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Bought a cracked screen N7 to mess around with adding internal storage so as not to bork up mine or my wife's. When the parts N7 turned out to be 16gb I just swapped mainboards into mine and called it a day - 8gb was too little storage, but 16 is enough.
So I have this spare n7 battery now, and a bunch of spare cases from when I was trying to settle on one (poetic slimline final rev won out)
One of the cases had plenty of padding in the back, and after pulling out a bunch an N7 battery fits perfectly.
My question is how to wire it properly - the n7 batt has a 6 wire plug, black, black, yellow, white, red, red.
Obv. the red's are +v and the blacks are grounds, multimeter confirmed. Yellow and white must be for batt regulator logic?
I know enough about li-ion to know that you don't want to charge them unregulated (explosion), but there is a circuitboard srinkwrapped inside the battery that I can only imagine is a regulator.
It couldn't be as simple as soldering a male microusb plug to the +v red and ground black wires (plug into N7 for batt boost) and a DIY female microusb to male usb to charge the batt off the n7 wall wart, could it? Would the yellow and white wires have to be shorted?
At 4170mah it's not a giant battery compared to some aftermarket ones, but the one aftermarket external batt I own, a RavPower 5200mah, doesn't seem to charge the n7 (works w/ my Gnex). But maybe an actual n7 battery would have better luck.
It wouldn't be used often, just on trips, in a dedicated case.
The Li-Polymer Battery pack in the N7 consists of 2 cells, individually wired. They have a nominal voltage of 3,7 volts each - Going from 4,2V full to about 3,2V empty. You need a step-up converter to convert this to USB voltage (5V). Look at the Adafruit Mintyboost, this can do it for you.
The battery pack contains rudimentary safety electronics, no regulator of any kind.
// Per.
zapro said:
You need a step-up converter to convert this to USB voltage (5V). Look at the Adafruit Mintyboost, this can do it for you.
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Click to collapse
Actually have a sparkfun 5v step up breakout, left over from the n7 internal storage effort, but that wouldn't handle the battery operation.
zapro said:
The battery pack contains rudimentary safety electronics, no regulator of any kind.
// Per.
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Click to collapse
The board you link to looks like it's another form of step-up to me, in that it seems to just use a couple AA batteries to work as an external charger. Does't seem to be any indication that it regulates charging, it only says that rechargeable batteries are acceptable to use (AA rechargeable)
This board seems more like the ticket - if I sub in a micousb plug on the break out board, then I wouldn't even necessarily have to put the pcb in the n7 case - just hook it to the board when charging the spare batt. Out of stock though :/
Great info btw Zapro....
Oh, i thought you only needed a way to use the battery, not charge it (it sounded like you've had that covered)...
In that case, the Lithium-Polymer charging circuit put together with a step-up should do the job nicely.
Look on eBay, i know that you can get a board that does both. Alternatively, make your own board.
// Per.
Not sure if it will be any good but I have ordered on to see
http://www.ebay.com/itm/USB-Type-C-...986680?hash=item4d44193db8:g:g2UAAOSwt7pXNIHp
There only seems to be one type ATM
and it supposedly charges at DC 5V/1000mA (depending obviously on the transmitting charger)
It's available from Amazon as well but they all link back to China
Early days, here's hoping I don't blow up my 5X
Yes it blocks the USB port but I always SMB stuff from my nas box so that's not a problem.
You're lucky if you ever get even 500mA out of it. Every Chinese Qi pad vendor overstates the power on their product. Still, nice to have the option. Let us know how it goes
Sent from my Nexus 5X using XDA-Developers mobile app
Iiinteresting, ordered one of those through Amazon. Even if it's only 500mA it'll be nice to have, I just hope it doesn't mess with NFC stuff. Looks like it shouldn't given that the antenna for that is near the camera according to the manual.
colorado_al said:
You're lucky if you ever get even 500mA out of it. Every Chinese Qi pad vendor overstates the power on their product. Still, nice to have the option. Let us know how it goes
Sent from my Nexus 5X using XDA-Developers mobile app
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Click to collapse
The receiver coil looks bigger than the ones I've seen before so maybe 1 amp is a possibility, i'll let report when it eventually gets here.
Quick review
Got the pad now and here is my initial review
Clearly the photo on the advert is a bit of a lie as the coil is about half the size as you can see in the photo below.
The pad is situated to far too the top on the Nexus 5X and sticks out where the fingerprint reader is. This can be easily fixed by cutting a bit off the top, as the coil does not come right to the edge this can be done without ruining the receiver.
THe bit that plugs into the USB socket sticks out which is a bit annoying but not the end of the world.
On my Zens dual Qi charger it took just less than 4 hours to charge from 36% to full so it's not super fast but not that bad over night. The phone indicated slow charging and was AC charging by the battery usage page.
It seems to have no problem staying connected as long as you are aware where the coil is on the pad (towards the top) and has no problem charging through my case
It does not appear to interfere with the radio antenna at all so thats ok.
Also it's super slim so should not interfere with most cases
So in conclusion its fine for me as I rarely need to charge the phone except for overnight, and I have not been using the faster charger anyway.
In case anyone is wondering the case is a Nillkin Matte Super Shield Hard Shell Case which is super nice though the black was a mistake
bexwhitt said:
Got the pad now and here is my initial review
<snipped huge quote>
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Nice, thanks for the update. I'm still waiting on mine, it'll be nice to have wireless charging again.
edit: I did get mine today... it's a bit flaky at best, currently i'm blaming the qi charger, i've got a different one on the way.
Good to know it fits under a Nillkin case, as that's what I have for my Nexus 6P. I ordered a receiver on the 25th, hope I get it soon.
Fnord12 said:
edit: I did get mine today... it's a bit flaky at best, currently i'm blaming the qi charger, i've got a different one on the way.
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The charging on mine seems rock solid but the zens dual does have a pretty big target area to put the coil in.
See the screenshot below the charge looks pretty rock solid
bexwhitt said:
The charging on mine seems rock solid but the zens dual does have a pretty big target area to put the coil in.
See the screenshot below the charge looks pretty rock solid
Click to expand...
Click to collapse
While fiddling with it the qi pad I have it only really works when the thing is outside my case in one exact spot. So... given that it worked fine for someone else I went hunting on Amazon and found a better looking unit.
We'll see Saturday when it gets here if I chose the right one.
Woot, got a full charge overnight with the new qi pad so that old pad is basically crap.
How thick is the pad? I'm wondering if it would be possible to remove as many unnecessary part from it and try to fit it under the back cover of the phone. And also solder it directly to the charging board so that the USB would be still usable
AABatteries said:
How thick is the pad? I'm wondering if it would be possible to remove as many unnecessary part from it and try to fit it under the back cover of the phone. And also solder it directly to the charging board so that the USB would be still usable
Click to expand...
Click to collapse
it's not very thick at all and any generic Qi receiver would probably do as a few people already have.
https://www.youtube.com/watch?v=WimH8g-H2lE
There is padding over the battery on the back case you can remove if it's too thick
Has anyone else been having problems with theirs?
For a couple days now it's charged to full and then the next morning it'll be less than 100%. Yesterday it was at 89%, today it was at 93%. I did verify it was at 100% yesterday before I went to bed.
Fnord12 said:
Has anyone else been having problems with theirs?
For a couple days now it's charged to full and then the next morning it'll be less than 100%. Yesterday it was at 89%, today it was at 93%. I did verify it was at 100% yesterday before I went to bed.
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Click to collapse
I don't have one of these, but I might have a possible explanation. I used to use a 0.7 amp or 1.0 amp charger for charging the 5X overnight. Seemed to work at first, but then it started showing less than 100% in the morning. What seemed to happen from the battery graph is it would charge to full, then start draining (slowly) and not top up again. So I think the low power just didn't trigger it to start charging again once the battery drained a little.
I put it on a 2 amp charger and it now is 100% in the morning. If your phone acts like mine, it might be due to the lower power from wireless charging.
Voicebox said:
I don't have one of these, but I might have a possible explanation. I used to use a 0.7 amp or 1.0 amp charger for charging the 5X overnight. Seemed to work at first, but then it started showing less than 100% in the morning. What seemed to happen from the battery graph is it would charge to full, then start draining (slowly) and not top up again. So I think the low power just didn't trigger it to start charging again once the battery drained a little.
I put it on a 2 amp charger and it now is 100% in the morning. If your phone acts like mine, it might be due to the lower power from wireless charging.
Click to expand...
Click to collapse
Yeah.. I was kinda thinking that a little, good to see it confirmed. Not sure how much the pad was getting but the sending unit was only drawing ~1A so that's the issue there...
Oh well, it was a nice experiment, would have been better had it actually worked though. Back to the included charger it is then.
Just a note from years of experience with these Qi chargers:
There's some inherent loss in efficiency. Essentially, your wall charger is working to spin current around in a coil, which then by magnetic induction causes current to spin around another coil (in your phone), that then feeds into the battery. It's indirect, there's no contact, and some phone materials can even impede it (just one reason these stupid metal wannabe-iphones luddites keep demanding are a terrible idea ).
Bottom line is - you need a charger that's over an amp, closer to 2a if possible, to spin some of these Qi chargers up enough that it makes a large enough field to get to the Qi coil in your phone and charge it efficiently. Ones that come with tablets seem to work fine - I have my Nexus 7 charger on my office Qi (which is angled and serves dual duty of holding my phone for easy reading and viewing).
I'm actually more interested personally in an internal Qi option - solder it in, invisible.
True story - I did that with my S3 before I got an S5, and it worked great. Didn't have to bother when I got an S5, since they sold an optional Qi battery door for the S5. ...don't get me started on my hatred of the design philosophy that excludes removable battery doors.
Anyway - I just picked up a 5x, reluctantly ditching many of the features I had on my S5, to try Google Fi service out.
Wireless charging is something that I'm very interested in - I have wireless chargers literally installed (meaning: hidden, routed wires) in my car, office, and house, specifically to avoid that dorm-room spaghetti-everywhere aesthetic. "Wireless... it's not just for convenience anymore."
Hopefully there's a thread with step by step instructions on a good Qi pad and identified soldering points to install internally?
geolemon said:
Just a note from years of experience with these Qi chargers:
There's some inherent loss in efficiency. Essentially, your wall charger is working to spin current around in a coil, which then by magnetic induction causes current to spin around another coil (in your phone), that then feeds into the battery. It's indirect, there's no contact, and some phone materials can even impede it (just one reason these stupid metal wannabe-iphones luddites keep demanding are a terrible idea ).
Bottom line is - you need a charger that's over an amp, closer to 2a if possible, to spin some of these Qi chargers up enough that it makes a large enough field to get to the Qi coil in your phone and charge it efficiently. Ones that come with tablets seem to work fine - I have my Nexus 7 charger on my office Qi (which is angled and serves dual duty of holding my phone for easy reading and viewing).
I'm actually more interested personally in an internal Qi option - solder it in, invisible.
True story - I did that with my S3 before I got an S5, and it worked great. Didn't have to bother when I got an S5, since they sold an optional Qi battery door for the S5. ...don't get me started on my hatred of the design philosophy that excludes removable battery doors.
Anyway - I just picked up a 5x, reluctantly ditching many of the features I had on my S5, to try Google Fi service out.
Wireless charging is something that I'm very interested in - I have wireless chargers literally installed (meaning: hidden, routed wires) in my car, office, and house, specifically to avoid that dorm-room spaghetti-everywhere aesthetic. "Wireless... it's not just for convenience anymore."
Hopefully there's a thread with step by step instructions on a good Qi pad and identified soldering points to install internally?
Click to expand...
Click to collapse
Such a thread exists. Someone also offers a service doing the soldering for you. I might be able to find it...
Here is the mod:
http://forum.xda-developers.com/showthread.php?t=3231461
EDIT: why did you mod your S3 when you could have dropped this in?
Sent from my SM-G930V using Tapatalk
That may exist today, but certainly didn't exist when the S3 was the current flagship phone.
Back in those years, the popular (and nearly 'only', here on XDA) modification was to buy the Palm Pre battery door and charger (non-Qi) and use those parts.
Since Palm had recently gone bust, $20 would get you all the parts you need - including Palm's proprietary charger base, a receiver sticker, even a charger.
And honestly, I have to say the Qi charger gets much hotter than the Palm system, so there might be an argument there for it being technically 'better than' the Qi systems. Qi is simply the standard today.
So now with the news that there are some accessories(chargers and cables) that are not compliant with the USB type C specifications, I wonder if these wireless pads are compliant with the specification?
Hi community!
I´m thinking about buying that QI induction addon that´s plugged into the usb c port.
My new car offers the feature.......
Has anyone made some eperience with it?
Is it worth?
Are there better or worse ones?
Make sure you buy one with a short enough cord that the coil does not obstruct the camera sensor. Obviously, you wouldn't be able to DASH charge with a Qi pad. Through personal experience, I have found that third-party Qi add-ons tend to be slower than charging with a USB cable on a 10W charger. These pads are thin, but not this enough to be negligible. If you have a tight-fitting case, it may cause a bulge in the back.
Don't do it. That's my recommendation. Especially if you can't plug the phone in anymore. You will leave it charging wirelessly for an hour to see like a 5% charge happen. It's the slowest for of charging like plugging it into your computer.
Slow, heats up the phone, the cable for the piggyback qi module breaks after twenty removals.
QI
I have this on my OP2, and i think it works very good. It is a bit hassle if you plug your phone into a computer alot, but i usually dont. I also have a Qi charger at work, so i can charge it during the day, witch leaves me with around 80 % when i go to sleep.
Anyone know of a longer cable available anywhere that will do dash charge? The included one is just too short.
There is a 150 cm version available on their website
Check that out
Well hell. Never noticed the were two options. That price though. But thanks!
tjg_marantz said:
Well hell. Never noticed the were two options. That price though. But thanks!
Click to expand...
Click to collapse
It's good quality, same red as the one in the box but it's a flat cable.
I went for the big boss bundle
But even 1.5m is pretty short. I have some circumstances -- mainly hotel rooms -- where a longer cord would be really helpful.
I recall reading that there is non-standard circuitry in the cable to alert the phone that it's a Dash charge, so a regular USB-C cable won't do Dash.
What I am wondering is whether a high-quality USB extension cable -- one cable of handling the amperage of Dash charging -- would solve the problem.
I have ordered one from A**zon and will report back when it arrives.
Still any news of a Dash-capable cable longer than 1.5M would be very welcome.
If anyone still want to have cheaper (but dash-charge capable) 1.5m cable, here is link from AliExpress:
http://s.aliexpress.com/mARzyIjY
I have had it since few months, it's working fine, it is flat, a LOT cheaper and longer than standard cable. Only disadvantage is that flat cable is a bit more hard, not so flexible. I don't even care if it's original or not if it's working fine with Dash Charge [emoji14]
Hbohd said:
If anyone still want to have cheaper (but dash-charge capable) 1.5m cable, here is link from AliExpress:
http://s.aliexpress.com/mARzyIjY
I have had it since few months, it's working fine, it is flat, a LOT cheaper and longer than standard cable. Only disadvantage is that flat cable is a bit more hard, not so flexible. I don't even care if it's original or not if it's working fine with Dash Charge [emoji14]
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Click to collapse
I have the same brought from Amazon and it was released at Oneplus 2 time, using as OTG
Hbohd said:
If anyone still want to have cheaper (but dash-charge capable) 1.5m cable, here is link from AliExpress:
http://s.aliexpress.com/mARzyIjY
I have had it since few months, it's working fine, it is flat, a LOT cheaper and longer than standard cable. Only disadvantage is that flat cable is a bit more hard, not so flexible. I don't even care if it's original or not if it's working fine with Dash Charge [emoji14]
Click to expand...
Click to collapse
Thanks mate! Just ordered mine..
Hbohd said:
If anyone still want to have cheaper (but dash-charge capable) 1.5m cable, here is link from AliExpress:
http://s.aliexpress.com/mARzyIjY
I have had it since few months, it's working fine, it is flat, a LOT cheaper and longer than standard cable. Only disadvantage is that flat cable is a bit more hard, not so flexible. I don't even care if it's original or not if it's working fine with Dash Charge [emoji14]
Click to expand...
Click to collapse
This cable is identical to the one I got from oneplus with the 5T big boss bundle. Nice find.
Solved ... using an extension
el56 said:
I recall reading that there is non-standard circuitry in the cable to alert the phone that it's a Dash charge, so a regular USB-C cable won't do Dash.
What I am wondering is whether a high-quality USB extension cable -- one cable of handling the amperage of Dash charging -- would solve the problem.
I have ordered one from A**zon and will report back when it arrives.
Click to expand...
Click to collapse
The result is a success .
The "A**zonBasics USB 3.0 Extension Cable - A-Male to A-Female", together with my original charging cable, is recognized by my 5T as a Dash charger even though the (combined extension and original) cable length is now 4 metres.
Now... It doesn't seem QUITE as fast as the Dash cable alone. Given the cable length and extra connection, that's not surprising. But it's still fast. And neither phone, cables nor charger are at all warm. while charging
Note: The extension cable is 22AWG and is marked on the connector ends as "SS" USB. It's thicker than the red OEM cable but that (I hope) assures that it can carry the extra amperage of the Dash charge.
Cost: $7
Comments are welcome. When able I will try to measure the comparative charging time with and without the extension.
Hbohd said:
If anyone still want to have cheaper (but dash-charge capable) 1.5m cable, here is link from AliExpress:
http://s.aliexpress.com/mARzyIjY
I have had it since few months, it's working fine, it is flat, a LOT cheaper and longer than standard cable. Only disadvantage is that flat cable is a bit more hard, not so flexible. I don't even care if it's original or not if it's working fine with Dash Charge [emoji14]
Click to expand...
Click to collapse
Thanks for this, the link is still active. I bought a few and both seem to work, usually at around 3000mah instead of 3300mah from the shorter original cable. Nothing has caught on fire yet
I'm using this at work, to extend the stock charging cable by another 3 feet. I get full dash charging with this and it's only 6 bucks. Def worth it.
https://www.amazon.com/gp/product/B017XUSKVK/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
https://imgur.com/a/hhlTgw8
I'm super happy with the results
I bought a more expensive wireless USB type C charger that I thought would charge faster, since it was advertised as a 2000 mah (On amazon, it was gold), but once you open it up it seems to be the same cheap 1000 mah ones.
I did this because my phone is getting old, and I cracked the back glass, and I figured, while I'm inside... I might as well do it.
I had a blast, and I'm super happy with the results, it charges slow, but it works! and I can keep using my wired charger!
Syndor said:
https://imgur.com/a/hhlTgw8
I'm super happy with the results
I bought a more expensive wireless USB type C charger that I thought would charge faster, since it was advertised as a 2000 mah (On amazon, it was gold), but once you open it up it seems to be the same cheap 1000 mah ones.
I did this because my phone is getting old, and I cracked the back glass, and I figured, while I'm inside... I might as well do it.
I had a blast, and I'm super happy with the results, it charges slow, but it works! and I can keep using my wired charger!
Click to expand...
Click to collapse
That's a pretty cool project! Care to elaborate on the steps and materials needed?
One pointer from my end: do not leave this charging overnight or when you're away from the device! Though customizations like this are fun and interesting, they are also a common source of house fires. Risks are probably low here as it involves slow charging but you really don't want to risk it.
Timmmmaaahh said:
That's a pretty cool project! Care to elaborate on the steps and materials needed?
One pointer from my end: do not leave this charging overnight or when you're away from the device! Though customizations like this are fun and interesting, they are also a common source of house fires. Risks are probably low here as it involves slow charging but you really don't want to risk it.
Click to expand...
Click to collapse
I'm making the small guide and I'll post it later
The bad thing is I couldn't really take many pictures, since the phone is what I used to do that, so I'll be using some footage from ifixit teardown video.
So this all began when my phones back crystal panel broke on a fall.
I decided I had to replace it, so I ordered a new Transparent one, since like Jerryrigeverything I love to be able to see the electronics.
While I was at it I figured, why not add wireless charging to the phone? It should be possible, so I looked around for a guide, and I found this one:
https://www.instructables.com/Add-Wireless-Charging-to-Any-Phone-Using-the-LG-V2/
That was way sloppier than what I wanted, but it was a good read, and you can read about what he did.
You will need, a multimeter to check for continuity
A soldering iron, one that can regulate heat so you don’t damage anything, and with the smallest tip you can find
A donor charging receiver
Time and patience.
After that
With help from ifixit (link: https://www.ifixit.com/Teardown/OnePlus+6T+Teardown/115698 )
I opened up the phone, and since ifixit said there was no fingerprint connector you can just go at it, heat, and separate.
Once inside, disconnect the battery first.
The OnePlus 6T has a different design, there’s no pcb for the usb c on the speaker area, it has a connector that goes up to the main pcb, that snaps right next to the battery, since they had to make room for the optic fingerprint scanner.
So I removed the battery, so I could strip the layer of safety glue and make a little more room by peeling away a couple of layers, otherwise this wouldn’t close.
I started probing around with my multimeter for continuity, to do this, I connected the usb type c wireless charge pad (this one: https://www.amazon.com/gp/product/B087TW7MGK/ref=ox_sc_saved_title_4?smid=AQB8EOE9WF3ZF&psc=1 ) after I stripped the protecting plastic cover (to make it even thinner, and to see the insides).
https://forum.xda-developers.com/attachment.php?attachmentid=5118635&d=1603036807
So you connect it and probe the +Vbus and the Ground on that pad, at first I was a bit baffled, since it had pins on both sides, why if it isn’t carrying data, then I realized how stupid I was being, of course, it’s because it’s usb type c, you can plug it in both ways, and it needs to have the correct pins either way.
So I managed to probe around for continuity, and found out these are the correct spots.
https://forum.xda-developers.com/attachment.php?attachmentid=5118637&d=1603036807
I had to remove some of the plastic on the NFC cover to allow the wires to pass, you can see on the final image the route the wires had to take.
https://forum.xda-developers.com/attachment.php?attachmentid=5118639&d=1603036807
As you can see, I also jumped both grounds since it wouldn’t work if I didn’t.
https://forum.xda-developers.com/attachment.php?attachmentid=5118633&d=1603036807
The first one is beefier, but it wouldn’t fit since everything on the PCB was bigger, the thing is, they charged at the same rate when tested with a usb type c power meter around 680-700 mah of charging power with a 10 watt wireless charger.
I ended up using this other one which was cheaper, and also smaller, not as sexy, but that’s the price to pay.
https://www.amazon.com/Version-Wire...48&sprefix=type+c+wireless+cha,aps,185&sr=8-3
so all that was left to do, was place a nice thin sticker on my battery (I miss the red battery days) to make it look a little bit better, and close it up with the transparent back cover (also from amazon).
As a side note, I placed a USB C to C power meter, and these little things do seem to have sensors for when the battery is full, so they don’t overcharge or overheat.
So I left it overnight with a 65 watt PD USB C to C charger, and a wall plug power meter, and once it’s soldered in, it also seems to drop down the charging, and it also stops giving out heat when it’s fully charged, so there might be something on the small PCB for charge detection, or maybe it’s the phones own full charge detection and it stops asking for power, since this would be the equivalent of being connected with a cable.
Still, everyone should operate at their own safety and I’m not responsible if you set your house on fire, but I will continue leaving it overnight.
It charges slowly, but I can also plug in my dash charger, and again, it doesn’t overheat, the PCB on the wireless coil receiver seems to be doing something, maybe.