Related
Strange Issue!!
when my phone is low on battery and i try to charge it (with the original ac charger or the usb); sometimes (almost half the times) the phone instead of charging .... DISCHARGES!!
i have tried all possible fixes. tried the battery calibration apps also. but it gets ok for a day and then back.
i can only charge my phone while its switched off!
Details:
1. on stock TW4
2. 3 pages on home
3. total widgets= 6 ( advanced task killer; digital clock; 2- circle launcher; quick battery; weather)
4. i kill all tasks always before charging!
WHAT AM I DOING WRONG? BTW I HAVE TRIED TO REMOVE ALL WIDGETS AND CHARGE ALSO! NO LUCK!
HELP!!
It sound like you might have a faulty charger, have you tried charging from your notebook, it`s a bit slower at 400mah compared to 650mah for the mains charger.
Tinderbox (UK) said:
It sound like you might have a faulty charger, have you tried charging from your notebook, it`s a bit slower at 400mah compared to 650mah for the mains charger.
Click to expand...
Click to collapse
Yes, as a matter of fact, right now i am trying to charge through USB with the same drainage.
Switch the phone off for a while!... let the sucker charge.
And the problem is not always!
this is normal, already been posted. the charger is limited to 650 mA on wall power, and 450 mA on USB power. so it is easily possible to pull more power than is going into the device, say if you are gaming or pushing the device hard with navigation or similar.
next time this happens, turn off the screen for 10 minutes as a test, then come back, and see if the charge increased at all. it likely will increase.
RogerPodacter said:
this is normal, already been posted. the charger is limited to 650 mA on wall power, and 450 mA on USB power. so it is easily possible to pull more power than is going into the device, say if you are gaming or pushing the device hard with navigation or similar.
next time this happens, turn off the screen for 10 minutes as a test, then come back, and see if the charge increased at all. it likely will increase.
Click to expand...
Click to collapse
yup! i was having the same problem and did this Roger says and its exactly that... GL
if your phone is hot too it will not charge as well.
RogerPodacter said:
this is normal, already been posted. the charger is limited to 650 mA on wall power, and 450 mA on USB power. so it is easily possible to pull more power than is going into the device, say if you are gaming or pushing the device hard with navigation or similar.
next time this happens, turn off the screen for 10 minutes as a test, then come back, and see if the charge increased at all. it likely will increase.
Click to expand...
Click to collapse
My problem is when I'm not using the phone at all and the screen is off. Tried charging through both wall and usb charger.
The only way right now I can charge my phone is while switched off.
I always kill all apps before charging also... Still!
And if its charging while on, screen off, it gets hot also.
Sent from my GT-I9100 using XDA Premium App
vinaymieux said:
My problem is when I'm not using the phone at all and the screen is off. Tried charging through both wall and usb charger.
The only way right now I can charge my phone is while switched off.
I always kill all apps before charging also... Still!
And if its charging while on, screen off, it gets hot also.
Edit: i also have read in many places that using task killer actually cause more harm than good bcoz it disturbs the proper sequece of how android shuts down an app or process..and cleans up the memory..this will result some of the apps or process to stay awake or come awake again when it sould be sleeping...
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
I once had this problem..after charging for 6 hours battery was only at 60% and phone was hot..found out that although the screen was off..the phone was wide awake all the time. For me the issue was the wifi manager was somehow awake and consuming power..hence phone was hot and battery drain while charging. Check your battery usage graph and see if your phone is awake when it should not be..and pin down the rouge app or process..
Hope this helps..
Sent from my GT-I9100 using Tapatalk
I've got a similar problem, while charging in a car using the SGS2 for navigation. BTW, what is the maximum Amper I can charge the phone without damaging it?
I really dont understand why Samsung keeps supplying this crappy charger. Desire Z and iPhone 4 both came with 1000mAh ones. Super fast charge on both! Come on sammy... This isnt a 900mAh feature phone. This is a big battery hogger dual core with a large battery inside!
Sent from my GT-I9100 using XDA App
SkulleD_PT said:
I really dont understand why Samsung keeps supplying this crappy charger. Desire Z and iPhone 4 both came with 1000mAh ones. Super fast charge on both! Come on sammy... This isnt a 900mAh feature phone. This is a big battery hogger dual core with a large battery inside!
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
I am using HTC's 1000mA charger and still,this happens to some extent,only much less.Try overclocking the hell out of it and then start benchmarking.Charging?Hell no.You may even need to draw power from the house next to yours!
SkulleD_PT said:
I really dont understand why Samsung keeps supplying this crappy charger. Desire Z and iPhone 4 both came with 1000mAh ones. Super fast charge on both! Come on sammy... This isnt a 900mAh feature phone. This is a big battery hogger dual core with a large battery inside!
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
I read somewhre in this forum that samsung has set a limit of max amperage on this device to below 700 miliamp( cant remember the exact value for ac charging and usb charging) so thts why the charger is rated to 700mah
Sent from my GT-I9100 using Tapatalk
iznee said:
I read somewhre in this forum that samsung has set a limit of max amperage on this device to below 700 miliamp( cant remember the exact value for ac charging and usb charging) so thts why the charger is rated to 700mah
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
That's right,but if the charger was 1000mA like HTC's it would continue to draw those 700mA it needs even while in use.You wouldn't notice any difference at all with it charging while not being used,but when screen is on there is a difference.
They limited charge current to 650 mA in the driver code, so that's why they use a 0.7 A charger. Using a higher output won't help unless someone compiles a new kernel.
I charge the phone until 100%. When unplug, it immediately drops to 85%-90%. On one occassions, it dropped to 40%! What's wrong with it?
iCatchU said:
I charge the phone until 100%. When unplug, it immediately drops to 85%-90%. On one occassions, it dropped to 40%! What's wrong with it?
Click to expand...
Click to collapse
As i posted before...something is always awake on your phone..try looking at your battery graph..and i am sure your device is quiet warm..
Sent from my GT-I9100 using Tapatalk
iznee said:
As i posted before...something is always awake on your phone..try looking at your battery graph..and i am sure your device is quiet warm..
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
Thanks. But...i tried charging it whilst it was turned off. The icon showed 100%. I then unplug and switched it on. The same happened. So, it should not be Apps related. Right?
iCatchU said:
Thanks. But...i tried charging it whilst it was turned off. The icon showed 100%. I then unplug and switched it on. The same happened. So, it should not be Apps related. Right?
Click to expand...
Click to collapse
I suggest you do a simple trouble shooting...charge your phone to 100% while it is off.
Than unplug, switch on your phone and just leave it for half hour or an hour without doing anything.
Than swith your display on...and go to settings
Select about phone..
Go to battery use and tap on the graph.
It will show you a few horizontal lines.
Make sure your screen on and awake time bars coincide nicely.
While your screen is off your awake bar should be very very minumum... most of the high battery drain casses will have a very short screen on bar but a solid long line of awake time.
This is normally due to some rougue app or process...and you have to narrow it down.
If your graph looks normal..than you could be having a defective battery or in worst case a defective hardware.
Sent from my GT-I9100 using Tapatalk
The max of 0.7 amps is a partykiller... When in my car, I'd like to have my phone record everything (dailyroads voyager as dashcam), while navigating... Definitely discharging there while on stock carcharger! So I will have to choose when I'm going on holiday (12 hours drive...)
Sent from my GT-I9100 using XDA App
I had a same problem before. But after I reflash 2-3 times (literom 1.5 for now) it's gone, and charging normal on car and wall charger while gaming or navigate.
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
Does Nexus 7 run directly from USB or charger power when connected to USB cable? Or is it so that the device continues to run on battery while the battery is simultaneously being charged? This is an issue related to the longevity of the battery. The easiest way to test this is to try and run the device on DC power while the battery has been removed. I have neither the tools nor the guts to check this out. Suggestions from anyone and everyone are welcome.
Tablet won't turn on without battery while being plugged in/charged, I tried it.
Sent from my Galaxy Nexus using xda app-developers app
thanks
Kuchar09 said:
Tablet won't turn on without battery while being plugged in/charged, I tried it.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
and if we remove the battery while the tablet is running? (obviously while plugged in)
dmmbbs said:
and if we remove the battery while the tablet is running? (obviously while plugged in)
Click to expand...
Click to collapse
Humm... Interesting, it stayed on. If i restart without a battery it will actually restart to the home screen but then restart if u try to click on anything.
So I guess ignore my first post, these are different results then I got a month ago.
Sent from my Galaxy Nexus using xda app-developers app
Settings-->Battery
Kuchar09 said:
Humm... Interesting, it stayed on. If i restart without a battery it will actually restart to the home screen but then restart if u try to click on anything.
So I guess ignore my first post, these are different results then I got a month ago.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Battery settings shows "X" seconds on battery and that X never changes if the tablet is connected(to PC/charger), no matter what you are doing. I connected the tablet to PC front panel USB, switched it on, it showed 100% charged and 0s on battery. Now I fired up Stability Test and after an hour or so battery settings showed 95% charging, 0s on battery. Your and my findings establish a point, i.e. The USB power provides direct power to the tablet upto a certain wattage, beyond which- as in case of a demanding load- the battery also/solely provides power. The battery is always being charged in background if it is not already fully charged.
My nexus 7 has been plugged in since 7 hours and still is just 70 % . using official asus wall charger rated 2.1 A . stock rom rooted device
Problem has been persisting since many days now . usually charges at this rate only ! While at 4.1 it used to be fine but now at 4.2.2 charges this slowly . please help..!
Here you go.
Please correct me if I'm wrong... I've had a quick look through a few of those threads and it seems as if there is no real solution? The charger that the tablet comes with takes many hours to charge the device fully?
Ridiculous! I hate that while I am using the tablet when its charging the battery still goes down (despite being plugged in)!
Sent from my Nexus 7 using xda app-developers app
- you could have a bad battery
- you could have a bad charger
- you could have a bad cable
- you could have a variable amount of power drawn by an active device - which depends on what apps you have installed, your screen settings, kernels used etc cetera. (read : VARIABLE)
- you could be trying to charge the device via a USB port, which provides only 500mA of current - less power than the device uses in certain screen-on scenarios (esp. the 3G model)
Until you run tests which are meant to discriminate between these different scenarios, you will be just wandering around in the dark.
So try this - run the battery down through normal usage (not too far though) - say to 10%.
Then, turn the tablet off (not just the screen, I mean powered completely off).
Then charge it (on the 2A AC charger!) for about 75 minutes. Boot it up and see what the battery charge state is. Then, power it off completely again and charge it more (on the 2A AC charger!) for another 75 minutes. The first 75 minutes should bring it to somewhere around 50% charge, and the 2nd should be enough to bring it to 100% charge.
My (December '12) N7 charges from about 4% to 100% in 150 minutes (2.5 hrs) when it is on the A/C charger. That seems pretty reasonable, as 4.325 A-h / 2.5 hrs = 1.73 Amps.
By the same simple maths, a 500-mA current limit (e.g. USB hub/computer port) should take 8.7 hours to charge the N7 - even when it is completely turned off! And if you are using the device in this scenario, it might not charge at all!
This will at least tell you if there is a problem with the battery, charger, or cable. If it takes too long to charge when there's no software running, then the problem can not be software, right? (There's no software running with the device powered off.)
If it turns out that the battery/charger/cable seems OK in the above test, then the next thing to do is to determine what you have done to the stock configuration (in the way of adding apps, whatever). It's easy to say "4.2.x did this to me" or "4.1.x was so much better", but there does not seem to really be any compelling evidence coming from a majority of users that this is true.
I don't deny that people experience battery troubles; otoh, I'd wager that the root-cause of 95% of the trouble falls into two basic classes: defective hardware (incl. worn-out batteries and/or loose battery terminals), and user-caused software additions/changes.
good luck
I've had experience with 3 models that all three had power issues. Reconnecting the battery cable solved it for me, but in my case the N7 went 'dead' on me, didnt notice slow charging times. Disconnecting the battery cable for 30s then reconnecting and powering up solved the problem for me. Left me thinking their battery hardware assembly is very flawed. Or my local store has had a bad batch.
I found this movie helpful with the unhooking of the connector (at around 3:30)
http://youtu.be/bjh0H6SZHRM?t=3m23s
Many thanks for that response. I will try out for sure.
My nexus device has stock ROM (not rooted) so I hope its a charger issue. Then the issue will go away quickly by replacing the charger.
Thanks again.
Sent from my Nexus 7 using xda app-developers app
Repoman123 said:
Many thanks for that response. I will try out for sure.
My nexus device has stock ROM (not rooted) so I hope its a charger issue. Then the issue will go away quickly by replacing the charger.
Thanks again.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
if you have a phone or other deive that has the same usb connection try that, my samsung charger charges my nexus in 3hrs :laugh:
chismay said:
if you have a phone or other deive that has the same usb connection try that, my samsung charger charges my nexus in 3hrs :laugh:
Click to expand...
Click to collapse
Yeh it occurred to me today that I can use my HTC phone charger or my wife's blackberry charger and see how I get on.
Am I correct in saying that if the tablet still takes long to charge with those chargers then its an issue with the tablet?
Many thanks
Sent from my HTC Sensation using xda app-developers app
bftb0 said:
- you could have a bad battery
- you could have a bad charger
- you could have a bad cable
- you could have a variable amount of power drawn by an active device - which depends on what apps you have installed, your screen settings, kernels used etc cetera. (read : VARIABLE)
- you could be trying to charge the device via a USB port, which provides only 500mA of current - less power than the device uses in certain screen-on scenarios (esp. the 3G model)
Until you run tests which are meant to discriminate between these different scenarios, you will be just wandering around in the dark.
So try this - run the battery down through normal usage (not too far though) - say to 10%.
Then, turn the tablet off (not just the screen, I mean powered completely off).
Then charge it (on the 2A AC charger!) for about 75 minutes. Boot it up and see what the battery charge state is. Then, power it off completely again and charge it more (on the 2A AC charger!) for another 75 minutes. The first 75 minutes should bring it to somewhere around 50% charge, and the 2nd should be enough to bring it to 100% charge.
My (December '12) N7 charges from about 4% to 100% in 150 minutes (2.5 hrs) when it is on the A/C charger. That seems pretty reasonable, as 4.325 A-h / 2.5 hrs = 1.73 Amps.
By the same simple maths, a 500-mA current limit (e.g. USB hub/computer port) should take 8.7 hours to charge the N7 - even when it is completely turned off! And if you are using the device in this scenario, it might not charge at all!
This will at least tell you if there is a problem with the battery, charger, or cable. If it takes too long to charge when there's no software running, then the problem can not be software, right? (There's no software running with the device powered off.)
If it turns out that the battery/charger/cable seems OK in the above test, then the next thing to do is to determine what you have done to the stock configuration (in the way of adding apps, whatever). It's easy to say "4.2.x did this to me" or "4.1.x was so much better", but there does not seem to really be any compelling evidence coming from a majority of users that this is true.
I don't deny that people experience battery troubles; otoh, I'd wager that the root-cause of 95% of the trouble falls into two basic classes: defective hardware (incl. worn-out batteries and/or loose battery terminals), and user-caused software additions/changes.
good luck
Click to expand...
Click to collapse
tried out charging it up from 10 % to 50 % .. took around 3 hours !
similar observations while charging till 100% ..
It turns out that the charger may be faulty . I'll have try out other chargers. The problem is that I am here in india and made my relative bring it for me from the U.S. . I can't find any trusted chargers here . I'll try charging it with the other Sony charger I have (rated at 850 mah ) and compare the relative results . Thanks for the info anyways !
ni15595 said:
I'll try charging it with the other Sony charger I have (rated at 850 mah ) and compare the relative results.
Click to expand...
Click to collapse
850 mA is going to charge pretty slowly also. Appearances (simple maths, A-h = Amps * hours) are that to get a 2.5-hour charge (4% to 100%) you are going to need a 2000 mA (2 A) charger.
As I said before, not accounting for losses the 4.325 A-h capacity of the battery works out to 1.73 Amps for 150 minutes. But probably due to losses the current is in fact higher - perhaps very close to the 2A limit of the US OEM A/C charger.
good luck
AW: nexus 7 charging awfully slowly !
This could be the solution:
It seems that the charger marked as 2amp is only 1amp: see this[first result googling <nexus7 battery charge slow>]:
plus.google.com/app/basic/stream/z12pjzqhrnvbcjvhs04cd5gbiz3wg5eqqjg
(Sorry, but im not yet allowed to post URLs, so copy the link into your Browser)
Otherwise, i have the prob that my n7 needs about 20 hours to get fully charged via AC and the charge even decreases if i use the tablet. Has anyone an idea what to do?
Sent from my Nexus 7 using xda app-developers app
OK I've tried different chargers and different locations but still no luck. My n7 takes about 8 hours for a full charge and if I use it while its charging the battery still decreases. Bizarre!
I'm concluding that this is an issue with my tablet? Do u guys agree? Should my next step be to contact Google?
Thanks again in advance
Sent from my Nexus 7 using xda app-developers app
Same problem here ! Apparently it seems like there's no solution of it .
ynrozturk said:
Here you go.
Click to expand...
Click to collapse
I have tried to find a worked solution for slow charging but no hope.
I have posted a thread to post my case: http://forum.xda-developers.com/showthread.php?t=2126185
After posting that thread, no help worked! So i came to ASUS to replace the mainboard and it charged normaly again (3 hours to 100%) but no for long, now with turning-off Nexus 7, it takes me sometimes 6 hours, 7 hours, 17 hours to charge....
It happened not only on my device, but a lot of devices of tinhte.vn members.
Hardware issues? I hope I don't need to change my mainboard again...
Get a new charger at amazon....the one with the most highest reviews....now my nexus charges blazing fast....the oem one is garbage
Sent from my Nexus 7 using xda app-developers app
I would agree.. charging is very slow for me thru the oem charger. Utter bull crap. Battery % decreases when I use it while charging.
Sent from my HTC Explorer A310e using xda app-developers appp
akshat.shenoy said:
I would agree.. charging is very slow for me thru the oem charger. Utter bull crap. Battery % decreases when I use it while charging.
Sent from my HTC Explorer A310e using xda app-developers appp
Click to expand...
Click to collapse
I use an OEM charger - no problems.
I suppose that Asus could be multi-sourcing them from a variety of suppliers though, and that could account for different experience.
(Either that or something worse - funny business in Asus' supply chain or in the retail sales chain. There seems to no limit the amount of counterfeit electronics from the pacific rim and batteries & charger hardware seem like a likely place for that kind of activity).
GabrielOspina said:
Get a new charger at amazon....the one with the most highest reviews....now my nexus charges blazing fast....the oem one is garbage
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Did you have the same issue before you got that new charger off amazon then?
Can you please share the link to the charger?
Many thanks!
Sent from my Nexus 7 using xda app-developers app
Go to battery menu and make sure it's actually charging in AC mode, I don't like the USB port on this tablet
Sent from my Nexus 7 using xda app-developers app
STLset said:
Go to battery menu and make sure it's actually charging in AC mode, I don't like the USB port on this tablet
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
How exactly do I do this? Many thanks.
Sent from my HTC Sensation using xda app-developers app
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.
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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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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
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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.
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