Develop Bugs

Battery life discovery on reboot - a WTF moment.

I'm wondering if some if the perceived battery life issue is just that- perception vs. reality...
Could the phone's reporting of battery life be off? A bug?
Check this screen capture I took this weekend. I rebooted my phone, and instantly went from "plenty of battery" to "critical", and my camera flash wouldn't work... A real kick in the pants, since I was at a party:
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I had to plug the phone in on the drive home.
note, however, it was creeping up prior to plug-in, almost as though correcting for itself...?
Why would this happen?
Could this be partly why people are having (or thinking they are having) inconsistent battery performance?
Faulty or bug in battery reporting?
Note I'm on a stock (not rooted) phone, stock kernel.
Sent from my SPH-D710 using XDA App

you need to calibrate your battery. Have you gone from 100% to 0, then back to 100%?

Yep, first day I got my phone I did that.
I've plugged in nightly since, we're not talking a month since. Something is up with this.
Sent from my SPH-D710 using XDA App

geolemon said:
Yep, first day I got my phone I did that.
I've plugged in nightly since, we're not talking a month since. Something is up with this.
Sent from my SPH-D710 using XDA App
Click to expand...
Click to collapse
Have you switched kernel or ROM since calibrating? I do it every time I make one of those changes...lots of baked in unknown tweaks you know..
Sent from my SPH-D710 using xda premium

Might not be the same thing we're talking about, but it happens to me when I charge the phone while its off..
Sent from my GT-I9100 using xda premium

No- as stated above: stock phone, stock kernel, not rooted.
If I'm having this issue, as a fairly experienced Android user (including 2 prior phones that I did root, replace kernels, install custom bootloader and ROMs, without these "one click root" tools... "back in the day" on my old G1 when these luxuries didn't exist, you young'uns lol), i'm suspecting others may also find their systems report incorrect battery stats, might not be apparent if it didn't materialize via a reboot event, as I happened to do.
Sent from my SPH-D710 using XDA App

bruflot said:
It happens when you charge the phone while its off..
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I don't think I have, save for momentarily once or twice... A battery animation appears, showing charge level... I suspect using those same stats.
This is the first I experienced this type of materialization of incorrect battery stats, and would assume the above to be true, so I didn't take note if the charge % roughly matched at those times.
Would you expect the phone to handle power-off charging differently (other than quicker, for less resources in the background)?
Sent from my SPH-D710 using XDA App

geolemon said:
No- as stated above: stock phone, stock kernel, not rooted.
If I'm having this issue, as a fairly experienced Android user (including 2 prior phones that I did root, replace kernels, install custom bootloader and ROMs, without these "one click root" tools... "back in the day" on my old G1 when these luxuries didn't exist, you young'uns lol), i'm suspecting others may also find their systems report incorrect battery stats, might not be apparent if it didn't materialize via a reboot event, as I happened to do.
Sent from my SPH-D710 using XDA App
Click to expand...
Click to collapse
I had the same problem. Try rooting and getting the battery calibration app. I calibrated and now I can pull my battery whenever and it doesnt drop even 1%.

jermzz said:
I had the same problem. Try rooting and getting the battery calibration app. I calibrated and now I can pull my battery whenever and it doesnt drop even 1%.
Click to expand...
Click to collapse
Well, I've been intentionally not rooting, which is why I'm stock... with my prior phones, I've never been through an official update cycle... I'd like to see how that's pulled off actually. And form opinions of each - experience.
And also, I want to be (and stay) stable. For now at least.
This seems simply like a bug... not something that Samsung would advise to 'root to resolve' - trust me, someday my willpower won't be so strong, but I'm curious how to resolve this issue via "official means". It's a bug.
Is my only "stock" option to drive the phone through a full discharge/recharge cycle again?

I have this problem too
I calibrated battery with several apps, didn't help at all.
But it only happens when I reboot with the battery around 70% or below

justwonder said:
I have this problem too
I calibrated battery with several apps, didn't help at all.
But it only happens when I reboot with the battery around 70% or below
Click to expand...
Click to collapse
Interesting... That's EXACTLY what I'm seeing too.
I rebooted a couple times at work today to see, I hadn't even used 10% or 15% charge yet, the phone rebooted right back to where it was.
I just went to dinner with about 50% left, rebooted, and look what I got:
Note I drove home with navigation on intentionally trying to burn battery if that's my only option, you can see on the plot.
Sent from my SPH-D710 using XDA App

This has happened to me too but usually when the battery is below 30%. When I reboot the battery level drops to critical (around 5%). Gotta be a software bug.

Well.. Continuation of the above, I drained my battery until the phone shut off to effect a reset of stats:
Then plugged in, powered back up, and let the phone charge from 0% to 100% overnight while I slept in an "on" condition, since someone suggested charging while powered off may be part of the bug.
It'll be significant if this resolves the issue, as well as if it doesn't.
Sent from my SPH-D710 using XDA App

How do you calibrate your battery and what is The benefit form this?
Sent from my SPH-D710 using XDA Premium App

jprovan1 said:
How do you calibrate your battery and what is The benefit form this?
Sent from my SPH-D710 using XDA Premium App
Click to expand...
Click to collapse
It is supposed to calibrate the battery stats so your charge indicator displays an accurate charge state, but my evidence below shows we've got a bug here...
Sent from my SPH-D710 using XDA App

AFTER the above resetting of the battery stats:
Even more interesting...
Yesterday's full-discharge, full-recharge didn't seem to have much effect on this symptom:
That dropoff to the right corresponds to a reboot.
Anyone else experiencing this?
Try to reboot at about 40%-50% charge, and see if your phone reports a different charge level on reboot.
Appears to be a bug with the way the stock phone handles battery stats.
Sent from my SPH-D710 using XDA App

I had this happen a few times off and on over the past week - but NOT every time I rebooted, which seems weird. I woke up the other day with 60-something percent battery, and had to reboot for whatever reason. When it came back on 20 seconds later, I was sitting at around 8%.
I've also been having an issue where the phone doesn't charge while turned on and plugged in - Sprint is ordering me a new battery, so hopefully that fixes the charging part. Basically the battery overheats and stops charging after 15 minutes or so. I still suspect that may be a glitch in the software too, and not the battery considering I ws getting close to 30 hours of battery life a week or two ago...
As far as the sudden drop part, I'm hoping it doesn't happen again and that it was simply some kind of glitch. Obviously, if its happening after every single reboot, then it's probably software related.

Battery thread

Wow, this nexus is thirsty! Charged it twice today already and now charging again! I was expecting it to be bad but not this bad!
This I'm my first android phone so any tips to increase battery life will be greatly appreciated. I have turned off nfc and also all 3 location/GPS options but didn't change much. I also downloaded a application to kill running tasks etc.
Thanks in advance.
Sent from my Galaxy Nexus using Tapatalk

Matcarroll said:
Wow, this nexus is thirsty! Charged it twice today already and now charging again! I was expecting it to be bad but not this bad!
This I'm my first android phone so any tips to increase battery life will be greatly appreciated. I have turned off nfc and also all 3 location/GPS options but didn't change much. I also downloaded a application to kill running tasks etc.
Thanks in advance.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Hey.
Turn off background data and automatic account sync. Should save alot on power!
Personally, i wouldnt use a task killer. As ICS already has a task manager integrated.
Hope this works.
Sent from my X10 using xda premium

Matcarroll said:
Wow, this nexus is thirsty! Charged it twice today already and now charging again! I was expecting it to be bad but not this bad!
This I'm my first android phone so any tips to increase battery life will be greatly appreciated. I have turned off nfc and also all 3 location/GPS options but didn't change much. I also downloaded a application to kill running tasks etc.
Thanks in advance.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Juice Defender is your friend. The ultimate version is worth the money

This post slightly worries me. On the Evo, I spent half the freaking memory trying to keep my battery alive for more than 5 hours.
Future updates on battery life are truly appreciated.

Matcarroll said:
Wow, this nexus is thirsty! Charged it twice today already and now charging again! I was expecting it to be bad but not this bad!
This I'm my first android phone so any tips to increase battery life will be greatly appreciated. I have turned off nfc and also all 3 location/GPS options but didn't change much. I also downloaded a application to kill running tasks etc.
Thanks in advance.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Your task killer might be the problem. Also, make wallpaper black amd anything else you can as this is oled tech.
I invented cyberspace. You're trespassing.

Maybe you have wifi, bluetooth or your phone is doing lots of downloads. Try to put your phone into 2g + Data= off if you don't use the data, for me it helps a lot

Background data sync ate up a lot of my battery. Apps such as Facebook, twitter, weather apps, weather widgets all typically perform some sort of background sync. You have to go in and disable them.
Avoid task killers, android is usually good enough at managing mutitask.

1. turn dual mode GSM/WCDMA off
2. choose one mode only, preferable is GSM
3. uninstall task killer.

Matcarroll said:
Wow, this nexus is thirsty! Charged it twice today already and now charging again! I was expecting it to be bad but not this bad!
This I'm my first android phone so any tips to increase battery life will be greatly appreciated. I have turned off nfc and also all 3 location/GPS options but didn't change much. I also downloaded a application to kill running tasks etc.
Thanks in advance.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
There are so many things wrong with this post... dunno where to begin :/

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Pretty good if you ask me..
Root the device, download setCPU and create a profile to set the CPU as low as it can go when the screens off

andorreta said:
Maybe you have wifi, bluetooth or your phone is doing lots of downloads. Try to put your phone into 2g + Data= off if you don't use the data, for me it helps a lot
Click to expand...
Click to collapse
I hate when people say this kind of stuff. Having WiFi and Bluetooth on, but not utilizing them, does virtually nothing to your battery. Anytime I'm in my car (80 minutes a day, just for the drive to and from work) my phone is connected via bluetooth *AND* WiFi to my car. At work, I have it connected to WiFi at least 80% of the day (sometimes I use 3G for various reasons). It barely makes a dent in my battery.
If you have WiFi and Bluetooth on but you're not actively using it (and you have it set to not be scanning for new signals all the time), it won't do much to your battery life.

Lower screen brightness levels to a comfortable level.
Sent from my GT-I9000 using xda premium

hotleadsingerguy said:
If you have WiFi and Bluetooth on but you're not actively using it (and you have it set to not be scanning for new signals all the time), it won't do much to your battery life.
Click to expand...
Click to collapse
You're right with your points but probably the op doesn't know how to deactivate wifi scanning he already mentioned that it is his first Android phone.
@op could you probably use your phone like you did before and don't mess around to "improve" the battery life. After a couple of hours take some detailed screenshots of the battery settings menu. It's very important that we can see how long your phone was awake, how long the screen was on, wifi etc on or not. Give us as much information possible. Otherwise we're not able to help you. In addition keep in mind that your battery needs some time until it reaches it's full potential.
Sent from my HTC Desire using XDA App

Firstly - Ignore all the comments suggesting to switch something on or off and to use other Apps.
I got my GN 20 mins after the London Launch and im easily getting 27 hours on a full charge with lots of background data on.
Let your battery fully drain a couple of times then fully charge it.
Also be sure to check in your battery settings (Settings > Battery) to make sure there isnt a particular app thats killing your battery.
Also see if there are lots of open apps in the recent App button, close any that arnt needed.

the_didge said:
Firstly - Ignore all the comments suggesting to switch something on or off and to use other Apps.
I got my GN 20 mins after the London Launch and im easily getting 27 hours on a full charge with lots of background data on.
Let your battery fully drain a couple of times then fully charge it.
Also be sure to check in your battery settings (Settings > Battery) to make sure there isnt a particular app thats killing your battery.
Also see if there are lots of open apps in the recent App button, close any that arnt needed.
Click to expand...
Click to collapse
Only fully drain and charge your battery for calibration purposes. It is not a Nickel-cadmium battery and this is not good for it. I have found that charging it at a lower voltage through USB (my PC or Xbox, not USB connected to wall outlet) will give me more juice throughout the day. I haven't done any tests and cannot confirm these results, it is just a believe between my friends.
for more information on Lithium-ion battery's... Linky >
batteryuniversity.com

1) get rid of that damn task killer.
2) turn off wifi and bluetooth if you're not using them.
3) GPS isn't a big deal, but turn it off if you know never going to use it (you can leave on assisted cell tower GPS).
4) turn your brightness down or use auto-brightness.
Just use it for a few days. because its your first phone you're probably using it a TON. Life will get better once the "newness" wears off and you get into a normal usage pattern.
Do this, and if your battery is still crappy in a few days then look into other options. Don't go installing weird battery saving apps or anything right off the bat.

richmelchr said:
Only fully drain and charge your battery for calibration purposes. It is not a Nickel-cadmium battery and this is not good for it. I have found that charging it at a lower voltage through USB (my PC or Xbox, not USB connected to wall outlet) will give me more juice throughout the day. I haven't done any tests and cannot confirm these results, it is just a believe between my friends.
for more information on Lithium-ion battery's... Linky >
batteryuniversity.com
Click to expand...
Click to collapse
Well, sort of. The first few charges should be full charges (because the initial calibration of the battery sensor takes a few good full charges). Basically, all the way to dead and back up again.
Then do that once per month. Aside from that one time per month, just keep it charged any time you can. Plug it in at every opportunity. When I'm at work at least 80% of the time I have my phone in a dock on my desk. My battery life was 99% on my Atrix 4G when I gave it to my dad 3 weeks ago. My battery life on my iPhone 4 was 97% when I sold it after buying the Atrix.
Heck, my previous Macbook Pro was 2 years old and the battery life was listed as 94%. Lithium Ion batteries are fantastic, if you handle them correctly.

As others have said there's no need for the Task Killer. Just adjust settings to make sure certain apps aren't pulling data too frequently.
My battery stats show 19 hours use with 28% left, with wifi active but set to sleep never when plugged in', phone was used a fair bit during the day also. Its never going to be amazing but IMO its more than acceptable
Sent from my Galaxy Nexus using xda premium

just hope it lasts 24 hours with light use

My top two tips is, go into fb app and enter settings, set it to NEVER update automatically, any time you ooen the app it will still update and it takes a sec or two.
Nr2 is dont use task killers, it will only work your device harder, keep killing tasks that then has to restart from scratch over and over and over again.
Edit, also, if using like weatherbug widget, set that to only update every 4 hours or so, weather dont change thaat much in a day.
Sent from my X10i using xda premium

Exchanging mine tomorrow - battery plummeting randomly!

I've been troubleshooting this problem for weeks now - have never found a cause. I did a hard reset yesterday and have only installed the mainstream necessary apps - nothing sketchy or buggy at all.
My battery life is usually great and when unused drops less than 1% per hour...until suddenly it goes crazy and starts dropping ~10%/hour with NO USE.
I think perhaps something is wrong with my radio as the "mobile network signal" graph in the picture below is always spotty and shows the radio off for significant chunks of time when I know it's on. When these battery plunges start happening, it shows the radio as solid on, as you can see below...and reports the battery drain is from the radio.
A reboot fixes it but it comes back randomly within a day or two...the problem is that I can leave the phone unused for an hour to make dinner and when I pick it up next it has dropped a significant amount!
Hopefully AT&T will exchange it for me tomorrow and I will have better luck...I bought it on June 28th and tomorrow is July 28th...the 30th day, by my count.
Uploaded with ImageShack.us

16hrs on battery and still at 43% is pretty darn good if u ask me.

This has happened to me too on stock and AOKP. Just happened again a couple of hours ago.

So I did the exchange 4 days ago. Have not rebooted since then. Thought I was in the clear until this afternoon when the battery started to plummet again...I updated the screenshots in the first post with today's data. Very disappointed and not sure what to do now except to try and do a hardware reset and use the phone stock with no apps for a few days and see what happens...

You are most likely suffering from almost famous "Gsiff_daemon"
Use BetterBatteryStats to see what's draining your battery.

torred said:
You are most likely suffering from almost famous "Gsiff_daemon"
Use BetterBatteryStats to see what's draining your battery.
Click to expand...
Click to collapse
I have used it extensively. Posted numerous logs and screenshots in the developer's thread and had them examine it...no one could figure anything out.
Tonight I have watched it plummet again. I turned off wifi - it kept dropping. I turned off mobile data, it kept falling just as fast. Lastly I turned on airplane mode and it seems to have leveled off...seems to me the phone radio is the culprit but I have no clue what it could be doing!

(Forgive me if I'm hijacking)
I scooped up my SG3 on Sunday, and noticed almost immediately that my battery drops pretty quickly. I haven't rooted yet, and needless to say haven't flashed anything on it. I'm completely bone stock. I guess I'm wondering the same thing, in that I may need to return to AT&T. I lost as much as 70% in almost 8 hours with moderate to heavy use (Web browsing, textibg, a few calls, etc).
Something else: there is an orange sticker on the box it came un, much like a price tag at a retail store. On the sticker it reads: "REMATE 7.11.12" and has me wondering if this is a refurb they unloaded on me. Any ideas about the battery or this stupid aticker?
Sent from my SAMSUNG-SGH-I747 using xda premium

I notice that my battery life seems very unstable - one day it goes 10 plus hours no problem, the next day with the same usage its dying at 8 hours. The phone went bezerk this weekend, to the point of multiple reboots and just turning the thing off since it was unuseable. Factory reset over the weekend, wow ! Battery life is rocking 12 hours easy with heavy use.
The software on this phone is strange to say the least -

Apex_Strider said:
I lost as much as 70% in almost 8 hours with moderate to heavy use (Web browsing, textibg, a few calls, etc).
Click to expand...
Click to collapse
Yep, your battery dies after using your phone a lot. Hmmmm.

Igotsanevo4g said:
Yep, your battery dies after using your phone a lot. Hmmmm.
Click to expand...
Click to collapse
The reason I say this, is because of the fact I've heard of 12 to 14 hours or more of battery with the same (mostly) moderate to (occasional) heavy use. I understand that usage = battery discharge, I'm not a fool.
Sent from my SAMSUNG-SGH-I747 using xda premium

my battery usually only lasts 12 hours with minimal use, the only way i can go more than 8 hours is if i switch on airplane mode while i know im not going to need my phone.. while at work.

TRusselo said:
my battery usually only lasts 12 hours with minimal use, the only way i can go more than 8 hours is if i switch on airplane mode while i know im not going to need my phone.. while at work.
Click to expand...
Click to collapse
So perhaps I'm worrying over nothing (hopefully). I have been doing full charge to full discharge cycles and charging once it shuts down to "gel" or "season" the battery. But, there still remains the question of what the "REMATE" sticker is all about. It clearly has a date printed on it, which strikes me as odd...
Sent from my SAMSUNG-SGH-I747 using xda premium

So check out this graph...update of the earlier one.
-turned off wifi - plummet continued.
-turned off mobile data - plummet continued.
-turned on airplane mode to turn off the radio - battery stabilized. You can see the plateau towards the end.
-turned off airplane mode - plummet resumed as you can see.
Any conclusions I can take from this? It seems like it's the phone radio/standby and not apps...
http://img528.imageshack.us/img528/6889/20120802000137.png
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Apex_Strider said:
The reason I say this, is because of the fact I've heard of 12 to 14 hours or more of battery with the same (mostly) moderate to (occasional) heavy use. I understand that usage = battery discharge, I'm not a fool.
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
Of course but battery loss is a corollary response to usage. Who made the rules on what moderate or heavy usage is? Besides other factors like strength of signal, etc.
That said I personally average 10-12 hours with 4hrs of screen on time.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

jeffreii said:
So check out this graph...update of the earlier one.
-turned off wifi - plummet continued.
-turned off mobile data - plummet continued.
-turned on airplane mode to turn off the radio - battery stabilized. You can see the plateau towards the end.
-turned off airplane mode - plummet resumed as you can see.
Any conclusions I can take from this? It seems like it's the phone radio/standby and not apps...
http://img528.imageshack.us/img528/6889/20120802000137.png
Uploaded with ImageShack.us
Click to expand...
Click to collapse
Didn't see this mentioned, the stock rom had a cell standby bug where it drops by 32(whatever the measurement is) instead of what's supposed to be 3.2. This has effected me before and there are fixes.
Sent from my SGH-I747 using Tapatalk 2

TRusselo said:
my battery usually only lasts 12 hours with minimal use, the only way i can go more than 8 hours is if i switch on airplane mode while i know im not going to need my phone.. while at work.
Click to expand...
Click to collapse
Juice Defender Ultimate works great for me at work. Shuts off my data radio while screen is locked.
The location for wifi(allowing it to control wifi) is a little funky so I stopped using it(and suffered a little in the beginning because i kept forgetting to turn off wifi at night)
You can see how much my phone goes into deep sleep mode - This shows last night when I went to bed
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This is my battery graph - note that sharp drop was last night when I was installing the Google Wallet fix and the dev had an issue with the update. Took me a little while to figure it out as you can see.

corythug said:
Didn't see this mentioned, the stock rom had a cell standby bug where it drops by 32(whatever the measurement is) instead of what's supposed to be 3.2. This has effected me before and there are fixes.
Click to expand...
Click to collapse
That doesn't explain why the actual battery it dropping so fast. I suppose it could skew the "reason" the system gives for the battery drop...but it's further proven by the fact that the only way to stop the drop is to turn off the radio - even turning off mobile data alone does not stop it at all.
nest75068 said:
Juice Defender Ultimate works great for me at work. Shuts off my data radio while screen is locked.
The location for wifi(allowing it to control wifi) is a little funky so I stopped using it(and suffered a little in the beginning because i kept forgetting to turn off wifi at night)
You can see how much my phone goes into deep sleep mode - This shows last night when I went to bed
This is my battery graph - note that sharp drop was last night when I was installing the Google Wallet fix and the dev had an issue with the update. Took me a little while to figure it out as you can see.
Click to expand...
Click to collapse
Your sharp drop is correlated to heavy screen on time. Mine is correlated to nothing...just sitting there with the screen off and nothing happening that I can tell.

I reported this problem back in June. This same exact thing happens to mine. Normally the battery is awesome, but sometimes it starts discharging at a crazy rate at which point I restart thee phone to fix it.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

torred said:
You are most likely suffering from almost famous "Gsiff_daemon"
Use BetterBatteryStats to see what's draining your battery.
Click to expand...
Click to collapse
That's definitely my problem. When gsiff_daemon hasn't gone crazy the battery life is very good. I've only had the phone 3 days now and on the second found the battery discharging quickly when the phone was in standby (like the OP). I diagnosed this to be caused by gsiff_daemon. Seems to happen after the phone stops responding to input then does a warm restart. I only found one thread on this issue on one of the other S3 forums at XDA (TMo or global?)
Is there any sign of a fix for this? This is making an otherwise excellent phone horrible. I tried to relate this problem to Samsung through their support site, but just got a generic robot answer. Samsung's support site appears to be useless. Is there any indication Samsung is even aware of these problems?

I use System Tuner to check for gsiff_daemon going nuts. I normally notice it because my phone gets hot. If you use the Task Mgr from System Tuner and turn on display of kernel processes, it will pop right to the top if that's your problem.
The easiest way to deal with the problem when you notice it is to kill the process with System Tuner. It will start up again, but will not longer pin your CPU. A restart also works, but takes longer (and uses more battery).
You might also want to set up the Watchdog app to notify you when gsiff_daemon goes nuts.
I noticed you posted BBS logs, but gsiff_daemon will show up in Process, which doesn't appear to be logged (at least it isn't in the log in just dumped from my BBS).
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Idle battery drain

I've been noticing my battery drain about 3% on idle after taking it off charge. It's really annoying as 3% to me is too much. I've attached the battery screens to this post below.
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Device Idle is responsible for 1.32% drainage from your battery. No problem here. If I'm misunderstanding, please rephrase.

Aerowinder said:
Device Idle is responsible for 1.32% drainage from your battery. No problem here. If I'm misunderstanding, please rephrase.
Click to expand...
Click to collapse
Actually This is what I was referring to, when using the phone the battery drains nice and slow. better than I would expect to drain during screen on time. But when I take it off charger at 6 am and leave it in place and come back at 11 or 12 am I lose about 10% which shouldn't be normal imo. See below:

aamir123 said:
Actually This is what I was referring to, when using the phone the battery drains nice and slow. better than I would expect to drain during screen on time. But when I take it off charger at 6 am and leave it in place and come back at 11 or 12 am I lose about 10% which shouldn't be normal imo. See below:
View attachment 1608439
View attachment 1608440
Click to expand...
Click to collapse
I'm not sure if that's normal but I loose that amount in 2hours and 45 minutes idle
Sent from my Rooted Gameboy

aamir123 said:
Actually This is what I was referring to, when using the phone the battery drains nice and slow. better than I would expect to drain during screen on time. But when I take it off charger at 6 am and leave it in place and come back at 11 or 12 am I lose about 10% which shouldn't be normal imo. See below:
View attachment 1608439
View attachment 1608440
Click to expand...
Click to collapse
looks to me that ur messaging app is going crazy...everything else looks normal.

what can I do to fix this? Its annoying. And no this shouldn't be normal, I like everything about the stock rom and wouldn't like to root just for the hell of it. But this actually has me thinking, (still leaning towards no as I still get thru the day) but would like to get if fixed non the less.

I noticed the same thing. When i unplug it in the morning it drains faster. But when im waiting for the fully charged notification to pop up then unplug it lasts longer. Its strange, maybe has something to do with charger. Do they have "safe mode" after fully charged to prevent overcharging or something?
Sent from my Galaxy S3 using neighbors wifi

1slow4G said:
I noticed the same thing. When i unplug it in the morning it drains faster. But when im waiting for the fully charged notification to pop up then unplug it lasts longer. Its strange, maybe has something to do with charger. Do they have "safe mode" after fully charged to prevent overcharging or something?
Sent from my Galaxy S3 using neighbors wifi
Click to expand...
Click to collapse
I always wait for the battery fully charged unplug charger notification to pop up before unplugging. So that doesn't seem to be the problem.

Faster drain is normal from 100% to 90%. It was explained to me that when you leave the phone on the charger overnight it charges to 100% and then allows it to drain some, then starts recharging again. You may really be at 95% when you pull it off the charger despite what the phone is showing.

First, get Better Battery Stats. It can help you figure out whether something is eating your battery abnormally.
Play store link
Also, I highly recommend GSam Battery Monitor It might be a little easier to understand than BBS, but I like and use both.
Finally, read this: Your battery gauge is lying to you!

futuremonkey said:
First, get Better Battery Stats. It can help you figure out whether something is eating your battery abnormally.
Play store link
Also, I highly recommend GSam Battery Monitor It might be a little easier to understand than BBS, but I like and use both.
Finally, read this: Your battery gauge is lying to you!
Click to expand...
Click to collapse
Im not rooted so I'm guessing that BBS wont work for me too much. Neither is GSAM Battery Monitor.

aamir123 said:
I always wait for the battery fully charged unplug charger notification to pop up before unplugging. So that doesn't seem to be the problem.
Click to expand...
Click to collapse
Oh ok. Nevrrmind then
Sent from my Galaxy S3 using neighbors wifi

Go to settings/wifi press menu and select advanced
set NEVER keep wifi on during sleep.... it cut drain to much lower level for me.

ndkone said:
Go to settings/wifi press menu and select advanced
set NEVER keep wifi on during sleep.... it cut drain to much lower level for me.
Click to expand...
Click to collapse
already on that setting also today I left the phone in my car for a few hours (after sunset) and when I came back the phone drained from ~50% to 0% and was very hot.

aamir123 said:
Im not rooted so I'm guessing that BBS wont work for me too much. Neither is GSAM Battery Monitor.
Click to expand...
Click to collapse
both apps are working without rooting.
BBS should be the best app to find out which process is your problem.

This phone gets hot randomly, guess it was just humid in your car. I feel like all this battery talk is useless android has never been good with battery life. This phone is huge and powerful so battery drain is going to happen. Also depends how long you had battery, how much you over charge battery. I read in several places that after 3 to 5 months of use batteries tend to drain faster.
Your best bet if it's such a big issue is getting another battery with a separate charger. Honestly in this day and age these smartphones should come with an extra battery lol
Sent from my SGH-T999 using xda app-developers app

daxecutioner24 said:
This phone gets hot randomly, guess it was just humid in your car. I feel like all this battery talk is useless android has never been good with battery life. This phone is huge and powerful so battery drain is going to happen. Also depends how long you had battery, how much you over charge battery. I read in several places that after 3 to 5 months of use batteries tend to drain faster.
Your best bet if it's such a big issue is getting another battery with a separate charger. Honestly in this day and age these smartphones should come with an extra battery lol
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
My battery and phone are both less than a month old, as for humidity that doesn't drain a battery from 50-0% on idle in a few hours. Also I've posted new screenies, messaging used ~20% without being used and stats showing 0s awake. maps did something similar despite disabling all location services and unticking all boxes in the gps submenu. My issue isn't bad battery life, its idle battery life. I shouldn't lose 2% per hour or more when I unplug and go back to sleep.

Battery percentage setting issues

Hi again,
Just about to give up on this tablet when I noticed that it seems to be the battery percentage setting that is causing my charging and discharging issues.
With the setting turned on and the percentage visible, the battery seems to discharge and charge oddly, and also the percentage shown does not reflect the amount shown on the battery icon, or at least it rarely does, but it varies.
With the percentage setting off, the discharge seems much slower and predictable.
If you have a p600, could you possibly try this for me with and without and see if it matches with my findings?
Thanks.

I'm having very odd battery issues myself. I'll give this a try and see if it improves for me.

ChrisNee1988 said:
I'm having very odd battery issues myself. I'll give this a try and see if it improves for me.
Click to expand...
Click to collapse
There's a good guide on here for optimising, it has helped a lot, definitely worth a look :good:

Monkey Chops said:
With the percentage setting off, the discharge seems much slower and predictable.
If you have a p600, could you possibly try this for me with and without and see if it matches with my findings?
Thanks.
Click to expand...
Click to collapse
With it on I have noticed............ If I remove charger at 96% next thing I notice battery is at 100% and my battery app charts that jump.
I'm using Battery HD, are you using a battery app also?
.

kkretch said:
With it on I have noticed............ If I remove charger at 96% next thing I notice battery is at 100% and my battery app charts that jump.
I'm using Battery HD, are you using a battery app also?
.
Click to expand...
Click to collapse
Thanks for the reply. I'm not using any battery app, just the one that comes with the stock tablet.
I think I did encounter the same thing as you, and also unplugging at 100%, then taking it upstairs and looking and it was 96% or so, and then after a restart, it was 100% again. Very odd, but it doesn't do it for me unless the percentage setting is enabled.

Monkey Chops said:
There's a good guide on here for optimising, it has helped a lot, definitely worth a look :good:
Click to expand...
Click to collapse
No i suspect my device might have some deeper issue. I can drain the battery from 100% to 0 in an hour of playing games but if i turn off the note and turn it back on, it'll be back at 60% or whatever it's actual battery level is. I can rinse and repeat and slowly get it down to 0. Either way the battery drains much quicker than it should. It could probably only last 6 hours of screen on time with very light usage. I might need to get motherboard or battery replaced.
I am still hoping that its a software glitch and something like this could fix it.

ChrisNee1988 said:
No i suspect my device might have some deeper issue. I can drain the battery from 100% to 0 in an hour of playing games but if i turn off the note and turn it back on, it'll be back at 60% or whatever it's actual battery level is. I can rinse and repeat and slowly get it down to 0. Either way the battery drains much quicker than it should. It could probably only last 6 hours of screen on time with very light usage. I might need to get motherboard or battery replaced.
I am still hoping that its a software glitch and something like this could fix it.
Click to expand...
Click to collapse
Yeah, mine wasn't that bad, although bad enough. Hopefully you can find a fix without having to send it back.

ChrisNee1988 said:
No i suspect my device might have some deeper issue. I can drain the battery from 100% to 0 in an hour of playing games but if i turn off the note and turn it back on, it'll be back at 60% or whatever it's actual battery level is. I can rinse and repeat and slowly get it down to 0. Either way the battery drains much quicker than it should. It could probably only last 6 hours of screen on time with very light usage. I might need to get motherboard or battery replaced.
I am still hoping that its a software glitch and something like this could fix it.
Click to expand...
Click to collapse
I wonder if the tablet needs a little time to calibrate the battery usage, maybe there is an internal process that has to happen over time?
.

kkretch said:
I wonder if the tablet needs a little time to calibrate the battery usage, maybe there is an internal process that has to happen over time?
.
Click to expand...
Click to collapse
I've had it since it was released in october or november and the battery life used to be good and last 10+ hours and probably 5-6 hours while playing games. Not sure what happened in between. It has taken a few very light drops with no visible damage and i did break (bend) a charge with it in the tablet but the charging port seems normal and still works fine.

Just checked with battery % off for 30 mins and battery dropped 4% which is normal.
Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.

I still had crazy battery drops with the percentage turned off. so didn't seem to make any difference for me.

ChrisNee1988 said:
I've had it since it was released in october or november and the battery life used to be good and last 10+ hours and probably 5-6 hours while playing games. Not sure what happened in between. It has taken a few very light drops with no visible damage and i did break (bend) a charge with it in the tablet but the charging port seems normal and still works fine.
Click to expand...
Click to collapse
Is your unit still rooted????? If so have you tried removing root and installing the most current factory rom.
Have you seen this post "Longer Battery Life (or How You're Being Robbed!)"
It may help some that are having issue with battery drainage but after seeing your post #36 in the BATTERY posting .... I'm leaning towards a cracked or damaged board from the few drops you talked about.
.

kkretch said:
Is your unit still rooted????? If so have you tried removing root and installing the most current factory rom.
Have you seen this post "Longer Battery Life (or How You're Being Robbed!)"
It may help some that are having issue with battery drainage but after seeing your post #36 in the BATTERY posting .... I'm leaning towards a cracked or damaged board from the few drops you talked about.
.
Click to expand...
Click to collapse
I've tried unrooting and odined back to a factory rom, also cleared my SD cards, nothing helped so i'm back to being rooted for now. I've done a lot of the tweaks to improve battery life but whenever I play games, it just drains like crazy even with minimum brightness. The drops were very very minor, like from 1 foot onto carpet and with a case so I doubt that it was the cause but I guess theres always a chance.
I'm still wondering if I should just live with terrible battery life and stay tethered to a charger or risk sending it back to samsung and having them find out it was rooted and overcharging me for repair. And I love the device so much, I don't know if I'd want to give it up for a week or two.

ChrisNee1988 said:
I've tried unrooting and odined back to a factory rom, also cleared my SD cards, nothing helped so i'm back to being rooted for now. I've done a lot of the tweaks to improve battery life but whenever I play games, it just drains like crazy even with minimum brightness. The drops were very very minor, like from 1 foot onto carpet and with a case so I doubt that it was the cause but I guess theres always a chance.
I'm still wondering if I should just live with terrible battery life and stay tethered to a charger or risk sending it back to samsung and having them find out it was rooted and overcharging me for repair. And I love the device so much, I don't know if I'd want to give it up for a week or two.
Click to expand...
Click to collapse
What games do you play that drain the battery the fastest, maybe I have one and can see how it acts on my SM-P600 32gb.

kkretch said:
What games do you play that drain the battery the fastest, maybe I have one and can see how it acts on my SM-P600 32gb.
Click to expand...
Click to collapse
Mostly hay day and clash of clans
Sent from my SCH-I545 using Tapatalk

Tested again last night and this does seem to be the problem on my unit. Just over 2 hours and the battery icon had barely moved, and looking in the settings, it showed that I had 84% left. Hopefully it wasn't a one off.

Monkey Chops said:
Tested again last night and this does seem to be the problem on my unit. Just over 2 hours and the battery icon had barely moved, and looking in the settings, it showed that I had 84% left. Hopefully it wasn't a one off.
Click to expand...
Click to collapse
Knaa mate, the battery icon is bad on mine aswell, I think its just bad design by samsung. Have a look at the pic...
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Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.

Geordie Affy said:
Knaa mate, the battery icon is bad on mine aswell, I think its just bad design by samsung. Have a look at the pic...
Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.
Click to expand...
Click to collapse
Thanks :good:
So, I wonder which is correct, the icon or the percentage? If the percentage is right, my tablet is faulty. If the icon is right, it would seem to be ok.
And all these reviews and people that get 10-12 hours, I guess they went by the icon?

Monkey Chops said:
Thanks :good:
So, I wonder which is correct, the icon or the percentage? If the percentage is right, my tablet is faulty. If the icon is right, it would seem to be ok.
And all these reviews and people that get 10-12 hours, I guess they went by the icon?
Click to expand...
Click to collapse
The percentage gives a more accurate time I guess.
But people and myself use the "Screen on time" as the usage data.
Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.

Was doing ok last night and then came here and the battery took a dive. Went and grabbed adblock for firefox and ghostery and ghostery was reporting 65 trackers on this site. Also the malware popups were becoming ridiculous and they only happened here. Going to do a factory reset and not come come here tonight, see if that helps anything.
I did do a bit of a search regarding the malware here, and it was being reported as early as last june it seems.