USB charging - Xoom Q&A, Help & Troubleshooting

Is there a way to enable USB charging?
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malcovitch said:
Is there a way to enable USB charging?
Sent from my Xoom using XDA Premium HD app
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As far as I know, and have read ... The original Motorola Xoom does not and will not charge via usb because of the voltage needed. The Xoom2 or the Xoom FE both of which charge via usb.

That's disapointing ...

USB charging can be modified on phones via kernel settings, if the kernel supports it.
I'm sure this feature would exist by now if it could be done. I too am sad.

Eh, it may suck that we have to use a proprietary cable...but damn does it charge fast.
Sent from my MB855 using Tapatalk

is there any proof of kernal enabled usb charging?

rubber guard said:
is there any proof of kernal enabled usb charging?
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For Xoom?
Siyah kernel for Galaxy S2 (this is what I used) with ExTweaks app lets you change the input voltages from USB/AC charger.

AFAIK the Xoom doesn't have any electrical paths for USB voltage to the battery for charging. Would need to do some serious dirty work to get it working.
Simply: not worth it.
EOS N113 @ MZ604 [XDA-HD]
Stock @ SGH-I717R [XDA-Premium]

no chance to charge via usb.
the separate charging port is nice, the xoom charges fully in about 2 hours from <10%.

Eun-Hjzjined said:
AFAIK the Xoom doesn't have any electrical paths for USB voltage to the battery for charging. Would need to do some serious dirty work to get it working.
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Exactly. I think i saw a tutorial for doing this on YT, but it looked kinda scary for someone who isn't used to it. So really not worth it.

Eun-Hjzjined said:
AFAIK the Xoom doesn't have any electrical paths for USB voltage to the battery for charging. Would need to do some serious dirty work to get it working.
Simply: not worth it.
EOS N113 @ MZ604 [XDA-HD]
Stock @ SGH-I717R [XDA-Premium]
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Click to collapse
Lol you're pretty much on the money, the XOOM USB does not connect straight to the battery, hence the reason why you cannot charge it.

One reason why this is not possible is because the Xoom uses a much higher voltage battery (7.4V afaik) and so converting the 5V USB voltage to the >8V needed in order to even think about charging the battery would make the charging slow, inefficient and costly to implement.
I don't know why Moto chose to use a higher voltage battery with the problems it creates, but one thing it does mean is that it can only be charged using the charger that Moto supplied.

Yeah. That charger.... mine died and I had to buy a replacement. Walmart was the only place I could get one, and cost me nearly 40 bucks.... not happy.
I'm thinking of returning it and trying an HD dock.
EOS 2.0 @ MZ604 [XDA-HD]
Stock @ SGH-I717R [XDA-Premium]

Related

Battery goes dead while plugged in.

I recently bought a hdmi cord and downloaded netflix to my phone. While the phone is plugged into wall my phone goes dead while watching netflix with hdmi being used. does the hdmi take more power then phone takes in or what. Someone please help out because this sucks. Im running 1.5 gummy gb.
piperat said:
I recently bought a hdmi cord and downloaded netflix to my phone. While the phone is plugged into wall my phone goes dead while watching netflix with hdmi being used. does the hdmi take more power then phone takes in or what. Someone please help out because this sucks. Im running 1.5 gummy gb.
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Click to collapse
Yes you are correct. It also drains more than charging when you use the Mobile Hotspot.
Were you on 4G or WiFi?
I had the same problem in my car streaming bluetooth audio. I got a better charger and it wasn't as bad.
Well that sucks. I wish sammy would have thought that out. Thanks for the help.
Sent from my gummy gb with a cool midnight blue
Does the new GB leak charge at a higher mah?
Sent from my SCH-I510 using XDA App
No it doesnt i tried it on gb leak when i noticed the issue. Now im on froyo and will try again
Sent from my SCH-I510 using XDA App
It's all about the charger. Ever notice how the low battery warning says to stop using it or it will charge inefficiently? A normal computer USB port puts out 500 milliamps, a Droid X charger puts out 850, and the Charge charger does 1 amp. Basically, the higher the charger amperage, the faster the charge. The Charge charger might not be able to meet the demands of the device while it's under heavy use, which is why I use my Galaxy Tab charger (2A). It works perfectly.
EDIT: tl;dr the ROM does not matter for charging, it's all about the hardware. Use a higher amp charger.
Sent from my Droid Charge running Humble 1.4
Thanks for advice. That is a simple solution
Sent from my SCH-I510 using XDA App
I feel like there's something weird going on with me. Using mobile hotspot seems to drain less energy than charging for me with the stock charger, except there's an issue if I let it charge up to 100% while using mobile hotspot. If I let this happen, it seems to stop charging and tricks the battery into thinking that it's still at 100% when it's in fact draining. If I unplug it after some time (when it still think it's at 100%) I'll see the actual battery life percentage as if it stopped charging when it reached 100%.
My temporary solution to this is to unplug when I get to 100% and plug it back in when my battery is low and it'll eventually reach 100% again then repeat (all while mobile hotspot is active). Of course this is not an ideal solution... I sometimes wonder if it has anything to do with the full battery notification/popup because ever since I switched to the Gingerbread leak I haven't been able to disable that. I think if I use a ROM with it already disabled, I can leave my phone plugged in and mobile hotspot won't ever drain to empty. Not sure if I have tested this thoroughly enough though.
I use a 1A charger, but the phone only charges around 250mAh. The phone purposely charges at a lower rate. This has been discussed many times. The software is a deciding factor too.
Sent from my SCH-I510 using XDA App
H3Dude said:
I use a 1A charger, but the phone only charges around 250mAh. The phone purposely charges at a lower rate. This has been discussed many times. The software is a deciding factor too.
Sent from my SCH-I510 using XDA App
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Same thing happens to me. I have 1A and higher chargers, but because the phone doesn't recognize it, it refuses to charge at the higher rate.
quarky42 said:
Same thing happens to me. I have 1A and higher chargers, but because the phone doesn't recognize it, it refuses to charge at the higher rate.
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Click to collapse
It is a software limitation. I had the original incredible for a while, one of the big deals with it was charging it in the car while using GPS.
One update they turned on slow charging, but then devices were dieing as they were being charged, so they pushed another update out to reverse it so they would receive a faster charge.
So you are limited by the hardware and what it can handle, as well as the software and how its programmed to handle it...
If its software maybe the devs can adjust this in their roms
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piperat said:
If its software maybe the devs can adjust this in their roms
Sent from my SCH-I510 using XDA App
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Id imagine its kernel related?
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quarky42 said:
Same thing happens to me. I have 1A and higher chargers, but because the phone doesn't recognize it, it refuses to charge at the higher rate.
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Odd...my Gtab charger works fine (don't know the input amperage, but it's rated at 2A). Maybe my ROM/kernel, or just a Samsung thing?
Sent from my Droid Charge running Humble 1.4
I usually use the charger from my old fascinate and my phone charges normally
Sent from my SCH-I510 using XDA App

Good Car Charger?

Does anyone know of a good car charger? You know, the kind that plugs into your cigarette lighter socket.
I had one at one time but it died after only a week of usage.
I got this one and it works fine with a spare microusb cable. Best part is that I can now have two phones charging at once.
Thanks!
At only $8, that's a steal of a deal! Just bought it with free two-day shipping.
Should have checked Monoprice
http://www.monoprice.com/mobile/Pro...Id=103&categoryId=10321&subCategoryId=1032102
There used to be a twin plug one (I have it) but I can't find it now.
Sent from my SCH-I510 using xda premium
trparky said:
Does anyone know of a good car charger? You know, the kind that plugs into your cigarette lighter socket.
I had one at one time but it died after only a week of usage.
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Click to collapse
In my opinion... I have wasted alot of $ on trying to get away cheap on a car charger. By far the best one is the official verizon one. It charges to 100% from 0 in less than 2hrs and charges while I am navigating, wifi tethering and using bt at the same time. Well worth the extra cash.
Tweakstock v1.4, XDA Premium
imnuts said:
I got this one and it works fine with a spare microusb cable. Best part is that I can now have two phones charging at once.
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I got a similar one, but it has one port meant for an ipad/tablet, which outputs 2A - that is helpful for when I am running car navigation and wifi hotspot at the same time. I also had to get a charging-only usb cable because regular cables would trigger usb storage mode on the phone.
ddh819 said:
I got a similar one, but it has one port meant for an ipad/tablet, which outputs 2A - that is helpful for when I am running car navigation and wifi hotspot at the same time. I also had to get a charging-only usb cable because regular cables would trigger usb storage mode on the phone.
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To bad the Charge won't draw more than ~0.8A... Also, it is the charger causing the phone to go to mass storage mode, not the cable. A microUSB cable is a microUSB cable, and if the cable says "charging only" they have the data pins shorted out (I believe that's what is done) and it really isn't fixing the root cause of the issue.
imnuts said:
I got this one and it works fine with a spare microusb cable. Best part is that I can now have two phones charging at once.
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Click to collapse
nowai! That's the same car charger I use!
Only thing about it is, its a little short, so it may not fit perfectly in every car's cigarette lighter port. Won't work in my dad's car. :/
imnuts said:
To bad the Charge won't draw more than ~0.8A... Also, it is the charger causing the phone to go to mass storage mode, not the cable. A microUSB cable is a microUSB cable, and if the cable says "charging only" they have the data pins shorted out (I believe that's what is done) and it really isn't fixing the root cause of the issue.
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Click to collapse
Did you ever try fastcharger script? It suppose to speed up your phone charger using USB.
mtmerrick said:
nowai! That's the same car charger I use!
Only thing about it is, its a little short, so it may not fit perfectly in every car's cigarette lighter port. Won't work in my dad's car. :/
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Click to collapse
It is short, but works perfectly in my car. I don't even have to take it out to close my cigarette lighter, so it just stays there
buhohitr said:
Did you ever try fastcharger script? It suppose to speed up your phone charger using USB.
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Click to collapse
The only way you could speed up charging would be to modify it via the kernel, or try to force load a module that does the same thing. Odds are the fastcharger script just gets the system to recognize USB charging as a wall charger. Either way, I wouldn't recommend using anything that says it'll make your phone charge faster unless there was SIGNIFICANT data to support the claim as well as evidence that it doesn't harm the hardware.
Charging the battery too fast is very dangerous too. I tried "supercharging" one of my batteries and it almost caught fire.
Sent from my SCH-I510 using xda premium
I would suggest this one http://www.amazon.com/Motorola-Rapid-Vehicle-Power-Adapter/dp/B002N8HG0Y/ref=sr_1_2?s=electronics&ie=UTF8&qid=1329181948&sr=1-2 since it is made by moto and provides 1 ampere instead of .7 or .5 others provide.
trparky said:
Does anyone know of a good car charger? You know, the kind that plugs into your cigarette lighter socket.
I had one at one time but it died after only a week of usage.
Click to expand...
Click to collapse
This is a great charger I have been using at it charges my battery quick too.. http://www.amazon.com/gp/aw/d/B000S5Q9CA/ref=mp_s_a_1?qid=1323055371&sr=8-1
Sent from my SCH-I510 using XDA App
jager420 said:
This is a great charger I have been using at it charges my battery quick too.. http://www.amazon.com/gp/aw/d/B000S5Q9CA/ref=mp_s_a_1?qid=1323055371&sr=8-1
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Click to collapse
I've been using this for the past 5 months and have been very happy with the charging speed. It seems faster than my standard wall charger.
wahanlato said:
To bad the Charge won't draw more than ~0.8A... Also, it is the charger causing the phone to go to mass storage mode, not the cable. A microUSB cable is a microUSB ee
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Click to collapse
It could be the cable, but the odds are against that. The way to tell if it was the cable would be to try it in another AC charger to see what it does.
, I wouldn't recommend using anything that says it'll make your phone charge faster unless there was SIGNIFICANT data to support the claim as well as evidence that it doesn't harm the hardware.
I tried a 2.0 amp USB car charger and the factory cable.. .my battery got really hot and didn't charge at all.. .not sure why but the 1.0 amp charger seems to work the best...I have seen a 5.0amp at Walmart in the car department.. .but I don't feel like experimenting with that
Sent from my SCH-I510 using xda premium
Samsung smartphones and Tablets charge in std mode (Charging USB) unless the two data wires are "shorted". (I have seen it done directly in a high speed charge only cable or in the Samsung chargers. Some say they use a resistor.) When the data pins are "shorted", Samsung switches to high speed charging. (Charging AC). I have been harassing a factory overseas for a dual car charger (2100mA) with one std. Port (iPad) and one Samsung port. It should be available soon.
Sent from my Samsung Captivate running ICS 4.0.4 AoCP CP v2.1 w/KG3 Modem
Hindle1225 said:
In my opinion... I have wasted alot of $ on trying to get away cheap on a car charger. By far the best one is the official verizon one. It charges to 100% from 0 in less than 2hrs and charges while I am navigating, wifi tethering and using bt at the same time. Well worth the extra cash.
Tweakstock v1.4, XDA Premium
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I haven't tried another car charger personally, but can vouch for the Verizon one. Always works for me and I just leave it plugged in the lighter outlet in my center console so whenever I need it, it's easy and quick to plug in the phone. Also has the scrunchy style cord to keep things neat. But at the same time, it makes it more difficult to use the phone while it's plugged in as it keeps wanting to pull back lol

Charging thru PC

I have the new 300 and it charges fine using the wall plug, but will not charge when plugged into the PC. Is this normal?
I believe it will only charge when the unit is off if you plug into your pc.
it will probably charge slowly if at all. remember the output for PC is for a normal USB which is 5v. the wall charger is 12 V if i'm not mistaken.
I'm pretty sure its 15VDC, 1A. but either way its more than a computer's USB (5VDC, 500mA).
Think of the cord as a pipe in your house. The Voltage (VDC) is the size of the pipe, and the Current (A, or mA) is the speed at which the water flows through the pipe. If you slow down the waterflow, you'll still get the water you need, but a little bit slower. If you shrink the size of the pipe you get a lot less water at a time making it much much slower, probably not even enough to replace what is being used at the time.
Hope my analogy helps.
We need the fast charge option from aokp. We need a few other things before that option though.
Sent from my Galaxy Nexus using xda premium
It was possible to charge the TF101 on an USB 3.0 port on the PC.
And the new Asus mainboards have an extra USB charging mode witch can be activated in the UEFI BIOS.
Gesendet von meinem HTC One X mit Tapatalk 2
It says in the user manual (why read that useless junk?) that the tablet can only charge via USB while it's turned off. It's by design, as stupid as that design may be.
EndlessDissent said:
It says in the user manual (why read that useless junk?) that the tablet can only charge via USB while it's turned off. It's by design, as stupid as that design may be.
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Click to collapse
But it still charges when pluged into a pc it just doesnt say its being charged (you can check it yourself just plug it into your pc and wait a while the battery percentage will go up...)
Sent from my ASUS Transformer Pad TF300T using XDA
That's interesting. I didn't try it, but I read the user manual, and I figure it's best to follow the manufacturer's instructions (until the bootloader is unlocked, anyway), especially with brand new expensive electronics.
Good to know, though. Thanks.
wideopn11 said:
We need the fast charge option from aokp. We need a few other things before that option though.
Sent from my Galaxy Nexus using xda premium
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Mine charges from 5% to 90% in less than 1hr and a half... It's the one of the fastest charging tablets...
Sent from my SPH-D710 using xda premium

USB adaptor that outputs 2A

Hi,
I just got this item from ebay: New USB Charger Converter Adapter for Samsung Galaxy P1000 Tab
http://www.ebay.co.uk/itm/190706474031?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
it says in the specs that "Connects Samsung P1000 charging cable with 2.1A current output power adapter."
I tried with the tablet 8.9 and it really charges from the computer USB, unlike a without this converter that only keeps the charging.
Im using A1 kernel and Im just wondering if there is any risk? or someone have experience this kind of adapters earlier?
ERM. Doesn't the tab come with a 2.1amp out brick in the box?
Both my 10.1 and 8.9 came with the same 2.1amp brick.
If you want faster charging, you gotta find a kernel that supports fast charge. AFAIK, AOKP builds this in and can be swapped on and off in performance settings.
Sent from my SAMSUNG-SGH-I957 using XDA Premium HD app
Eun-Hjzjined said:
ERM. Doesn't the tab come with a 2.1amp out brick in the box?
Both my 10.1 and 8.9 came with the same 2.1amp brick.
If you want faster charging, you gotta find a kernel that supports fast charge. AFAIK, AOKP builds this in and can be swapped on and off in performance settings.
Sent from my SAMSUNG-SGH-I957 using XDA Premium HD app
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Click to collapse
Im talking about an attachment that makes your tablet to charge faster from the usb port of the computer
Sent from my GT-P7300 using xda app-developers app
if you're charging from a standard .5A usb 2 port you won't charge any faster as this won't magically turn your .5A port to a 2.1A. what it will do is allow you to fast charge from a source that can output more power, like an aftermarket usb charger or possibly a usb 3.0 port.
madsquabbles said:
if you're charging from a standard .5A usb 2 port you won't charge any faster as this won't magically turn your .5A port to a 2.1A. what it will do is allow you to fast charge from a source that can output more power, like an aftermarket usb charger or possibly a usb 3.0 port.
Click to expand...
Click to collapse
I have it with me, and it does the magic, normal usb cable doesnt charge at all ( on a1 kernel 1.7.3) with this device in few minutes i see an increase in charge.
Im just a bit worried since i havent seen any of these around, if someone else have used them
Sent from my GT-P7300 using xda app-developers app

[Q] OTG and Charging

I recently got a Nexus 5 to replace my old Nexus S and really like it. I am having one challenge that I was hoping for help on:
I have got OTG working with stickmount fine, but I am trying to use this Y-cable to charge while using it and I can't get the phone to charge from the cable at all (with or without a USB drive connected). I have been able to get other, non-Nexus's to charge from the cable so it isn't the cable that is the problem.
I am rooted but running a stock kernel and rom - any ideas why it might not be working or if there is a custom kernel that has enabled the capability otherwise disabled in the phone?
Probably you need a modified Kernel like Nexus 7
avalpert said:
I recently got a Nexus 5 to replace my old Nexus S and really like it. I am having one challenge that I was hoping for help on:
I have got OTG working with stickmount fine, but I am trying to use this Y-cable to charge while using it and I can't get the phone to charge from the cable at all (with or without a USB drive connected). I have been able to get other, non-Nexus's to charge from the cable so it isn't the cable that is the problem.
I am rooted but running a stock kernel and rom - any ideas why it might not be working or if there is a custom kernel that has enabled the capability otherwise disabled in the phone?
Click to expand...
Click to collapse
You need a modified Kernel something like the following Kernel. But at the moment it is only available for Nexus 7.
http://mehrvarz.github.io/usb-host-mode-power-management-nexus7/
I'm interested in this too
wicpp said:
You need a modified Kernel something like the following Kernel. But at the moment it is only available for Nexus 7.
http://mehrvarz.github.io/usb-host-mode-power-management-nexus7/
Click to expand...
Click to collapse
I had OTG charging on my Galaxy Nexus as well as the N7. I just tried it too on my N5 with Elemental X kernel, no go. That's odd no one has come out with this feature yet if that's the case as I'm sure it's very sought after especially with people who have the 16gb model like myself that hook up to external hard drives to save space on the phone but they need external power.
Otg + Charging is also very useful when you are playing games using GamePad
t1.8matt said:
I had OTG charging on my Galaxy Nexus as well as the N7. I just tried it too on my N5 with Elemental X kernel, no go. That's odd no one has come out with this feature yet if that's the case as I'm sure it's very sought after especially with people who have the 16gb model like myself that hook up to external hard drives to save space on the phone but they need external power.
Click to expand...
Click to collapse
If you are using a USB Connection Game Pad via OTG, graphics heavy games use too much battery and usually you can not play for long. This also increases the importance of such kernel for Nexus 5 as well. Nexus 5 have smaller battery but it can play decent Graphics.
I do not like Game Pads with Bluetooth connectivity as they have control latency or lag and your moves are not as quick as even the touch screen, where as you use Game Pads to improve your control moves and probably make them better than touch screen.
wicpp said:
If you are using a USB Connection Game Pad via OTG, graphics heavy games use too much battery and usually you can not play for long. This also increases the importance of such kernel for Nexus 5 as well. Nexus 5 have smaller battery but it can play decent Graphics.
I do not like Game Pads with Bluetooth connectivity as they have control latency or lag and your moves are not as quick as even the touch screen, where as you use Game Pads to improve your control moves and probably make them better than touch screen.
Click to expand...
Click to collapse
The PS sixaxis controller worked great on my N7 for a while, no lag in gameplay. Until Asus had to fix it then I could never get it to work properly again.
I think Nexus 5 USB Port is 5 Pin
t1.8matt said:
The PS sixaxis controller worked great on my N7 for a while, no lag in gameplay. Until Asus had to fix it then I could never get it to work properly again.
Click to expand...
Click to collapse
I think that Nexus 5 USB Port is 5 Pin and not 11 pin like Galaxy S4 or Galaxy S3. Can someone please confirm this?
If this is the case will be still be able to Charger Phone and do OTG concurrently or simultaneously ?
Yes but I believe it's something that has to be addressed at the kernel level.
I use a powered USB hub and even though the phone doesn't show any charging animations, going into the battery info screen shows it is charging (though it doesn't say usb or ac, just charging)
from what I have seen it's even less than trickle charge.
USB flash drive mounted.
Screen off
Battery goes up about 1% every 10-15 minutes.
So clearly current is being passed from the hub to the phone. Just not a lot
Sent from my Nexus 5 using xda app-developers app
Can we use QI Wireless Charging along OTG
Alex240188 said:
Yes but I believe it's something that has to be addressed at the kernel level.
I use a powered USB hub and even though the phone doesn't show any charging animations, going into the battery info screen shows it is charging (though it doesn't say usb or ac, just charging)
from what I have seen it's even less than trickle charge.
USB flash drive mounted.
Screen off
Battery goes up about 1% every 10-15 minutes.
So clearly current is being passed from the hub to the phone. Just not a lot
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
I am not sure but can we use QI Wireless charging along OTG. I have read somewhere that it charges but there is a bug in Kernel due to which it does not know that battery is being charged there is no animation or text to show that battery is being charged. Another concern is that if OS does not know about charging and battery is being charged is it not dangerous can it not overcharge and below the battery etc.?
Alex240188 said:
Battery goes up about 1% every 10-15 minutes.
Click to expand...
Click to collapse
I use exactly the same Y-cable from amazon as avalpert. I connect my USB 2.5" harddisk first at the Nexus charger and let it spin up. Then i connect the OTG cable to my Nexus 5 (rooted stock ROM & stock kernel). The battery icon in the status bar has no charging animation but in settings it says its charging. Around 1% in 5-10min. Even if the screen is on.
@ avalpert: U could check the current of your usb drive in the manufacturer's datasheet and subtract this from the current, your charger is able to provide. My Nexus 5 charger can output max. 1.2A at 5V. Maybe you're using another model and there is just little current left to charge as Alex remarked.
But the difference is I was only powering a flash drive which uses next to no power. And still only 1% every 10-15 minutes.
My best guess is that because otg is enabled. The kernel is not able to tell what type of charging type (ac or USB) is connected so it just enables trickle charge as not to cause any problems
Sent from my Nexus 5 using xda app-developers app
Alex240188 said:
Yes but I believe it's something that has to be addressed at the kernel level.
I use a powered USB hub and even though the phone doesn't show any charging animations, going into the battery info screen shows it is charging (though it doesn't say usb or ac, just charging)
from what I have seen it's even less than trickle charge.
USB flash drive mounted.
Screen off
Battery goes up about 1% every 10-15 minutes.
So clearly current is being passed from the hub to the phone. Just not a lot
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
I can confirm this, I use a powered 7 port USB 2.0 hub, and with the original PS: no charging.
Now I took another PS that puts out 2.14-1.7A @ 6-7.5 VDC, and hey presto, charging the phone!
No indicator in the status bar (top screen), but when checking the battery status it clearly states "CHARGING" (see picture OPLADEN 95%)!!
And it charges pretty fast too.....
The mouse is working, as wel as the USB stick is recognized and working!!
The ONLY worry is about the charge....... is 6-7.5 V a battery killer? :fingers-crossed:
Anyone?
Used Voltage and Current Rating details of Power Supply?
dirkzelf said:
I can confirm this, I use a powered 7 port USB 2.0 hub, and with the original PS: no charging.
Now I took another PS that puts out 2.14-1.7A @ 6-7.5 VDC, and hey presto, charging the phone!
No indicator in the status bar (top screen), but when checking the battery status it clearly states "CHARGING" (see picture OPLADEN 95%)!!
And it charges pretty fast too.....
The mouse is working, as wel as the USB stick is recognized and working!!
The ONLY worry is about the charge....... is 6-7.5 V a battery killer? :fingers-crossed:
Anyone?
Click to expand...
Click to collapse
Can you please show the power supply that you are using in the picture? What is the exact voltage you are using 6V or 75.V? And exact current 21.4A or 1.7A?
wicpp said:
Can you please show the power supply that you are using in the picture? What is the exact voltage you are using 6V or 75.V? And exact current 21.4A or 1.7A?
Click to expand...
Click to collapse
I found the rating strange myself as wel, but it is exactly as I mentioned, but since I didn't trust it up ahead, I just went to my basement to see if I had something better, and I found a 5V 2A.
That should be OK, right?
Can you tell the result of using 5V 2A Power Supply.
dirkzelf said:
I found the rating strange myself as wel, but it is exactly as I mentioned, but since I didn't trust it up ahead, I just went to my basement to see if I had something better, and I found a 5V 2A.
That should be OK, right?
Click to expand...
Click to collapse
Yes 5V 2A seems write but I still can not give you any guarantee it might blow your device so do it at your own risk
If you can do this, then please tell how the charging speed is going along OTG use on 5V 2A?
wicpp said:
Yes 5V 2A seems write but I still can not give you any guarantee it might blow your device so do it at your own risk
If you can do this, then please tell how the charging speed is going along OTG use on 5V 2A?
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Click to collapse
Here are the pictures of the PS specs. Hope it clears your question? Pls let me know.
it may be interesting to read this forum / info on 2A charging of the nexus 5...... :
http://forums.androidcentral.com/google-nexus-5/331746-2a-charger-nexus-5-a.html
wicpp said:
Yes 5V 2A seems write but I still can not give you any guarantee it might blow your device so do it at your own risk
If you can do this, then please tell how the charging speed is going along OTG use on 5V 2A?
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Click to collapse
Alright, from 84% tot 97% in 90 minutes.....
That is connected with micro usb otg cable to powered (5vdc 2a) USB hub and with the screen on.
Sent from my Nexus 5 using xda app-developers app
May be we can use fix Voltage and AMP output adapter
dirkzelf said:
Alright, from 84% tot 97% in 90 minutes.....
That is connected with micro usb otg cable to powered (5vdc 2a) USB hub and with the screen on.
Sent from my Nexus 5 using xda app-developers app
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Click to collapse
May be we can use fixed output voltage and amp adapter just like the following
http://www.amazon.co.uk/2000mah-Ada...ds=5V+2A+2000ma+AC+Power+Adapter+Wall+Charger
I know it is up to the device (Nexus 5) that how much load it will put on the adapter to consumer out of 2000ma or 2A. On the other hand I have read somewhere that even most 2000mA USB Chargers just give 500mA in the beginning and due to some data pins activity they start generating 2000mA. If this is the case then Nexus 5 will force only 500mA or so from the charger that it is not compatible with. If we use some adapter that generates constant 5V 2000mA irrelevant of communication on data pins like the ones with 3.5mm pin which does not have any data pins, at least we are guaranteed that, at least full power is coming out of the adapter at all times.
wicpp said:
May be we can use fixed voltage and amp adapter just like the following
http://www.amazon.co.uk/2000mah-Ada...ds=5V+2A+2000ma+AC+Power+Adapter+Wall+Charger
I know it is up to the device (Nexus 5) that how much load it will put on the adapter to consumer out of 2000ma or 2A. On the other hand I have read somewhere that even most 2000mA USB Chargers just give 500mA in the beginning and due to some data pins activity they start generating 2000mA. If this is the case then Nexus 5 will force only 500mA or so from the charger that it is not compatible with. If we use some adapter that generates constant 5V 2000mA irrelevant of communication on data pins like the ones with 3.5mm pin which does not have any data pins at least we are guaranteed that at least full power is coming out of the adapter at all times.
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Click to collapse
I am given to understand that it has nothing to do with the "intelligence" of the charger, but with basic electrical principles.
That would imlpicate that if a device requires 500 mA, the charger will supply 500 mA, if the device would require 3000mA, then it would supply 2000 mA, being it's maximum current (flow).
As far as I know, a powersource ONLY generates a flow (Amps) up to it's maximum limit, if it is connected to a consumer (device). No connected device / consumer leaves no flow to be generated.
Please correct me if I'm wrong.
Added to my little test earlier today: The phone didn't get hot, at most it would be slightly less cool..... for the PS the same.

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