I have been getting terrible battery life since I mistakenly reset the battery statistics in recovery.
I have recalibrated my battery, but I am only getting like 8 hours.
What can I use to see what is using the battery? I think there is something in spare parts, but I am not sure what to look at there.
Any apps or methods would help me determine what is chewing it up is much appreciated.
Bielinsk said:
I have been getting terrible battery life since I mistakenly reset the battery statistics in recovery.
I have recalibrated my battery, but I am only getting like 8 hours.
What can I use to see what is using the battery? I think there is something in spare parts, but I am not sure what to look at there.
Any apps or methods would help me determine what is chewing it up is much appreciated.
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It could just be that your phone is incorrectly reporting how much battery life you have since you reset them, and a couple days of usage will just allow it to gather more data and get more accurate.
But if there is an errant app draining your battery, a combination of spare parts and an app called SystemPanel should allow you to narrow it down to what's causing problems.
Plug your phone in for a minute, then unplug it, let the phone sit with the screen off for 25 minutes or so, then go to spare parts->Battery History, then choose other usage and since last unplugged. The running % should be close to the screen on %. If the running % is way higher than screen on, that means something is running while your screen is off.
I paid for the full version of systempanel for the system monitoring feature, but i think you can use the free version to just check which apps are running. Things like google voice should say running, but just about everything else should say background. If you have an app that you downloaded, but haven't been using in a while saying service, there's a good chance that's what's causing your phone to run the batteries out. Garbage apps like Grooveshark (which I still use because I can't live without grooveshark) will run even after you could have sworn you closed out of them.
The paid version of systempanel makes things easier because you can set it to monitor, then come back and look at what apps have been using cpu cycles even when the phone isn't being used. The system processes are always going to use cpu cycles, but apps like Swype will (or did at one point) keep the phone from properly sleeping, and you can tell by all the cpu they're using even when the screen is off.
Ah, that is a good point. 2 apps that I did change were I installed Tiger Text (neat app but rather sure that drains the juice) and I put on a different version of swype.
Thanks for the tips, I will run with that.
More reading I am doing I think the mistake I made, is that I reset my battery statistics when my battery was only half full.
I put in a full battery, reset statistics, and will let it drain, that should calibrate the phone correctly.
Thanks for the tips though, I will keep those in mind.
I have poor battery life on my desire, it barely lasts 7 hours. I have tried wiping battery stats etc, and have the screen brightness at 50%. I have read that some kernels can greatly improve battery life, is this true? If so, which would you recommend, and do I just flash it like I would a rom? I am using the latest miui.
Cheers,
Steve
Sent from my HTC Desire using XDA App
They can but finding the underlying app causing the phone not to sleep would be what I'd be looking at. Remove all installed apps and add them 1 at a time and see how the battery goes
EddyOS said:
They can but finding the underlying app causing the phone not to sleep would be what I'd be looking at. Remove all installed apps and add them 1 at a time and see how the battery goes
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Click to collapse
Yeah i've tried this, there's nothing draining the battery.
Not at all
Such battery drainage can only be induced by either heavy usage, or phone not being able to go to sleep.
The differences between kernels in custom roms are merely a shades since all of them are pretty much battery efficient. You won't miraculously jump from battery life of 7 hours to 30 hours. Concentrate on your apps or even better, third party Widgets.
Sent from my HTC Desire using Tapatalk
Probably a hardware fault then - the OS on it's own with no apps installed shouldn't drain a battery that quickly. Did you also turn off the sync options to test that theory?
Personally sounds like a knackered battery/phone
If it isn't apps/widgets (they are the culprit for heavy usage) then it would prob be a faulty battery. I did a little test last month to see how much battery I could lose in 24 hours. I lost 8%. I guess it could be a baseline to start off with.
I Need Help My Batttery Sucks Balls .. Lol Sry but ive been using this epic rom on the newest modem and i mayb get 2 hrs or so on my phone .. which sucks .. how do i fix this ? the battery heats up sometimes while charging ... im sure its the both battery and rom idk?
Did you calibrate the battery? I had horrible battery issues on my hero and started calibrating battery with new roms and has been stellar can't link due to being on phone but search for battery calibration and you will find the post for proper calibration.
Sent from my SPH-D700 using XDA App
http://forum.xda-developers.com/showthread.php?t=884684
calibrate battery thread :]
I've never calibrated my battery and I never will. The phone battery life varies. If your phone is getting hot and dying in two hours, you have a rogue process.
Manage the poorly written applications and you won't even think "battery calibrate" because you'll see upwards of 36 hours of use on your phone.
Realistically, I get about 12 hours of heavy to medium use out of my phone. I do not use any other third party apps to manage my phone except for Quick Info Pro and even that is not used for anything more than status review. I handle memory management through the built-in Manage Applications, services, etc. On weekends, when I'm not texting a lot, I have seen 40 hours without charging.
If you only have stock and never install anyone else's applications, you'll see a huge difference in how applications (poorly written ones) can affect your phone's battery life.
See disclaimer.
Good info from othan, exactly what I tell customers who complain about battery life.
Yeah, that's another thread about battery drain overnight. With some screenshots.
ROM is AOKP b23, kernel s Trinity (tuna).
Sometimes it's about 20%, sometimes only 10. And rebooting phone (maybe with wiping battery stats) just before the night is helpful - then I get about 4-6% drain in 8 hours sleep time. And the phone isn't awake at that time (as you may see on graph), it's deep sleeping.
As BetterBatteryStats and SystemPanel tell me, it's system processes that use much of the battery at that time - few 'kworker' ones. I've searched the forums for some time, but still can't find a good explanation why they drain so much, nor why rebooting helps.
1) change kernel - yeah, I know, I can try that, but with stock kernel I've had the same problem - so I try to find the root of it, not just slap a few different kernels and see which one works better.
2) reboot every time before sleep - well... that's just isn't very convenient and weak way to deal with the problem.
See attached screenshots for further info.
So, any clues about what I can do to improve the situation?
Link
Link
Other than that, I couldn't find any relevant answers... perhaps a runaway system process... I'd recommend switching kernels, as this issue is known and yet unresolved. Seriously though, battery stats reports it using 56s, so is it really a major problem that is causing battery drain?
anton2009 said:
Link
Link
Other than that, I couldn't find any relevant answers... perhaps a runaway system process... I'd recommend switching kernels, as this issue is known and yet unresolved. Seriously though, battery stats reports it using 56s, so is it really a major problem that is causing battery drain?
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Click to collapse
I'd check that out, thanks! Yeah I know that it's a known problem, but still can't find any good solution for it...
Well it's the process that uses MOST of the system time during that period, so I guess it's enough to cause a drain. And also, there're multiple kworker processes - each may use a bit, but together they get enough for 10% overnight drain.
Which kernel would you recommend to try next? Franco? Seems pretty popular.
Edit: Seen both of these posts, no good solutions anyway. Will try another kernel, then!
I've had great results with Faux123 and I'm just now experimenting with LeanKernel, which is working well so far (wakelocks nonexistent).
I get the kworkers appearing in system panel too, but it doesnt actually effect my battery life. I lose 4% overnight but they show up in system panel.
Also their percentages never add up correctly. For example system panel shows maybe 1.3% cpu usage in total. But when i click thru to the system processes list, the sum of all kworkers exceed 1.3% by a good amount. So i always just ignore them.
Hmm... So maybe they aren't the root of the problem.
Anything else? Maybe battery need to be calibrated, like charging to 100, wiping stats, then discharging to 0 and again charge to 100?
What's really weird is that excessive drain occurs only with extended no-reboot period. Ie, If I reboot just before night drain will be 4-5%...
Check this out. Normally I get about 10% drain overnight, look at what happened last night..
Completely annihilated the battery, everything turned off.
Anyone have an explanation?
Sent from my Galaxy Nexus using Tapatalk
---------- Post added at 04:05 PM ---------- Previous post was at 04:03 PM ----------
The only thing I can think is that something I was doing when I used the phone before bed, kept some sort of process alive all night.
tixed said:
Yeah, that's another thread about battery drain overnight. With some screenshots.
ROM is AOKP b23, kernel s Trinity (tuna).
Sometimes it's about 20%, sometimes only 10. And rebooting phone (maybe with wiping battery stats) just before the night is helpful - then I get about 4-6% drain in 8 hours sleep time. And the phone isn't awake at that time (as you may see on graph), it's deep sleeping.
As BetterBatteryStats and SystemPanel tell me, it's system processes that use much of the battery at that time - few 'kworker' ones. I've searched the forums for some time, but still can't find a good explanation why they drain so much, nor why rebooting helps.
1) change kernel - yeah, I know, I can try that, but with stock kernel I've had the same problem - so I try to find the root of it, not just slap a few different kernels and see which one works better.
2) reboot every time before sleep - well... that's just isn't very convenient and weak way to deal with the problem.
See attached screenshots for further info.
So, any clues about what I can do to improve the situation?
Click to expand...
Click to collapse
Try using the kernel in my signature. this is a proof of what it gave me.
slimldj said:
Try using the kernel in my signature. this is a proof of what it gave me.
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Click to collapse
Great one! Less than 10% drain overnight, 30% per day with moderate-light usage
tixed said:
Great one! Less than 10% drain overnight, 30% per day with moderate-light usage
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Click to collapse
Awesome. Glad it worked.
Sent from my Galaxy Nexus using xda premium
tixed said:
Yeah, that's another thread about battery drain overnight. With some screenshots.
ROM is AOKP b23, kernel s Trinity (tuna).
Sometimes it's about 20%, sometimes only 10. And rebooting phone (maybe with wiping battery stats) just before the night is helpful - then I get about 4-6% drain in 8 hours sleep time. And the phone isn't awake at that time (as you may see on graph), it's deep sleeping.
As BetterBatteryStats and SystemPanel tell me, it's system processes that use much of the battery at that time - few 'kworker' ones. I've searched the forums for some time, but still can't find a good explanation why they drain so much, nor why rebooting helps.
1) change kernel - yeah, I know, I can try that, but with stock kernel I've had the same problem - so I try to find the root of it, not just slap a few different kernels and see which one works better.
2) reboot every time before sleep - well... that's just isn't very convenient and weak way to deal with the problem.
See attached screenshots for further info.
So, any clues about what I can do to improve the situation?
Click to expand...
Click to collapse
Sounds like you may be worrying about battery life too much. If this is worrying alot you may want to get an iphone. The 1750 mah battery is only rated at 10 hours. Lower your expectations about drainage per hour. The phone is constantly pinging cell phone towers to find the best signal possible even in deep sleep. That is the bulk of your drainage.
das7982 said:
Sounds like you may be worrying about battery life too much. If this is worrying alot you may want to get an iphone. The 1750 mah battery is only rated at 10 hours. Lower your expectations about drainage per hour. The phone is constantly pinging cell phone towers to find the best signal possible even in deep sleep. That is the bulk of your drainage.
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Click to collapse
No thanks, iOS is too restricted for me, and I like Google hardware better (I mean revised by Google, not manufactured ofc)
Yeah, I know, but that's 10 hours of USAGE. And I was getting much differentiated results in the same conditions (like <10% one night, >30% other) - that's what was worrying me.
I don't expect it to last whole week or anything, but 30% of power lost in one night when it's just on the shelf doing nothing (not even connected to wifi) - that's absurd. About 5-10% is ok, I guess. That's what I was getting with my Transformer, anyway - less than 1% per hour in sleep mode with wifi off.
Exact same problem. I'm on imoseyon's kernel. If I reboot I lose about5% over night. If not, about 30+. Some app is waking some system process up that is chugging away with the CPU. If I lay it on my bed our some other insulating surface, it is warm. Yes, my phone is entering sleep mode, no app doing wake locks, just kworker going nuts.
I am using samsung galaxy s2 and i am getting the kworker battery bug too. about 15% overnight which sucks.
derycklong said:
I am using samsung galaxy s2 and i am getting the kworker battery bug too. about 15% overnight which sucks.
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Same happening here, but only after flashing the latest CM radio. I guess it might have something to do with that.
link i know it will help you,and let system go into sleep
hi guys, i visit the links posted but i'm still problems with that. Using watchdog app i notice that al least once a day it show me warning message about high use of cpu. In my case the process is kworker/u8: (here there's a number from 0 to 6)
My question is: what specific process causing that? There's a way to know it? I ask it because i don't think is battery releted, cause battery is very good, excluding for the monitor usage which is what consumes more...
I know that this is a really old topic but seeing that there's still at least one fresh enquiriy i thought i'd chime in...what in effect may indeed help you is wiping the cache (it did help me on several kworker/u occassions in the past). To do so you have to access the respective menu by booting your tablet while pressing the up volume rocker and the power button simultaneously. Hope this helps
Apologies if this seems well travelled path, and I've certainly led a lot over the internet. But I just wanted to describe my issue and see if I've missed anything!
I've had chronic battery issues, and had a spare and I'd swap them in/out but I came to conclusion that wasn't great as it may not read battery stats well doing two different batteries. I was getting less than 12 hours between batteries. So now i have Powerbear 6500mAh battery and have been using it for a week. Apart from a heavy usage day I can now get 24 hours out of it. Superb.
Then as if by magic, trouble returns! The battery drained 11% overnight in seven hours. That's in airplane mode. 11% of a 6500mAh battery! Battery stats shows nothing has used battery in particular, just phone idle. Wake locks there was nothing significant. Now 5 hours later it's dropped another 43% with not a lot of use, just web and some maps.
Things I've tried:
Making sure the option to store activity logs is off.
Location turned off for all but most vital apps, like maps.
No automatic syncing of anything.
Greenify - and I shut down anything I can.
Wakelocks - ensuring nothing is abnormal, got rid of CityMaps due to excessive wakelocks.
Airplane mode at night - no cell, no wifi.
I rooted and reset the OS about six months ago, so that is my logical next step... but I'd rather understand what could cause 11% of 6500mAh to be drained by doing nothing!
Any thoughts of what I might have missed?
Stats: LG G4. LG-H815. Android 6.0. Build MRA58K. Software V20g-EUR-XX.
Thanks
Antony
What root method did you choose? SuperSU or Magisk? With Magisk my phone was hot (~70C) and got only 1.5h screen time, when i switched to SuperSU, it was gone.
Install GSam Battery Monitor app from the Play Store and see if it helps show you what's using up the battery.
I know you are not going to like reading this but
I don't use these extended batteries for a reason. Phone wasn't made for it.
Try your original battery
These extended batteries are also known to crap out after 500 charges
Use battery monitoring app to help you determine what's happening
MattheewHun said:
What root method did you choose? SuperSU or Magisk? With Magisk my phone was hot (~70C) and got only 1.5h screen time, when i switched to SuperSU, it was gone.
Click to expand...
Click to collapse
SuperSU
divineBliss said:
Install GSam Battery Monitor app from the Play Store and see if it helps show you what's using up the battery.
Click to expand...
Click to collapse
I removed it as it never provided me anything worthwhile. I think it used to just say Android used the power or something vague. I can reinstall it, but there was never one specific identifiable reason I remember that.
deltadiesel said:
I know you are not going to like reading this but
I don't use these extended batteries for a reason. Phone wasn't made for it.
Try your original battery
Click to expand...
Click to collapse
Then I have to put up with a phone that won't last 6 hours, which is what led me to get additional batteries and now the PowerBear.
That said the following night, it used about 2% overnight... so erratic to say the least! And I have 59% left after 10 hours use. It's just the randomness the other day that spooked me. I did learn it was low on disk space, could have that caused that particularly bad event?
Did you try switching kernel? I can suggest you to try Imperium Kernel, that will reduce the system's usage. Other than this i have no idea. :\
---------- Post added at 06:47 PM ---------- Previous post was at 06:44 PM ----------
deltadiesel said:
I know you are not going to like reading this but
I don't use these extended batteries for a reason. Phone wasn't made for it.
Try your original battery
These extended batteries are also known to crap out after 500 charges
Use battery monitoring app to help you determine what's happening
Click to expand...
Click to collapse
What you said, is nosense for me. Some custom batteries are better than the original. You jsut must be lucky to pick the right one.
MattheewHun said:
Did you try switching kernel? I can suggest you to try Imperium Kernel, that will reduce the system's usage. Other than this i have no idea. :\
Click to expand...
Click to collapse
Thanks. I was thinking of doing something like that. Thanks for the heads up, there's a lot of choices... I'll check that one out.