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N7 only charging 15%/hr with stock 2A charger

I noticed lately that my N7 has been taking forever to charge. And this is with the supplied stock 2A charger and cable.
I'm flashed AOKP Milestone 1 with its stock kernel, could the ROM or kernel be the problem? I also turned the N7 off to charge and after an hour, only ~15% was charged.
I'm not sure if this problem as always existed as I used it sparingly in the past but within the alst few days I found myself using it a lot and wanting to charge it fast.

Cable suck.... Change it....

tracerit said:
I noticed lately that my N7 has been taking forever to charge. And this is with the supplied stock 2A charger and cable.
I'm flashed AOKP Milestone 1 with its stock kernel, could the ROM or kernel be the problem? I also turned the N7 off to charge and after an hour, only ~15% was charged.
I'm not sure if this problem as always existed as I used it sparingly in the past but within the alst few days I found myself using it a lot and wanting to charge it fast.
Click to expand...
Click to collapse
Are you using a generic micro usb? If so that's the problem. use the Asus cable that came with it, or any other good quality cable.

Did you use a USB extension cable? If I use one, my nexus charges very slow.
I think the Nexus measures the resistor-value in the cable and if it doesn't have some specific (low) value, it just loads at 500 mAh. Or it does somehow read out the ID-Pin of the cable....

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!
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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
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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.
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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] Car Charging Issues with Nexus 4

Past 2 days my Nexus 4 is not charging via Car Charger, i have original Samsung Charger, i also have USB port. i tried the USB cable i receievd with Nexus 4 from LG. No Luck, i can only charge my Nexus 4 at home.
I checked my usb lead and Samsung Car Charger to charge my Backup phone Galaxy mini, it works fine. Gaalaxy mini charges but not my Nexus 4.
I was thinking it might be an issue from CM Kernel. i recently installed CM10.1 nightly 13/3/2013 it was working fine before going custom rom. I have used every single custom roms in the past, i had no problem with charging anywhere before.
so i returned back to stock today and it is the same not charging.
I can only charge at home, but i use it alot and i need to keep it on charge in the car too.
Help pls thank you

Lower amp car chargers can't charge the Nexus4 faster than it discharges. I have a 2 Amp charger that works.
Having the screen on full brigthness while using GPS drains the phone really fast!
Does your Nexus4 not charge at all or does it charge slower than it drains?

It might be the kernel, I am using a Samsung galaxy S3 usb cable with a usb port car charger and I do not have any problems charging my N4. I am on Baked ROM and Franco kernel.

it has nothing to do with my car chager cuz it was working fine before.

saldebot said:
It might be the kernel, I am using a Samsung galaxy S3 usb cable with a usb port car charger and I do not have any problems charging my N4. I am on Baked ROM and Franco kernel.
Click to expand...
Click to collapse
i did not have any problems before using the CM
as soon as i flashed CM10.1, this problem started. i changed back to stock and still same problem

I'm also having problems with charging my Nexus 4 in the car. I have charged my N4 everyday going to work for the last 3 months. But last week it stopped working I'm also running CM 10.1 nightlies since day one if that has any importance.
The car charger works with my old Nexus One
I have bought another car charger that works(verified with N1), but doesn't charge my N4. Both chargers support 1 Ampere.
I can charge my N4 with AC-adapters
I can also charge the N4 connected to my computer using USB.
Any ideas?

bumping this. any solutions? same boat here

I have same isdue, but not all the time. I noticed my N4 stops charging with my car charger, the original charger and the wireless charger when it comes too hot. (after playing a game for example)
The only way I found to make it charges again is waiting for it to get cooler and then replug the charger. I think it might be an hardware security that stops the charge when the battery is too hot because when my N4 has a normal temperature it charges normaly evdn on my 1A car charger

BIG bump here!! My N4 stopped charging in my car randomly around when 4.3 came out....!! Any ideas what's up?!? Annoooying......!
Just in case I drive a 2010 Prius.... Worked fine since the N4 was first released.
°N4•

blogmaster2003 said:
My problem is solved. Im using a case and some dust was inside i suppose. So after some clean its working again
Sent from my Nexus 4 using Tapatalk 2
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Click to collapse
Gotta love them easy fixes
Sent from my Nexus 4 using xda app-developers app

[Q] fast charge kernel

I must be doing something wrong, but can't figure out what
I wanted to enable fast charge, cause my device drains more battery than it charges, I installed the "fast charge" app from the play store, but it always says my kernel is unsupported.
I've already tried these kernels:
-franco (franco kernel updater)
-fugumod (fugumod updater)
-trinity (trinity kernel toolkit)
-faux (fauxClock)
-timur
and I've searched in each app for a place to switch it on but couldn't find it anywhere.
I'm running cyanogenmod 10.1
the tablet is rooted and unlocked.
anyone any idea what could be the problem?
thanks for your time!

Give NCX Kernel a go, I'm nearly 100% sure (99.9999%) that has fastcharge enabled.

Wilks3y said:
Give NCX Kernel a go, I'm nearly 100% sure (99.9999%) that has fastcharge enabled.
Click to expand...
Click to collapse
so far, I've been unable to find a zip with that NCX kernel, so I could flash it, can you provide me with a link or something?
I only find .img files, and I'm unsure what I have to do with them :s

Don't waste your time. If you tread the reviews, your problem is common with that app. Download Trickster Mod and use that asp.
Also, fast charge isn't going to have any effect if you're plugged into an ac outlet.
Sent from my Nexus 7 using Tapatalk HD

Like najaboy said, fast charge has no effect using an ac charger. Only speeds up charging if your charging via USB.
Sent from my Nexus 7 using xda premium

Does fast charge via USB even exist for the nexus 7, because so far this seems like some sort of vapourware joke that doesn't exist.
My device is shot, the headphone jack has gone bad, and now regardless of what I do I will always get charging from USB. It won't connect to the PC, and won't power devices from an otg cable, I even made a fast charge usb cable that tricks the device into thinking its an ac power source..... It works with everything but this, so its safe to assume that if indeed there is no fast charge I will take great pleasure in smashing this to bits.
Has to be up there with the first generation Xbox 360 as one of the worst build quality devices ever made.

95Z28 said:
Like najaboy said, fast charge has no effect using an ac charger. Only speeds up charging if your charging via USB.
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Click to collapse
And even then only if the active USB device (e.g. powered hub) is also designed to not current clamp or fault-open at currents above 500 mA. It takes two to tango.
Even when it does work, it's nowhere near as fast as a 2A AC adapter, btw.

USB 3 can output 900mA
Sent from my Nexus 7 using xda app-developers app

Any change to resolve this issue?
I have a 2A usb car charger, but is I use GPS programs (like waze) , battery drain in too high , and charging current is not enough.
Any Fast Charge supporting kernel could be the solution.
It worked very well in my previous Galaxy Nexus phone.
Any idea?

spidertop said:
Any change to resolve this issue?
I have a 2A usb car charger, but is I use GPS programs (like waze) , battery drain in too high , and charging current is not enough.
Any Fast Charge supporting kernel could be the solution.
It worked very well in my previous Galaxy Nexus phone.
Any idea?
Click to expand...
Click to collapse
A kernel with fast charge is inapplicable to your situation. You simply need ausb cable that had the d+ and d- pins shorted.
Sent from my Nexus 7 using Tapatalk HD

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.
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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?
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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.