Help understanding battery drain - G3 Q&A, Help & Troubleshooting

Hi guys!
I desperately need some help from you experts. I have recently noticed my LG G3 has been draining more battery than it should, especially when idle (or at least, theoretically when idle).
Please take a look at the sequence of screenshots (have in mind the analysis was made overnight, when the phone was sitting idle on my bedside):
Screenshot 1: You can see app usage has been the biggest juice thief, and an abnormal drain (24%) for a (supposedly) idle period of 6 hours.
Screenshot 2: Kernel & Android system are the biggest villains, but only sums up to 45%.
Screenshot 3: Taking a deeper look at Kernel, it shows only 7 minutes of CPU usage.
Screenshot 4: A deeper look at Android system also shows a small usage, only a few seconds shy of 6 minutes.
Screenshot 5: On the chart, we can see there was an absurd drain (around 20%) from 1:30 am to 5 am, and then it got stabilized. Wifi was on the whole time, and you can see it shows the phone was (theoretically) dozed 95% of the time.
Sctreenshot 6: Even though the phone was dozed, we can clearly see it has severe CPU usage throughout the whole night, and no pattern could be distinguished between the hours were the battery got the severe drain and the hours after. Even though the CPU frequency was low between 1:30 and 5 (except for a couple of peaks), the utilization averaged 45%.
This is why I need some expert's help. I cannot understand what is draining my battery, what is keeping my phone's CPU util so high... can someone please shed a light on this for me?
Thanks in advance!!! :fingers-crossed: :good:

Hello there guys. Anyone could please take a look at this and try and help me out?
Thanks!!!

Well, it's hard to answer simply such a complicated problem. There are so many variables to consider, but I would say rule out a few things first.
First, if you have TWRP installed, backup your current ROM and do a complete factory reset. If the problem persists, then you know it's something built into your ROM causing it and I would suggest swapping out that ROM for another. If the problem is gone, you know it's something you installed or modified in the ROM and you can start to narrow that down.
Second, I would try out the app WakeBlock. It's still in development, but it allows you to see active wakelocks (Android programming object used to keep the CPU running even if dozed) and block them if you want to. But the app may be useful for just tracking down battery hogs that are activated at 2am in the morning
Hope that helps! Good luck! :fingers-crossed:

AlwaysLucky said:
Well, it's hard to answer simply such a complicated problem. There are so many variables to consider, but I would say rule out a few things first.
First, if you have TWRP installed, backup your current ROM and do a complete factory reset. If the problem persists, then you know it's something built into your ROM causing it and I would suggest swapping out that ROM for another. If the problem is gone, you know it's something you installed or modified in the ROM and you can start to narrow that down.
Second, I would try out the app WakeBlock. It's still in development, but it allows you to see active wakelocks (Android programming object used to keep the CPU running even if dozed) and block them if you want to. But the app may be useful for just tracking down battery hogs that are activated at 2am in the morning
Hope that helps! Good luck! :fingers-crossed:
Click to expand...
Click to collapse
Hi there. Thanks for trying to help!
I don't have TWRP, as I use stock ROM (phone has MobileIron installed for work use, so I can't have it rooted).
I already have wakelock detector installed on the phone, but I don't how many wakelocks during a night should be considered as OK or not...

ghnogueira said:
I don't have TWRP, as I use stock ROM (phone has MobileIron installed for work use, so I can't have it rooted).
Click to expand...
Click to collapse
True, you would need root to flash TWRP to allow backups/restores. However once TWRP is flashed, you could just install a ROM that does not have root and do not root it. That should pass all of MobileIrons checks which are mostly package name-based. In short, root is not required to keep TWRP installed. Something to consider.
ghnogueira said:
I already have wakelock detector installed on the phone, but I don't how many wakelocks during a night should be considered as OK or not...
Click to expand...
Click to collapse
Well, in reality you don't need any wakelocks active. Especially if you are asleep or not going to use the device for a while. Wakelocks can be doing anything from downloading advertisements for apps, to syncing emails with servers. You could block them all in a certain time frame, but that may be overkill. I suggest just going through the list of wakelock package names before you goto bed or when you know drain is at it's heaviest. The package name may be different from the name of the app, but it should give you something to go on. Just uninstall the heavy drainers or disable them enough so they can not drain you so much.

ghnogueira said:
Hi guys!
I desperately need some help from you experts. I have recently noticed my LG G3 has been draining more battery than it should, especially when idle (or at least, theoretically when idle).
Please take a look at the sequence of screenshots (have in mind the analysis was made overnight, when the phone was sitting idle on my bedside):
Screenshot 1: You can see app usage has been the biggest juice thief, and an abnormal drain (24%) for a (supposedly) idle period of 6 hours.
Screenshot 2: Kernel & Android system are the biggest villains, but only sums up to 45%.
Screenshot 3: Taking a deeper look at Kernel, it shows only 7 minutes of CPU usage.
Screenshot 4: A deeper look at Android system also shows a small usage, only a few seconds shy of 6 minutes.
Screenshot 5: On the chart, we can see there was an absurd drain (around 20%) from 1:30 am to 5 am, and then it got stabilized. Wifi was on the whole time, and you can see it shows the phone was (theoretically) dozed 95% of the time.
Sctreenshot 6: Even though the phone was dozed, we can clearly see it has severe CPU usage throughout the whole night, and no pattern could be distinguished between the hours were the battery got the severe drain and the hours after. Even though the CPU frequency was low between 1:30 and 5 (except for a couple of peaks), the utilization averaged 45%.
This is why I need some expert's help. I cannot understand what is draining my battery, what is keeping my phone's CPU util so high... can someone please shed a light on this for me?
Thanks in advance!!! :fingers-crossed: :good:
Click to expand...
Click to collapse
I'm in pretty much the same boat. I lose like 14-20% overnight and I have no clue why. Factory reset and it still seems to be that bad. I also use GSam and have almost exactly the same stats in terms of Android System and Kernel usage, so that means it shouldn't be an app thing (unless you and I have the same apps installed lol). I'm really at a loss as to why there is so much crazy drain.

AlwaysLucky said:
Well, in reality you don't need any wakelocks active. Especially if you are asleep or not going to use the device for a while. Wakelocks can be doing anything from downloading advertisements for apps, to syncing emails with servers. You could block them all in a certain time frame, but that may be overkill. I suggest just going through the list of wakelock package names before you goto bed or when you know drain is at it's heaviest. The package name may be different from the name of the app, but it should give you something to go on. Just uninstall the heavy drainers or disable them enough so they can not drain you so much.
Click to expand...
Click to collapse
I understand I do not need, but I meant how many wouldn't be "harmful". But I'll keep an eye in a night where this thing happens and get back to you.
Thanks for trying to help!

The same problem here. I lose 20% battery per night. Problem is only appearing on stock rom with stock recovery, I have installed Flumics and stock rom zip from TWRP - problem gone, but I need stock rom with stock recovery.

Related

[Q] something is draining my battery - how can i tell what it is?

So i rooted my evo and installed a custom rom pretty much as soon as I had it out of the box. And then started installing apps. And i've pretty much NEVER had a fully charged battery last for a whole day even with very little to no usage of the phone.
A few days ago my friend also got an evo but hasn't rooted it or installed any apps yet. And he is easily getting TWO days or more out of a charge.
so i decided to do a full wipe of my phone, and what do you know, I'm suddenly getting 2 days out of the battery, maybe even a little more then 2 days.
Previously, i had setcpu installed as well as system panel. And i was never able to figure out what was draining the battery. When i looked in system panel the only thing that was using the cpu a little bit was system. Pretty much every other app listed was showing 0.1% of cpu usage.
So i'd like to know if there's a better method to figure out what's draining the battery. Do I have to install apps one at a time and wait a few hours/a day to see if the battery starts going down? or is there a better method?
thanks
I always check the awake time versus the time on. If the wake time is very high that means there is an app acting up.
What I'll do to investigate which app is I'll just go to the little stock battery report thing and look at what is using my battery.
Also, it should be noted that be wary of the facebook app. That thing is a complete and total battery hog. It was draining my battery from 20% over the course of an hour.
I was checking the stock battery report - it wasn't showing me anything useful when the battery was going dead.
right now i'm getting amazing battery life compared to before.
90 minutes since the phone was unplugged and it's only down to 96% and that's with me using it a bit. Previously, it would have been down to 85-80% by now.
I just have no clue at all what was causing the drain. I was hoping there was a better method other then installing apps one at a time until the battery starts draining to figure out the culprit.
There's an app called Watchdog and it monitors the background activity happening on your phone. If some seems to be getting out of hand it will notify you.
I had the same problem I installed Smobile security and it was KILLING my battery. Watchdog was able to tell what it was.
Hope this helps.
It looks like watchdog does basically the same thing that system panel does. and system panel wasn't showing me anything unusual. System panel shows the cpu usage of apps - and none of my apps were showing high cpu usage.
I guess there's really no app that can actually show you the battery usage per app - it can only show you the cpu usage.
You can try SpareParts from the Market,it may help you see if you have a wakelock issue of some kind and its free so no harm if it doesn't help.
BrianBusby2038 said:
You can try SpareParts from the Market,it may help you see if you have a wakelock issue of some kind and its free so no harm if it doesn't help.
Click to expand...
Click to collapse
actually, the rom i am using already has spareparts in it. I'm not sure what you mean by wakelock though. How do i determine that? What is it?

Android System High Usage

Hi guys,
Anyone have an idea what would cause my battery stats to have very high "Android System" usage all of a sudden. No new apps installed.
Thanks
I'm seeing this get pretty high as well. Starting to wonder... TW really limits the information in the Battery Status dialog. Hopefully we'll get ROMs soon that have more detailed information like I had in MikG.
Splaktar said:
I'm seeing this get pretty high as well. Starting to wonder... TW really limits the information in the Battery Status dialog. Hopefully we'll get ROMs soon that have more detailed information like I had in MikG.
Click to expand...
Click to collapse
Did you recently start seeing this? Or has it been from the beginning?
mikea3000 said:
Did you recently start seeing this? Or has it been from the beginning?
Click to expand...
Click to collapse
It has always been a bit higher than I am used to. I just grabbed the new version of betterbatterystats from here: http://forum.xda-developers.com/showthread.php?t=1179809
Hopefully I can use this to figure it out.
Sent from my SGH-T989 using Tapatalk
Splaktar said:
It has always been a bit higher than I am used to. I just grabbed the new version of betterbatterystats from here: http://forum.xda-developers.com/showthread.php?t=1179809
Hopefully I can use this to figure it out.
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
Please keep me posted if you find anything
System Panel works really well for me I found. Paid version is totally worth it, too.
Just another thought/question...
I am assuming since it is "Android System" causing such high usage ( I have 5% battery left and android system is 30%), that it cant be an app I installed causing the issue.
It has to be something that is either part of the stock ROM (I am stock, not rooted) or something core to the android operating system. PLease let me know if you agree with my logic that it cant be an installed app.
Just trying to find the root cause at this point or determine if I have to hard reset which I dont feel like doing.
Thanks again
The original SGS2 has an issue similar to this.
http://forum.xda-developers.com/showthread.php?t=1290020
They discovered with it that the processor has to ramp back up to 800MHz to do its pre-deep sleep tasks, in addition to taking longer than normal to do those tasks. So with a phone that woke up often to sync, even limiting the processor to 200 MHz with the screen off, it still spends a considerable amount of time at 800 MHz. I don't think they have a fix, but you can work around by limiting the amount of syncing the phone does while sleeping.
Don't know if this is related, since TMO SGS2 doesn't use the Exynos.
Thanks for the reply. My problem is that the battery usage for android system used to be 5% or less and now out of the blue is 25-30%.
Did you change any sync settings? Setting up an email account or maybe a widget to sync could do it. The phone has to do a bunch of system related tasks when it wakes up and goes to sleep, and those fall under "Android OS", so even if it is waking up to sync for an app, the system still has to do stuff, and more than usual when coming out of sleep. Like the other thread said, the original SGSII does all these things at a far higher clock speed than it needs to, and takes longer than most phones do.
I myself don't have the phone yet, nor do I have an original SGS2, but you could look up much of the same information the gentleman who wrote up the OP in that thread I linked to see if the issue is related.
I was so annoyed with this issue that I decided to do a factory reset. I dont think it helped.
So far after being off the charger for 2 hours....I sent 5 texts, browsed web for about 5 minutes. I am down to 87%. Display time is 46%, used for 18 min and android system is 17% with stay awake time at 3 minutes, and there are other items taking up battery at 5% or less like cell standby, android os, market
Does this seem normal, I never rememver android system taking up over 5% even with little usage. I am actually pissed because I would have thought that a factory reset would have helped for sure.
BTW, I am only syncing one acct, Google
I've been watching with betterbatterystats for a couple days now. I've got Skype running in the background so I expect that to use some battery and cause some wake ups.
But it has turned out that location services and updates have been doing a lot more, as much as 7000 in one day. They show up as something related to Maps, but I think that it might be Latitude. So I have disabled that location tracking. We'll see if it helps, there isn't much more using my battery. It is just something keeping it from deep sleeping.
If this doesn't work I'll look at other location apps like weather and such. I already uninstalled Accuweather after reading about how they transfer your location tracking information over the Internet unencrypted!
Sent from my SGH-T989 using Tapatalk

[Q] Sleep Battery Life

Hey everybody,
Just made the jump from the iPhone 4S and have done the custom ROM/kernel thing the past week. Things were good at the start but I feel them slowly deteriorating.
I find my battery life during sleep has become much worse than before. I mean, it still kills the 4S which would see ~25% overnight. But I'm seeing 10% overnight right now, and was ~2% earlier in the week. I normally have my phone on the charger at night, but didn't last night and I'm kinda glad I got to see this. Makes me realize why I was likely chewing through more in the day too.
You can see what I'm running below in my signature. Last night I had 5 instances where the phone woke on its own. Likely due to emails coming in.
Am I expecting too much from my modifications? Am I doing something wrong? I'm ready to toss AOKP aside because of other issues anyway, but yesterday I also read it was known to have some excessive battery drain as well. Without turning this into a battle to defend the ROM you use (like half the threads in here), if you have other suggestions, feel free to throw in a ROM suggestion. I'll attach some pictures of my battery screen so anyone willing to give me a hand can help.
Thanks in advance.
I had this problem when I was running franco too. Switched to leankernel and never looked back. I get about 4-6% drain overnight as long as I dont do something stupid like leave something running by exiting with home instead of the back button. I also have wifi on 24/7 and gps off unless im nav'in. No BT
Screwedupsmitty said:
I had this problem when I was running franco too. Switched to leankernel and never looked back. I get about 4-6% drain overnight as long as I dont do something stupid like leave something running by exiting with home instead of the back button. I also have wifi on 24/7 and gps off unless im nav'in. No BT
Click to expand...
Click to collapse
I'm hesistant to blame the kernel. I was using franco prior to AOKP without issue. I didn't make that clear in the OP. I went 4.0.4 Stock -> Stock + franco -> AOKP b31 + franco. Things were good the first two steps and I'd like to think the first few days on AOKP.
Perhaps I have some background processes chewing battery - but there's nothing with a higher battery drain than Chrome beta with 2%. My phone idle and Cell standby had huge drain though. Could a weaker than normal signal cause this? Could my radio be the culprit?
Steps to best diagnose idle battery drain.
-Install CPU Spy and Better Battery Stats.
-Charge phone to full and let it run for several hours undisturbed (easiest to charge before bed, then unplug it when you know it won't be used till morning).
-Take quick note of your % loss per hour. Around 1%, you're golden. 1-2 is pretty normal. >3 and you've got issues.
-Launch CPU Spy. Most of the time should be deep sleep (we're talking about 95%). If your phone has been awake a lot, there's either an app that refuses to let your phone rest, or an OS/Kernel issue. If it's not extreme but noticeable, you likely just need to reign in settings on some apps to keep them from syncing so often or working in the background.
-Launch Better Battery Stats. Select Partial Wakelocks from the menu. These are all cases of apps waking the phone up, sorted by length. Go look at problem apps' settings/consider uninstalling if you don't need them. Kernel wakelocks should be low too.
Keep in mind that the goal here isn't really to get all these things to zero so do not obsess over small showings. Facebook with push notifications but updates set to never keeps my phone awake for about a minute or two every night, for instance. So does Handcent SMS. If you flash a rom and your phone needs to do a lot of syncing it's likely to show up in this kind of test as well. But for a night with nothing going on, nothing should be keeping your phone up for more than a few minutes total.
myrdog said:
I'm hesistant to blame the kernel. I was using franco prior to AOKP without issue. I didn't make that clear in the OP. I went 4.0.4 Stock -> Stock + franco -> AOKP b31 + franco. Things were good the first two steps and I'd like to think the first few days on AOKP.
Perhaps I have some background processes chewing battery - but there's nothing with a higher battery drain than Chrome beta with 2%. My phone idle and Cell standby had huge drain though. Could a weaker than normal signal cause this? Could my radio be the culprit?
Click to expand...
Click to collapse
Weaker than normal signal can kill a phone battery, when I'm in lecture out in the bumfuck nowhere school I go to, I get -100 to -120dbm, which kills my battery while i'm at school. If thats your situation not much to do besides hope radios may increase your signal, but if not then your basicly as SOL as i am and may have to just charge it
JoeSyr said:
Steps to best diagnose idle battery drain.
-Install CPU Spy and Better Battery Stats.
-Charge phone to full and let it run for several hours undisturbed (easiest to charge before bed, then unplug it when you know it won't be used till morning).
-Take quick note of your % loss per hour. Around 1%, you're golden. 1-2 is pretty normal. >3 and you've got issues.
-Launch CPU Spy. Most of the time should be deep sleep (we're talking about 95%). If your phone has been awake a lot, there's either an app that refuses to let your phone rest, or an OS/Kernel issue. If it's not extreme but noticeable, you likely just need to reign in settings on some apps to keep them from syncing so often or working in the background.
-Launch Better Battery Stats. Select Partial Wakelocks from the menu. These are all cases of apps waking the phone up, sorted by length. Go look at problem apps' settings/consider uninstalling if you don't need them. Kernel wakelocks should be low too.
Keep in mind that the goal here isn't really to get all these things to zero so do not obsess over small showings. Facebook with push notifications but updates set to never keeps my phone awake for about a minute or two every night, for instance. So does Handcent SMS. If you flash a rom and your phone needs to do a lot of syncing it's likely to show up in this kind of test as well. But for a night with nothing going on, nothing should be keeping your phone up for more than a few minutes total.
Click to expand...
Click to collapse
This is what every user should use to diagnose battery problems at first.

How can I track down my battery drain?

Leaving my OP in place, but I have rewritten the description with much more detail and pics here
http://forum.xda-developers.com/showthread.php?p=25401417#post25401417
I suggest skipping to there.
I am looking for general tips here. E.g., not asking you to diagnose my specific problem so much as give me ideas of what else to check or try.
Lately I have had unexplained (to me) battery drain. Yesterday I lost about 25 percent in an hour while the phone idled. It is not a constant thing, though. I can go an hour and loose 1 percent then loose massive amounts in the next hour.
Now, i have searched, but I have not found anything that applies to me.
I have:
Tried a different radio
Tried a different kernel
Reflashed my rom
Phone is entering deep sleep according to cpu spy
There are no unusual or excessive wake locks according to better battery stats
No apps are using a lot of battery.
I am in a low signal area at work, but putting the phone in airplane mode and dissabling background syn does not stop the drain.
Ideas?
might be your phone is loosing signal? i would check the battery stats in the settings menu to see if you have a poor mobile signal.
Zepius said:
might be your phone is loosing signal? i would check the battery stats in the settings menu to see if you have a poor mobile signal.
Click to expand...
Click to collapse
beren28 said:
I am in a low signal area at work, but putting the phone in airplane mode and dissabling background syn does not stop the drain.
Click to expand...
Click to collapse
So I don't think I can blame it on that.
Do you have any exchange sync on your phone?
Sent from my Galaxy Nexus using Tapatalk 2
can you give us screen shots of battery stats?
Herman76 said:
Do you have any exchange sync on your phone?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
I do, and on reflection it is a possible culprit since I added it recently.
Didn't occur to me since it was producing no wakelocks and the battery stats did not showing as using much battery.
I shall turn it off for a bit and see if that helps. (unless there is some other way to test if it is the problem first.) I am off to the search button!
Zepius said:
can you give us screen shots of battery stats?
Click to expand...
Click to collapse
This is from yesterday when i set it down unused for about 90 minutes. The amount of wakes seems liek a lot, but it is similar to what i see when i have far far less drain, so I don't think that is the problem. I didn't get the app list screen, but out should screen as the only major drain with about 2 minutes.
I know it is shows poor signal strength, so immediately after that shot I put it in airplane mode, turned of sync, and rebooted. The battery continued to drain and graph had the exact same slope under those conditions. (Forget to get a pic though.)
Sent from my jitterbug using tapatalk.
System panel paid version with monitoring enabled is the best for tracking apps using CPU.
OK, still working on this.
To recap:
When the screen is off, and no apps are running I sometimes get inexplicable battery drain. This is occurring under conditions when I should be experiencing little or no drain at all. I say this becuase:
The screen is of and no bakground apps are running
the phone is NOT awake and IS entering deep sleep (as confirmed by cpuspy)
there are no unusual kernel or partial wake locks
there are no apps listed as using unexpected ammounts of battery
This is not a universal problem. The phone *often* behaves as expected. I can leave the phone off for an hour and see a 1% or 2% drain, and I am happy with that. However, sometimes, randomly, it goes nuts on my.
This graph from a few weeks ago shows what I mean. Look in the green box. The phone is sleeping, and the screen is off. The graph starts as a flatline, then, all of a sudden, it begins to drop precipitously.
Here is a graph that shows the battery dropping at the same rate whether the phone is awake or sleeping:
I have gone the following to try and narrow the problem down:
Done a completely fresh install of my Rom including a system wipe.
Tried two kernels (the aokp default and several relases of Franco's
Tried a different radio
Activated and installed a new sim card
I have come to suspect that the problem is network related. When the problem starts, sometimes going into airplane mode and back and/or toggling 2g only temporarily fixes the problem.
I suspect that something is happening with my connection to T-Mobile that keeps the network running and draining power. This is pure speculation, but it is all I can think of.
I installed juice defender (which I had not been previously running) and noticed the that, sometimes, it didn't turn of data when it should have. I also noticed the following two things happen:
I do not believe it is a rom problem, since if so, someone else would be reporting this. It might be an app problem, but if so the app is draining battery without a wake lock and while the phone is in deep sleep.
It is not exchange (as was suggested in this thread) since it continues when I ev my exchange account.
I have no idea what else to do or try.
Since it happens at random and takes a while to identify, uninstalling one app at a time to test for that could easily take months to narrow down a misbehaving app.
I know it is not a hardware issue since last month I got this:
That was with AOKP and Franco (earlier versions obviously)
I have google searched till my fingers bleed.
I am a long way form being an expert, and I suspect I may have overlooked something obvious.
Please, any thoughts??
Damn you definitely have a major issue and I don't know what it could be. But when my phone sleeps itstays dead flat with no awake bars, and drops 1% every 3 hours.
1. Calibrate battery
2. If you really wanna find the problem, install the rom with no mods or apps and run it and see if it still happens. Then add back each mod/app one at a time
derekwilkinson said:
1. Calibrate battery
2. If you really wanna find the problem, install the rom with no mods or apps and run it and see if it still happens. Then add back each mod/app one at a time
Click to expand...
Click to collapse
While I appreciate your effort, this is remarkable unhelpful for the following reasons:
1. "calibrating" the battery is a myth and doesn't actually do something. Even if it did, it would not explain the symptoms I have described. I have been around xda long enough to know it is the knee-jerk reaction to any battery question, but it is not relevant here.
2. Since the problem occurs at random, and sometimes takes hours to show up, (For instance, last night I charged to full and tried to catch it happening. For 4 hours nothing happened, it behaved perfectly. Then I went to bed and it immediately started to fall and was dead by morning) and since I have over 100 apps, your suggestion could easily take *over a year* to follow. Believe me, I have thought about it, but I started this thread hoping for ideas that would allow me to avoid it.
Here is that chart for last night.
I had about 1 hour and 30 minutes screen on time with 65% left when I went to bed. When I woke up, phone was dead.
RogerPodacter said:
Damn you definitely have a major issue and I don't know what it could be. But when my phone sleeps itstays dead flat with no awake bars, and drops 1% every 3 hours.
Click to expand...
Click to collapse
Mine often does that. But sometimes it doesn't. It is the fact that it happens seemingly at random that makes it so annoying and hard to track down.
I would replace the battery
One thing you haven't rulled out is that the battery itself is bad.
Have a friend you could swap with for a day, or at least long enough to see if the problem follows? If your battery drops on their phone that is also a good indication.
arw01 said:
One thing you haven't rulled out is that the battery itself is bad.
Have a friend you could swap with for a day, or at least long enough to see if the problem follows? If your battery drops on their phone that is also a good indication.
Click to expand...
Click to collapse
The thought has occurred to me, but unfortunately, no, I don't have a friend I can swap with. And really, since I have had the phone less than 3 months, the battery *shouldn't* be bad, but yeah, defective products happen.
If I cannot find any other cause I will likely order a new battery and see if that fixes it.
beren28 said:
While I appreciate your effort, this is remarkable unhelpful for the following reasons:
1. "calibrating" the battery is a myth and doesn't actually do something. Even if it did, it would not explain the symptoms I have described. I have been around xda long enough to know it is the knee-jerk reaction to any battery question, but it is not relevant here.
2. Since the problem occurs at random, and sometimes takes hours to show up, (For instance, last night I charged to full and tried to catch it happening. For 4 hours nothing happened, it behaved perfectly. Then I went to bed and it immediately started to fall and was dead by morning) and since I have over 100 apps, your suggestion could easily take *over a year* to follow. Believe me, I have thought about it, but I started this thread hoping for ideas that would allow me to avoid it.
Click to expand...
Click to collapse
1. yes battery calibration does make a difference.
2. ok, so an app can't run a process at random? especially when you have "over 100 apps"? Run the rom stock and see if it still happens, or even run the stock rom/kernel. if you don't want to try this then why are you asking for suggestions? christ
derekwilkinson said:
1. yes battery calibration does make a difference.
Click to expand...
Click to collapse
You are incorrect. But, in any case, I DID calibrate the battery just to cover bases in the case that I was wrong.
2. ok, so an app can't run a process at random? especially when you have "over 100 apps"?
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We'll of course it can. That is kinda my point. If I go one app at a time waiting for it to "run a process at random" I am talking literally MONTHS of testing. I would have to wait many hours, if not days after installing or uninstalling an app to be sure whether or not it made a difference, then move on the the next. This is simply not an option. I started this thread in hopes that a realistic and doable solution might exist that I was unaware of.
Run the rom stock and see if it still happens, or even run the stock rom/kernel. if you don't want to try this then why are you asking for suggestions? christ
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I am asking because there may be a solution that I am unaware of that doesn't require me to put my entire life on hold for months. It is possible that there is no such solution, but I asked in case there was one.
Sorry to have put you out so much.
You mentioned you recently installed exchange sync. Did turning off sync remedy this or have you not tried disabling all sync features?
One other thing to check is the background data usage of your apps. You'd find this under 'data usage' and make sure you enable the wifi tab so you can see data usage on wifi.
skadebo said:
You mentioned you recently installed exchange sync. Did turning off sync remedy this or have you not tried disabling all sync features?
when i did a complete quote and re flash i did not setup the exchange account, but the issue continued.
One other thing to check is the background data usage of your apps. You'd find this under 'data usage' and make sure you enable the wifi tab so you can see data usage on wifi.
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I'll check that out. Thanks.
Sent from my jitterbug using tapatalk.
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My battery also drains at a rate similar to yours however I'm on the CDMA version. Hopefully you can figure out what's going on with yours.

Stock OS

Been poking around here and reading all the posts that people had mentioning battery life on stock/cm11. Is battery life really that good? I find myself trying everything possible (including hardly using the device, turning brightness all the way down, turning off bluetooth & Dynamic perspective) and I find that my phone is dropping like a brick. I can have the phone lose %s in front of me just having the screen open for a few minutes doing nothing else.
I even have two apps to optimize/kill all other apps and I'm finding that this phone is dying faster than a t-mobile pre paid LG L90 I was using prior. I just don't see how people with stock and all the features on are getting more than 5 hours battery life tops. This phone dies while you use it on the charger, which is a first from any phone I've ever used.
How do your experiences stack up? Do I just have a bad unit? Really considering going to cm11 now (really wanted to like Fire OS).
You must have something wrong with the phone. I have had Samsung S3's and S4's and the Fire is far and away the best I have experienced for battery life. I am getting close on two days on a full charge although I do not use it a great deal for voice calls.
dmarchant said:
You must have something wrong with the phone. I have had Samsung S3's and S4's and the Fire is far and away the best I have experienced for battery life. I am getting close on two days on a full charge although I do not use it a great deal for voice calls.
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Are you keeping Dynamic perspective off with a low brightness instead of auto? Don't see how two days is possible unless you absolutely never used the device. I can lose like 10% an hour just on the browser reading text sites.
Fire has the best battery life of any android phone I've owned. I'm on fire os with a different launcher and I have dynamic perspective on (not for home screen obviously). I'm also using auto brightness. I'm rooted with gapps installed. I get great standby time and even in use its good. You should get gsam battery monitor and see what's going on, although I think you might have a broke unit.
Here is a picture from Gsam (I don't have my phone rooted). I think this is pretty bad for only 3:28hrs of screen on time and that was with the screen at the lowest brightness, not on auto. For app usage I have 7% coming from a game I was playing, but the rest of the drain is coming from system and kernel. Would really like to see another users stats with similar screen on time, as I'm pretty sure I could completely kill this phone's battery in 4-5 hours just using silk browser on Reddit.
h ttp://i.imgur.com/JSXxRGN.png
Sent from my SD4930UR using XDA Free mobile app
Ztcc said:
Here is a picture from Gsam (I don't have my phone rooted). I think this is pretty bad for only 3:28hrs of screen on time and that was with the screen at the lowest brightness, not on auto. For app usage I have 7% coming from a game I was playing, but the rest of the drain is coming from system and kernel. Would really like to see another users stats with similar screen on time, as I'm pretty sure I could completely kill this phone's battery in 4-5 hours just using silk browser on Reddit.
h ttp://i.imgur.com/JSXxRGN.png
Sent from my SD4930UR using XDA Free mobile app
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Can you check the kernel wake lock section of the same app?
ratbags said:
Can you check the kernel wake lock section of the same app?
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On the off chance that you or anyone else can help me understand what's going on I ran a ~10% drain test and made a picture including information from WakeLock Detector and GSam. This drain seems very bad considering the screen was only on for a total of 16 minutes and I lost 8% power.
imgur.com/YbgFfmA
Ztcc said:
On the off chance that you or anyone else can help me understand what's going on I ran a ~10% drain test and made a picture including information from WakeLock Detector and GSam. This drain seems very bad considering the screen was only on for a total of 16 minutes and I lost 8% power.
imgur.com/YbgFfmA
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Your phone isn't going into deep sleep. It's hard to determine exactly what's going on there but if you download kernel adiutor (yes, that's the spelling) you'll see its locked at 300mhz most of the time. I know it sounds crazy but have you rebooted? That can often sort out a misbehaving app. Are you rooted? If so deploy greenify.
ratbags said:
Your phone isn't going into deep sleep. It's hard to determine exactly what's going on there but if you download kernel adiutor (yes, that's the spelling) you'll see its locked at 300mhz most of the time. I know it sounds crazy but have you rebooted? That can often sort out a misbehaving app. Are you rooted? If so deploy greenify.
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I am rooted. That screenshot was with using greenify :[
I will get that kernel app.
ratbags said:
Your phone isn't going into deep sleep. It's hard to determine exactly what's going on there but if you download kernel adiutor (yes, that's the spelling) you'll see its locked at 300mhz most of the time. I know it sounds crazy but have you rebooted? That can often sort out a misbehaving app. Are you rooted? If so deploy greenify.
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Do you have any recommended settings for that app? I disabled something that I think is allowing me to enter deep sleep more, but I have to finish testing. Thanks for the help ratbags!
Oh I see what's the wrong.
Battery usage give me a wrong information.
My fire phone lasting about 5hrs turning on screen.
Very very good !!
Thank you.:good::good:
Five hours is good??
Ztcc said:
Five hours is good??
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5 hours of "screen on time" is solid, the combined time incl. standby, etc. is of course much longer. He didn't know how to interpret the statistics from the device, it was a misunderstanding.
Ztcc said:
Do you have any recommended settings for that app? I disabled something that I think is allowing me to enter deep sleep more, but I have to finish testing. Thanks for the help ratbags!
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That kernel app won't help battery life but it will show you how long you spend in deep sleep.
As for greenify, you should greenify all the Google apps. I actually greenify everything except sms app, browser, phone and alarm apps.
Also, this could possibly be some kind of location based frippery. Turn location services off or onto battery saving mode if only temporarily. And turn off auto sync if it's on.

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