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I have My Tab plugged in to my PC all day while debugging on it as I develop, unfortunately the fact that the tab somehow and for some reason disables charging while debugging is causing a huge problem for my workflow.
Can anybody suggest a possible solution that will allow me to charge and debug at the same time. My boss may consider allowing me to root the device (I know it's easy, I could do it right now, but it's political) if I know it's the only option.
The power outlet of the USB port isn't enough to charge it, which is driving me nuts too.
If you root it you can use ADB wireless (free app on market) to use adb over the wifi, and have the tab plugged into the wall. Otherwise I don't know. Maybe a hub with it's own power supply **might** do it, but I'm not sure.
TheGrammarFreak said:
The power outlet of the USB port isn't enough to charge it, which is driving me nuts too.
If you root it you can use ADB wireless (free app on market) to use adb over the wifi, and have the tab plugged into the wall. Otherwise I don't know. Maybe a hub with it's own power supply **might** do it, but I'm not sure.
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Thanks, I assumed it was a software check that it's connected in debug and simply disabled.
My boss has agreed to allow me to root it on the basis that I can restore it to factory if required.
Cool beans. Glad I could be of assistance.
TheGrammarFreak said:
Cool beans. Glad I could be of assistance.
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I'm still surprised it's that much of a beast that it needs more power than the USB port can supply, I mean, is it all because of the screen?
The wall charger does 2A
But the specs aren't any higher than my HTC Desire except for the screen and that only needs 1A from the charger and can charge by USB too.
I genuinely have no idea. I'm given to understand that the Tab does charge from USB, albeit slowly. As for why it needs 2A, who knows. Maybe Samsung don't like us using other chargers.
TheGrammarFreak said:
I genuinely have no idea. I'm given to understand that the Tab does charge from USB, albeit slowly. As for why it needs 2A, who knows. Maybe Samsung don't like us using other chargers.
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Click to collapse
Well my Tab doesn't charge from USB unless it's switched off. If it's on, the Battery symbol has a line throgh it, as in "charging disabled".
Yeah, mine does that too. I just use wireless ADB now, so much easier
alias_neo said:
Well my Tab doesn't charge from USB unless it's switched off. If it's on, the Battery symbol has a line throgh it, as in "charging disabled".
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I think you will find that even in those circumstances it is still actually charging, albeit very slowly.
I had my Tab hooked up to my PC last week and when I connected it up it was showing that it wasn't fully charged, and didn't appear to be charging. However, when I disconnected it some time later it appeared to be fully charged.
Perhaps it would be worthwhile downloading JuicePlotter to see what affect, it any, connecting the Tab to your USB port has.
Regards,
Dave
It's not the specs of the device, it's the size and resistance of the battery. It charges slowly over USB, and it charges a much smaller percentage of the battery's capacity than it would with a smartphone.
Easy math, it's over 3x the capacity of your Desire battery, and as you well know, even your Desire battery charges slowly over USB compared to mains.
The larger backlight should consume about twice the voltage of a 3.7" display (rough estimate), so you're barely pushing any charge at all via USB when the display is on, a trickle of a trickle.
Croak said:
It's not the specs of the device, it's the size and resistance of the battery. It charges slowly over USB, and it charges a much smaller percentage of the battery's capacity than it would with a smartphone.
Easy math, it's over 3x the capacity of your Desire battery, and as you well know, even your Desire battery charges slowly over USB compared to mains.
The larger backlight should consume about twice the voltage of a 3.7" display (rough estimate), so you're barely pushing any charge at all via USB when the display is on, a trickle of a trickle.
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Click to collapse
You're right, I probably should have looked into the rating of the Battery in this thing. As an Engineer, the math is trivial.
Still, It appears to me that it's not charging at all, not even trickle, from full charge when I left for work this morning to empty before the end of an 8 hour working day with it plugged in to usb the entire time, slightly disappointing result.
Just as a matter of interest, I installed JuicePlotter and attached my Tab to my laptop and adb'd into the Tab and left it for a while. JuicePlotter definitely shows the battery charge rising, but probably only in the region of 5-10% per hour.
Regards,
Dave
foxmeister said:
Just as a matter of interest, I installed JuicePlotter and attached my Tab to my laptop and adb'd into the Tab and left it for a while. JuicePlotter definitely shows the battery charge rising, but probably only in the region of 5-10% per hour.
Regards,
Dave
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I'll give it a try, where do I find this juice plotter? Market app?
alias_neo said:
I'll give it a try, where do I find this juice plotter? Market app?
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Yes, it's on the Market.
Regards,
Dave
foxmeister said:
Yes, it's on the Market.
Regards,
Dave
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Click to collapse
As a pure matter of interest, and feel free to ignore me; why do you sign all your posts with "regards, Dave"?
TheGrammarFreak said:
As a pure matter of interest, and feel free to ignore me; why do you sign all your posts with "regards, Dave"?
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Cause its the gentalmanly thing to do? lol. Maybe its a sort of signature.
TheGrammarFreak said:
As a pure matter of interest, and feel free to ignore me; why do you sign all your posts with "regards, Dave"?
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Click to collapse
? Same reason you sign all of yours like so?
HTC Legend, CyanogenMOD 6.1 nightly build 44 with 787MHz OC and /system overlay
Gapps for nightlies: (not that you should ever need them)
gapps-mdpi-20101020-signed
gapps-mdpi-tiny-20101020-signed
Please search, and engage brain! Click me!
---------------------
Device 2: Samsung Galaxy Tab, rooted
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TheGrammarFreak said:
As a pure matter of interest, and feel free to ignore me; why do you sign all your posts with "regards, Dave"?
Click to expand...
Click to collapse
What Deafjam said!
Regards,
Dave
This power thing is annoying. I bought a 1 amp car charger USB adapter when I got my HTC Desire as running my satnav software on it otherwise depleted the battery quickly. The 1 amp charger was enough to charge the phone while running the software.
However, if I use it with my Tab, rhe battery is still running down while using the satnav software, although slowly.
If I got a 2 amp car charger adapter, would that solve the problem? Can one buy 2 amp adapters for the car? I don't reallly want to buy the way overpriced Samsung car charger, which isn't even available yet.
EDIT: OK I've found 2 amp USB car chargers are available. Will 2 amp be enough to charge the Tab while running the satnav software?
norm2002 said:
This power thing is annoying. I bought a 1 amp car charger USB adapter when I got my HTC Desire as running my satnav software on it otherwise depleted the battery quickly. The 1 amp charger was enough to charge the phone while running the software.
However, if I use it with my Tab, rhe battery is still running down while using the satnav software, although slowly.
If I got a 2 amp car charger adapter, would that solve the problem? Can one buy 2 amp adapters for the car? I don't reallly want to buy the way overpriced Samsung car charger, which isn't even available yet.
Click to expand...
Click to collapse
I have never seen a 2A car charger but yes, that would do the trick if you found one. I assume Samsung's will be 2A, how much is it to be "overpriced"? A 2A Samsung official car charger is probably worth about £25 I'd say.
I keep getting a red X Through my battery when plugged into my laptop to charge, is this normal? I really dont want to plug into the wall to charge
Really hope this doesn't become the case and that it will charge off of any USB charger...in particular like the one in my car that accepts USB Devices.
My friend has a galaxy and has the same issue, idk if its our laptops or what
Okay this has been address. please search but ill answer for you.
This device uses 5v 2a to charge. Hence the wall unit. you computer is 5v 1a or 1.5a (its not enough)
The device will maintain and in some cases when screen off slowly charge when plugged into computer or usb adaptor with the red "x" through it.
you can find a usb adapter cable which has a switch to allow you to charge while connected to a computer. its a data and charge switch. search for it. i think its on ebay.
also you can find on amazon or google shopping wall chargers for the p1000 which work for like 8$
dsh897 said:
Okay this has been address. please search but ill answer for you.
This device uses 5v 2a to charge. Hence the wall unit. you computer is 5v 1a or 1.5a (its not enough)
The device will maintain and in some cases when screen off slowly charge when plugged into computer or usb adaptor with the red "x" through it.
you can find a usb adapter cable which has a switch to allow you to charge while connected to a computer. its a data and charge switch. search for it. i think its on ebay.
also you can find on amazon or google shopping wall chargers for the p1000 which work for like 8$
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thanks, and thats very disappointing
DroidHam said:
thanks, and thats very disappointing
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its not disappointing at all.what other tegra2 tablet can even trickle charge through USB 2.0?
madsquabbles said:
its not disappointing at all.what other tegra2 tablet can even trickle charge through USB 2.0?
Click to expand...
Click to collapse
My xoom could.
DroidHam said:
My xoom could.
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Click to collapse
my 4 didn't and neither does a bunch of other peoples xooms. even if it did it would only charge at the same rate as the gt10.1 charges - 5 watts. that's the max USB 2.0 spec.
It should be easily solved with a 2 x male 1 x female usb cable
http://ep.yimg.com/ca/I/yhst-19158458583166_2164_10126151
DroidHam said:
I keep getting a red X Through my battery when plugged into my laptop to charge, is this normal? I really dont want to plug into the wall to charge
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Click to collapse
It charges through usb when the tab is powered off.
zaphyr said:
It should be easily solved with a 2 x male 1 x female usb cable
http://ep.yimg.com/ca/I/yhst-19158458583166_2164_10126151
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Where does one buy said cable?
hshah said:
Where does one buy said cable?
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Click to collapse
Depends on your country I guess, I bought mine from Dustinhome.se:
http://www.dustinhome.se/pd_5010312807.aspx
Lou2serious said:
It charges through usb when the tab is powered off.
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even with it on it'll charge slowly.
Those double cables are cheap (around £3 in the UK) so I might pick up a couple of those and leave them at work and in the car
hshah said:
Where does one buy said cable?
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Click to collapse
http://cgi.ebay.com/New-USB-2-0-Fem...871?pt=LH_DefaultDomain_0&hash=item27ba21e847
Having this Y-cable will also help with the fact that the USB cable that came with the tablet is so sort. I have a lot of 5V power supplies around but they are all from 50ma to 1a. Can't believe this thing needs to much power to charge, I would think that 1a would be enough just to maintain it when in use.
OK, I got a couple Y/Split cables and I still have red X when plugged into two USB ports, I even tried two ports that are on different controllers... as well as two USB3 ports in my laptop. I even tried my desktop. No luck.
Has anyone gotten this to work?
I posted in the accessories section about this subject, see here;
http://forum.xda-developers.com/showpost.php?p=14890063&postcount=16
and here;
http://forum.xda-developers.com/showpost.php?p=14922116&postcount=27
The red x will show up if you are charging with anything under 2A. If I remember correctly usb 1 puts out 100ma and usb 2 & 3 put out 500ma. Even with a Y adapter you will only get 1A. If the screen is off then you will charge the battery however with the screen on, you are using the same amount of power that the usb is providing. Therefore the x because the battery is not charging.
Sent from my GT-P7510 using XDA Premium App
ericlmccormick said:
The red x will show up if you are charging with anything under 2A. If I remember correctly usb 1 puts out 100ma and usb 2 & 3 put out 500ma.
Sent from my GT-P7510 using XDA Premium App
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Click to collapse
With the adapter I posted about above, I never see the red x and I am charging off USB 2.
-EDIT-
To be clear, I am using a 10.1v not a 10.1 - there could be differences, but I doubt it.
Hi there... is there any other way to charge tab 7+ battery beside using it's own plug head? can't it be recharged by plugin the usb cable to pcs like any other phone? Thanks in advance!
nolane said:
Hi there... is there any other way to charge tab 7+ battery beside using it's own plug head? can't it be recharged by plugin the usb cable to pcs like any other phone? Thanks in advance!
Click to expand...
Click to collapse
Yes it can, but you'll only get a trickle charge from a PC with Samsung products.
meaning i can't charge it in the car as well is it?
nolane said:
meaning i can't charge it in the car as well is it?
Click to expand...
Click to collapse
Yeah, sure, but you'll need a usb charger for the lighter and it will probably only trickle charge.
There's an adaptor that you can get that modifies the connections specifically for Samsung products so they get a full charge from USB sockets that aren't the charger. I've had a look on ebay buy can't find one. I got one just for a couple of quid, so if you can find one of them then it'll solve the trickle issue.
I'll keep looking and see if I can find it for you - you do the same
Edit: Found it... http://goo.gl/3iqI1
I charged via USB from my PC this night. It went from around 25% to 99% in 8 hours. So it's charging, but not too fast.
It is a 7.7 forum not 7 plus and about the problem the device is actually charging from usb but not showing, turn your device off while connected to pc and you will see yourself
Sent from my HTC HD2 using XDA App
It all depends on the charging current. A USB port only provides a maximum of 500mA whereas the Samsung charger provides up to 2000mA (2A). That's the reason why every tablet out there comes with its own propietary charger.
Turning the tablet off is the best you can do when charging via USB.
Sent from my GT-P6800 using XDA App
There are motherboards with 1Amp USB ports, mine has one but it charges the device at a very very slow rate!
Any idea why I can't seem to charge my Nexus 7 with my car charger?
i have both a generic Micro USB charger and I have one of the dual USB ports that you put into the cigarette lighter. It wont even acknowledge that I have plugged anything into it.
i have used the USB port to charge MANY different cell phones my old Dell Streak 7 and even a friends iPad.
Any ideas?
joeclark said:
Any idea why I can't seem to charge my Nexus 7 with my car charger?
i have both a generic Micro USB charger and I have one of the dual USB ports that you put into the cigarette lighter. It wont even acknowledge that I have plugged anything into it.
i have used the USB port to charge MANY different cell phones my old Dell Streak 7 and even a friends iPad.
Any ideas?
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Click to collapse
I think the N7 needs 2A to charge. a single USB is 500 mA and the dual 1A, so I don't think there's enough power.
Also check if the output of your microUSB cigarette charger is 2A
zaphyr said:
I think the N7 needs 2A to charge. a single USB is 500 mA and the dual 1A, so I don't think there's enough power.
Also check if the output of your microUSB cigarette charger is 2A
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Click to collapse
well i think that answers my question. thank you
This one will work: http://www.amazon.com/gp/product/B0090SVY3K/ref=oh_details_o02_s00_i00
It charges at the same rate as the stock AC charger.
The N7 is one picky device for charging. I have several chargers for the car that charge the iPad but not one will charge the N7. Same as AC chargers. This set works for me
http://www.amazon.com/dp/B008FF84K0/ref=pe_175190_21431760_M2T1_ST1_3p_dp_1
This is what I use and it works just fine. I use it to charge my N7, GNote, Nook Color or my grandsons IPhone and it works equally well on all of them.
BTW, it prime available if you are a member.
dparrothead1 said:
This is what I use and it works just fine. I use it to charge my N7, GNote, Nook Color or my grandsons IPhone and it works equally well on all of them. Very unobtrusive and I like the fact that the fuse is easily accessable.
http://www.amazon.com/Ultra-Compact...sr=8-2&keywords=ultra+compact+usb+car+charger
BTW, it prime available if you are a member.
Click to expand...
Click to collapse
That is exactly what I need to get.
Thank you.
Sent from my Nexus 7 using Tapatalk HD
It only charges via usb when the screen is off or when the device is off. Try plugging it in checking the battery % leave it awhile and then recheck the battery % you may find its gone up!
Sent from my GT-I9000 using xda app-developers app
Hey guys,
I just plugged my note 4 into my car charger (anker charger, oem note 4 cable) and couldn't get it to charge. It charges my note 3 no problem.
I also have no problems charging my note 4 with wall chargers.
Any help?
I've got the "Anker® 18W / 3.6A Car Charger with Built-in Micro USB Cord for Android" and it's actually CHARGING my Note 4 when using GPS navigation and playing music! My Note 2 wouldn't charge, but it would hold charge under the same conditions.
What model charger are you using?
EP2008 said:
I've got the "Anker® 18W / 3.6A Car Charger with Built-in Micro USB Cord for Android" and it's actually CHARGING my Note 4 when using GPS navigation and playing music! My Note 2 wouldn't charge, but it would hold charge under the same conditions.
What model charger are you using?
Click to expand...
Click to collapse
I actually can't find it on the charger itself or even Amazon. It's relatively new, I thought it was a 2.0/2.1 amp charger (2x USB). Definitely Anker though.
clanderson said:
I actually can't find it on the charger itself or even Amazon. It's relatively new, I thought it was a 2.0/2.1 amp charger (2x USB). Definitely Anker though.
Click to expand...
Click to collapse
Are you using both usb's at the same time? If so, it's splitting the power, so you'll get a slow charge.
EP2008 said:
Are you using both usb's at the same time? If so, it's splitting the power, so you'll get a slow charge.
Click to expand...
Click to collapse
Sorry, I should have specified - the only thing plugged into the charger is my Note 4.
Shoot, maybe I just need to grab another charger. Thought I made a good decision with that Anker.
Thanks for your reply by the way
clanderson said:
Sorry, I should have specified - the only thing plugged into the charger is my Note 4.
Shoot, maybe I just need to grab another charger. Thought I made a good decision with that Anker.
Thanks for your reply by the way
Click to expand...
Click to collapse
If you get the one I listed, it works for sure. Great charger and it's been the only one my wife hasn't been able to destroy. :laugh:
Will the car charger also do the 50% in 30min charging ?
ilordvader said:
Will the car charger also do the 50% in 30min charging ?
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Doubt it. You need a special charger for that.
Sent from my SM-N910U
EP2008 said:
Doubt it. You need a special charger for that.
Sent from my SM-N910U
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Click to collapse
Do you know if there's one available that will do that as of right now?
Costas86 said:
Do you know if there's one available that will do that as of right now?
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Click to collapse
No idea, but if there were to be one, I'd imagine that Samsung would have it first.
EP2008 said:
No idea, but if there were to be one, I'd imagine that Samsung would have it first.
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Click to collapse
Hmm.. this mentions rapid charging, I wonder if it's as fast as the wall charger
http://www.samsung.com/us/mobile/cell-phones-accessories/ECA-U21CBEBXAR
The only chargers that work with the new fast charging technology are ones that are purpose built and have the ability to switch between 9V and 5V,they are quite uncommon.
I have this charger http://www.amazon.com/gp/product/B00D82O68Y/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1
and it charges my note 4 while running Waze and tethering my Radar Detector via Bluetooth (which also uses GPS)....and it charges my wife's S5 at the same time
Using an afer market 2.1a charger and an S3 cable, charges just fine.
ilordvader said:
Will the car charger also do the 50% in 30min charging ?
Click to expand...
Click to collapse
EP2008 said:
Doubt it. You need a special charger for that.
Sent from my SM-N910U
Click to expand...
Click to collapse
I believe Samsung has stated it's a 9v charger instead of the conventional 5v charger.
Did some more research and found this:
http://www.incipio.com/chargers/car-chargers/quick-charge-2-0-single-port-usb-charger.html#
From the Engadget review, "I clarified with Samsung that it chose a proprietary solution instead of licensing Qualcomm's QuickCharge tech, but it insisted that you could still use QuickCharge 2.0-compatible chargers to achieve the same results."
Also from http://www.samsung.com/sa_en/support/skp/faq/1063730?CID=AFL-hq-mul-0813-11000170
[FAQs] Smart Phone : Galaxy Note 4- To use fast charging, what kind of charger should be used?
Fast charging uses battery charging technology that charges the
battery faster by increasing the charging power. The Galaxy Note 4
device supports Samsung’s Adaptive Fast Charging feature and
Qualcomm Quick Charge 2.0.
To use Fast charging on your device, connect it to a battery charger
that supports Adaptive Fast Charging or Quick Charge 2.0.
Hope that helps someone, credit goes to the users over at http://forums.androidcentral.com/sa...-charger-supports-fast-charging-note-4-a.html