Develop Bugs

My GN battery could only charge up to99%?

Hi, after three times full cycle charge(one through the socket on the wall and two via usb). I found my galaxy nexus battery could only be charged up to 99%, even there is a "complete" showed on the locked screen.
So do i need to reset my phone xia bootloader or anybody know how to solve that? Many thanks!!!!!!
Sent from my Galaxy Nexus using XDA App

flyhighln said:
Hi, after three times full cycle charge(one through the socket on the wall and two via usb). I found my galaxy nexus battery could only be charged up to 99%, even there is a "complete" showed on the locked screen.
So do i need to reset my phone xia bootloader or anybody know how to solve that? Many thanks!!!!!!
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Known, this is for battery protection.For example sgs2 showed 100% but it is not actually 100%.Galaxy Nexus shows the correct level.Dont worry

Mine only goes up to 97%! Very annoying.
Sent from my Galaxy Nexus using Tapatalk

98% here! Although I've gotten used to it now.

RTContent said:
98% here! Although I've gotten used to it now.
Click to expand...
Click to collapse
Have you guys tried to turn off your phone and then let it charge once it is full turn it back on? I noticied that was the only way

I was about to post here to ask about this, as I've noticed it as well. Good to hear it's normal, but I'm curious how it protects the battery.

This is standard charging behaviour and happens on the Nexus S too (which is currently my phone). There were similar questions on the Nexus S general forum about this behaviour too.

It is for increasing battery life. You should not charge it to maximum or discharge it completely. It's a well known fact about Li-Ion batteries...

afilopou said:
Known, this is for battery protection.For example sgs2 showed 100% but it is not actually 100%.Galaxy Nexus shows the correct level.Dont worry
Click to expand...
Click to collapse
Thanks mate~ I am new on Android, so just curious about this....

I have this issue too. I have noticed that if I unplug it and plug it back in, it will charge to 100%. I had assumed it was because I was using the Samsung 700ma charger. Guess not.
I have noticed my Galaxy Tab 7 does the same thing, but it will show 100% until I unplug it then it will go down immediately to a lower level, I plug it back in and let charge and it goes to 100%.
I have guessed that what is happening is that once it charges to 100%, it stops charging and starts using battery, thus the decrease. I have not watched it to try to catch it as soon at it done charging to see if this is the case as I always charge overnight.
I would guess that if I let it get low enough, it would start charging again. I know my laptop will not charge the battery unless it is 90% or less to prevent top offs that shorten battery life.

ankitb4u said:
Have you guys tried to turn off your phone and then let it charge once it is full turn it back on? I noticied that was the only way
Click to expand...
Click to collapse
will try this tonight！

robinsmy1 said:
I have this issue too. I have noticed that if I unplug it and plug it back in, it will charge to 100%. I had assumed it was because I was using the Samsung 700ma charger. Guess not.
I have noticed my Galaxy Tab 7 does the same thing, but it will show 100% until I unplug it then it will go down immediately to a lower level, I plug it back in and let charge and it goes to 100%.
I have guessed that what is happening is that once it charges to 100%, it stops charging and starts using battery, thus the decrease. I have not watched it to try to catch it as soon at it done charging to see if this is the case as I always charge overnight.
I would guess that if I let it get low enough, it would start charging again. I know my laptop will not charge the battery unless it is 90% or less to prevent top offs that shorten battery life.
Click to expand...
Click to collapse
the way you used is exactly what my friend told me to do. He has the same issue, and if he unplug the charger when a 'complete' showed on the locked screen and replug it, you could get a 100%!!

Same problem here but I dont care.

I had this problem. My GN would only charge to 98% so I left it on charge for nearly 8 hours and it eventually got to 100% I carried out a battery calibration using this app from the market and its been perfect ever since I've even noticed an increase in battery life
https://market.android.com/details?id=com.nema.batterycalibration
Sent from my Galaxy Nexus using xda premium

flyhighln said:
the way you used is exactly what my friend told me to do. He has the same issue, and if he unplug the charger when a 'complete' showed on the locked screen and replug it, you could get a 100%!!
Click to expand...
Click to collapse
Your not supposed to do this. Charging to 100% and/or letting it drop to 0% decreases battery life in the long run. This applies to all LI-ION batteries, in your laptop, or anything else.
You people that complain about 96-99% just need to get over it. It's like that for a reason. Don't go chasing mods the charge it to 100%, or ways to trick it into saying 100%, just accept that when it says charged it is.
edit: Sorry if I come off as an 8==D. Just tired of seeing posts like this (the nexus S does the same thing. Its by design for a reason.)

My galaxy nexus charges all the way to 100%. But when i leave it charging overnight, when i wake up its on 97%. I think its a built in safety feature to prevent the phone from charging when left plugged in for an extended period.
Sent from my Galaxy Nexus using Tapatalk

Oh good to know this is intentional.

Phone charging really slow??

So my s2 has been charging really slow, like today it took like 5 hours to fully charge, and when connected to charger if I'm using it it wont charge very well, like the battery will stay at lets say 20% when im using it and charging it, it might even go down more. it used to charge pretty well even if I was on it. Cuz this be the charger, or is my battery messed up?? Im using the charger that came with the phone.
Sent from Flip's SGS2

Are you charging through a usb port on your computer or ac? If it is with usb port then yes it will charge at a much slower rate. Also if you have a lot of apps running or backround data going it will also cause your charging to slow down some. I would say through usb without any apps open and backround data stopped It would take a few hours to charge say from 20%. Through AC in the same condition probly 1.5 hours. Try to reboot your phone and then plug it in to charge to see if that doesnt speed it up any. If it does then you know you have backround data moving at a fast rate and that would be your reason to slow the charge down.

Yeah I'm charging with the wall charger, not thru usb
Sent from Flip's SGS2

thats pretty weird...have you tried using another usb cable?? maybe the cable is faulty?

Calibrating the battery
elflip88 said:
So my s2 has been charging really slow, like today it took like 5 hours to fully charge, and when connected to charger if I'm using it it wont charge very well, like the battery will stay at lets say 20% when im using it and charging it, it might even go down more. it used to charge pretty well even if I was on it. Cuz this be the charger, or is my battery messed up?? Im using the charger that came with the phone.
Sent from Flip's SGS2
Click to expand...
Click to collapse
You could try calibrating the battery, maybe. To do that, turn the phone off. Charge to full (make sure it's full, by taking it off of the charger and putting it back on...the indicator should read 100% almost immediately when reattached to power).
When the battery is full, with the phone still turned off, remove the battery for about 2 minutes. After 2 minutes, reinsert battery and restart phone.
Battery will be calibrated. This may not resolve the problem of a slow charge, but will clear 'battery memory' which may have been preventing it from charging completely (and, I suspect, may have inhibited charging).
Good luck!

I was using an aftermarket wall charger and had similar results. Switched to the USB/AC converter that came with the phone and all was well.

sean is here. said:
You could try calibrating the battery, maybe. To do that, turn the phone off. Charge to full (make sure it's full, by taking it off of the charger and putting it back on...the indicator should read 100% almost immediately when reattached to power).
When the battery is full, with the phone still turned off, remove the battery for about 2 minutes. After 2 minutes, reinsert battery and restart phone.
Battery will be calibrated. This may not resolve the problem of a slow charge, but will clear 'battery memory' which may have been preventing it from charging completely (and, I suspect, may have inhibited charging).
Good luck!
Click to expand...
Click to collapse
Yes, try Battery Calibration from the market. Only works on rooted devices, and follow instructions.

Battery Calibration
abctilly said:
Yes, try Battery Calibration from the market. Only works on rooted devices, and follow instructions.
Click to expand...
Click to collapse
Actually, one doesn't need an app to calibrate the battery. If you follow the instructions above, the app is unnecessary. And the phone mustn't be rooted

YODA? ^^^^

Hey elflip88, have you found the issue yet?
I have the same problem on my HTC Amaze 4G. It's charging 1% every 3 minutes (adds up to 5 hours)
I'm also using the wall charger...oh damn, I'm starting to think I have a faulty device / battery...
yelp!

For the record Samsung devices are known to be slow at charging so with that considered.... You still shouldn't be at 5 hrs. I would find a battery stats app charge your battery over night and check the chart to see exactly how long it takes to go from 0 - 100. Make sure your batter status is good. Also check the voltage coming into your phone from your charger. There are plenty of battery stat apps in the market that will do this sort of thing. Of course make sure your battery doesn't have water damage of course too lol.
Sent from my SGH-T989 using XDA App

I've had the same problem with mine. But, I can get 1.5 days without charging and moderate usage. Charge it up, drain it, charge it back up then wipe your battery stats in recovery.

This may help if you're using an aftermarket wall charger
If you guys are having issues with slow charging using an aftermarket wall charger, it could be that the phone is charging in a USB state rather than an AC charging state. QuickCharge could alleviate your issues. The cable is inserted between the wall charger and the USB cable that goes to your phone. You can find the product on Amazon. It's the 2nd of 3rd item from the top when you search 'QuickCharge'.

I find that when I fully drain my battery and charge it, it's really slow. Once the phone has enough battery to stay on, I unplugged it and replugged it and it charges normal again.

elflip88 said:
So my s2 has been charging really slow, like today it took like 5 hours to fully charge, and when connected to charger if I'm using it it wont charge very well, like the battery will stay at lets say 20% when im using it and charging it, it might even go down more. it used to charge pretty well even if I was on it. Cuz this be the charger, or is my battery messed up?? Im using the charger that came with the phone.
Sent from Flip's SGS2
Click to expand...
Click to collapse
It's your wifi and your apps using wifi. Turn wifi off while charging. I used to charge 4 hours + on my S2. Reduced to 2 and some change when I turn off wifi.
Also, I struggle to make it through a working day with wifi on. Turn wifi off and I can do 4 days no problem.

audscott said:
I was using an aftermarket wall charger and had similar results. Switched to the USB/AC converter that came with the phone and all was well.
Click to expand...
Click to collapse
I've had the same problems using an aftermarket wall charger.

I old suggest using a different outlet if you haven't done that yet.
Sent from my SGH-T989 using xda

What? Wifi (while connected) users significantly less power than 3g or HSPA+ (4G) data..
Sent from my SAMSUNG-SGH-I727 using XDA

i had that issue once, it had to do with my ROM i imagne... i flashed a new one and i havent had a problem ever since.

i m using this wall charge and use this battery... it is working fine and no problem at all
http://www.ebay.com/itm/Anker-Battery-for-Samsung-Galaxy-S-II-from-T-mobile-
http://www.cellphoneshop.net/hdw179...ccessories&hash=item4ab527cf3b#ht_2001wt_1396

Phone stuck at 99% while charging

I'm on FB17 and my phone is getting really hot while charging is stuck at 99%. It's been like this for a couple hours. anyone know what's up?
Sent from my SPH-D710 using XDA App

Is something running? When you're plugged in, you're still running off the battery. Mine only goes 100% if it's in standby while plugged in.

Nothings running at all
Sent from my SPH-D710 using XDA App

Turn off the phone and let it charge.
If that doesn't work, pull the battery and let it sit for 2 minutes

Yeah, I'm having the same issue. Also read a few others were as well. I'm going to try and recalibratey battery. Ill keep you posted.

+1 to Nibrs' comment. I would shutdown the phone completely, let it take a full charge WITHOUT the android OS running, unplug the charger, remove the battery for a few minutes then boot the phone back up. After it's been up and running and settled in, plug the charger back in once again. It could take 30-45 minutes to finish this last trickle charge.

I've had this issue since cm9 alpha 1. Don't really care.
Sent from my SPH-D710 using XDA

Aganar said:
I've had this issue since cm9 alpha 1. Don't really care.
Click to expand...
Click to collapse
Thanks for your non-contribution to this thread.

Alright, are calibrating didn't work ( might of helped battery life tho) it charges to 100% only when my phone is off. As soon as I turn it on, its at 99%. I miss my blue led.
Sent from my SPH-D710 using XDA

Mine will be stuck on 99% for a long time also but mine will eventually say 100%. It has to do with how the battery is charged. Once it gets to a certain point it only does a slow trickle charge to maintain the battery level. So for the 99% part it's supposed to do that but you shouldn't have those heat issues. Did you flash a new ROM recently by chance?

MeWarning said:
Mine will be stuck on 99% for a long time also but mine will eventually say 100%. It has to do with how the battery is charged. Once it gets to a certain point it only does a slow trickle charge to maintain the battery level. So for the 99% part it's supposed to do that but you shouldn't have those heat issues. Did you flash a new ROM recently by chance?
Click to expand...
Click to collapse
Since GB my phone has done this same thing. I just figured its an ICS thing...really if u think about it, ur phone is at 100% while charged...u unplug it and it is using battery so you're at 99.999 percent off the bat...seems like the phone just doesn't round less than whole numbers.
Sent from my SPH-D710 using XDA

dante32278 said:
Since GB my phone has done this same thing. I just figured its an ICS thing...really if u think about it, ur phone is at 100% while charged...u unplug it and it is using battery so you're at 99.999 percent off the bat...seems like the phone just doesn't round less than whole numbers.
Sent from my SPH-D710 using XDA
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Click to collapse
You're not actually fully charged when you unplug it. It would be in the 90% area because it doesn't constantly charge the battery. It stops once it gets to a certain point and then will start charging again once the battery hits a certain minimum level.

Well, took almost 12hrs of charging but finally got to a 100%. Btw. I'm on blu kuban rom. Not sure if its a ics bug or a battery issue. Never had this happen in stock.
Sent from my SPH-D710 using XDA

I think it is supposed to float between 95% - 100% to avoid damaging the battery.
Sent from my SPH-D710 using XDA

Don't know if this a factor but had this happen today on ff09. Battery jumped from 54% to 10% on one reboot (phone was hot)... Rebooted again and back up to 26%.
Got home, plugged in on LG cord to 99%. Changed to Sammy charger, finished 2 hrs later.
Sent from my SPH-D710 using XDA

tdunham said:
+1 to Nibrs' comment. I would shutdown the phone completely, let it take a full charge WITHOUT the android OS running, unplug the charger, remove the battery for a few minutes then boot the phone back up. After it's been up and running and settled in, plug the charger back in once again. It could take 30-45 minutes to finish this last trickle charge.
Click to expand...
Click to collapse
That's awesome info, I'll have to try that. Thanks!
Sent from my SPH-D710 using XDA

How many cycles have you gone since flashing? I have been on blu kuban for over a month now. I update the instant I see an update. Most times it takes around 3 full battery cycles before I see decent life. This last update seemed to take longer than usual to see normal battery behavior. First I would try draining battery to 5%, run battery calibration script in the updater then fully charge and calibrate again. If it continues I would recommend the standard restore to stock and reinstall.
Sent from my ridiculously long named phone ---
Sprint Samsung Galaxy S II Epic 4G Touch

[Q] This is not the usual "battery thread"

I understand this is a sensitive subject to bring up, as there are 10 battery threads popping up each day.
But I think I have an unusual battery problem...
My Galaxy Nexus eats pretty much the same amount of juice whether it's powered on or completely powered off, and I get about 8h out of my batteries.
I have 3 batteries, and all of them give me about the same battery time.
I just did a short test:
1. Charge battery in cradle to full.
2. Put the fully charged battery into the phone.
3. Power on phone, and check battery - 99%
4. Power off.
5. Power on the phone 30 min later, and the battery is down to 91%
Can anyone out there give me a hint as to what can possibly drain my battery when the phone is powered off?

pejan said:
I understand this is a sensitive subject to bring up, as there are 10 battery threads popping up each day.
But I think I have an unusual battery problem...
My Galaxy Nexus eats pretty much the same amount of juice whether it's powered on or completely powered off, and I get about 8h out of my batteries.
I have 3 batteries, and all of them give me about the same battery time.
I just did a short test:
1. Charge battery in cradle to full.
2. Put the fully charged battery into the phone.
3. Power on phone, and check battery - 99%
4. Power off.
5. Power on the phone 30 min later, and the battery is down to 91%
Can anyone out there give me a hint as to what can possibly drain my battery when the phone is powered off?
Click to expand...
Click to collapse
your batterstats can be off a little, or your 3 batteries are bad.

pejan said:
I understand this is a sensitive subject to bring up, as there are 10 battery threads popping up each day.
But I think I have an unusual battery problem...
My Galaxy Nexus eats pretty much the same amount of juice whether it's powered on or completely powered off, and I get about 8h out of my batteries.
I have 3 batteries, and all of them give me about the same battery time.
I just did a short test:
1. Charge battery in cradle to full.
2. Put the fully charged battery into the phone.
3. Power on phone, and check battery - 99%
4. Power off.
5. Power on the phone 30 min later, and the battery is down to 91%
Can anyone out there give me a hint as to what can possibly drain my battery when the phone is powered off?
Click to expand...
Click to collapse
If your phone is draining a significant amount of battery over a matter of several hours....say...20-30% or more during an eight hour period of being turned off, then something is wrong with your phone or batteries (less likely with all three).

I suppose it's possible that all 3 batteries are bad, but I find it unlikely as I didn't buy them at the same time.
I have tried to reset the battery stats from the CWM recovery menu, but I read earlier today that resetting the battery stats does not influence battery time.
8h, then the phone shuts off.
Or leaving the phone powered off for about the same time, I can't power it on as the battery is completely drained.

Once your battery is fully charged it will stop charging the phone but continue to display that it's "charged" until it drops below 90%.
After you restart the phone it will display the current charge.
Sent from my Galaxy Nexus using xda premium

El Daddy said:
Once your battery is fully charged it will stop charging the phone but continue to display that it's "charged" until it drops below 90%.
After you restart the phone it will display the current charge.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
His batteries die when the phone is off. Did you even read the thread?
Sent from my GT-I9300 using Tapatalk 2

joshnichols189 said:
His batteries die when the phone is off. Did you even read the thread?
Sent from my GT-I9300 using Tapatalk 2
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Click to collapse
Yes I did read his post. I wrote what I thought was happening. It has been a common thing people have been confused about on android since day one.
In other news... You sure love your condescending replies don't you?
Sent from my Xoom using xda premium

El Daddy said:
Yes I did read his post. I wrote what I thought was happening. It has been a common thing people have been confused about on android since day one.
In other news... You sure love your condescending replies don't you?
Sent from my Xoom using xda premium
Click to expand...
Click to collapse
When your battery dies when it is off it is not doing what you are describing.
Implying you didn't read.
Sent from my GT-I9300 using Tapatalk 2

El Daddy said:
Once your battery is fully charged it will stop charging the phone but continue to display that it's "charged" until it drops below 90%.
After you restart the phone it will display the current charge.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Fyi that was only true on previous nexus like the nexus one. The gnex driver does not work this way anymore.

Might be a rouge app. Post a picture of your battery stats.
Swyped on my CM9 Galaxy Nexus

The other question is if the problem is a new one or something that's been going on since the phone was new?

He said even if his phone is off.
All these points to hardware issue.
Sent from my Galaxy Nexus using XDA

It is weird that the batteries drain when the phone is off.
Heck, even with only display off you should get even longer battery life.
But.... eight hours of battery life per day for the Gnex sounds "Normal" and "Right" to me!
If all three batteries are the same, than you should check the next logical step. Bigger Batteries.
Here is one from Amazon...
"Seidio BACY38SSGNLN-BK Innocell 3800mAh Super Extended Life Battery"

Hardware issue with the phone.
There is no way you should be draining a charged cell in 8 hours.
..this might be silly...but have you tried charging the batteries in the phone itself? (sounds like you charge them externally only)

defective hardware
I agree that it is probably defective hardware.
When a device is powered off, the battery should drain very slowly.
It might still be helpful if we could see a picture of your battery stats.
Here is mine, and you can see my screen is taking most of the battery life.
Which is because I have it set for max brightness.

Battery Problem?

One night my phone was dying so plugged the charger up at 1% but even with the charger in it went to 0 then cut off. no "powering down" pop up like normal so i went to bed and let it charge. when i woke the next day after about 8 hours it was on 76%! normally it would have been fully charged. Now its really long to charge. Can someone help and tell me what's going on?

Donte21 said:
One night my phone was dying so plugged the charger up at 1% but even with the charger in it went to 0 then cut off. no "powering down" pop up like normal so i went to bed and let it charge. when i woke the next day after about 8 hours it was on 76%! normally it would have been fully charged. Now its really long to charge. Can someone help and tell me what's going on?
Click to expand...
Click to collapse
Is there any app loading in the background? Strange though...

what ROM and setups are you using ?? some of the 4.2.2 roms charge really slow and if you are not using the charger that came with the phone than it would take longer

I'm using Cm 10.1 normal settings. I haven't been using the charger that came with the phone ever. It started acting only after it shut off at 0%
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

its not recommended using other chargers it sounds like you are not getting enough juice from that charger/wire..... but if you are make sure your battery never dies because the more it dies the more strain you are putting on that battery also you will be better off using the usb wire and a computer to charge are you familiar with FAST CHARGE ??? i would suggest getting another charger
Edit: i have a nexus 7 and i had your problem before i have an after market 10 foot usb wire to charge my phone but when you are using it or there is an app that is draining it it will not charge because there is not enough power coming from the wire but if i use my factory charger for the nexus all is good on low battery and it charges so yeah ... just an fyi

also ive noticed that with some kernels that the battery charges faster
but just play around with different roms or just get a new stock charger

If u are using AOCP with stock kernel, idk why but it has ridiculous slow charge. Install a different kernel and you should be fine