Database Users

why no usb charger?

why? why did motorola use a proprietary charging cable? it would of been so nice to have a micro usb cable to charge the xoom. im very worried one day that needle proprietary cable going to break and it wont charge my xoom anymore.
it seems like motorola is a HUGE fan or proprietary cables, especially the v60 series flip phones.

fondoo said:
why? why did motorola use a proprietary charging cable? it would of been so nice to have a micro usb cable to charge the xoom. im very worried one day that needle proprietary cable going to break and it wont charge my xoom anymore.
it seems like motorola is a HUGE fan or proprietary cables, especially the v60 series flip phones.
Click to expand...
Click to collapse
All the latest tablets have proprietary cables...

fondoo said:
why? why did motorola use a proprietary charging cable? it would of been so nice to have a micro usb cable to charge the xoom. im very worried one day that needle proprietary cable going to break and it wont charge my xoom anymore.
it seems like motorola is a HUGE fan or proprietary cables, especially the v60 series flip phones.
Click to expand...
Click to collapse
Simple, many recent tablets use proprietary cables to allow higher current and faster charge times.
The average usb cable hooked up to your pc provides about 500mA
The proprietary cable for a modern tablet like the XOOM can deliver around
1.5A
With a micro USB cable it would take forever to charge the XOOM. Then people would be complaining about why the XOOM takes so incredibly long to charge, and bashing motorola for the problem. Instead Motorola chose to do it the intelligent way, by separating the charge function to a proprietary cable to allow very fast charging, and including the usb cable for data transfer.
When I see a proprietary cable I don't think - crap why do they do it this way. Instead I think wow great, that means this thing was designed for fast charges.

Digital Man said:
Simple, many recent tablets use proprietary cables to allow higher current and faster charge times.
The average usb cable hooked up to your pc provides about 500mA
The proprietary cable for a modern tablet like the XOOM can deliver around
1.5A
With a micro USB cable it would take forever to charge the XOOM. Then people would be complaining about why the XOOM takes so incredibly long to charge, and bashing motorola for the problem. Instead Motorola chose to do it the intelligent way, by separating the charge function to a proprietary cable to allow very fast charging, and including the usb cable for data transfer.
When I see a proprietary cable I don't think - crap why do they do it this way. Instead I think wow great, that means this thing was designed for fast charges.
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Click to collapse
THANK YOU lol finally someone that understands.....

plus, the input voltage in to the tab is 12v, hard to get 12v from a 5v USB supply...

For a bit more info, I too wondered about USB charging. The limit seems to be when the Xoom is running, the current drain can be upwards of 400 mA so I could see a situation where a USB charger at 500 mA would overload if you did too much on the Xoom during charging. That would be good enough reason to avoid that design mess. "Do not use during charging" would not be sufficent protection. The Moto Mains Charger manages 1500 mA for a couple of hours which is wonderful. Now if only I could charge my Nexus S that quickly

xtkxhom3r said:
THANK YOU lol finally someone that understands.....
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Click to collapse
right? about time

I am really glad that trickle charging is not possible with the Xoom, saves a lot of problems...I just wish they had used a different connector for the power. Something a bit more durable and commonly included in third party multichargers would have been nice...but one can't have everything.
I still support the seperate power cable choice for all kinds of reasons.
Sent from my GT-I9000 using XDA Premium App

Just amazes me that folks will complain about anything and everything. Good grief, it charges in no time and runs more than a day when it does. What more can you expect?

I like the idea of a separate charger, but the only thing I take issue with is the design of the charger it self. Luckily, I just set mine on the dock before bed. The dock doesn't use that flimsy pin, it uses the two gold plates at the bottom to charge.

Kcarpenter said:
I like the idea of a separate charger, but the only thing I take issue with is the design of the charger it self. Luckily, I just set mine on the dock before bed. The dock doesn't use that flimsy pin, it uses the two gold plates at the bottom to charge.
Click to expand...
Click to collapse
going to have to look into that dock cause i'm not to fond of the charger that it has. so the avg. use time is about a day, are you guys mod or heavy users(as you can tell i dont have mine yet ordered and waiting for it to show up)trying to get as much real world use info as i can

i love the proprietary cable. It is SOOO much faster. My Galaxy tab with a 4000 mAH battery took almost 4 hours to charge and i was lucky to get two days usage out of it (standby time and normal usage combined). My Xoom (no idea on mAH size) charges in 2 hours and i get 90 hours usage out of it (mainly standby but still a lot of screen on time, wiht a much larger and brighter screen to power). LOVE it.

Yeah I wouldn't worry about the Cable its seems durable, only thing I AM worried about was how you plug the wires all on the side of the device, I feel like there's abit of give on the wires when holding it sideways, I wish it was more like the iPad.

You know the first time I saw that the tablets used a seperate charging cable I was like, "why?" but then I stopped and think, there's no why a USB (let alone a micro-USB) can charge those suckers, so I'm personally glade that tablet makers did what they did and make it seperate.

I just wish they chose a 30-pin connector instead of this tiny one. The slightest mistake while it's charging (like say you trip over the cord), and there goes your xoom for repair/replacement.

Lets not rule out USB charging. Yes, I love going from 5% to 100% in about an hour. But I also have USB plugged in for hours on end when doing my thang. . That being said, we do not know for certain that USB charge is a hardware limitation. Yes, USB puts out 500mV. But I can tell the kernel to suck in whatever. If the hardware is capable, its doable.

I still think the option should have been given to us. Cuz many if not all of us have micro USB around. I for one only take a single micro USB in my pocket for my phone. So its would have Been nice to be able to charge both device with one charger. But I mean scull charge usually carry me all day. So I don't see it as a major problem right now.
Sent from my Xoom using XDA Premium App

bigrushdog said:
Lets not rule out USB charging. Yes, I love going from 5% to 100% in about an hour. But I also have USB plugged in for hours on end when doing my thang. . That being said, we do not know for certain that USB charge is a hardware limitation. Yes, USB puts out 500mV. But I can tell the kernel to suck in whatever. If the hardware is capable, its doable.
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e
Its actually 500mA not 500mV. Usb provides 5 volts at 500ma for usb 2.0 and that will be picked up to 900ma in usb 3.0. Even with this in mind it isn't the biggest problem with stoppinh usb charging in the xoom. The issue I believe is in the fact that the current charger is 12 volts and 1.5 amps. That's more than twice the volts at tripl the amperes.
Even beyond the amperage issue charging a battery that is set up to input from a 12 volt source with a 5 volts supply, even if it was possible with existing xoom hardware it would take forever!

I wish there was a way to have both options available for charging. Use the USB if you have no access to a AC adapter, albeit, a slower charge.

It seems that there's a false dichotomy here; the options aren't only trickle charge by usb and wall adapter with the proprietary connection. What about a wall charge via the usb port? I don't see why the usb port couldn't be used for the charge. I can trickle charge my n1 or I can plug it into an outlet, which charges the phone much faster. I'm sure the xoom could have been designed to suck in more power when conected to an outlet.
The only plus with the proprietary port is that we can charge and have the xoom connected to a computer or peripheral at the same time.

2A charger used with other phones

Hello!
Just curious if there is an issue with using my new Nexus 10 2A charger with other phones, such as my HTC Sensation or Blackberry Torch?
The Sensation uses a 1A charger, but I assume the phones are smart enough to only draw the current necessary, so they won't be damaged by drawing too much?
I'd like to just use the Nexus 10 charger and not have to carry other ones.

yes it is fine

Cool thanks

EniGmA1987 said:
yes it is fine
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I heard though that
*first it creates unnecessary heat because the current drawn by circuitry on lower amperage device has to be dissipated as heat
*second, this is less science/engineering but someone said that the specific pins are created by companies and the pins themselves can vary in terms of impedance, thus change the overall circuitry of the device in the long run
*third Li-Ion can pull more current than the default charger and it tends to do so to charge faster, albeit at the cost of the battery overall life deteriorates because higher charging rates also leads to faster breakdown of cells?
I wish I had sources, but this is what I pulled off the Internet when I was younger... can you please assist and advise? Would greatly appreciate (even if we start new thread from this

nutnub said:
I heard though that
*first it creates unnecessary heat because the current drawn by circuitry on lower amperage device has to be dissipated as heat
*second, this is less science/engineering but someone said that the specific pins are created by companies and the pins themselves can vary in terms of impedance, thus change the overall circuitry of the device in the long run
*third Li-Ion can pull more current than the default charger and it tends to do so to charge faster, albeit at the cost of the battery overall life deteriorates because higher charging rates also leads to faster breakdown of cells?
I wish I had sources, but this is what I pulled off the Internet when I was younger... can you please assist and advise? Would greatly appreciate (even if we start new thread from this
Click to expand...
Click to collapse
Wish I knew for sure too. REally I don't care a lot about my HTC Sensation as I plan on getting a Nexus 4 LTE when it eventually comes out. Hopefully those come with 2A chargers!
Sure I could get a Nexus 4 and use LTE right now on Bell, but I'd rather wait for an official one.

nutnub said:
I heard though that
*first it creates unnecessary heat because the current drawn by circuitry on lower amperage device has to be dissipated as heat
*second, this is less science/engineering but someone said that the specific pins are created by companies and the pins themselves can vary in terms of impedance, thus change the overall circuitry of the device in the long run
*third Li-Ion can pull more current than the default charger and it tends to do so to charge faster, albeit at the cost of the battery overall life deteriorates because higher charging rates also leads to faster breakdown of cells?
I wish I had sources, but this is what I pulled off the Internet when I was younger... can you please assist and advise? Would greatly appreciate (even if we start new thread from this
Click to expand...
Click to collapse
Everybody seems to misunderstand LiPo charging, as it is different than previous battery technologies
For general LiPo Information, you should look here. Charging information is about halfway down the page
http://www.rchelicopterfun.com/rc-lipo-batteries.html

Ill quote the important part:
Selecting the correct charge current is also critical when charging RC LiPo battery packs. The golden rule here use to be "never charge a LiPo or LiIon pack greater than 1 times its capacity (1C)."
For example a 2000 mAh pack, would be charged at a maximum charge current of 2000 mA or 2.0 amps. Never higher or the life of the pack would be greatly reduced. If you choose a charge rate significantly higher than the 1C value, the battery will heat up and could swell, vent, or catch fire.
Times are a changing...
Most LiPo experts now feel however you can safely charge at a 2C or even 3C rate on quality packs that have a discharge rating of at least 20C or more safely and low internal resistances, with little effect on the overall life expectancy of the pack as long as you have a good charger with a good balancing system. There are more and more LiPo packs showing up stating 2C and 3C charge rates, with even a couple manufactures indicating 5C rates. The day of the 10 minute charge is here (assuming you have a high power charger and power source capable of delivering that many watts and amps).
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Pretty much all phones are right around 2000mAh capacity now days so even going by the "old" golden charging rule a 2A charger would be safe to use. My Galaxy Nexus came with (I think) a 1A charger, but ever since I got my tablet shortly thereafter I have just used the tablets 2A charger for both devices and never once had an issue. It has been 8 months now of using the 2A charger on my phone. Idle life can still reach a little over 3 days on a single charge and I still get one of the best screen on time's of most people I know around the forums. So yes from personal experience a 2A tablet charger is completely fine to use on a phone.

Charging circuitry is built into the device, not the "charger"
Nothing to worry about

EniGmA1987 said:
Ill quote the important part:
Pretty much all phones are right around 2000mAh capacity now days so even going by the "old" golden charging rule a 2A charger would be safe to use. My Galaxy Nexus came with 9I think) a 1A charger, but ever since I got my tablet shortly thereafter I have just used the tablets 2A charger for both devices and never once had an issue. It has been 8 months now of using the 2A charger on my phone. Idle life can still reach a little over 3 days on a single charge and I still get one of the best screen on time's of most people I know around the forums. So yes from personal experience a 2A tablet charger is completely fine to use on a phone.
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Is it safe to assume that all chargers come default at 1C charging for their device? Because if that's the case, I figure most electronics we own can just be replaced with 10w chargers (which would make life much more convenient).
This is slightly related/unrelated, but how do you know whether a charger is "high quality" or will only provide "constant current / constant voltage"? It seems strange to me that these days, you can't find the circuitry of many devices we own publicly available so you can't check if the design is good (let alone how they chose the components in their design?). Do you (and other veterans) have any thoughts on this?
Thanks for teaching me lots!
-newb, happily reading away

I bought one of those 2amp double chargers from a seller on Amazon. It wasn't really cheap either (in cost anyway- I spent a bit more hoping it would be higher quality). After plugging in my MotoRAZR and the wife's lumia the charger popped and some plastic from the housing of the charger flew across the room! Thankfully both phones were fine.
I wondered whether both phones tried to pull more than the charger could handle and the charger had poor quality circuitry.
Since then, I've only ever bought branded official replacement chargers (Motorola, Samsung etc). I'd happily mix and match them to the phones but I'd be wary of buying a no name Chinese jobby from Ebay or Amazon marketplace.
Sent from my XT910 using xda premium

nutnub said:
Is it safe to assume that all chargers come default at 1C charging for their device? Because if that's the case, I figure most electronics we own can just be replaced with 10w chargers (which would make life much more convenient).
Click to expand...
Click to collapse
Most batteries can discharge a lot faster than they can recharge, but with LiPo, the difference is getting smaller.
Batteries used to need trickle charging as if you charge fast they would get hot, which causes the chemicals inside to expand(think like a fizzy drink, pour it fast and it will overflow) causing the battery to burst, exposing nasty chemicals.
New technology means the charger can accurately monitor how fast we fill the battery, without letting it get too hot, and also the way it is filled(as with the fizzy drink, pour down the side of a glass rather than straight to the bottom and you will fill the glass faster, with less chance of it over-spilling)
This is slightly related/unrelated, but how do you know whether a charger is "high quality" or will only provide "constant current / constant voltage"? It seems strange to me that these days, you can't find the circuitry of many devices we own publicly available so you can't check if the design is good (let alone how they chose the components in their design?). Do you (and other veterans) have any thoughts on this?
Click to expand...
Click to collapse
Unfortunately, industry is full of products made to a budget, usually by using cheaper components/designs(the charger for the ASUS TF101 was renowned for failing), so there is no foolproof way of determining 'quality' apart from word of mouth, looking at quantities sold, feedback in reviews/forums.
Basically, it boils down to 'consumer testing'
---------- Post added at 09:54 AM ---------- Previous post was at 09:38 AM ----------
Here's a bit more related information found buried deep in documents here: http://www.usb.org/developers/devclass_docs
The USB2.0 specifications for current output say the maximum current is limited to 1.8A, while USB3.0 has a maximum current limit of 5A
Hopefully, USB3.0 will quickly become a new standard for portable devices.

more questions!
First of all, let me please thank you for responding and being so thorough with your answers! There is so much information out there, and in my 22 years of existence, I cannot for the life of me sort through the sheer amount of data. I do greatly enjoy reading every little thing that is posted, especially in this thread because I think it's super important to understand the electronics that we interact with.
sonicfishcake said:
I bought one of those 2amp double chargers from a seller on Amazon. It wasn't really cheap either (in cost anyway- I spent a bit more hoping it would be higher quality). After plugging in my MotoRAZR and the wife's lumia the charger popped and some plastic from the housing of the charger flew across the room! Thankfully both phones were fine.
I wondered whether both phones tried to pull more than the charger could handle and the charger had poor quality circuitry.
Since then, I've only ever bought branded official replacement chargers (Motorola, Samsung etc). I'd happily mix and match them to the phones but I'd be wary of buying a no name Chinese jobby from Ebay or Amazon marketplace.
Sent from my XT910 using xda premium
Click to expand...
Click to collapse
My concern with this is that if Motorola or Samsung does put out a product less than optimal, would we all know? Another way of asking this is how do we know that Apple/Motorola/Samsung/Lenovo does produce superior products and it's not merely a matter of advertisement or brand image? Do you think there is a way to know, as a consumer, that even third party products are becoming more competitive, given that smaller companies have much harder time advertising and building a name/brand for themselves? (if you can't tell, I am rooting for the little guys because I may one day work for the little guys)
skally said:
Most batteries can discharge a lot faster than they can recharge, but with LiPo, the difference is getting smaller.
Batteries used to need trickle charging as if you charge fast they would get hot, which causes the chemicals inside to expand(think like a fizzy drink, pour it fast and it will overflow) causing the battery to burst, exposing nasty chemicals.
New technology means the charger can accurately monitor how fast we fill the battery, without letting it get too hot, and also the way it is filled(as with the fizzy drink, pour down the side of a glass rather than straight to the bottom and you will fill the glass faster, with less chance of it over-spilling)
Click to expand...
Click to collapse
Thank you for clarifying for us. Would you happen to know if there are specifics to recharge specs, short of finding me published papers on the technology? What you said is definitely what I've been reading from the Internet and I do trust you, just would help me have greater peace of mind with my nice and shiny devices,,,
skally said:
...
Unfortunately, industry is full of products made to a budget, usually by using cheaper components/designs(the charger for the ASUS TF101 was renowned for failing), so there is no foolproof way of determining 'quality' apart from word of mouth, looking at quantities sold, feedback in reviews/forums.
Basically, it boils down to 'consumer testing'
---------- Post added at 09:54 AM ---------- Previous post was at 09:38 AM ----------
Here's a bit more related information found buried deep in documents here: http://www.usb.org/developers/devclass_docs
The USB2.0 specifications for current output say the maximum current is limited to 1.8A, while USB3.0 has a maximum current limit of 5A
Hopefully, USB3.0 will quickly become a new standard for portable devices.
Click to expand...
Click to collapse
A quick question, just because USB3.0 should allow up to 25W, that doesn't mean that it's the standard for devices, does it? As in Nexus 10 probably can only draw 10W, even if my computer (which although stated is USB3.0) may not have the circuitry behind it to allow for such a draw? I'm a little iffy on the whole implementation of USB standards. Because if USB2.0 has draw of up to 9W, I haven't seen this from my laptop or any devices claiming to have USB2.0 ports,,,
but then again, I may be paranoid. Just trying to line up my experience with theory!
Thank you all for so much support and enthusiasm. Any chance we'll see this on a top thread somewhere?

nutnub said:
A quick question, just because USB3.0 should allow up to 25W, that doesn't mean that it's the standard for devices, does it? As in Nexus 10 probably can only draw 10W, even if my computer (which although stated is USB3.0) may not have the circuitry behind it to allow for such a draw? I'm a little iffy on the whole implementation of USB standards. Because if USB2.0 has draw of up to 9W, I haven't seen this from my laptop or any devices claiming to have USB2.0 ports,,,
but then again, I may be paranoid. Just trying to line up my experience with theory!
Thank you all for so much support and enthusiasm. Any chance we'll see this on a top thread somewhere?
Click to expand...
Click to collapse
If the Nexus kernel says the limit is 2A then that's it. It cant use more power.
Have you seen the internal USB 3.0 cable?
It's at least twice as thick as a USB 2.0 cable, I got a new chassi for my computer last week, with a couple 2.0 and a 3.0 USB front port.
And if your motherboard's built for USB 3.0, I'm pretty sure it can take the current. Otherwise there would be no meaning of adding 3.0 support.
Sent from my Nexus 10 using xda app-developers app

If something is listed as a USB3 port, it must be up to USB3 certifications. Otherwise the manufacturer of the device is liable for a huge lawsuit if issues arise. If something says USB3 that doesnt mean it IS drawing 25w though, just that the port is capable of having 25w pulled through it over the USB connector. Same with USB2 and its 9w limit on the spec. Also, plugging a tablet such as this into a computer's USB3 port does not mean it will charge faster or get faster data transfers, since the cable being used and the device are still of the older specification.

nutnub said:
Thank you for clarifying for us. Would you happen to know if there are specifics to recharge specs, short of finding me published papers on the technology? What you said is definitely what I've been reading from the Internet and I do trust you, just would help me have greater peace of mind with my nice and shiny devices,,,
Click to expand...
Click to collapse
Have a look here for info on the recharging process for Lithium based cells.
https://sites.google.com/site/tjinguytech/charging-how-tos/the-charging-process
It is worth noting the level of precautions taken while charging the cells aggressively. You really don't need a bucket of sand on standby when you plug your phone in to it's charger
nutnub said:
A quick question, just because USB3.0 should allow up to 25W, that doesn't mean that it's the standard for devices, does it? As in Nexus 10 probably can only draw 10W, even if my computer (which although stated is USB3.0) may not have the circuitry behind it to allow for such a draw? I'm a little iffy on the whole implementation of USB standards. Because if USB2.0 has draw of up to 9W, I haven't seen this from my laptop or any devices claiming to have USB2.0 ports,,,
Click to expand...
Click to collapse
There are actually 2 different current limits for each USB specification: USB2.0 has 0.5A and 1.8A, while USB3.0 has 1.5A and 5.0A
The lower of the current limits is what I would expect to get from a USB port on a computer, while the higher one I would expect to get from a dedicated charger.
I believe the higher current specification was added purely for charging mobile devices, as it is only achieved by adding a resistance across D+ and D-, removing the data transmission capabilities of the port. I don't know if that's practical, or possible with a computer USB port.
I do remember seeing motherboards with ports specifically designed for fast charging, but I haven't got any info on them as yet.

There are also kernels which enable "fast charging" on a PC. Basically it removes the data connection in software and treats any USB connection as if it were plugged into AC. You can charge just as fast on a computer as you can on a wall charger when this feature is enabled in the kernel.

I am using the N10 charger for my Note 2 and it charges bloody fast using this charger. Charging is noticeably faster on Note 2 than the stock 1A charger that came with the Note.
Battery is not getting warm and battery temps are similar to those on 1A charger. Basically its cutting the charging time in almost half.

Agreed. Note 2 charger is awesome. Bought a powergen 3.1 amp car charger for the note 2 also after watching videos and reading up on proper car chargers for the phone. Guess I can use it for my nexus 10 too.
Sent from my Nexus 10 using xda premium

I own RC cars with lipo batteries and rule of thumb is total mah divide by 1000 = the Max amp charger you can use. So a 2100mah battery can be charged with a 2.1A charger.
On that note I charge my Samsung s3 that has a 2100mah battery with a 2.1A car charger without any issue.
Sent from my SGH-T999 using Tapatalk 2

I used the N10's charger to charge my iPod Nano 3rd gen, no problem

What's the big deal with wireless charging?

Warning: When I make this post, I have no intention of being rude. Moving on.
Lately I've seen lots of posts like, "Wireless charger, cheap on Amazon!" and "Wireless charger, 40$!" Ok, thanks for finding these things for us! But is wireless charging practical? Why is wireless charging being made such a big deal? Persononaly, I cant justify avoiding the phones intended function, just to charge wirelessly. Not to mention, I have to pay 40+$ for said wireless charger. I mean really, is it that important to "preserve the USB port"? On the other hand, I do think wireless charging is a neat idea, but only that.
So I guess my question is, are there reasons that make this worth my money? What are they?
Sent from my Nexus 4 using Tapatalk 2

Laziness and neatness for me. It's less work to place it on a wireless charger than to have to find the usb cable and plug it in. Plus it eliminates the eyesore of having an unplugged USB cable right next to my bed all day.

It's great that Google included it for those who have a use for it but I have to say I'm with the OP. It just doesn't make much sense to me to have to buy an expensive device that takes up space to save a few seconds spent plugging the device in once a day. Different strokes for different folks, eh. Plus I'd have constant paranoia about whether the device was actually going to keep charging while I sleep (irrational, I know. Nobody said I had to make sense.) That's why we love Android (or not, for the trolls lol)

nbell13 said:
Laziness and neatness for me. It's less work to place it on a wireless charger than to have to find the usb cable and plug it in. Plus it eliminates the eyesore of having an unplugged USB cable right next to my bed all day.
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Yeah, I guess that's reasonable... But is it really worth 40+$ to save yourself a few seconds everyday?
Sent from my Nexus 4 using Tapatalk 2

Alot of Nexus 4 users upgraded from the Gnex. The Gnex had a horrible USB port. If you go to the Gnex Q&A section and search for bad USB port you will get easily over 100 threads. And although the Nexus 4 is obviously a different manufacturer, it was enough to make us paranoid. Add the paranoia to the fact that wireless charging is just cool new technology definitely makes it worth $50 TO SOME people.

I like cables. Seriously. Cheap and reliable. But that's just me.

I think the idea of them is great, but they just aren't for everyone. I'd love one, for the visuals but in all honesty, I have no reason to own one. For one, I don't even have a good surface I could put it on, most of them have something on or are not near a plug socket.

The wireless charging orb from Google advertises charging the Nexus4 in 4 hours.
In my experience the wall charger does it in about 2 hours.
I've been using my Nexus4 for navigation in my car. A car mount with wireless charging
indeed sounds great - plugging and unplugging the USB port in the car is uncomfortable.
But I discovered that with the GPS on and the screen at high brightness the phone
can not be properly charged with a 0.5A car lighter adapter. 2A ones do work.
So I wonder if a wireless charging car mount is even a possibility. It is questionable whether it
can pump the necessary power to run the phone in such a demanding application.
Mind you my setup can get pretty hot at times on the USB and it's the dead of winter in here.

Motorcycle GPS phone mod

A while back I upgraded from my old lenovo a830 up to a OnePlus Two as a result of the lenovo's micro USB port becoming faulty and only briefly taking charge when forced in to certain angles.
I have now considered making an enclosure for the device that mounts it to my motorcycle handlebar so I can use it as a GPS navigation device. The problem is, I cannot charge it in its current condition, other than that the device is perfect. The lenovo has a removable battery so I considered removing the stock battery, putting a battery bank in the enclosure and connection the bank directly to the positive and negative terminals of the phone, but I am unsure of whether it would supply the correct voltage and current. Another consideration was soldering down the wires of a USB cable to the positive and negative of the motherboard after removing the old micro USB port, but I'm afraid I'd end up destroying the board that way through lack of skill.
Are there any other ways of going about this? All suggestions are helpful

Katsu831 said:
All suggestions are helpful
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I hardwired a Galaxy S4 into my Suzuki Hayabusa a couple years or so ago.
My thread on the process may or may not be helpful?
http://forum.xda-developers.com/showthread.php?t=2357434
I would not attempt this mod on anything with super smart charging like Qualcomm Quick Charge 2.0. Not without additional research.
But for anything charging less than 2000mah, you should be fine.

CZ Eddie said:
I hardwired a Galaxy S4 into my Suzuki Hayabusa a couple years or so ago.
My thread on the process may or may not be helpful?
http://forum.xda-developers.com/showthread.php?t=2357434
I would not attempt this mod on anything with super smart charging like Qualcomm Quick Charge 2.0. Not without additional research.
But for anything charging less than 2000mah, you should be fine.
Click to expand...
Click to collapse
Thanks for the response!
It was very interesting to read your posts and have definitely given me ideas for my project, however I'm still faced with the one major problem. My device's USB port is virtually unusable, so I need to find how I can get power to it safely.
Is your setup mounted to your bike still? I'd love to see some pictures if possible

Katsu831 said:
My device's USB port is virtually unusable, so I need to find how I can get power to it safely.
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Your best bet for learning to do this is to Google up Nexus 7 car installs. The Nexus 7 is very popular as a car stereo and has been modded by end users for battery-less installs and even direct charging I think.
I can't find the link right now but this youtube video might give you an idea on how to tap into the battery for a hard wire charging connection:
https://www.youtube.com/watch?v=I-pjLIVIslI
My phone is no longer attached to the bike.
It popped off that mount in my pics when I harsh landed a wheelie.
There are other, better mounting options for phones but not ones that I like... yet.
I removed all the cabling recently to re-do it.

Wireless Qi charging mod possibilities?

With my aging Nexus 6 coming to the end of its lifespan as a daily carry device, I've been looking for other devices. Looking into the Google Pixel 3 / 3 XL or OnePlus 6T, both phones have a few issues of concern that will likely require compromise from the Pixel's lack of RAM for a flagship as well as the OP6T's lack of wireless charging. I will never understand how OnePlus has such a grudge against Qi charging as an option; simply because it is not as fast as a USB connected "Dash" charge (unsure why they won't use the standard Qualcomm quick charging spec that many devices uses) doesn't mean it isn't desirable, as I've been charging my phones predominantly via wireless Qi since the Nexus 4 days!
However, I was wondering if interested enthusiasts could remedy OnePlus' oversight with a Wireless Qi mod? After market, latest-generation Qi receivers are apparently plentiful and inexpensive (I'd worry of suspect quality in some cases) , but many seem the type to be placed on the rear of the chassis inside a case and connect to the USB plug. They can also be placed inside the phone itself, but still make the connection via the bottom USB port. While neither of these are entirely disqualifying, it would be much better if there was a way to connect the Qi receiver internally, leaving the USB port accessible. Back in the days of the earlier Galaxy devices, I can remember there used to be receivers mounted internally in certain devices - https://www.amazon.com/VILIGHT-Wire...1790504&sr=8-24&keywords=wireless+qi+receiver - is one example, thanks to the way the battery and layout of the phone is set up.
Perhaps something similar could be done for the OnePlus 6T? Does anyone know the feasibility regarding the internal layout of the 6T? If we are not lucky enough to just be able to tap into a few connections, could there be some sort of (ideally solder free) mod done with relative ease? Perhaps there is something else I'm not considering, but I assume it all hinges on the internals of the 6T.
Its insane that users should need to consider a mod in order to add such a common feature in flagship or even mid-grade phones, but if there's a relatively good chance of a mod like this it would encourage me to look closer at OnePlus this time around. Thanks.

Watch jerryrigeverything's video on YouTube?

RanceJustice said:
With my aging Nexus 6 coming to the end of its lifespan as a daily carry device, I've been looking for other devices. Looking into the Google Pixel 3 / 3 XL or OnePlus 6T, both phones have a few issues of concern that will likely require compromise from the Pixel's lack of RAM for a flagship as well as the OP6T's lack of wireless charging. I will never understand how OnePlus has such a grudge against Qi charging as an option; simply because it is not as fast as a USB connected "Dash" charge (unsure why they won't use the standard Qualcomm quick charging spec that many devices uses) doesn't mean it isn't desirable, as I've been charging my phones predominantly via wireless Qi since the Nexus 4 days!
However, I was wondering if interested enthusiasts could remedy OnePlus' oversight with a Wireless Qi mod? After market, latest-generation Qi receivers are apparently plentiful and inexpensive (I'd worry of suspect quality in some cases) , but many seem the type to be placed on the rear of the chassis inside a case and connect to the USB plug. They can also be placed inside the phone itself, but still make the connection via the bottom USB port. While neither of these are entirely disqualifying, it would be much better if there was a way to connect the Qi receiver internally, leaving the USB port accessible. Back in the days of the earlier Galaxy devices, I can remember there used to be receivers mounted internally in certain devices - https://www.amazon.com/VILIGHT-Wire...1790504&sr=8-24&keywords=wireless+qi+receiver - is one example, thanks to the way the battery and layout of the phone is set up.
Perhaps something similar could be done for the OnePlus 6T? Does anyone know the feasibility regarding the internal layout of the 6T? If we are not lucky enough to just be able to tap into a few connections, could there be some sort of (ideally solder free) mod done with relative ease? Perhaps there is something else I'm not considering, but I assume it all hinges on the internals of the 6T.
Its insane that users should need to consider a mod in order to add such a common feature in flagship or even mid-grade phones, but if there's a relatively good chance of a mod like this it would encourage me to look closer at OnePlus this time around. Thanks.
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I bought the Nillkin Type C Wireless Charging Receiver from amazon and stuck inside the case that came with the phone. I had bought another case on amazon but that one was too thick to get a QI signal to go through. The charging is ok, not the fastest tho.

I am looking at getting this. Former Nexus 6 user myself. Someone already mentioned this, but here is the amazon link:
https://www.amazon.com/dp/B07BFCBPJ...&pd_rd_r=1a965010-e45d-11e8-bc94-f9678d2f68d0
other option:
https://www.amazon.com/Nillkin-Wireless-Charging-Receiver-Charger/dp/B01M11UT3V

I have the nillkin on my OP6. Since I always use a case, it's a non-issue to stick the charge pad inside the case.

Thank you all for the links to reliable plug-in Qi receivers; if I go with the OP6T I may end up getting one of those if there's no other alternative. User reports and feedback on Amazon suggest these are pretty delicate in how they're bent and the like, so I am curious if anyone is unplugging/replugging them (to connect to the USB port for some other reason) with reasonable frequency without issue?
I've not seen any content from "jerryrigeverything" on YouTube but I'll check it out when I'm able to do so.
The big question however is the viability of an internal Qi receiver installation that does not require plugging in via the external USB jack....
Thanks!

RanceJustice said:
Thank you all for the links to reliable plug-in Qi receivers; if I go with the OP6T I may end up getting one of those if there's no other alternative. User reports and feedback on Amazon suggest these are pretty delicate in how they're bent and the like, so I am curious if anyone is unplugging/replugging them (to connect to the USB port for some other reason) with reasonable frequency without issue?
I've not seen any content from "jerryrigeverything" on YouTube but I'll check it out when I'm able to do so.
The big question however is the viability of an internal Qi receiver installation that does not require plugging in via the external USB jack....
Thanks!
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You will need to remove the back which is glass and do internal soldering.
Pass.

I've loved wireless charging on the n6. And was bummed about it missing on the 6t. But honestly battery life is so insanely good on the 6t. I mean insane! And it charges so fast, I don't feel the desire to get wireless charging anymore. I kid you not. Battery life and charging are fantastic compared to the Nexus 6.
I'm down to 38% and it's been 23 hours since I took it off the charger.

I have been using the nillkin since I got phone. I had a note 8 and used wireless exclusively. So once I got the 6t I have been doing the same. The battery life on this phone is so good I just charge once a day. I go to sleep lay it on wireless charger and wake up to 100%. No messing around with cables. It also charges just as fast as the fast wireless charging on my note 8.
https://www.amazon.com/gp/aw/d/B01M11UT3V?psc=1&ref=yo_pop_mb_yo_pop_mb_pd_t2

Just got this and it's working very well
USB C Qi Wireless Charger Receiver, sharllen Universal Ultra Thin Charging Adapter Receptor Receiver Patch Module Chip iPhone 7 7Plus, iPhone 6 6Plus, iPhone 5 5s 5c SE - Rose Gold https://www.amazon.com/dp/B07CSQ43X2/ref=cm_sw_r_cp_apa_rhK5BbC3RQZQB
Sent from my crosshatch using XDA Labs

Has anybody with one of these noticed any issues with heat?
I have an aftermarket Qi adapter attached to the battery of my Samsung S5 phone and whether with an old or a new battery, the phone generates a lot of heat when charging from a low battery state. I've been concerned about overheating the processor.

Nsane457 said:
Has anybody with one of these noticed any issues with heat?
I have an aftermarket Qi adapter attached to the battery of my Samsung S5 phone and whether with an old or a new battery, the phone generates a lot of heat when charging from a low battery state. I've been concerned about overheating the processor.
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QI Charging (any charging for that matter) is going to generate heat,more so on slow QI Charging.
It takes longer & there's no heat pipe/paste in the OP6T to aid in dissipating the heat. (see video teardown,FF to the 1:30 mark):
I always use a small desktop fan near my charging points at home.
I'm not a battery conserving hawk or handle my phones as if they're priceless museum pieces,but,a small fan is any easy to use solution & in cooling the phone,may actually speed up the charging process a bit.

I have a couple that have worked previously, but couldn't for the life of me get them working on my OP6. I've ordered an OP6T so hopefully will be able to get it working when it arrives.

I have a strange issue with the QI Receiver i bought from Ali express. When i put the Qi Receiver on the back of the phone and put it on a charging pad, i can see the battery percentage goes up all the way to 100% but the phone never thinks that its getting charged. I mean the charging symbol never comes up and even BBS and other Battery Monitor apps don't think its getting charged. But the percentage reaches 100. Does anyone know a solution for this issue

ozzmanj1 said:
I've loved wireless charging on the n6. And was bummed about it missing on the 6t. But honestly battery life is so insanely good on the 6t. I mean insane! And it charges so fast, I don't feel the desire to get wireless charging anymore. I kid you not. Battery life and charging are fantastic compared to the Nexus 6.
I'm down to 38% and it's been 23 hours since I took it off the charger.
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Click to collapse
I had wireless charging on a few devices previous to my OnePlus 6t and loved it. When I'm using OOS 10.3.8 and xXx magisk rom I charge my phone once every two days and I'm a HEAVY user!! I usually get about seven hours screen on time on my 6t!!! Insane battery is right!! I do miss wireless charging though. Appreciate everyone sharing here. I may try some things out as well. If and when I do I'll return and comment about it. Cheers.