Nexus 7 very slow to charge? - Nexus 7 Q&A, Help & Troubleshooting

Hello everyone, I have a new nexus 7 and love it, but it seems to take way too long to charge. After a full discharge, my tablet takes more them 24 hours to charge. I have drained my battery twice to the point that my nexus powers off. Then I plug in, some back after more then a nights rest and still not fully charged? Not sure what'd going on, but this does not seem normal....
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criminal666 said:
Hello everyone, I have a new nexus 7 and love it, but it seems to take way too long to charge. After a full discharge, my tablet takes more them 24 hours to charge. I have drained my battery twice to the point that my nexus powers off. Then I plug in, some back after more then a nights rest and still not fully charged? Not sure what'd going on, but this does not seem normal....
Sent from my DROID BIONIC using xda app-developers app
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are you plugging it in a usb or a wall charger? usb will take much longer.

I am using the wall charger adapter and cord which came with the nexus...
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criminal666 said:
I am using the wall charger adapter and cord which came with the nexus...
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try a different outlet or a different charger? to make sure its not the n7 that's having an issue.

Great idea! I should have thought of that, now I feel like a retard....lol
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I'm in the same boat. It makes no sense. I've called Google Play support once already because it randomly died at over 30%. This last time I was using it I was at I assume over 20% since the battery level wasn't red and then it made the noise that battery was low and then turned off. What is the proper way to calibrate a battery since there are 90 million different ways if you search Google. I am running stock, rooted 4.1.1 btw. The last person's suggestion and lols following are not uncommon nowadays on xda, we just need some real solutions, thanks.

I feel my Nexus 7 is slow to charge, but it does do so overnight.
When plugged in to the charger and cord provided by google/asus, under Settings/Battery it says it is charging(AC), though once it did say charging (usb).

Related

Nexus s battery recharge time

I was wandering if its only my nexus s(i9023) takes upto 3 to 4 hours to charge.
Sent from my Nexus S using XDA App
same here, up to 3-4 hours, which is quite much
The charge time is quite ridiculous
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You can use a different charger - the one that comes with the Evo is 1.0A, not the 750ma that comes with the Nexus. Still - the Nexus is way too slow, but this helps.
I hope this is not the case. I just purchased the Nexsus S last night and i like guick charging while in the car. The iPhone 4 I have been using charges very quick. I am using a 2.1 AMP car charger. Right now I'm at 82% and charging so will see how long it takes to get 100%
Sent from my HTC Flyer P512 using XDA Premium App
Since my last post, battery has gone up 85% charged. I just disconnected to grab some lunch.
Sent from my Nexus S using XDA Premium App
Check whether your phone is charging in AC mode or USB mode when charging with the car charger. If it is slow, I suspect it's charging in USB mode.
I have Galaxy Tab 7. Will that charge faster since the Tab has a bigger battery and hence a more powerful charger?
Sent from my Nexus S 4G using Tapatalk
I believe the SGT 7 charger is a 5v charger, which is the same as the Nexsus S charger with 0.7A.
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Buy a battery charger. I like the one from Samsung. There are also many aftermarket options.
So lovely to come home and pop in a fresh battery.
rican408 said:
Buy a battery charger. I like the one from Samsung. There are also many aftermarket options.
So lovely to come home and pop in a fresh battery.
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Might do that. Saw on eBay, 2 1500mah batteries and charger for 9.99. Only thing is they take forever to ship from Hong Kong.
Sent from my Nexus S 4G using Tapatalk
ElCamino said:
I believe the SGT 7 charger is a 5v charger, which is the same as the Nexsus S charger with 0.7A.
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Actually, i just took a look at my Galaxy Tab 7" charger and the output is 5V 2.0A. It's not the same amperage as the Nexus S, but higher. Should definitely charge faster then.
I use a 1 amp Pre cylinder charger.
No idea how long it takes; so far have only charged overnight with the occasional USB cable top-up.
Not sure if I'd try something pushing 2A though...
Sent from my Nexus S 4G using Tapatalk

Backlight started flickering after being plugged into Motorola charger

I charged the phone in my car for about 10 minutes today with no issues. When I got home and went to bed, I plugged the phone into my charger that I've used forever; a Motorola charger that originally came with my wife's old BlackBerry. I use it because the cord is about 5ft instead of 3 which seems to be the norm these days.
I didn't look at the phone again for about 20 minutes. When I did, I noticed that the backlight was flickering like crazy and that the edges of the screen were bleeding. When I unplugged it to get a closer look, I freaked out. Over the next few minutes, the flickering went away and the bleed disappeared. I couldn't even get a picture or video of it. I got the OEM charger out of the box and am using it now with no issues.
Weird.
You were using a charger for another phone? Wow man, never do that.
sent via xda premium with nexus 7
Do you happen to have daydream on?
Sent from my Nexus 7 using xda app-developers app
My phone flickers from bright to dim when I use my car charger. Most likely the cord's teeth to hold it in the phone are worn out/flush against the head of the charger. Replace the old cord with a new one and it should be fine.
Motorola Photon 4G
Richieboy67 said:
You were using a charger for another phone? Wow man, never do that.
sent via xda premium with nexus 7
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I knew that would be the first reply. Typical XDA.
Richieboy67 said:
You were using a charger for another phone? Wow man, never do that.
sent via xda premium with nexus 7
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I do that with every phone I've had with no problem. I have random chargers plugged in all over my house and I use other people's chargers at work too
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http://addictiontogaming.com/stuff/stephen/2011-11-21 21.25.01.jpg
It kind of looked like this but about 5x as intense. Not my photo.
Probably something to do with heat, as you were using a different charger.
Nexus 4 is glass after all, so it generates even more heat.
Well you have been lucky if you just use any charger around unless you are sure they are the correct voltage etc. They are all probably similar though seeing as they use the port that plugs into a USB. Still I wouldn't do it across manufacturers.
sent via xda premium with nexus 7
lowrider262 said:
I do that with every phone I've had with no problem. I have random chargers plugged in all over my house and I use other people's chargers at work too
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so do i lol, i had a super long blackberry one but i gave it to a guy when i sold my n9 :/
I am sure they are all close but it is still taking a chance and will void your warranty for sure unless you lie about it..
sent via xda premium with nexus 7
I always use different chargers. Mine are a mish mash of all kinds. They all usually output 5v and 1Amp or there abouts.
Living room - Sony charger with blackberry USB cable.
Living room - playbook charger
Bedroom - HTC charger with archos USB cable
Kitchen - Samsung charger
Work - HTC charger with Nokia USB cable
The playbook charger outputs 2Amps and that is fine too.
The only charger I have ever had and issue with on any phone is an LG one I got with an optimus 2x. That used to cause BSOD even on the LG.
Whether it voids your warranty or not, they would never be able to tell what charger you had been using.
Sent by Galaxy Note
imtiax said:
Probably something to do with heat, as you were using a different charger.
Nexus 4 is glass after all, so it generates even more heat.
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glass itself does not generate heat
Same thing happened to me, except on the stock charger but it has something to do with overheating. Mine is recovering, but took a while and is still showing some ghosting.

[Q] Battery charging

Quick question guys from zero to full how long is it taking to charge you're N10?
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SpartanVissepo said:
Quick question guys from zero to full how long is it taking to charge you're N10?
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From my week or so with the device, it's been taking around 5-6 hours for a full charge.
I heard they were releasing a high-voltage Pogo Pin charger soon though, hopefully this will bump the charge time down to 2 or 3 hours
Huggogguh said:
From my week or so with the device, it's been taking around 5-6 hours for a full charge.
I heard they were releasing a high-voltage Pogo Pin charger soon though, hopefully this will bump the charge time down to 2 or 3 hours
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Ok thanks a lot for the answer because that is what its taking for me and i thought that the battery might be damage and i was about to take it to the store. But wow 6 hours thats a lot right.
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SpartanVissepo said:
Ok thanks a lot for the answer because that is what its taking for me and i thought that the battery might be damage and i was about to take it to the store. But wow 6 hours thats a lot right.
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You're welcome my friend. But yeah 6 hours is quite a long time, mostly because they used a micro USB port to charge the device and it doesn't carry much power quickly. I'm looking forward to the pogo charger though
Personally, I haven't timed it as I charge my devices overnight. However, there are a few things to note.
The official Nexus 10 charger is 10W. Most other "phone" chargers are 5W. The device will charge on a 5W charger but very slowly.
Also, if the device is plugged into the official charger and is being used as it's charging, it will charge very slowly. If you are using a 5W charger, the device will actually discharge if you use it while it's plugged in.
The moral of the story: for best performance, use the official charger. I look forward to seeing the magnetic charger on the market.
Sent from my Nexus 10

Using my Nexus S and 7 charger on 4?

Would this be a safe idea it terms of the life of the battery down the road? I also bought a 3rd party car charger.
biggyk said:
Would this be a safe idea it terms of the life of the battery down the road? I also bought a 3rd party car charger.
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I use chargers from various phones. Have used different phone chargers with all my phones. Never had or noticed any problems. I'm sure you will be fine.
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Yes, it's safe. I'm using an old Samsung charger to charge my Nexus. The charger doesn't really matter IMO.
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When using chargers that don’t come with the device, the only difference it can possibly cause is the rate of charging (how fast your device charges).
Just take a look at the milliamp rating on your charger. The N4 comes with a charger that outputs at 1400ma. I found that if I charged my N4 with a charger made for SE Arc, it takes forever to charge which isn’t a surprise since that charger outputs 750ma.
Don’t worry about using a higher milliamp charger on a device that’s rated to charge at a lower rate. The device will only draw what it needs. I’m not sure what’s the maximum ma the N4 will charge at, but let’s assume it will charge at 1400ma maximum. Even if you use a 2A charger, it will still charge at 1400ma.
Even I thot its safe and was using my Nexus 7 charger with the Nexus 4 . everything was fine for a few hours. Then suddenly it froze and the screen started getting weird lines on it .I immediately removed the charger and while the device was rebooting I could notice that the screen had a burn in kinda image on it. It slowly faded away later. Haven't used the Nexus 7 charger since and I've never got the same issue again.
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okay thanks for your answers guys
_KP said:
Even I thot its safe and was using my Nexus 7 charger with the Nexus 4 . everything was fine for a few hours. Then suddenly it froze and the screen started getting weird lines on it .I immediately removed the charger and while the device was rebooting I could notice that the screen had a burn in kinda image on it. It slowly faded away later. Haven't used the Nexus 7 charger since and I've never got the same issue again.
Sent from my Nexus 4 using xda app-developers app
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Did you overheat the phone?
Sfkn2 said:
Did you overheat the phone?
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I don't think so. Cuz I wasn't even using it. It was just lying there most of the time. I switched on the display and was looking at battery monitor widget to check the charging status and then maybe twitter or something and it just froze. Held down the power button for 10seconds then restarted it.
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As a rule of thumb I'd keep then Nexus 4 away from the Nexus 7 charger.
Sent from my Nexus 4
The N7 charger is rated at 2A. I sometimes use it to charge my N4. Most of the time, I use a generic 2A charger. At the office, I use a Samsung 2A charger for my N4. I’ve encountered zero problems.
Truthfully I'm more concerned using a 12v in the car. Any suggestions what I can get?
Sent from my Nexus 4 using Tapatalk 2

Charging Flicker On/Off then Sudden Power Loss, Just a Fluke?

I was charging the phone via the wallport adapter starting around 14%. A few minutes in the charge indicator/icon flicker on and off and I get all these "Low Power" warning spam.
I try to change cables but the phone power level just dropped from about 13% to 0% in less than a minute. After plugging in a different cable the phone is charging fine now.
What exactly happened? My friend mentioned the cable might be damage and something short circuited. Should I be concern about damages to the battery?
Comments are appreciated,
Thank you
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Sounds like your previous charging cable broke.
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I take it you were using the stock charger. It's junk. I replaced mine a few months ago and haven't had an issue.
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Interesting, which adapter are yer using now?
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I had the same problem except my battery percentage never went to 0. The charging would flicker on/off then the battery percentage would slowly go down/stay the same/or charge extremely slowly. I switched to a different charger and haven't had a problem since. The LG one is bad. I'm using the stock LG cable with the new charger now.

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