Disable USB Charging on Nexus 7 - Nexus 7 Q&A, Help & Troubleshooting

Hello everyone, I just purchased a Nexus 7 and I'm very happy with it so far :laugh: but I have 1 little concern that do we have anyway to disable charging when plug in to computer ? I connect my nexus to my pc like a 100 times a day and I'm afraid that's not good for the battery Thanks for reading and have a good day

Charging via your computer is such a low amp that you will be lucky if it can keep up with the charge.
That being said, you can get a data only cable and it won't charge at all if you are really worried about it.
Why are you connecting it so often? I can't remember the last time I even plugged into a computer with mine, I transfer all I need over Wi-Fi.
Sent from my Nexus 7

Related

Does this trickle charge over usb?

I've searched the forum but can't seem to find an answer, so I apologize if this is already answered. I've seen some posts about some chargers working but I want to know if I plug this into my computer with any generic usb cable, will it charge? In the event I'm on the road or break/lose the original cable.
I know it's slower trickle charging, but it would still be nice to know if it works. And if anyone has done it, how long it takes. Even if it's overnight like 8 hrs, that's fine.
I read somewhere that it will charge through USB as long as the screen is off. Thought I'd read it in the Nexus 7 Guidebook but can't seem to find it now. Haven't tried it myself yet.
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Sent from my Nexus 7 using Tapatalk 2
I've had my Nexus 7 connected a via micro-to-standard USB cable to an un-powered USB hub plugged into a 2.0 USB jack on my PC's motherboard. A couple of other things are plugged into the hub, and the Nexus 7 has slowly charged over the course of the evening. When I plugged it in about six hours ago the battery was 64%, and now it's 94%.
Yes, it does. I had it plugged in for awhile, maybe two hours while moving data an stuff, it charged.
Sent from my Nexus 7 using xda app-developers app

Is it possible to use the Nexus 10 to recharge the smartphone?

As the title says, I'd like to do this, use the smartphone as a wifi hotspot for the nexus 10, but since the hotspot drains the battery heavily, and its likely that when ill turn the tablet on, the smartphone has already been on for many hours, id like to know if it would be possible to connect the two with a cable, so that the smartphone gets some power from the tablet's battery, thus prolonging the smartphone's battery life for the day.
Thanks all!
No, I tried with my nexus 7 and it would not turn on for 3 hours
Nuclearcodes said:
No, I tried with my nexus 7 and it would not turn on for 3 hours
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Click to collapse
What the phone you charge ?
It may work with an OTG cable so the tablet is pumping juice and not receiving..
Back in the day my XOOM could power a 2.5" WD Passport HDD, or charge my HTC Desire. Got rid of it before I could test it on my SGS2 and SGS3 and Galaxy Note though.
Sent from my GT-I9300 using Tapatalk 2
Will the nexus 10 support otg? I heard that otg support for the nexus 7 is somewhat limited or something...
I'm using the OTG cable for connecting my hard drive (powered) and ps3 control pad to it. Works perfectly fine
Nexus 7

Nexus 4 - Xbox 360 charging problem

Hi guys,
currently having a problem with my xbox 360 charging my Nexus 4...
basically i put my nexus on charge (usb cable from xbox 360) over night and it clearly said its charging, so i woke up the next morning and the battery % was as i left it, but it still clearly says charging? this has happen to me twice this week... has anyone else had a problem like this?
forgot to mention, i have always charged my mobile devices using the xbox 360 and never had any problems before...
Maybe try other cables?
I have had similar issues with phones in the past where certain cables worked and some didn't.
accidently gave u a thx I had this problem with all my phones trying to charge them with my PS3 or PC. With my PS it charged 1-2% and with my PC a bit slower than normally. I think its the bad electricity supply over usb
jmcsk8 said:
Maybe try other cables?
I have had similar issues with phones in the past where certain cables worked and some didn't.
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Click to collapse
i'm currently charging right now on work laptop with same cable and its charging fine?
bustem said:
accidently gave u a thx I had this problem with all my phones trying to charge them with my PS3 or PC. With my PS it charged 1-2% and with my PC a bit slower than normally. I think its the bad electricity supply over usb
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Click to collapse
true, it could be... but i charge my samsung galaxy s2 using same method and that charges up fine without problems...
I have no problems with my 360'
But why would you keep your Xbox running at night to charge your iPhone??
Better use a wall charger. It charges faster, and is cheaper..
Sent from my GT-I9300 using xda app-developers app
Davanzze said:
I have no problems with my 360'
But why would you keep your Xbox running at night to charge your iPhone??
Better use a wall charger. It charges faster, and is cheaper..
Sent from my GT-I9300 using xda app-developers app
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weirdly i dont leave the xbox on... the usb ports are still live when it is switched off and because of that reason, i use it to charge my phone.
PS its a Nexus not an iPhone lol
killa_byte said:
weirdly i dont leave the xbox on... the usb ports are still live when it is switched off and because of that reason, i use it to charge my phone.
PS its a Nexus not an iPhone lol
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Click to collapse
kk, haha i know its not an iPhone, but my swype made phone into iphone
killa_byte said:
Hi guys,
currently having a problem with my xbox 360 charging my Nexus 4...
basically i put my nexus on charge (usb cable from xbox 360) over night and it clearly said its charging, so i woke up the next morning and the battery % was as i left it, but it still clearly says charging? this has happen to me twice this week... has anyone else had a problem like this?
Click to expand...
Click to collapse
I had similar issues while charging through my laptop, My phone would say charging, meanwhile it would be discharging
I think it has to do with the phone using more power than the port is giving out. Basically some apps you have one your phone is using so much battery that the charger is not charging because the required power to run the phone is greater than the charge is giving. I'm thinking this is becasue the phone has so much RAM that all the background apps are using more and more power. It's like charging a Laptop through your Xbox USB port, the laptop uses WAY too much power for it to be getting charged through a measly USB port.
Nonetheless, I stopped charging my phone through my laptop and just plugged it in the wall. It charges way faster anyway (my charging usually takes 2 hours when it's really low to full battery)
Even if it does charge, it's not likely to charge well; the Nexus 4's charger is 1.2 amps. The Xbox USB ports likely put out less than half that. Unless you have an S model, in which case the rear "Kinect" port is "high-powered," which likely means 1.0 amps.
I'm charging off my AirPort Extreme without issue...albeit it slow. Since I charge at night, it's a non-issue. OP, have you tried swapping USB cable?
Does the Xbox 360 temporarily disable its USB port if you try to pull to much power from them?
The Nexus 4 requires more than what is supplied...
uberSlackr could be right, normal usb ports are 5volts,500mah, so 5 volts standby, you should be able to charge even at a slow rate, windows 7 has an option to turn off usb ports to save power unless you disable it.maybe xbox has a similar power saving function.
samsung s2 max charging rate is at 650mah, my nexus charger is 1.2amps, so 1 amp draws too much.
tibere86 said:
I'm charging off my AirPort Extreme without issue...albeit it slow. Since I charge at night, it's a non-issue. OP, have you tried swapping USB cable?
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yes, i've tried changing the cable and its the same... i believe the comments above have explained it much clearly to me and make me understand why its not charging (xbox usb being 500 mah and the phone needs 1.2 amp... so looks like i will have to use my wall charger from now on)
i appreciate the help guys!! :good:

[Q] Nexus 7 will not charge

my nexus7 will not charge until it has completely drained....
I am aware of the current battery problems, but mine is a bit different....
Even after going to bootloader and choosing power off my nexus will sit on charge (wall) overnight and be dead in the morning, even though it was at 30% when plugged in....
The only way to charge it seems to be off my laptop. but even then it takes over a full day to charge.
If i hook up to laptop while runing it basically only slows down the drain but still doesn't charge up....
this is very frustrating, and i'm at my ropes end
would dowgrading to an older rom take care of this issue?
whasty said:
my nexus7 will not charge until it has completely drained....
I am aware of the current battery problems, but mine is a bit different....
Even after going to bootloader and choosing power off my nexus will sit on charge (wall) overnight and be dead in the morning, even though it was at 30% when plugged in....
The only way to charge it seems to be off my laptop. but even then it takes over a full day to charge.
If i hook up to laptop while runing it basically only slows down the drain but still doesn't charge up....
this is very frustrating, and i'm at my ropes end
would dowgrading to an older rom take care of this issue?
Click to expand...
Click to collapse
No solution, I'm afraid, I'm chiming in to say that I have also been having problems since the same time. For two days, I have been trying different combos of chargers, cables, and outlets, to see if other equipment is the problem. But all of it works fine with my Nexus 4. Mostly, I am experiencing that the unit says "charging" but the battery level is going down instead of up. I managed to get a full charge overnight by using an external battery that I got just for this type of emergency backup. After use, it is back down. This morning, third cable I tried finally seems to be working, for now. In 40 minutes it went from 63% to 65%. I am somewhat relieved but this situation is not normal.
I'm going to start reading through the forum to try some suggestions. I wasn't paying attention to updates. Has this problem been triggered by a recent update?
I understand some suggestions call for letting the battery discharge entirely. It seems that won't be hard to do. I can leave it plugged in and, as happened with most of the cables I tried, the battery level will go down to zero pretty fast. I'm really annoyed, but very happy right now that I splurged on an external battery.
Have you tried a new charging block... That would more that likely be your culprit.
Sent from my SPH-D710 using xda premium
I have used 4 blocks
Unless the tablet is killing the charger it is certainly the tab
Sent from my Nexus 7 using Tapatalk HD
whasty said:
I have used 4 blocks
Unless the tablet is killing the charger it is certainly the tab
Sent from my Nexus 7 using Tapatalk HD
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Check your port for bent pins.
Sent from my Nexus 7 using xda premium
I used three different chargers plus the external battery. Two of the chargers have two inputs (i.e., for Apple and non-Apple products). I have five different charging cords, longest is 6 ft and the others much shorter (two are from Monoprice), and one retractable I usually use in the car. I tried every combination I could think of between chargers, cables, input ports, and several different electrical outlets at two locations.
All the various combos functioned fine with my Nexus 4, the other device I have with me. None of them worked with the Nexus 7. All showed as "charging", but they weren't. In some cases, the numbers were going down quote rapidly. Goes without saying, when you're charging, it shouldn't go from 64% to 59%.
The thing that finally worked - with no hiccups - was the external battery. Since everything worked on the Nexus 4, it's quite apparent the problem is the Nexus 7.
Having said that, by this morning, things inexplicably changed for the better. With the device at around 70%, I connected one of the chargers and it functioned normally. Battery filled up within the normal timeframe. I was using it intermittently while charging, as I often do.
I'm glad it's working and very glad I have the external battery that can fill up both the Nexus 4 and Nexus 7 in a pinch. But I still think there's something wrong with the Nexus 7, and I'm not knowledgeable enough to dare try some of the more technical suggestions. Just the term "shorting out the pins" is enough to warn me that I'm not expert enugh to try anything like that. For now it works, I hope it lasts like that until perhaps I can understand the issues a little better.
I'm having the exact same issue as you guys and it has me stumped. On some days it'll work, others it wouldn't. At first I thought I could fix it by rebooting but last night mine just drained all the way down overnight while charging from around 50% and this morning I wasn't having much luck getting it charged using the 2 stock Nexus 7 wall chargers that I have. I'll try using an external that I got recently and hopefully that'll solve the issue for now at least.
Edit: Some people have had luck reversing the polarity on their charging block. I'll give that a go and report back whether it worked for me or not.
Edit/Update: Yup, flipped my brick around so that the big end sticks off the left side and it's at 32% now from 0% after 2.5 hours. You guys might have some luck with this too.
Nexus 7 fails to charge
We have two Nexus 7 in the house, one 11 months the other 6 months old.* The older one stopped charging just before our holiday last month so we took the other. It stopped charging while we were away.* Fortunately my wife had here Samsung Ace [mains] phone charger with her. This worked every time.*
Once home I checked the two Nexus 7 mains units and 2 Nexus 7 usb cables. No combination would charge either Nexus 7.* The Samsung mains charger would always charge both Nexus 7.
Solution:* Suspicious, I ordered an Asus Nexus 7 cradle while we were away. Any combination of Nexus 7 mains unit and usb cable charges both Nexus 7s on the cradle.
Conclusion: The USB socket on the Nexus 7 cannot take repeated insertion and removal of the cable.
Hope this may help somebody.
Yea I had the EXACT same story as you. I had for got to take my nexus 7 charger on holiday but I had my Samsung galaxy ace (s5830i) charger so I used that. when I came back and pluged In my charger It said that It wasn't charging so I used my brothers nexus 7 charger but still no good. It said that my brothers nexus 7 was charging but not mine and than I figured out what I had damaged... My nexus 7 charging port. I had proved this by comparing the the 2 charges and they where very different... Luckly It was still under warranty so I took it to (I cant tell you that). I looked all innocent and pretended I was new to this stuff and they then tried to charge it but no use so they replaced it with a new one but now I know not to put different chargers in my new nexus 7 and that goes to people out there as well
Sent from my Nexus 7 using xda app-developers app

Please help mtp transfer will not work no more and tablet charging slowly!!!

Can someone please help me i have a nexus 7 that will only slowly charge now it takes about 6 to 8 hours to charge and now my computer will not display or recognize the tablet at all. I dont know whats going on i have just gotten the tablet bought from swappa last month and the only thing i could think of was using a more powerful amp car charger that could of overheated the port. Does anyone have any ideas or solutions?

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