the OEM pad and a generic.
Sent from my Nexus 10 using xda app-developers app
Hi all, so I've got an S4 and the battery just doesn't do it for me as I'm quite a power user. So I've been looking into various methods of keeping my phone's battery topped up, especially on the go, I've had a look at portable chargers, external battery cases (as I had one on my S3 and it worked great, for about a week and then gave up) and extended batteries.
Now what I'm looking for is ideally something that isn't too bulky, has decent quality and provides a good solid charge to my phone. I also have a bunch of other phones that I want to keep charged, so an external battery case or extended batteries are looking a little weak here as a portable charger would do the trick for all of them, but then again they often seem to be quite bulky.
So my question to you is what would you advice? Ideally I'd like a solution that fits in the pocket and still keeps my phone topped, what would you recommend and have you bought something to satisfy this need yourself? I'm not really looking into extended batteries that add a whole lot of bulk, I'm hearing good things about Anker batteries and these 3,000mAh Zerolemon standard size batteries, but there seem to be so many variations of portable chargers I'm not quite sure what to do. Any help would be greatly appreciated!
TheKeyboardWarrior said:
Hi all, so I've got an S4 and the battery just doesn't do it for me as I'm quite a power user. So I've been looking into various methods of keeping my phone's battery topped up, especially on the go, I've had a look at portable chargers, external battery cases (as I had one on my S3 and it worked great, for about a week and then gave up) and extended batteries.
Now what I'm looking for is ideally something that isn't too bulky, has decent quality and provides a good solid charge to my phone. I also have a bunch of other phones that I want to keep charged, so an external battery case or extended batteries are looking a little weak here as a portable charger would do the trick for all of them, but then again they often seem to be quite bulky.
So my question to you is what would you advice? Ideally I'd like a solution that fits in the pocket and still keeps my phone topped, what would you recommend and have you bought something to satisfy this need yourself? I'm not really looking into extended batteries that add a whole lot of bulk, I'm hearing good things about Anker batteries and these 3,000mAh Zerolemon standard size batteries, but there seem to be so many variations of portable chargers I'm not quite sure what to do. Any help would be greatly appreciated!
Click to expand...
Click to collapse
I have the Zerolemon battery, it works well, but really, I couldn't tell much of a difference in battery life, and keep in mind, NFC is not included if you go with the Zerolemon.
Go to amazon and do a search for "android portable battery charger" there are a lot of options from small lipstick sized charges to big bulky ones, read the reviews and pick one that works best for you. Personally I am usually close to a charger so I have not found the need to get one yet, but I can see how it would be necessary for those that are frequently away from a wall outlet or car for extended periods. I might pick one up before my camping/float trip coming up this summer. If I did, it would probably be this one. http://www.amazon.com/KMAX-806-Flas...8-5&keywords=android+portable+battery+charger
I have an old external charger that came with a 3 panel solar folder. I used it a few times when camping and I could charge it all day and then use it to charge the phone twice. That was with an older 1900mah batter in the phone
Just a quick update, I eventually decided to settle with this EasyAcc iChoc 5,000mAh portable charger. I've had it for a few days now and it works fantastic, the build quality feels nice in the hand and the dimensions are the same as my S4 (and just as slim mind) it comes with two outputs, a 1A and a 2.1A one (using your own microUSB cable) and the 1A output has a built in microUSB cable. Very pleased with the purchase, it was around £17 on Amazon Prime:
http://www.amazon.co.uk/EasyAcc®-iC...&qid=1397737540&sr=8-1&keywords=ichoc+easyacc
Bear in mind I don't think the actual capacity is anywhere near 5,000 mAh however.
Charges S4 about 1.3 times.... So it's about a 3000mAh
Sent from my SPH-L720 using Tapatalk
z50king said:
Charges S4 about 1.3 times.... So it's about a 3000mAh
Sent from my SPH-L720 using Tapatalk
Click to expand...
Click to collapse
Are you referring to the EasyAcc portable battery that I posted?
While I think you have made your choice .... I have used the callpod dou charger.... I had 10 of them until I started giving them away cause they were of no use with the phone I had before I got my S4. I have (5) Isound 16,000's 16,000 mah. That will keep my S4 or my wife's Iphone 5 up for about a day of intermittent use.... she can kill one in about 8hrs if she is on her phone and charging her Ipad at the same time. I also have (3) of the power bank 33,000s . 33,000 mah. I am not sure that I have ever killed this battery with my S4 alone. My wife can kill it with her iphone in 2-3 evenings of fairly constant use.... talking on the phone and playing games and I think charging both her iphone and ipad... (flipping back and forth between the 2. This battery will also charge most laptops. Her Macbook will get one full charge out of it.... if the computer is not on. With the computer on it last about 30-40 mins. My Htc Flyer has been on a 33,000 all week with off and on use and is still half full. Finally , I have a hyperjuice 150wh and a 222wh. The wife has been charging her iphone on the 150 and her ipad on the 222 all week and they are still around half full.
I finally got myself the Anker 5200 mAh battery. Does anyone know an app that shows the correct battery capacity? I got the sneaking suspicion that it isn't detected properly...
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
Click to expand...
Click to collapse
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!
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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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Click to collapse
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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Click to collapse
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