Develop Bugs

[Q] Battery Not Charging Completely

I just purchased a used Galaxy S3 and have had it for a couple of days already. This is what my normal charging routine is with any phone I have owned:
I shut the phone off before I go to sleep at night (usually around 11:00 pm) and plug it in. I'll get up at 6:00 am, unplug it and turn it back on. I've noticed though that with my new phone for the past 2 mornings, the red LED light is still on when I unplug it and when I turn the phone on, I immediately check the battery status and it has only charged as high as 92%. I am using the original wall plug (5V-1A) but the usb cable is not original. I also tried using 2 different ones with the same results. I'm just wondering what the problem could be and if anyone else has had this issue and what they have done to correct it? Thanks...

Try to reset the battery in CMW

Sorry, I should have also mentioned that the phone is bone stock for now...

Soooo, last night I tried a third micro usb cable and I drained the battery all the way down to the point where the phone shut itself off. I then plugged it in for the night and the charging light was finally green this morning. However when I turned the phone on, the percentage still only showed that it was at 92%. I'm not sure what else to try and who knows, could the battery be borked?

How long does the battery last? Just because the battery meter says 92% doesn't mean its not full, it could just be calibrated incorrectly. Put another way, as far as the OS know 92% is as far as the battery charges even thought the battery is at maximum capacity. Unfortunately im not sure if there is way to reset the battery meter without root access.

Yesterday the battery lasted a little over 16 hrs. That's with mobile data shut off, gps off, bluetooth off and pretty much everything else. I sent a hand full of texts, around 3 hours of wifi usage and about an hour of music. I can't really think of anything else I used it for...

If you are getting 16 hours on a stock battery there isn't anything wrong with it :good:. If the calibration of the battery meter bugs you enough you can always root it and reset the battery stats, either from CWM recovery or with a capable app. I have SD Maid which can do this with root access, but im not sure if the feature is available in the free version. Im sure there are other apps on the market that can do this as well, possibly free ones, but im almost certain they will require root to do so. If you do, charger the battery overnight to ensure a full charge, if possible use a usb power source instead of the wall adapter. This is a slower charge and actually can achieve a fuller battery charge. As soon as you remove the phone from the charger reset the stats and let it run down to nearly dead, i would probably do this twice to give the battery meter a good high/low limit.

Thanks! I will try this once I've exhausted all other possibilities that may be causing this. It does bother me a bit I'm not sure why. Maybe my OCD kicking in lol! I've just pulled the back cover off and the battery in it is 3.8V and 7.98Wh. The model number of it I believe is GB/T18287-2000 and below that it also shows 4.35V. Can anyone confirm if this is even the correct battery in it for this phone? Thanks...

That is the correct voltage and wattage....so yes it is the correct battery.

Thank you...

So another morning went by with the same issue and i figured i had to try something else. I went into The Source after work and went ahead and purchased the extra battery kit they sell (comes with the battery and a battery charger/stand) making sure that i could return it if it turned out that it didnt solve my problem. So i took my old battery out of the phone and when i turned it over i noticed a dent and a crease running down one side of it (probably the culprit). I put the new battery in, plugged the phone in and a little while later i got a green light and a 100% battery status! I was worried that there was something actually wrong with the phone but a $50 gamble later and im good to go. Oh i also tried charging the old battery in the charger but it would not finish the charging cycle (wouldnt go green after 3 hrs in it and the battery according to my phone was at 80% when i took it out).
Sent from my SGH-I747M using xda app-developers app

DrJohnnyFever said:
So another morning went by with the same issue and i figured i had to try something else. I went into The Source after work and went ahead and purchased the extra battery kit they sell (comes with the battery and a battery charger/stand) making sure that i could return it if it turned out that it didnt solve my problem. So i took my old battery out of the phone and when i turned it over i noticed a dent and a crease running down one side of it (probably the culprit). I put the new battery in, plugged the phone in and a little while later i got a green light and a 100% battery status! I was worried that there was something actually wrong with the phone but a $50 gamble later and im good to go. Oh i also tried charging the old battery in the charger but it would not finish the charging cycle (wouldnt go green after 3 hrs in it and the battery according to my phone was at 80% when i took it out).
Sent from my SGH-I747M using xda app-developers app
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Click to collapse
Yikes! Lucky you noticed this before it turned into a big problem. With visible physical damage to that extent i would say the chances of that battery causing some serious damage is high, especially if it had went unnoticed and was used for extended periods of time. I would contact Samsung as they should replace the battery under warranty if the battery was in that condition coming out of the box.

See thats the thing. I bought the phone used and the issue was there since day one of owning it. Since these phones havent been out for a year yet, there should still be some kind of warranty on it and i guess it wouldnt hurt to try contacting samsung about it. Who knows, i could get a spare battery out of the whole thing.
Sent from my SGH-I747M using xda app-developers app

My only problem with that is who knows how it got that way, if it didnt ship from the factory in that condition Samsung shouldn't be held responsible.

True but how in the world could someone do that on purpose? The condition of the phone itself is about a 9/10. Unless they took it out for who knows what reason and dropped it and whatever else. I'll never know. Maybe i will just leave it alone. Everything is back to the way it should be...
Sent from my SGH-I747M using xda app-developers app

[Q] [SOLVED] S3 Slow Charge/Quick Drain

Hi,
Few days ago I noticed that my S3 was charging extremely slowly. I had it plugged in for 10 hours and it charged maybe 20%. I needed a full battery so I swapped the one from my battery charger (the official Samsung charger and battery), which was supposed to be at 100% according to the charger. Phone started up, battery was at 100%, and a few hours later it died.
Now, if I plug the phone in to charge it will gain a percent every 10 mins or so and it will only charge to about 54%. Doesn't matter how long I let it charge for, 54%. There was one instance where it charged to 100% but 2 mins after I unplugged the phone, it was back at 54%. The battery charger keeps charging the two batteries to what it says is full (green light on the charger), but when I put it in the phone it appears to only be between 10% and 50%.
Today, I took a battery which the charger said was at 100% and put it in my phone. Started the phone up, it said 2%. Put the same battery in my friends S3 and his phone said 98%. Back into my phone, 18%.
Things I've tried:
Leaving the phone plugged in for an extended period of time
Taking the battery out for 10 mins then putting it back in
Different chargers (some official Samsung, one BlackBerry, one no name)
Charging from USB and AC
Like I said, tried putting the phone in a different S3 and no problem with that. Only has a problem with my phone
Booted into recovery (TWRP) and it will report the same percentage as the OS
Tried to download a few different apps to check the current that was charging the phone but none of them worked for the i747m.
Also used Better Battery Stats to see if anything was draining the battery or had a partial wakelock. Nothing out of the ordinary.
When the problem first started I hadn't updated the software (CM 10.3) but was still planning on doing a restore later tonight.
I've searched xda and google but haven't come across anything that has worked. If anyone has any suggestions it would be greatly appreciated.
Thanks!

Restored back to stock last night using Kies "Firmware Upgrade and Initialisation", but that didn't help. I'm going to assume that is hardware at this point. Unfortunately, I'm out of my warranty. Right before it ended I took the phone in for repairs and they replaced the micro usb port. Could this be causing the issue? I had originally thought this but like I said, if I take the battery out and put it in another phone it sees it as being at 100%.

mcgrandlej said:
Restored back to stock last night using Kies "Firmware Upgrade and Initialisation", but that didn't help. I'm going to assume that is hardware at this point. Unfortunately, I'm out of my warranty. Right before it ended I took the phone in for repairs and they replaced the micro usb port. Could this be causing the issue? I had originally thought this but like I said, if I take the battery out and put it in another phone it sees it as being at 100%.
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Click to collapse
You said the phone itself will only charge the battery to what your phone reports as 54%, correct? What i didn't see was at that stage did you try it in the other phone? Just trying to determine if the phone is actually charging to 100% or not. If it will only charge a battery half way it is entirely possible the usb port repair wasn't up to par but I find it hard to believe that it would cause such dramatic drain as well. If it does in fact charge the battery fully then your problem is more than likely with the sensor responsible for report battery condition. Whether the sensor is bad or is simply in need of recalibration is the question at that point. Regardless of the actual charge of the battery if the OS is being reported to that it is below tolerance threshold it will assume the battery is dead.

dntesinfrno said:
You said the phone itself will only charge the battery to what your phone reports as 54%, correct? What i didn't see was at that stage did you try it in the other phone? Just trying to determine if the phone is actually charging to 100% or not. If it will only charge a battery half way it is entirely possible the usb port repair wasn't up to par but I find it hard to believe that it would cause such dramatic drain as well. If it does in fact charge the battery fully then your problem is more than likely with the sensor responsible for report battery condition. Whether the sensor is bad or is simply in need of recalibration is the question at that point. Regardless of the actual charge of the battery if the OS is being reported to that it is below tolerance threshold it will assume the battery is dead.
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Click to collapse
Yes the phone only reports a 54% charge at most. I took a battery from my battery charger which was at 100%, put it in my phone which reported 2%, then immediately into another S3 which reported 98% and stayed that way for 5 or so minutes.
Given enough time (upwards of 10 hrs) charging the battery via the phone and the phone will report 100%. But then within a couple minutes the phone will report 54% and will discharge as normal.

mcgrandlej said:
Yes the phone only reports a 54% charge at most. I took a battery from my battery charger which was at 100%, put it in my phone which reported 2%, then immediately into another S3 which reported 98% and stayed that way for 5 or so minutes.
Given enough time (upwards of 10 hrs) charging the battery via the phone and the phone will report 100%. But then within a couple minutes the phone will report 54% and will discharge as normal.
Click to expand...
Click to collapse
It sounds to me like the sensor responsible for reporting the battery condition to the OS is screwy. It could either be bad and need to be replaced, which would most likely mean a motherboard, or just needs to be calibrated. You can try resetting the battery statistics from CWM recovery if i recall, i wasn't able to find the same option in TWRP if that is what you are using. Its an outside chance but certainly worth installing CWM to give it a try over replacing the MB. Lastly, if you haven't already tried you can try flashing back to stock and see if that corrects the problem. If it is software related this should work, if not you cant pretty sure its hardware.
EDIT: I loaded up the latest CWM and the option for resetting battery stats isn't there so either they removed it or i am just remembering this from some other device or ROM i used in the distant past. In any case i found THIS thread that should assist in attempting to recalibrate the battery reporting.

dntesinfrno said:
It sounds to me like the sensor responsible for reporting the battery condition to the OS is screwy. It could either be bad and need to be replaced, which would most likely mean a motherboard, or just needs to be calibrated. You can try resetting the battery statistics from CWM recovery if i recall, i wasn't able to find the same option in TWRP if that is what you are using. Its an outside chance but certainly worth installing CWM to give it a try over replacing the MB. Lastly, if you haven't already tried you can try flashing back to stock and see if that corrects the problem. If it is software related this should work, if not you cant pretty sure its hardware.
EDIT: I loaded up the latest CWM and the option for resetting battery stats isn't there so either they removed it or i am just remembering this from some other device or ROM i used in the distant past. In any case i found THIS thread that should assist in attempting to recalibrate the battery reporting.
Click to expand...
Click to collapse
Ya I tried flashing stock previously and that didn't help. I had considered resetting the battery stats but I read a lot of forum posts that said this didn't have any affect on the battery and was automatically done whenever the battery was fully charged (or completely empty can't remember which one).
I ended up taking it in to the provider but they said I would have to send it out to Samsung and pay the cost since it was out of warranty. They suggested that it would be likely that I would just end up with a new refurb for $150. Instead I took it into a shop nearby and they repaired the motherboard for $90. Got it back earlier today and so far it's working fine.

[Q] Extremely slow charging! HELP

Hi all, does anyone else having the problem of extremely slow charging on Galaxy Note 2?
It takes me more than 12 hours to charge from around 15% to 100%. I've read tons of threads, but none of them can fix the problem...here is my specific situation:
1. I use the original battery.
2. I use the original charger.
3. I use a socket rather than PC.
4. The charging current app suggests that my phone is charge normally, the current is normal.
5. I bought new original charger and original battery, but the problem is still there.
6. I killed all the apps running in the background when charging, problem remains...
7. Currently I use unofficial Cyanogenmod 11, but the problem emerged since I used Samsung official ROM 4.1.2. So I think the problem is independent with different OS.
However, I do find a "solution", that's it, reboot the device when I charge and stop at the interface of typing PIN code to unlock sim card. If I do so, the charging becomes normal, about 2hr 30mins. It seems that there is a unseen background app draining my battery, but I used all kinds of monitoring apps and none of these apps show that there is a background app draining my battery. And I think it doesn't make sense, because if there is a background app draining my battery, it should drain my battery as well when I'm not charging the phone. However battery performance is extraordinary especially I upgraded to 4.4.2 (Cyanogenmod 11), after one day usage I still can end up with around 40~50% battery. So I think I can rule out the possibility that there is background app draining my battery.
So, does anyone else having the same problem? How can I fix it? Do I have the reboot my phone every time when I want to charge? Anyone one has better solution? Thanks in advance!

My phone does not like extended batteries

Hey all,
I have done some searching around here and on the web but have not found anything (with a solution at least) similar to my problem. First off, here are the details on my phone:
SGH-I747M Galaxy S3 unlocked on Telus
Rooted on stock ROM
Running JB 4.3
Currently have CWM 5.5.3.7 installed
Now the problem:
My phone does not seem to enjoy extended batteries. I have attempted a few replacement batteries from battdepot.ca (their replacement is a 3.7V 2300mAh) and two of the Hyperion 2200mAh 3.7V replacements all with the same issue. I have sent the batteries back and had them tested and even had new ones sent to me and still the same thing happens so I am certain it is my phone. I have had this issue since before I rooted the phone and was on JB 4.1.2.
I charge the battery overnight every night and it usually says 100% in the morning. When I unplug the phone the battery percentage immediately drops down to 88%. When I get to work about 45mins later and look at the phone, the battery is usually around 94% (it always creeps up slowly to a max of 94% after unplugging it). If I plug the phone in at work it will go up and down between 96ish% and 84% but will not go back up to 100% unless I leave it charging for the whole work day... mostly it will then just hang around the 85% mark. Most times I still get pretty decent usage but other times the battery percentage will drop from 94% down to 15% and below.
I have tried "calibrating" the batteries to no avail. Has anyone else had this issue? Is there a way to fix it? I only have this issue with batteries above the stock 2100mAh.
Any help is much appreciated!

Where's my good battery life?

I have never had good battery life on my Galaxy Tab S 8.4 ever since I got it in April of 2015. I did a battery test using the Geekbench app and it gets only 4-5 hours of life. And since this is just screen on time, my battery normally drains much faster. I've tried 4.4 Kitkat, 5.1.1 Lolipop, and even 6.0 Marshmellow with no real difference to battery life. I have also tried battery monitoring and battery doctor apps, as well as deleting the batterystats.bin file and even ripping my tablet apart and reseating the battery connector. I've thought about replacing the battery, but the only battery i can find is from NewPower99 and that's $60.00, way too much for a battery in my eyes.

Plenty of battery`s on eBay.
http://www.ebay.co.uk/sch/i.html?_f...ttery.TRS0&_nkw=samsung+t700+battery&_sacat=0
John.

me too in my tab s sm t700
battery life is die quickly in stock rom 5.0.2

Keep your screen brightness as low as usable, avoid white or light screens as they use the most power it is a disadvantage of oled displays, I keep my display on auto -5
John.

dreamo.22 said:
me too in my tab s sm t700
battery life is die quickly in stock rom 5.0.2
Click to expand...
Click to collapse
Downgrade to KitKat, as the other day i upgraded to lollipop and the battery was dropping 1% every other min its a joke. So i downgraded to KitKat and it gives me easy 3 days use and that's heavy use T705!

How to downgrade t705 to kitkat

I use a built-in feature to keep the screen toned down. In the display settings, there is a reading more feature where I select the apps I primarily use, including my default launcher Nova Launcher, and it tones the screen brightness down while those apps are in focus. Like right now while I'm using the Tapatalk app.

sssmallvillee said:
How to downgrade t705 to kitkat
Click to expand...
Click to collapse
Head over to http://www.sammobile.com/firmwares/ download your firmware and flash using odin it's real simple!

Found this over at Android Central as last few days my battery has been all over the place, as it was fine before. Anyway my battery dropped to 5% turned it off. Waited a minute or so, turned it back on bat was showing 45% wow so i'm draining it again Ive let it drop to 5% again this is the 3rd run now its showing 42% crazy credit goes to rouge-hawkins
I had the same issue on my brand new Galaxy Tab S LTE version with Exynos chip. I was like WTF on the battery because the moment i disconnect it from the charger it would soon drop to about 85% in 5 minutes. Then the dropping continuous in huge leaps like from 70% down to 30% while i'm just browsing the web. Then when it came down to 5% it would turn off. The moment i plug in the charger while the device is off the battery level would start at 40%. It was erratic for 2 weeks. Good news is i was able to resolve this without doing factory resets.
What i did was the moment the battery came down to like 5% i completely turn off the tab and turn it on , the tab reported a higher battery level like 45% then i continued using and until it drops again to a lower level like 3%. I power cycled the tab again and it reported battery level at around 24%. I used it again until battery level went to 3% and rebooted it, then it reported 12%.. used it again until the device really wont boot anymore. Then i used a slow charger. I used the 1A usb charger from my other phone (while off) and waited until 100% full. Then things became normal.. it reports battery level fine after. I also installed Clean Master and disabled some background apps and Samsung bloatware that i really dont use. Everything is ok now and im happy with my Tab S 8.4... hope this helps for those who got their device over the holidays. I resumed using the 2.1A default charger and issue doesnt seem to repeat anymore.