When I'm at my desk (most of the day), I like to have my phone plugged in to keep the battery full. The vibrant has an annoying "feature" that will beep and pop up a window whenever the battery is full, which makes using it when plugged in difficult. Even once it's full, it will occasionally pop up again while I'm trying to do something on the phone. I know leaving it plugged in won't actually harm the battery, so I don't see this as being anything other than an annoyance.
Is there any way to disable this thing? They sell (or will soon sell) car and desk docks, and I can't imagine you're expected to deal with this popup every few min. while you have your phone in a dock. There must be some way to get around it.
Third thread in two days. No solution yet.search.
Did a title-only search for "battery". Only two relevant results in last 10 days, neither said no solution. Best answer from those threads was "I don't know".
try renaming the chargingwarning.qmg file to chargingwarning.qmg.backup in the /system/media and see what happens. I did this with the bootsamsung.qmg to get rid of the bootup animation
What file manager did you use? I just tried this with ES File Explorer and got "operation failed". I assume it's a permissions thing? The phone is rooted, but ES never asked for SU permission.
I was able to rename it with root explorer, which killed the notification beep. The window still pops up whenever it's plugged in, though. Can't wait for a stable, stripped down Froyo rom.
candre23 said:
What file manager did you use? I just tried this with ES File Explorer and got "operation failed". I assume it's a permissions thing? The phone is rooted, but ES never asked for SU permission.
Click to expand...
Click to collapse
I like Android Mate. It's a nice multipurpose tool.
keeping your phone stored on the charger for an extended period of time is actually bad for the battery. lithium polymer packs like we have are pretty sensitive to overcharging. the last thing you want to have is your battery puff on you.
captain_awesome said:
keeping your phone stored on the charger for an extended period of time is actually bad for the battery. lithium polymer packs like we have are pretty sensitive to overcharging. the last thing you want to have is your battery puff on you.
Click to expand...
Click to collapse
Mine pops up in the middle of the night while it is on the charger. Sorry, not going to make a 3am alarm to wake myself up to remove my phone from the charger (and then wake up for real at 7am with a not fully charged phone... )
moonrock said:
Mine pops up in the middle of the night while it is on the charger. Sorry, not going to make a 3am alarm to wake myself up to remove my phone from the charger (and then wake up for real at 7am with a not fully charged phone... )
Click to expand...
Click to collapse
nobody said you had to. im just saying that in general its advisable to remove the phone from the charger when the battery is done charging.. or as close to that time as possible. a few hours after its done wont make a significant difference. just dont leave it charging for 12 hours after its already full.
I thought the lithium ion batteries certified with ISO standards have a overcharge protection circuit?
I think its bad if overcharging is causing the battery to overheat, but I really doubt there is no overcharge protection for such a high end phone.
I've read in a couple places now that the phone actually stops charging once it reaches 100%, at which point it runs off of the battery until unplugged and plugged back in. The "Battery Full" message then would be to say that there's no reason to keep the phone plugged in anymore. Since the phone is not drawing a current/charging anymore, there's no way the battery can be damaged by leaving it plugged in.
Downside is that you can plug the phone in at night, it'll be fully charged 2 hours in, then discharge for 6 hours before you even wake up.
I'll see if I can find the discussions on this.
I don't believe that is correct, I plug the phone in at night before bed and unplug it in the morning and it has a full charge.
Trying the rename now. Will post if it fixes the popular. But may only change the alert noise. I keep my phone off or on silent at night.
These phones have lithium ion batteries over charging is not an issue.
Sent from my SGH-T959 using XDA App
AVonGauss said:
I don't believe that is correct, I plug the phone in at night before bed and unplug it in the morning and it has a full charge.
Click to expand...
Click to collapse
That's been my experience, too. But like I said, just things I'd heard on the net.
kelmerp said:
try renaming the chargingwarning.qmg file to chargingwarning.qmg.backup in the /system/media and see what happens. I did this with the bootsamsung.qmg to get rid of the bootup animation
Click to expand...
Click to collapse
This is not the solution. This makes the full battery image go away when the phone is off, making it seem stalled. The pop-up notification remains.
Sent from my SGH-T959 using XDA App
austindkelly said:
This is not the solution. This makes the full battery image go away when the phone is off, making it seem stalled. The pop-up notification remains.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
QMG files are the 3d/2d renderings used when the phone is off or when booting up. the fully charged notification is text and thus not a QMG. To fix this you need a custom rom or a specialized app to disable it as it is in the source code.
captain_awesome said:
keeping your phone stored on the charger for an extended period of time is actually bad for the battery. lithium polymer packs like we have are pretty sensitive to overcharging. the last thing you want to have is your battery puff on you.
Click to expand...
Click to collapse
This is not true. There isn't a lithium ion/polymer device battery that can be damaged by staying on the charger. The charging circuitry switches from constant current charger when the battery is mostly full to constant voltage charging. After reaching a predefined max voltage the charging stops. Overcharging is not only bad for lithium based batteries, but rather they can explode. So, it would be impossible to have something on the market that didn't intelligently stop charging (unless of course you are buying things from flea markets in china).
In fact, if you want the longest life out of your battery you will keep it as fully charged as possible. Lithium based batteries are primarily limited by number of charge/discharge cycles (approx 300 and it also depending on load requirements, i.e. less for high load devices like laptops) and secondarily by age. Keeping it charged is the best way to go.
Samsung support told me on Twitter it was not configurable. I told them to have their software team make it disableable in the 2.2 update.
I'm sure they'll get right on it, just like they did with the GPS issue... and the compass issue... and the accelerometer issue... and the stalling issue...
Related
alright, did the research, bla bla bla.... my phone out of nowhere slowly charges up to around 60%, and dies within a few hours. got a new battery, does the same thing. i have tried 3 batteries, and still does it. ran all three batteries all the way down, put them on the charger, still no go. i really give up with this one. any ideas?
What widgets, if any, are you using? Any tasks running in the background need to be killed? Try deleting your batterystatus file (can't remember the exact name of it located in /data/system. delete it, let the battery die completely and then recharge. When you power on the phone, a new Batterystatus file will be created.
Have you tried charging over night (~8 hours) with the phone off? This might give some indication if it is a software or hardware problem.
It's been on the charger for almost 10 hours now
And i will try deleting the file for the hell of it....
Yes but did you try charging with the phone powered off?
yes i have, and i still am heaving problems. its weird though because if i plug up to my car for power, sometimes it charges to 99%, straight from 20%. weird....
Does the phone actually turn off? Maybe the battery is just out of sync.
so then how do i fix it? LOL
corp769 said:
so then how do i fix it? LOL
Click to expand...
Click to collapse
You drain the battery all the way till the phone turns off then you keep it off and charge it all the way back up.
Do you guys mind me asking where this battery status file is exactly? Or what it is called?
This may sound silly but i just went throuyght htis.
WQeird as it sounds...after replacing batteries and moving the wall charger i came to figure that the charger iutself had dropped voltage and was causing errratic charging behaviour.
Never overlook the obvious .....Just saying
So does anyone know what that battery status file was called?
can it be done...its annoying when it makes the noise and lights up when im asleep
What annoys me more is that it appears to stop charging once it's full. So by the time I wake up and unplug it in the morning, my battery widget tells me I'm only at 95%
thats crappy...but anyone know the answer to my question?
The noise can be disabled by turning off the screen tap noise in settings under Sounds and Display (you'd be surprised at how unnecessary that noise really is - it's a much quieter experience without it - and I daresay even slightly faster, though your brain tends to think the phone is waaay faster with the noise response, as it gives you something to react to instantaneously.) However, the notification will still cause the screen to turn on for a few seconds. No way to change that without root.
Actually, this is a big problem for me..
I changed the setting for when plugged in, so that the screen stays on.. So I kinda use it as a bedside clock..
The beep and the notification are 100% annoying.. It has woken me up in the middle of the night.. I HAVE turned down the sound, but for some reason, the screen tapping noise has returned to full volume on it's own a number of times.
But the WORST part, is that IT DOES STOP CHARGING YOUR PHONE AFTER THE NOTIFICATION COMES UP! I just unplugged my phone after charging all night, getting the FULL CHARGE notice, and it is at 96% (according to Battery Status Pro and Battery Monitor).. Yesterday, it was at 95%. If I charge it and unplug it right after I get the notification, then the phone is 100%. I think I lose a lot of power since I have the screen stay on when plugged... So now that it is done charging, my screen stays on using battery power for an hour or 2 while I am still sleeping (while plugged in). But why does the power still not trickle in even after being fully charged??
This needs to be fixed!!
EvanWasHere said:
Actually, this is a big problem for me..
I changed the setting for when plugged in, so that the screen stays on.. So I kinda use it as a bedside clock..
The beep and the notification are 100% annoying.. It has woken me up in the middle of the night.. I HAVE turned down the sound, but for some reason, the screen tapping noise has returned to full volume on it's own a number of times.
But the WORST part, is that IT DOES STOP CHARGING YOUR PHONE AFTER THE NOTIFICATION COMES UP! I just unplugged my phone after charging all night, getting the FULL CHARGE notice, and it is at 96% (according to Battery Status Pro and Battery Monitor).. Yesterday, it was at 95%. If I charge it and unplug it right after I get the notification, then the phone is 100%. I think I lose a lot of power since I have the screen stay on when plugged... So now that it is done charging, my screen stays on using battery power for an hour or 2 while I am still sleeping (while plugged in). But why does the power still not trickle in even after being fully charged??
This needs to be fixed!!
Click to expand...
Click to collapse
Are you using the cable or the dock? Curious cause the dock doesn't stop charging the phone when its full. I haven't used the stock cable cause it doesn't really charge the phone at all when plugged into the computer. I killed the phone last night (takes surprisingly long from 6%) and it charged just fine last night. I'm hoping the phone realizes there's more juice than it thinks there is. It was at 0% alone playing youtube videos for like 10 minutes. I finally killed it with a 3d game.
Sent from my SPH-D700 using XDA App
rufflez2010 said:
Are you using the cable or the dock? Curious cause the dock doesn't stop charging the phone when its full. I haven't used the stock cable cause it doesn't really charge the phone at all when plugged into the computer. I killed the phone last night (takes surprisingly long from 6%) and it charged just fine last night. I'm hoping the phone realizes there's more juice than it thinks there is. It was at 0% alone playing youtube videos for like 10 minutes. I finally killed it with a 3d game.
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
I am using the cable plugged into the AC adapter. I haven't purchase a dock yet.. Waiting for the dock that sits higher up on the desk/table.
Yes, I definitely noticed the same thing.. When the phone gets down to 10%, it can take an hour or 2 to get to 5%... and I can still use the phone and watch videos till it gets to 1%... Basically, as you said, it is not reading the juice right.
As far as the phone not charging once it gets to 100% goes. This is definitely true. It seems that it will stop charging, but once the phone drops to a certain % it will resume charging... I'm not sure why it does this, seems kind of dumb. But you can see it happening on this chart. Look closely at the Charging portion
I don't think the widgets are reading the battery right. I am getting the "battery full" notification when my widget says 94%-97%. I charge it while I am at work so it is right next to me. From 12pm-5pm it was full and did not change from "95%" with the notification light staying blue the entire time.
It doesn't seem so much that the phone is quitting the charge and burning through 5% of the battery overnight.
The phone seems to consider 95%+ full...or the widget is not accurate.
This morning I woke up to the phone at 95% with the blue light.
Unplugged, plugged back in and it continued to charge till 97% then blue light again.
Unplugged, plugged back in and it continued charge for a couple minutes then blue light again.
I love the phone, but I hate this problem... I really hope someone fixes this soon, especially after we get custom ROMs!
Also noticed that the phone says battery full even though the battery widget states 95% or 97%. I have a generic Galaxy S on ATT with the same battery widget, never a problem, always shows 100% upon recharging.
Otherwise, this version seems much faster overall than the generic Galaxy S. Both get decent battery life - approximately a day and a half to almost two days on a charge. Certainly better than the Nexus One.
El Mono
I don't find this an issue at all. I think its rather healthy for the battery to discharge a bit. Its worse to keep it plugged in at 100% all the time.
Sent from my SPH-D700 using Tapatalk
They set it up to discharge on the charger after it hits 100% so it doesn't over charge the battery. My palm pre did the same thing the only difference was they had a gui battery level that read 4% different then the actual battery level for this reason so when it was on charge and said 100% it would cycle down to 95% then back up to 100% while showing 100% battery to you through the phone menu the entire time.
What I think is the most annoying is that the screen stays on. I haven't heard it yet, but I'll wake up and check my phone and I see the notification that the battery is full and the screen is on. I don't know how the life on those super AMOLED screens are, but I'm sure that leaving the display on for hours every night is detrimental.
I turn my phone off at night when I charge. I must sleep heavy because I have not seen or heard what you guys are talking about. I use the AC adapter.
dauss said:
What I think is the most annoying is that the screen stays on. I haven't heard it yet, but I'll wake up and check my phone and I see the notification that the battery is full and the screen is on. I don't know how the life on those super AMOLED screens are, but I'm sure that leaving the display on for hours every night is detrimental.
Click to expand...
Click to collapse
I can't say I've had this problem - the screen shuts off automatically after 10-20 seconds. You might be waking up as soon as the screen pops on?
Also, keep in mind folks, to turn off the sound, under Settings, Sound and Display, disable "Audible Selection", and the noise won't appear again.
A fix like this, I suppose?
http://forum.xda-developers.com/showthread.php?t=748400
It's a good effort, but reading the thread, a fresh, zero-touchwiz rom might be the only real answer.
I am not sure what I'll do. Plug it in to the wall adapter and cover it up? Easy, but if I do that, the dock is going back to Sprint. I have the travel dock/spare battery, so I could swap in a full battery to get the notification out of the way, but that seems... retarded.
This is really annoying to me.
Charging notification PROBLEM SOLVED !
PROBLEM SOLVED ! NO COST !
I saw this suggestion in another forum and it WORKS, so I'm passing it on !
Set the global notifications to SILENT.
Set the notification on Gmail to any ringtone, NOT DEFAULT.
Set the notification on messaging to any ringtone, NOT DEFAULT.
You'll still have a tone when you 1st plug the phone in to the charger, but NO tone when it's fully charged.
I don't mind the discharge the problem but it discharges too much. I woke up once with the battery full message, hit ok only to see my battery was at 87%. Anyone know if charging ever kicks back in once it discharges down to a certain point? Babysitting your phone charging pattern is kind of counter productive.
Sent from my SPH-D700 using Tapatalk
After several cycles on WP7 the batt was fully drained and now it won't charge (charge LED goes on for few seconds and then goes off). It won't load either, just switches off on DFT screen. Batt is standard.
Guess it is critical not to allow batt to drain fully on WP7?
Is there any solution to this?
Thanks for any ideas.
Had a similar problem with Android...battery drained completely and wouldn't charge. I solved it by cutting the end off of a spare USB cable, removing the battery, and charging directly from the cable (red wire to positive/black to negative). After about twenty minutes I put the battery back in the phone and it booted Right up. Or, if you have more sense than me, you could just pick up an external battery charger...I'm just the hack apart a cable and do it caveman kinda Guy...
Sent from my HTC HD2 using XDA App
I can confirm a similar experience; I thought it was worth trying the fully-drain-then-fully-recharge regime suggested elsewhere on these forums as a means of extending battery life, which does struggle a bit on WP7.
The fully discharge bit was easy, but it is worth everyone bearing in mind that magldr - as advised, I believe - will not allow the phone to charge. As a result, I was getting into WP7 (just) only for it to almost immediately shut down. But it was at least doing a small amount of charging before it did.
After a sweaty fifteen minutes or so of restarts (I was having to take the battery out to force the restart as it wouldn't start on the power button), it decided it had enough charge to...well, charge and all was well.
My suggestion would be not to risk going beyond the critical warning WP7 gives, at least until magldr is able to offer charging.
Almost the same issue here, without having let the battery fully drained...
I can't charge my hd2 anymore.....if it's turned off.
But, it Can be charged if wp7 is running! I don't know why...
I had This issue when I received the phone. It took me a whole Day to charge the battery the first time : orange LED turning off after 10seconds (HD2 switched off or in wm6.5
Once the led is off, can't turn the phone on or charge it again until I remove and put the battery back.
It was in summer so I thought the phone was too hot, so I cooled the battery with a fan, replaced it, retryed... At least 10times, and it finally charged.
SO weird, I'll test This again with wp7, who knows?
I am wondering whether it is some kind of magldr bug?
I'll try the trick with the cable directly to the batt. It is not very practical though if you drain your batt, where there is no access to spare cabling.
bdkinney said:
Had a similar problem with Android...battery drained completely and wouldn't charge. I solved it by cutting the end off of a spare USB cable, removing the battery, and charging directly from the cable (red wire to positive/black to negative). After about twenty minutes I put the battery back in the phone and it booted Right up. Or, if you have more sense than me, you could just pick up an external battery charger...I'm just the hack apart a cable and do it caveman kinda Guy...
Sent from my HTC HD2 using XDA App
Click to expand...
Click to collapse
This should be put into the sticky rollup thread for people who have let their batteries drain.
Why dont you do some pics bud and create a topic?
I am cutting the cable as I write. Will take some pics.
If your battery drains completely, just remove it, replace it back. Without starting the phone, connect it to your PC. start and enter the bootloader. You'll be then able to charge. I did it like that last week.
Sent from my HD7 using Board Express
Running cable directly to the batt is confirmed to work. Just revived mine with this trick.
jemaho said:
If your battery drains completely, just remove it, replace it back. Without starting the phone, connect it to your PC. start and enter the bootloader. You'll be then able to charge. I did it like that last week.
Click to expand...
Click to collapse
How do you enter the bootloader, if the phone is not responsive at all?
adminlt said:
I am wondering whether it is some kind of magldr bug?
Click to expand...
Click to collapse
Less of a bug and more of an unwanted side-effect of having this excellent capability, I think. I seem to recall that the developers are aware and looking to see what can be done.
adminlt said:
How do you enter the bootloader, if the phone is not responsive at all?
Click to expand...
Click to collapse
I guess it is possible to completely drain the battery, in which case this won't work. But if there is some power, removing the battery and replacing it should kick the phone into life for long enough to do this. This was going to be my first try if persistent rebooting hadn't eventually worked.
having this problem and definitely charging below the amount...
i cant fully charge the battery as well
Like I said, if connected, but not started, to your computer, you'll have enuff time to start it then and entering the bootloader, of course, you gotta be quick for this to work.
If it doesn't respond, don't laugh, confirmed to work, remove your battery like explained and put it for some mins in the fridge before replacing it (it's only chemistry playing here, somehow better than cutting a USB cable in 2).
jemaho said:
Like I said, if connected, but not started, to your computer, you'll have enuff time to start it then and entering the bootloader, of course, you gotta be quick for this to work.
If it doesn't respond, don't laugh, confirmed to work, remove your battery like explained and put it for some mins in the fridge before replacing it (it's only chemistry playing here, somehow better than cutting a USB cable in 2).
Click to expand...
Click to collapse
You know nothing about chemistry at all! Cold kills battery charge if your going to use temperature use your armpit for 5 mins!
double post oops please delete
lilikin said:
double post oops please delete
Click to expand...
Click to collapse
"storing them in the freezer might be more practical. These kinds of batteries lose their charge after a few days when kept at room temperature. But they'll retain a 90% charge for months if you store them in the freezer. Just like alkaline batteries, you'll need to wait until they've warmed up before using them. However, this isn't a problem when you need new batteries for your digital camera or other electronic gadget. "
I suggest you to be more polite when answering and learn your lessons before posting!
I finally made a dual boot Android/WP7.
At first, Android said my battery was fully charged, just like WP7, which is totally impossible as I used MAGLDR to format the SD card (wp7 & android partitions) and that it took me almost 1hour, without any possible way to charge the battery while I'm in bootloader mode.
But when I turned the phone off, plugged into the wall.......TADAA It was finally charging, with phone turned off
So, it seems that dual boot may be a way to solve this issue
jemaho said:
"storing them in the freezer might be more practical. These kinds of batteries lose their charge after a few days when kept at room temperature. But they'll retain a 90% charge for months if you store them in the freezer. Just like alkaline batteries, you'll need to wait until they've warmed up before using them. However, this isn't a problem when you need new batteries for your digital camera or other electronic gadget. "
I suggest you to be more polite when answering and learn your lessons before posting!
Click to expand...
Click to collapse
You're arguing against yourself here aren't you? Cold may be fine for storage but you need heat to coax a little more power out. You even say 'you need to wait until they've warmed up before using them'.
adminlt said:
I am cutting the cable as I write. Will take some pics.
Click to expand...
Click to collapse
If you could do some pics that would be great...I have two, "My computer's broken," calls to deal with today. Visuals might help some...it's appreciated.
Wrong idea, sorry guys.
I thought that HD2 was charging since I installed WP7 and Android in Dual Boot. But it's a fake : if the phone is turned off, and that I plug it, the orange led turns on. But that's all, even if I unplug the phone, the led remains turned on !!
And now, Android as well as WP7 are telling me that the battery is fully charged but I'm sure it's not even 50% full.
Hey XDA, long time no see!
Just got this phone, and I can say I'm loving every inch of it! (Coming from a Desire HD)
But I have a single question:
When I have the cellphone plugged in the charger, and it reaches 100%, a notification pops up in the notification bar saying something I don't understand.
My cellphone is in another language, but directly translated it says: "Battery is full. Turn off to save energy."
I'm not worried or anything, but I couldn't find anything about it anywhere, and I'm starting to wonder why LG want's me to turn off my phone when it's charged completly!
Thanks in advance!
virtual-aidz said:
Hey XDA, long time no see!
Just got this phone, and I can say I'm loving every inch of it! (Coming from a Desire HD)
But I have a single question:
When I have the cellphone plugged in the charger, and it reaches 100%, a notification pops up in the notification bar saying something I don't understand.
My cellphone is in another language, but directly translated it says: "Battery is full. Turn off to save energy."
I'm not worried or anything, but I couldn't find anything about it anywhere, and I'm starting to wonder why LG want's me to turn off my phone when it's charged completly!
Thanks in advance!
Click to expand...
Click to collapse
Once it hits 100% battery, the phone will continue to charge slower than normal in order to keep the phone at 100%. It just means your still using a small amount of electricity to keep the phone charged even though it's already at 100%. I just ignore that message and keep it on the charger.
Ploxorz said:
Once it hits 100% battery, the phone will continue to charge slower than normal in order to keep the phone at 100%. It just means your still using a small amount of electricity to keep the phone charged even though it's already at 100%. I just ignore that message and keep it on the charger.
Click to expand...
Click to collapse
Ah I see. It's probably just the weird translation that makes me think I have to turn off the phone
Plus the fact that I have never had a phone which told me anything about slow charging, which I knew it would do when it hit 100%
Thanks sir!
Sent from my LG-D802 using xda app-developers app
Ok.. I turned my phone into english, and now when I get the message, it tells me "unplug to save energy."
Is LG really telling me that the charger can't just by pass the battery when it's charged and that I should unplug it?
I havn't unplugged it when I sleep, so far no problems (no heat either, so the battery is indeed shutting off when charged completly).
Why the hell is LG recommending me to take out the charger at night?
I just swipe that notification away when it comes. I also use plastic grocery bags and leave my appliances plugged in when not in use! I?
VZW LG G2
Ok I've not seen any threads quite like my issue, so I'll try to explain best I can. Ok, here I have an N7 (2012) wifi. Now, I work in electronics therefore know a bit about charging etc, so I've got the back off it to measure the voltage directly at the battery terminals. I have 4.2V across it - which is about as high as you want a 3.7V cell to reach at full charge. Also the unit (powered off or on, with screen off) is drawing about 17mA from my bench PSU (set to a 2.5A limit, @ 5.25V), which is what I'd expect of a full battery, along with the fact it's up at 4.2V.
However, and this is the bizarre bit - unplug it, and the unit bleats away saying there's 5% battery left. So, back in with the power, it says charging. Leave the screen to go off. Check it about an hour later, the unit isn't switched on. Boot it up, it bleats again saying 2% left. Take out the power and put it back in. Charging again (allegedly). So I look in the battery section of settings to see what had occurred over this last hour or so... and according to the graph, while I had left the unit to charge, it rose from 5% to 15% over a period of around half an hour, then steadily DISCHARGED for the next half hour right down to 0, and switched off !! Situation now - it's "charging", and has been sat at 2% for about two hours. However, as expected, on another battery check, guess what - still at 4.2V - fully charged, about where it has been throughout. Well the lowest I saw it go was actually 4.13V.
Any help would be appreciated here, as I can't see what the problem is, other than the battery is full and the os thinks it's empty. It was doing this on android 4.2, and I've since updated it to 4.3, and then 4.4.2. Same results, no change. I've also performed a factory reset via the os, and a hard reset (factory wipe/reset) via recovery. This is really strange, never come across this ever before. As I say, I've seen lots of battery issues experienced by N7 2012 owners, but nothing quite this odd!
Here's a screenshot of this evening:
Stranger and stranger. Long spell of charging, then it goes straight to 0%. So I leave it turned off for a while (not connected to charger), then turn it back on and miraculously it now has 32%! Which then jumps straight to 0 a few mins later. Now switched back on again, and it's back up to 24%!! See attached.
Bizarre.
Your situation is unusual, for sure. I had a situation where a rogue app consumed power faster than my N7 charger could supply it. Killing the app stopped the madness. Have you checked battery usage?
I would reinstall your ROM, as corrupted software seems to be the likely cause.
First thing I would check before messing with reinstalling ROMs or similar actions, is take the back off the device, and ensure the battery plug is firmly seated and not loose or crooked.
I had similar erratic behavior pop up all of a sudden, and this was the culprit.
Yep done that, it's on official 4.4.2, also done a factory reset and a hard reset, neither made a difference. The thing is, the battery voltage is around 4.1 to 4.2V at all times, indicating it's fully charged. Checked connector as well, no loose connections at all. Very odd indeed.
When I first got my nexus 7 1 year ago
I got the same problem
Then I found out it was the stock charger
Then I got a 2.1a charger and that fixed the problem.
My battery never got to 5v
4156mv = 4.1v
And it charges at 1500ma
If it were off then it will be 2000ma
remove the battery and put it back, it may help and also charge while it's turned off
USBhost said:
.... 41560mv = 4.1v
Click to expand...
Click to collapse
You sure about that??
spark001uk said:
You sure about that??
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No lol the 0 should not be there
USBhost said:
No lol the 0 should not be there
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Ah OK, thought so! Also when you say your battery never got to 5V, did you mean across the battery itself? If so 4.1V sounds almost fully charged to me. It's a 3.7V li-po so 4.2V across it would be the absolute max.
Also I have this handy little gizmo, tells me precisely how much current I'm pulling on a USB line, and also the voltage.