Database Users

My Nexus 7 literally takes hours to charge

My Nexus 7 battery takes forever to charge. And this is even when I use my stock cable to the wall charger. I know it takes around 3-4 hours to charge it from dead to full but for some reason mine is only HALFWAY full at the 4 hour mark and I usually have to leave it on the charger the whole night/day for it to be fully charged.
I have no other defects on this product except for this one. And I never dropped it or anything and I'm currently running 4.1.2.
Please help. I know I can't be the only one with this problem.

Definitely use the oem charger (2 Amp compared to 500-850 ma for most) and the supplied USB-3 cable. It will charge faster. After the long initial charge up to 100% mine has been charging pretty well. If I'm down around 10% it can take up to 4 hrs to charge, but the battery is huge compared to most phones. It sounds like something isn't working normally for you. Have you tried turning it off, then charging?

Yes sorry I was unclear in the original post. I'm using everything stock when I charge my Nexus 7. I don't use any other cable. And yes I completely turn it off when I'm charging but yet it still charges horribly slow.

I would test another comparable charger just to make sure it's not the charger or cable itself.

There is a lot of threads that talk about the charger and the possible ones you can & can't use (Nexus 7 is picky). I use a HP Touchpad USB plug and a cable. It does the job well :good:

Saturny said:
There is a lot of threads that talk about the charger and the possible ones you can & can't use (Nexus 7 is picky). I use a HP Touchpad USB plug and a cable. It does the job well :good:
Click to expand...
Click to collapse
+1
I use the HP touchpad charger, Playbook charger and KFHD charger. All three of those get the job done fast.
With those three, I don't even need to use the N7 charger lol
Sent from my Nexus 7 using xda app-developers app

Do you keep it on while you're charging it? If so that will definitely make it take longer to charge since it's using power.

Nope.
brando56894 said:
Do you keep it on while you're charging it? If so that will definitely make it take longer to charge since it's using power.
Click to expand...
Click to collapse
I keep mine on, so I can check the % on screen. And long as you don't use it while it's charging, it won't take longer.

Trust me I keep everything that I charge off so that it can charge faster and not be using any power while charging. It seems no one else has gone through this from this thread though. It sucks that I have to get a new charger when the stock charger should be still working fine and perfectly.

As far as i have read the informations on / in box. It said to use the OEM charger only. I didn't really measure time when charging, but it always took maybe 2-3 hours max to charge the device completely.

Try blowing out your micro port with compressed air, had this on my galaxy2
Sent from my Nexus 7 using xda premium

I use a Samsung charger with the usb cord, i for a USA charger.. Mine also uses hours... Good to know IT Will charge netter with others
Thnx
Sent from my Nexus 7 using xda app-developers app

Nexus 4 charging (USB) when plugged into wall?

Hey guys, noob here. Tried to thoroughly research this issue before posting but I cannot figure it out. When I first got the phone I fully charged it with the wall charger and it charged at normal speed and when I went to the battery menu it said charging (AC) Later on I plugged it into my computer so that I could put some music on it and ever since then when I plug it into the wall it says charging (USB) and its slow as hell to charge. Basically unusable for day to day use. So far I have tried multiple chargers, factory resets, and restarting the phone with the charger plugged and unplugged. Also, when I plug the phone into the computer now it just charges and does not show up as a device or anything. I have contacted Google about a replacement, but god knows when I will get one. Any help would be greatly appreciated!

I'm charging my phone for the first time on my PC and it's taking forever also.

cole631 said:
Hey guys, noob here. Tried to thoroughly research this issue before posting but I cannot figure it out. When I first got the phone I fully charged it with the wall charger and it charged at normal speed and when I went to the battery menu it said charging (AC) Later on I plugged it into my computer so that I could put some music on it and ever since then when I plug it into the wall it says charging (USB) and its slow as hell to charge. Basically unusable for day to day use. So far I have tried multiple chargers, factory resets, and restarting the phone with the charger plugged and unplugged. Also, when I plug the phone into the computer now it just charges and does not show up as a device or anything. I have contacted Google about a replacement, but god knows when I will get one. Any help would be greatly appreciated!
Click to expand...
Click to collapse
Bro, the PC USB output is much less than 1.2 ampere output provided by the wall charger.... Lessee ampere means slow charging.... Charge with wall charger
Sent from my Nexus 4 using xda premium

Sounds like there is a setting for the USB connection like with the HTC Flyer where you tell it the kind of connection you want to use. Whether you want connect to pc or charge only. For the Flyer it will charge a little when connected to a computer but if you want to just charge it via the wall charger you need to select charge only.

Gluttony666 said:
Bro, the PC USB output is much less than 1.2 ampere output provided by the wall charger.... Lessee ampere means slow charging.... Charge with wall charger
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Did you even read his post? The phone thinks its charging over USB when its plugged into the wall and is charging slowly. Something is definitely wrong.
Sent from my Nexus 4 using xda app-developers app

Gluttony666 said:
Bro, the PC USB output is much less than 1.2 ampere output provided by the wall charger.... Lessee ampere means slow charging.... Charge with wall charger
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Sorry I guess I should have phrased better, I am aware that USB charging speeds are way slower but the issue is that when plugged into a wall charger, the phone thinks it is charging through USB and charges ridiculously slow.

Is this happening with the charger and cable that came with the phone? If so, I'd try to RMA it. Google should have stock to cover warranty purposes.

Stryder5 said:
Is this happening with the charger and cable that came with the phone? If so, I'd try to RMA it. Google should have stock to cover warranty purposes.
Click to expand...
Click to collapse
Yep. Happening with the stock charger any every other one I have tried. Got an rma for it and the shipping estimate was the 25th but now it switched to pending. Don't know if that is good or bad

Try a factory reset, settings > backup & reset > factory reset. Missed it in your original post but it wouldn't hurt to try it again if you're gonna RMA it.
Sent from my Nexus 4 using Tapatalk 2

Get a multimeter. Check for continuity on the middle two contacts of the USB charger. (While unplugged)
You should have continuity. If you do, blame the phone. If you don't, blame the charger.
Sent from my Nexus 4 using Tapatalk 2

My nexus4 yesterday have the same error, only charge USB mode (original 1.2a , sony 1,5a and samsung 1.0a chargers) but today charge AC mode
May be when is hot only charge in USB mode?

Thanks guys, I guess I will try out the multimeter thing and report back. Finally got a full charge into it over night so maybe that was all it needed. I will report back with any solutions I find in case anybody else develops this problem.
Sent from my Nexus 4 using xda app-developers app

Now my nexus start charging AC mode and then, randomly change to USB mode.
When the device is wireless charging on what mode is, USB or AC?
Sent from my Nexus 4 using xda app-developers app

Mine says USB right now. It must be temperature based. Odd they would change it from AC to USB. I would have gone the warning message route. E.g. "Stop using your phone if you ever want it to charge. 'AC - slow' charge now enabled."
Sent from my Nexus 4 using Tapatalk 2

Or borrow another charger to test the same issue. You could even see if it's the cord or adapter by swapping them as well.

I let my phone cool off. It went back to AC charging. Definite temperature issue. Just odd is says USB/AC and not hot/cold.
Sent from my Nexus 4 using Tapatalk 2

Finally I have found my problem, was the original LG cable, with other Samsung usb cable works fine and always chage AC mode.
I have phoned to google support and don't change the charger or cable only, they change all the box (phone and charger)

diegocr said:
Finally I have found my problem, was the original LG cable, with other Samsung usb cable works fine and always chage AC mode.
I have phoned to google support and don't change the charger or cable only, they change all the box (phone and charger)
Click to expand...
Click to collapse
This should be the better way. 2€ isn't worth to wait three weeks for a new phone...
Just mi thougths

xXSturmiXx said:
This should be the better way. 2€ isn't worth to wait three weeks for a new phone...
Just mi thougths
Click to expand...
Click to collapse
Yes of course :good:

Glad you guys are able to solve your charging problems. My problem definitely goes deeper than a heating up issue. I have left my phone on charge without use for hours on many different charger setups (mix between LG, Motorola, and stock adapters and cables) and cannot get it out of USB mode. Still No sign of my replacement phone either. I also cannot get more than 7 hours of battery life out of the thing even with data, GPS, and sync off and screen on the lowest brightness. I think I just got an all around lemon /:
Sent from my DROID RAZR using xda app-developers app

[Q] Slow Charge?

Had my Nexus 7 about a week now, had some system restarts at random times (when not even using the device) which is a bit of a concern, but read it could be the 4.2 update. But as hasn't happened while using so far it's not annoyed me. However charging is becoming a bit annoying. It's taking forever!
I have a battery widget installed and its stats tell the story. Battery is usually fully charge in: 6 hours 59 minutes.
It's plugged into the wall, with the cable and charger it came with, tried using an Apple charger block to see if it was that, no luck. Not tried another Micro USB cable yet, but may do if anyone thinks it could be that?
Also according to the stats it charges 1% every 7 minutes and I put it on charge at 9:45am this morning at 35% and it currently on 66% and it is now 2:55pm. It also says it will finish charging at 7:00pm tonight.
The app/widget is Battery Widget? Reborn! Does this have anything to do with the slow charging?
But this is a bit of a joke to be honest. Is my device faulty?

Mine charged from 1% to full in 2h10m today. Stock charger.
Sent from my Nexus 7 using xda premium

Foggy79 said:
Mine charged from 1% to full in 2h10m today. Stock charger.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Hmm, you think mine is faulty?

craiigman said:
Hmm, you think mine is faulty?
Click to expand...
Click to collapse
You are using the original 2A charger right? Have you tried with an other USB cable on it (might be broken?)
Also try to monitor your charging without the app, just write down what time you plugged it in at what percent and check it that way. (the app might show wrong readings).
If you have an other 2A charger you can borrow, you can try to eliminate that to. Not sure how long it takes via a regular USB port on the PC.
If it keeps charging that slow, your battery might be defect..
Good luck anyway

[Q] 3 Hours of Charging = 30% Battery

I'm unsure what's wrong!!!
My phone has been fine, until it died today. I practice a 1 charge a day rule and I let my battery drain completely before I even think about putting it back on the charger.
Today, my phone died a littler earlier than expected, but that's okay because I was using my iPhone for most of the day. I got home at about 11PM and put my phone on the charger at 11:15PM. Here it is, 2:25AM and my phone only has 30% charge.
I've never noticed it charging this slowly before because I typically put it on the charger before I go to sleep and take it off when I wake up. This doesn't seem normal from ANY phone that I've ever used or troubleshooted in my life.
Why so slow? Is everyone's phone just as slow or should I be concerned?
Edit: I am using the charger that came with my phone in the same wall outlet that I've used since I got the phone. Nothing else is plugged into that outlet, either.

It would seem sensible to try a different charger and power outlet.
Sent from my Nexus 4 using xda premium

Your should be at 100% in that 3 hours. Try using a tablet wall charger.

With my phone, sometimes it charges in a flash, and sometimes it's charging for hours, idk why they do this.

drpepe said:
It would seem sensible to try a different charger and power outlet.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
I don't have another charger. All I own is Apple products, unfortunately.
I've done other other outlets throughout the house before posting, but I wouldn't see why the one I'm using is compromised in the slightest. It's charged the phone fine since I've gotten it.

dralways said:
Your should be at 100% in that 3 hours. Try using a tablet wall charger.
Click to expand...
Click to collapse
The only Tablet I have is my iPad. I was thinking about just using the A/C adapter, but I was worried that that might mess something up with my luck. LOL.

You can't use the iPhone\iPad chargers as most of them don't comply with the USB charging standard (It will only charge at 500ma, the limit of USB charging).
You said it died quicker than usual as well? Sure nothing is running that drains the battery? Check the battery usage in settings after leaving it unplugged a while and see if you see anything that's using a ridiculous amount of battery.

I've had the same problem. Sometimes I plug mine into a wall charger and it reads Charging (USB) which may be your problem. Other times it reads Charging (AC).
Sent from my Nexus 4 using xda app-developers app

xrsxj said:
You can't use the iPhone\iPad chargers as most of them don't comply with the USB charging standard (It will only charge at 500ma, the limit of USB charging).
You said it died quicker than usual as well? Sure nothing is running that drains the battery? Check the battery usage in settings after leaving it unplugged a while and see if you see anything that's using a ridiculous amount of battery.
Click to expand...
Click to collapse
It's been off of the charger for about an an hour and a half and nothing out of the norm is draining the battery. Screen on time is at 40%, but that's because I was reading all of my sports news and stuff from my device.
Interesting thing to note: I'm at 79% on my Nexus 4 after about an hour and a half unplugged and doing regular browsing. I'm at 98% on my 4s with doing just about the same things as I've done on my Nexus 4, and even watching a YouTube video on my 4s. I've also had a great deal of voice calls and texts this morning to my iPhone. They were neck and neck when I first got my N4 on December 10th. Now, it's dying faster. The only difference is that I've installed Spotify on my Nexus 4 since then... Which isn't running.

Chinese281 said:
I've had the same problem. Sometimes I plug mine into a wall charger and it reads Charging (USB) which may be your problem. Other times it reads Charging (AC).
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
It was reading USB last night! I thought that was normal, lmao... Thinking it meant "there is a USB cable charging it and not wireless charging."
Hm... The plot thickens, I guess.

Yeah it sometimes reads USB but if you unplug then plug it back in, it will change to AC. Not sure how to fix it but that's your problem right there.
Question: are you stock, rooted stock, or different ROM?
Sent from my Nexus 4 using xda app-developers app

Anyone else having charging issues?

Left phone charging overnight and woke up this morning at 53%.
Using Stock USB cable and ac adapter charging through the wall.
The charger is usually fine and I wake up at 100%. Once or twice I'll wake up with around 73% which is fine.. but at 53%, aint nobody got time for that.
Anyone else have same experience? Any fixes?. Running PA and Franco latest.
Thanks

xpendmt and
br0ok1ynb0i said:
Left phone charging overnight and woke up this morning at 53%.
Using Stock USB cable and ac adapter charging through the wall.
The charger is usually fine and I wake up at 100%. Once or twice I'll wake up with around 73% which is fine.. but at 53%, aint nobody got time for that.
Anyone else have same experience? Any fixes?. Running PA and Franco latest.
Thanks
Click to expand...
Click to collapse
Just recently started having this same problem. When I notice it happening, I can see the charging indicator flipping on and off rapidly.

I use an HTC charger from my old desire and haven't had any issues.
Not even took the nexus 4 charger out of the box.
Try a different charger.
Sent from my Nexus 4 using Tapatalk 2

br0ok1ynb0i said:
Left phone charging overnight and woke up this morning at 53%.
Using Stock USB cable and ac adapter charging through the wall.
The charger is usually fine and I wake up at 100%. Once or twice I'll wake up with around 73% which is fine.. but at 53%, aint nobody got time for that.
Anyone else have same experience? Any fixes?. Running PA and Franco latest.
Thanks
Click to expand...
Click to collapse
I had this problem with the stock charger and cable. Ordered a new (and official) LG USB cable and still had the same problem. Oddly enough, if I use the USB cable from my old Atrix charger with the LG stock charger, the issue disappeared and I have not had it happen since.
No idea if this is a problem with the charger itself, or just cheap USB cables

I had this problem 2 months ago. It's definitely the charger. I replaced it with a cheap travel charger and have no problems.
Sent from my Nexus 4 using xda app-developers app

Stock charger is useless, use a different one... preferably without detachable USB cable. Seems like you're getting what I used to before I changed chargers, "USB charging" when you are plugged into a wall outlet.

for me, the charger was fine. The cable is what is failing. Maybe it wasn't made to usb spec. Sometimes when plugging in, I notice it starts USB charging and not A/C charging. I installed a battery widget that tells me what charging mode it is in so I kept a watchful eye on that. After using a different cable (with same charger), I've never had this issue again.

negroplasty said:
Stock charger is useless, use a different one... preferably without detachable USB cable. Seems like you're getting what I used to before I changed chargers, "USB charging" when you are plugged into a wall outlet.
Click to expand...
Click to collapse
The same thing happens to me, I have to use my old blackberry charger
stock charger is horrid

calanizzle said:
The same thing happens to me, I have to use my old blackberry charger
stock charger is horrid
Click to expand...
Click to collapse
Is it okay to use you blackberry charger? Does it impact battery life?

mynameisrio said:
Is it okay to use you blackberry charger? Does it impact battery life?
Click to expand...
Click to collapse
Should not affect it...

Its just the cable its cheap try a diff cable i use my htc sensation cable but with the stock box charger this phone came with
Sent from my Nexus 4 using xda premium

Are you on stock rom? When I first got my nexus it was on 4.2.1 I noticed that if I left the phone on the charger or was using it while it was charging the % number would go down.
Flashing a custom rom and kernel fixed these issues.

Changed the usb-AC adapter to my iphone one while using the same usb wire and its working fine now.

Mine started doing this yesterday but wasn't using the stock charger. I rebooted the phone and used the lg charger and cable and phone has been fine sine.
Sent from my iPad using Tapatalk HD

I had this issue before where the stock battery graph would sometimes show USB charging even though I'm using the wall charger. It would sometimes flicker between charging and not-charging as well.
I replaced the LG USB cable to a generic micro USB cable from ebay and the issue hasn't repeated ... so far.