Database Develop

Does kernel affect battery?

hi guys im running firebird rom and my battery life sucks really bad. i take it out of charge at 10am and it dies around 4.30pm so does kernel makes battery life bad?
my kernel says : 2.6.32.9 [email protected] #28
please share

Depends. Some kernels are overclocked and will use more battery. Some are poorly put together and will use more battery. Some may not work well with one ROM, but great with another. Not knowing what you do with your phone it is hard to point a finger at the kernel. Poor reception, lots of wifi on time, lots of screen on time, GPS use, push e-mail...lots of things take battery. You need to see what it is you're using and whether that and not the kernel is your issue.

Short answer is yes, kernel affects the battery. All you can do is try a few different ones and see which is best for your usage.

im on messenger services and about 40-50 text and 3 mins of calls and my 3g on and brightness all the way down. no gps no bluetooth or wifi. i use the phone pretty much straight from 10am with maybe 2 mins here and there screen off

sofia-captivate said:
im on messenger services and about 40-50 text and 3 mins of calls and my 3g on and brightness all the way down. no gps no bluetooth or wifi. i use the phone pretty much straight from 10am with maybe 2 mins here and there screen off
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Click to collapse
Well, what more do you want? With that kind of usage I doubt you can do much better with any ROM.

that kinda sux but if the screen is really on that much it is normal, i dont think any rom has been tested to surpass 6 hours screen on time.
one good rom was andromda with which i had a hard time running my battery down in a single day, usually went 2 without a problem and i do a lot of texting. also an old version of perception built off a bell vibrant i9000m rom was outstanding.
kernels affect battery life but clock speed on the cpu has less to do with it than many people think, the assumption is faster cpu speeds means more power drawn but the cpu is governed, the governor setting have a lot to do with it. think about it, is it better for the cpu to take 4 seconds on an operation @ 600mhz or do the same operation in 2 seconds @1.2ghz? depends on alot of things reallly but thew difference is alot smaller than people expect. there is also kernelhz which i dont know much about but reportedly if set down to 100 to match another frequency(cant remember off the top of my head) will increase battery life.
the kernel controls many aspects of the system but i haven't seen a kernel that has had a huge increase in battery life given the same rom since the 2.1 days. and even then the battery life wasnt as good as a couple of the 2.2 roms. it seems to me that the rom has more to do with battery life. some vibrant ports have severe battery drain issues on the captivate. some i9000 ports have amazing batery life but most are about the same as stock to slightly better.
if battery life is a problem first you want to see if any processes keep the phone from sleeping. figure out what apps show in the running process list and try killing them, if they don't die/they start back up then freeze them in titanium backup and see if anything makes a difference. careful freezing system processes, some are not detrimental, most are.
other tips are to try apps that manage 3g like juice defender. and use wifi when you can 3g is a bigger battery hog than wifi. also there may be a way to set the phone to default to edge instead of 3g but i think it varies with the build of the rom, you will have to research that one.
other things to look at is weather you sync to google, facebook, twitter ect. those feeds widgets can eat battery as well as the sync process. weather widgets like beautiful widgets seem to have an effect on some of the vibrant ports i used but not as noticable on other roms.

Yikes...that is some awful battery life. I'm surprised because speedmod (and it's variants) is pretty well accepted as being the best kernel for battery life. There are many threads around here for improving battery life. I have personally found that my biggest battery user was constantly checking how much battery I had used.

If you are barely turning your screen off that is good battery life. You will never make it much past 5hrs screen time. Where people get like 40hrs on a charge is when the phone its not actually used, and their set up has good standby performance
CM7

When I used assonance I would get three days of battery life.
Sent using smoke signals.

As some have said screen time is the single biggest battery user. My phone will last for about 3 hours of screen on time. So I could have my phone die in 3 hours, or 2 days, it all depends on how often I'm turning that screen on.

Connor1 said:
When I used assonance I would get three days of battery life.
Sent using smoke signals.
Click to expand...
Click to collapse
Screenshot of total up time and screen-on time?
Sent from my SAMSUNG-SGH-I897 using XDA App

sf1120 said:
Screenshot of total up time and screen-on time?
Sent from my SAMSUNG-SGH-I897 using XDA App
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Click to collapse
Here's a screenshot of my normal battery usage when I had a captivate, using Precision 3.5.
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wifi uses less power than 3g, my phone only drops 5% over an 8 hour sleep with wifi on the whole time.

ryude said:
Here's a screenshot of my normal battery usage when I had a captivate, using Precision 3.5.
Click to expand...
Click to collapse
Nice ryude.Mine's not as good,but close.So it just proved to me that when ppl say they got 3 days out of a single charge,they're actually not using their phone all.I'm not trying to flame anyone,just my honest opinion.I bought my phone so I can use it,not leave it on a desk.Here's mine.
Forgot:Running Phoenix Ultimate..

sf1120 said:
Nice ryude.Mine's not as good,but close.So it just proved to me that when ppl say they got 3 days out of a single charge,they're actually not using their phone all.I'm not trying to flame anyone,just my honest opinion.I bought my phone so I can use it,not leave it on a desk.Here's mine.
Forgot:Running Phoenix Ultimate..
Click to expand...
Click to collapse
Yeah, I would say if you're not getting at least 3 hours screen time then you aren't using your phone that much.

Trusselo said:
wifi uses less power than 3g, my phone only drops 5% over an 8 hour sleep with wifi on the whole time.
Click to expand...
Click to collapse
Not if you're in a bad reception area.
This is what I average on Andromeda. Some wifi, some GPS tracking, lots of music streaming via BT.

Of course, nearly everything comes into play. Modem, ROM, use, etc.

Here's my battery life from yesterday..

sf1120 said:
Here's my battery life from yesterday..
Click to expand...
Click to collapse
What ROM are you using?

Miami_Son said:
What ROM are you using?
Click to expand...
Click to collapse
Phoenix Ultimate,jk4 and speedmod.Basically whatever adam threw together.
Sent from my SAMSUNG-SGH-I897 using XDA App

Serious batttery issue, is this normal?

The battery on my Note is decent, giving me 2-3 days of moderate use or roughly a full day with heavy use.
Problem is when the battery decreases to around 40% & lower, the battery drains like anything even when not used.
Simply idling the phone would lose roughly 5-6% over an hour.
When the battery is around 20% it will easily run down to 10% and less over a period of a few hours when doing NOTHING.
Yet when then battery is at 80 & 90% it will lose around 5-6% battery over many hours.
Here is the proof, I took a screenshot of the battery information & you will clearly see rapid drops in battery life when at 50% and less.
On the last 20% it goes down even faster, and this is with NO use at all.
I hope this is fixed in ICS as it's a serious problem.
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Pretty flat at the end there, even while being used.
I have seen that reported elsewhere, but not seen it on my own Note. I have just settled it into a new pattern after rooting and deleting the stats, so I am not certain right now, but I think it remains fairly even over the whole cycle.
I am not sure I could use is as little as you appear to have however!

I've yet to get my Note battery to last until 2 days, and not even a full 24 hours (almost heavy usage on data network).
So I guess that's good enough that yours lasted for almost 3 days!

eman369 said:
I've yet to get my Note battery to last until 2 days, and not even a full 24 hours (almost heavy usage on data network).
So I guess that's good enough that yours lasted for almost 3 days!
Click to expand...
Click to collapse
Haha, don't get me wrong, I think the battery is great.
I'm only wondering why it goes so quickly when it's at 40% and under...

This seems odd. I'd say I'm having the same issue (the poor battery performance).
I've been trying to analyse this but don't have much time to do it right. From what I'm seeing the battery usage graph looks legit. Phone seems to enter deep sleep states. Nonetheless Note seems to drain the battery a lot faster in deep sleep than my Galaxy 3 does, which is odd considering Note having 3 times larger battery capacity.
What seems odd too is extremely slow suspend/resume cycles (e.g. the time it takes for the phone to turn the screen off/show lock screen). It takes more than a second on my Note to show the lock screen. I've seen other report this too. A friend of mine shocked a salesman on a Samsung booth lately when he showed him that. Galaxy S2 is thunderfast, while Galaxy Note takes ages to resume. My Galaxy 3 takes <0.5s. I've looked into the `dmesg` output for some hints. I'm no guru in this, but `ehci` seems to be taking some time to suspend/resume. This also converges with my other observation - Galaxy Note notoriously locks up when playing with usb host. I've tried couple of keyboard/mouse on usb - some of them do work, some of them don't (I can see 'Mouse/Keyboard' connected on the statusbar but there's no mouse pointer nor keyboard input is possible; after some time it's most likely to hard lock the system).
Thus I would suspect buggy usb host/otg hardware/driver that's leading to such a poor battery performance. But hey, maybe it's just me and my theories. Nevertheless something must be broken.

My battery is terrible.
With soe usage, mostly data, I'll drop from 100% to 60% in 3 to 4 hours.
Im on rocket rom.
Only 1 heavy gmail syncing and 3 other gmails with barely an email per week and facebook syncing.
And microsoft exchange calendar syncing (no email syncing).
No twitter.
No other apps.
But im on H+ most of the time.
---------- Post added at 05:12 PM ---------- Previous post was at 05:11 PM ----------
I know HSPA (H+) eats battery because I turned off my data for 2 days and battery latest me 1.5 days.

CorruptedSanity said:
My battery is terrible.
With soe usage, mostly data, I'll drop from 100% to 60% in 3 to 4 hours.
Im on rocket rom.
Only 1 heavy gmail syncing and 3 other gmails with barely an email per week and facebook syncing.
And microsoft exchange calendar syncing (no email syncing).
No twitter.
No other apps.
But im on H+ most of the time.
---------- Post added at 05:12 PM ---------- Previous post was at 05:11 PM ----------
I know HSPA (H+) eats battery because I turned off my data for 2 days and battery latest me 1.5 days.
Click to expand...
Click to collapse
I found gmail syncing kills the battery very very fast. try to disable auto sync and see if that helps

Moved To Q&A​
All questions in the Q&A section please!​

indie said:
I found gmail syncing kills the battery very very fast. try to disable auto sync and see if that helps
Click to expand...
Click to collapse
Why in the world would I do that?
Its 2012. I need/want my data pushed.
Turning off auto sync would be like me going back to 2004.

CorruptedSanity said:
Why in the world would I do that?
Its 2012. I need/want my data pushed.
Turning off auto sync would be like me going back to 2004.
Click to expand...
Click to collapse
I just made a suggestion, that's all. I'm trying to help you save battery. If you want all the bells and whistles and want battery then going for the extended battery is your route. I don't think you will get much more from the standard.

I have had troubles with battery life since I bought this beauty. I have been trying several Roms and Kernels, and none seem to make much difference. I also tried selecting among governors but still no better luck.
When I have 20-24hrs battery life it is very good!
The only thing that allowed me to save some was to reduce lcd intensity, and use the Note in dark environments.
Maybe I am using it more than the average user, but with all the opportunities it provides, I can hardly refrain myself from using it.
My typical use is:
- Radio and surf when going to work and home,
- Email and surf every hour at work
- About 10-20mn phone calls
- Listening to music when I can be alone working (1-2 hrs each day)
- Tablet use when at home.
Do you consider this to be a very heavy usage of the phone ?

I have just had my Note for a few days. The biggest battery eater in my case is WiFi. If I switch it off, the discharge is quite acceptable (a couple of percent during the night). I am not deep into Android internals, but it seems my 5-year-old Palm TX had much better WiFi power management than my brand new Note!
BTW, I am on a stock ROM and have disabled auto-sync.

Have you tried wiping battery stats? Let the phone completely die then charge it without interruption until it's been on 100% for an hour then boot to CWM and wipe battery stats
Sent from my Galaxy Nexus using XDA App

indie said:
I just made a suggestion, that's all. I'm trying to help you save battery. If you want all the bells and whistles and want battery then going for the extended battery is your route. I don't think you will get much more from the standard.
Click to expand...
Click to collapse
I thank you.
I wasn't lashing out at you. I know you were trying to help.
It was directed to the R&D at Samsung.
sudisk said:
Maybe I am using it more than the average user, but with all the opportunities it provides, I can hardly refrain myself from using it.
My typical use is:
- Radio and surf when going to work and home,
- Email and surf every hour at work
- About 10-20mn phone calls
- Listening to music when I can be alone working (1-2 hrs each day)
- Tablet use when at home.
Do you consider this to be a very heavy usage of the phone ?
Click to expand...
Click to collapse
I do not consider the battery able to cope with the features.
I'm on H+. why wont I have everything auto syncing?
Battery should support the phone features.
Rght now I'm always connected to a power source via USB or car charger or home charger.

CorruptedSanity said:
Why in the world would I do that?
Its 2012. I need/want my data pushed.
Turning off auto sync would be like me going back to 2004.
Click to expand...
Click to collapse
well... then stop complaining about your battery drainage...
The other guy were simply gave you a advice as to why your battery were used up so fast....

mustang2012 said:
well... then stop complaining about your battery drainage...
The other guy were simply gave you a advice as to why your battery were used up so fast....
Click to expand...
Click to collapse
I can complain. I paid $750 for it.
The bells and whistles are there but the battery can't cope. Major flaw in battery implementation.
I already told the other guy i appreciate his help but that defeats the purpose of such an advanced and sophisticated mobile phone.
I had a SE symbian for 3 years then several HTC WM 6 mobiles, then a year of HTC Desire then an iPhone 4 for 1.5 years. I'll head towards the best regardless of brand.
Quit being a fanboy.

mustang2012 said:
well... then stop complaining about your battery drainage...
The other guy were simply gave you a advice as to why your battery were used up so fast....
Click to expand...
Click to collapse
I am not complaining about the battery drainage per-se.
My previous phone was a Nokia N900, which I used all day long for calls, mails, radio listening, ssh to my home computer, etc... and I knew well that I could not use it for more than a day without charging, sometimes even less.
The phone battery was never advertized as being able to cope with such usage, and only announced battery times for 2G/3G calls.
When I first read announcements about the N7000, I read that Samsung decided to increase the battery power to make it last 2 days, which looked nice to me.
Now I have hardly 13 hours of battery time with my usage (see my previous post) and I want to know:
- is it a normal behaviour for the phone?
- is there a way to make things better with the same hardware?
- do I really need to lower my expectations?
If the answer to the last question is yes, I will be of course disappointed but I can cope with it, as I did with my previous phones. As CorruptedSanity already mentioned, my only complains are to the Samsung techs (or advertizers) and not to any member of this forum who are usually able to help beyond my needs.
I hope that screen optimizations will come that will increase the battery life while I use the phone, but my expectations are low.

You can expect around 5 hrs of screen time based on peoples reports here
Sent from my GT-N7000 using xda premium

indie said:
You can expect around 5 hrs of screen time based on peoples reports here
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Yup, that's the killer IMO. I can leave WiFi enabled all day, or use the phone for a couple of hours of calls and a few hours of 'screen time'. Not both!
Before rooting and killing bloatware, I could do neither.

Maximum Ability Maximum Battery Life

Greetings,
So as many of you may know the battery life on the Optimus 2x is terrible. with lots of mixed reports. some ppl 24 hours some ppl 12 hours and even some saying 36 hours. i guess theres a few with like 4-6 hours.. Like me, i find my battery lasts roughly 6-8 hours. when im using the fone for why i purchased it. if im trying to SAVE battery. i can squeeze 10-12 hours out of it.
however, this lead me to think everyone who is trying to save battery finds it usually involves turning off everything u can do without. disabling alot of stuff etc.meaning, ROMS that perform well with everything disabled, would be recommended over those that are not. yet these roms that dont perform so hot under lock down, may actually perform better than the very same rom that out lasted it but with everything on.
what i want to know is, which is the better rom that allows me to have everything ON. im talking
wifi 3g data gps (prob not BT who uses that anyway? j/k) rotation, display brightness, motion sensor, gyro + the works.
which ROM would give the superior battery life over the others, with that in mind. EVERYTHING available.
<rant>
Because im sick of having to look @ my fone when i want to do something and think. well its locked down i have to quick menu or widget enable data, turn on 3g. or wireless. oh now i need gps. watch it chew juice turning on. use it. then turn it off again. seems pointless.
i want all my fone all the time. its discouraging when i know i should be using my phone for alot more. yet i dont because im so worried about trying to conserve battery, im over it. i dont care if it runs out of battery in 6 hours. it was going to anyway, at least i can do anything with it at anytime. withing that timeframe.
</rant>
DISCUSS!

i think ill start by disabling the "% and battery icon " haha

This is a "which is the best ROM" kind of thread and it'll probably be closed by a moderator as these are not allowed here ^^
Anyways, to answer your question I'd say Temasek's CM7 has proven to be the most stable, battery friendly ROM in the past year for me. However, as functional as it is, I find it boring when compared to CM9/CM10 or ICS. Tonyp's PA 12 is another good choice, even with its few flaws (no hwa, for example).
I guess you won't find a definitive answer for this as the experience varies greatly from one user to another. There are way too many variables that make it different for everyone such as the location, the capabilities and strength of each carriers' network, how you have configured your device, the apps installed on it, etc.
In short: try yourself and see which ROM suits your needs the best.

ive tried most the roms on here. but most the time i was disabling everything to see how long the batt would last.

R0B3RTF1SH3R said:
ive tried most the roms on here. but most the time i was disabling everything to see how long the batt would last.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=34748193&postcount=10115

Don't know how people get such a awesome battery I disabled GPS no net on 2g mode brightness lowest no apps installed no syncing..but my battery drains like 6 to 10% in a hour Even without using the phone screen off brand new original battery also ril baseband matching and network full 0% without signal don't know what's the cause flashed every ROM and ever kernel seems this problem is with phone as most of us never get good standby on lg optimus 2x ...
---------- Post added at 02:01 PM ---------- Previous post was at 01:59 PM ----------
Even I removed memory card read in some forum that some corrupted files make your media server to scan again and again..still no success

I dont have everything disabled - for example there is no need to turn off GPS... If its enabled it doesnt mean that it will drain your battery whole the time. It will drain your battery, only when there will be need to use GPS - for example when you open Maps, or application for navigation, tracking and so on...
I think that wifi and mobile data always enabled drains your battery the most. If you could live with mobile data disabled when you dont need it, you could have wifi enabled all the time with advanced settings = turn off when screen is off. Then you could have a lot longer battery life. I dont have wifi enabled all the time and if I dont have time for touching my phone, it could last for cca 3-4 days on CM7. If I have time, it will drop to 1-2 days.

I have off everything so it should last longer than why it doesn't even I deleted Google backup transport.apk as in s3 forum it was mentioned this file keeps draining your battery..Hope somebody have a fix presently on clean nvflash goodbye ROM by Stephan with 2nd core off and screen off frequency set to lowest 216

That's why I bought for the 2x and 4x extended batteries so I can use the phone like it supposed to be used. I also have a external battery tmas back up. Battery life on android period is bad. Ios or windwos phone 7 and 8 just have way more superior battery life. It is just a fact we android people have to deal with. It sucks.
Sent from my LG-P880 using xda app-developers app

Don't know I just feel atleast standby battery life as mentioned by lg for optimus 2x is 500 hours means around 20 days...atleast it should run a day

Yes the battery will last that long if the phone has no apps installed that utilize either data nor location services. My 2x gets great battery life if airplane mode and not touched it will like barely dropped battery at all but as soon as airplane mode is of battery goes to hell especially if u use data over cellular instead wifi. Same in the 4x. Android is the biggest battery hog period. My windows phone 7.5 with the same social apps and location apps and email set up last a whole day in the same usage pattern where my androids not even making it a half day. It is just that bad. Now with extended battery I get like 13 14 hours out of 2x or 4x not great that's on a 4400 mah battery for the 4x where I get on a 1600mah on Windows Phone 23 or more hours. That's the main part I hate about Android. The battery life is just that bad.
Sent from my LG-P880 using xda app-developers app

galaxyfitankit said:
Don't know I just feel atleast standby battery life as mentioned by lg for optimus 2x is 500 hours means around 20 days...atleast it should run a day
Click to expand...
Click to collapse
yeah whats up with that, the box says "stand by battery life 500 hours. hah thats like how long? and talk time on the fone 10 hours. really. it cant even last 10 hours without being on a call how can it last 10 on a call... duH!
so stupid. android battery is just so bad.
how did u get 2days out ya battery? thats like impossible unless i put mine in AEROPLANE mode. then i have IMMORTAL BATTERY!!
u got extended battery. im still using 2 "1500mha's."

R0B3RTF1SH3R said:
yeah whats up with that, the box says "stand by battery life 500 hours. hah thats like how long? and talk time on the fone 10 hours. really. it cant even last 10 hours without being on a call how can it last 10 on a call... duH!
so stupid. android battery is just so bad.
how did u get 2days out ya battery? thats like impossible unless i put mine in AEROPLANE mode. then i have IMMORTAL BATTERY!!
u got extended battery. im still using 2 "1500mha's."
Click to expand...
Click to collapse
Sadly android sadly really is a battery hog. Specially on data it eats thought the battery in freaking no time. I bought extended batteries and they make the phone usable but also bigger but at least I can use it now without having it on the charger every freaking damn minute. I am still thinking about using my windows phone 7 as daily phone again. Because battery is just so much better.
Sent from my LG-P880 using xda app-developers app

dante501 said:
Sadly android sadly really is a battery hog. Specially on data it eats thought the battery in freaking no time. I bought extended batteries and they make the phone usable but also bigger but at least I can use it now without having it on the charger every freaking damn minute. I am still thinking about using my windows phone 7 as daily phone again. Because battery is just so much better.
Sent from my LG-P880 using xda app-developers app
Click to expand...
Click to collapse
thanks for the feedback. yeah having it on charge to do anything is such a crock!.
i hear you. this girl i know has a windows7 fone, she says its very basic but the battery life is great. i think she said standby almost a week. like 6 days, no using. maybe txting i think..
so much better.
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Don't know people posted around 2 days standby with wifi and games don't know they edited or not...I don't remember that I don't charge by phone in less than 12 hours..I agree with you if you don't touch your phone than also it drains in 10 hours
---------- Post added at 09:11 AM ---------- Previous post was at 09:07 AM ----------
Actually I'm die hard fan of Android but surely would try windows don't know what's with lg phones Samsung Android have awesome standby and great battery life my cousin have Samsung s advance it's not add speedy as 2x but battery life is 10 times batter better than 2x ...I think the problem is the processor lg just wanted to enter it's name in world record book and released before proPer testing ...

you may be right sir

Don't know my best stand by time was with Django Manouch 1.7 rom, without any extra apps instaled and using it only when needed, the phone managed 8 hours before reaching 10% of battery life remaining.

R0B3RTF1SH3R said:
yeah whats up with that, the box says "stand by battery life 500 hours. hah thats like how long? and talk time on the fone 10 hours. really. it cant even last 10 hours without being on a call how can it last 10 on a call... duH!
so stupid. android battery is just so bad.
Click to expand...
Click to collapse
i think it's calculated like this
500 hrs standby OR 10 hours call time OR 3 hrs Wi-fi with screen on etc... not all together
some battery related apps are showing you exact time you have left for each purpose (surfing on wi-fi/3G, gaming, standby, listening music,...)
R0B3RTF1SH3R said:
how did u get 2days out ya battery? thats like impossible unless i put mine in AEROPLANE mode. then i have IMMORTAL BATTERY!!
u got extended battery. im still using 2 "1500mha's."
Click to expand...
Click to collapse
i have stock battery that came with the phone... phone is 9 months old...
my standby time is superb (1% loss in 8 hours over night with wi-fi off) so if you calculate it with simple maths - i can get some 700-800 hrs standby in theory (but i think noone leaves his phone untouched for a week )
my 2 cents...

wow, i put mine in 2g / data off / gps of everything off. wifi off. sleep it still be flat in 10 hours. lose 10% per hour.

Have same 10% per hour that too on brand new stock battery from lg service center

Android OS is absolutely murdering my battery

Any thoughts on what's going on here? I've done a bit of googling around and I can't seem to find anything definitive.
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I'd say 13 hours sitting at 50℅ is great. How much battery life do you normally get? Or what do you expect to get?
Sent from my XT1058 using XDA Premium 4 mobile app

You wouldn't happen to be running GEL or a variant of it, would you? I'm having the same issue and I'm running GEL and I think that's causing the "wakelock" that makes Android OS appear as a battery hog.

matt99017d said:
I'd say 13 hours sitting at 50℅ is great. How much battery life do you normally get? Or what do you expect to get?
Sent from my XT1058 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Sitting at about 1:45 screen-on time, which is pretty damn good. Today was actually a better day, other days have been much worse.
balleron24z said:
You wouldn't happen to be running GEL or a variant of it, would you? I'm having the same issue and I'm running GEL and I think that's causing the "wakelock" that makes Android OS appear as a battery hog.
Click to expand...
Click to collapse
Yes, I am running GEL--interesting. Might switch over to Apex or something and see how tomorrow goes.

I've been running GEL and I keep getting mixed results. I'm about ready to try something else.
Sent from my XT1058 using XDA Premium 4 mobile app

I'm going to do the same. When I first ran 4.4 on my phone I hit 3.5 hrs screen on time no problem. Now I'm hitting like 1.75-2 which isn't bad but isn't the 24 hour battery Moto says
tekhna said:
Sitting at about 1:45 screen-on time, which is pretty damn good. Today was actually a better day, other days have been much worse.
Yes, I am running GEL--interesting. Might switch over to Apex or something and see how tomorrow goes.
Click to expand...
Click to collapse

Android OS will appear to take all kinds of battery when the phone isn't doing anything..... But after you rack up some good screen time it "usually" drops way down in the percentage. Your screen shot shows you haven't used the phone much... So Android OS will be high.... Cause not much else has been using battery.
Sent from my XT1058 using Tapatalk

matt99017d said:
I've been running GEL and I keep getting mixed results. I'm about ready to try something else.
Sent from my XT1058 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
After a bit of Googling around I'm wondering if maybe the culprit is GEL's "Ok Google" voice prompt? Apparently it can cause some wakelocks and it's redundant on our phone anyway.
kj2112 said:
Android OS will appear to take all kinds of battery when the phone isn't doing anything..... But after you rack up some good screen time it "usually" drops way down in the percentage. Your screen shot shows you haven't used the phone much... So Android OS will be high.... Cause not much else has been using battery.
Sent from my XT1058 using Tapatalk
Click to expand...
Click to collapse
Well I had nearly two hours of screen-on at that point so I wonder what much phone use is to you? And even if it drops relative to the screen it's still consuming a lot of power absolutely.

Also it appears that "Android OS" isn't any one process but "Provides basic operating system services, message passing, and inter-process communication on the device." So the actual culprit might be hard to track down if it's a rogue program routing its wakelocks through Android OS.

kj2112 said:
Android OS will appear to take all kinds of battery when the phone isn't doing anything..... But after you rack up some good screen time it "usually" drops way down in the percentage. Your screen shot shows you haven't used the phone much... So Android OS will be high.... Cause not much else has been using battery.
Sent from my XT1058 using Tapatalk
Click to expand...
Click to collapse
As I understand it, the percentages shown for each entry will always total 100%. If the only process using your battery was the OS, then it would show 100%. That would not mean the OS is a battery hog. Just that of all the possible users of the battery, the OS was currently the only one.
A better way to evaluate the total battery picture is to determine the overall drain per hour. In the example shown above, you are draining at an average rate of 3.5%/hour. Since Android is shown as 26%, that means Android is using the battery at an average rate of 0.92%/hour.
By comparison, I have every background process disabled that I can easily disable. I show a standby drain of about 1.2%/hour. Android is showing currently a discharge rate of 19%. That translates to a discharge rate of 0.228%/hour for a phone in standby with nothing going on. Doesn't sound too bad to me.... Android in your actively used phone is using the battery at a rate of about 3X that of mine in standby.
Paul

pgoelz said:
As I understand it, the percentages shown for each entry will always total 100%. If the only process using your battery was the OS, then it would show 100%. That would not mean the OS is a battery hog. Just that of all the possible users of the battery, the OS was currently the only one.
A better way to evaluate the total battery picture is to determine the overall drain per hour. In the example shown above, you are draining at an average rate of 3.5%/hour. Since Android is shown as 26%, that means Android is using the battery at an average rate of 0.92%/hour.
By comparison, I have every background process disabled that I can easily disable. I show a standby drain of about 1.2%/hour. Android is showing currently a discharge rate of 19%. That translates to a discharge rate of 0.228%/hour for a phone in standby with nothing going on. Doesn't sound too bad to me.... Android in your actively used phone is using the battery at a rate of about 3X that of mine in standby.
Paul
Click to expand...
Click to collapse
Yup. My phone is debloated to crap, Greenified and everything Motorola related is frozen... Except active notification. I get great battery life and my overnight, untouched phone standby is around 1 percent per hour.
I'd say that's pretty good. I've seen better idle loss than mine, tho can't explain how they got that... I've compared with others and with similar setups, they just get better idle loss for some reason. But I can live with my 1 percent per hour because I still get well over 24 hours total battery life and 5 to 6 screen on hours.
By the end of my battery life my "Android OS" is usually around 10 percent in gsam. Half way through my charge it's usually double that. But it lowers as time goes on.
Sent from my XT1058 using Tapatalk

kj2112 said:
Yup. My phone is debloated to crap, Greenified and everything Motorola related is frozen... Except active notification. I get great battery life and my overnight, untouched phone standby is around 1 percent per hour.
Click to expand...
Click to collapse
Interesting that my 1.2%/hr standby drain is almost as low as yours. I am not rooted or greenified. I just made sure nothing except contacts and calendar auto-syncs. I also use DS Battery Saver to put most apps to sleep and turn off data and WiFi when the phone is in standby.
I have been avoiding trying to root due to the complex process and possibly creating issues. It looks like maybe it would not buy me much better battery life than I get now.
Paul

pgoelz said:
Interesting that my 1.2%/hr standby drain is almost as low as yours. I am not rooted or greenified. I just made sure nothing except contacts and calendar auto-syncs. I also use DS Battery Saver to put most apps to sleep and turn off data and WiFi when the phone is in standby.
I have been avoiding trying to root due to the complex process and possibly creating issues. It looks like maybe it would not buy me much better battery life than I get now.
Paul
Click to expand...
Click to collapse
You don't have to root to have good battery. But for those having issues, you usually have to have root to do anything about it. Lol
The "should I root" debate goes beyond battery reasons tho. Getting rid of ads, removing system apps you don't want, doing proper backups, seeing what your battery is doing indepth (since you need root on 4.4 to do that), customizing your ui..... All benefits of rooting. And controlling your battery drain also.
Some people seem to have great battery out of the box.... And some don't. So if yours is good, and none of the above matters to you, then there's probably no reason to root.
Greenify is more helpful for stopping apps that like to come on after certain events, or stay on after you use them. Like maps for example. You can make it a user app with titanium backup and greenify it so it stays off when you don't need it. Another example, games. Allot of games run on their own and take a toll on your battery. You can hibernate them and make sure when you aren't playing them, they stay off.
But like I said... As far as battery goes...... If your battery is great unrooted, then no need to root for that reason.
Sent from my XT1058 using Tapatalk

I rooted regardless. Even though my battery life is excellent. I wanted Ad block, and the circular battery percentage without widgets. Maybe a few other things, but I like the control you have with root. So I will always do it.
Sent from my Moto X

I have found that when I leave intelligent voice commands on, android OS keeps eating my battery because the phone never really enters in deep sleep, I guess it's because it needs to be awake for the command to work
When I disable it, the battery really gets improved, with voice commands on I get 1% drop per hour overnight, with it turned off, I am able to get by 8 hours with 0 to 1% drop.
Also, if I have voice off but 3g/4g/wifi on, even if I don't get notifications, my phone do not enter in deep sleep, it goes back to the 1% drop per hour.
On the daily usage, I didn't see much of a difference between localization on neither of the 3 options (high accuracy, battery saving and the other one), but I noticed a slight difference between Google Now on and off.
In the end, I get a great battery life without voice commands and google now, once I got 2 days and a few hours with light to moderate usage (3g and wifi on all the time, almost 4 sot, some browsing, whatsapp, facebook, a few phone calls and photos), but it comes to the point that I could have any other phone to have the basic android function and get a great battery life, the point for which I got the moto x are those great features at the price of some battery, c'est la vie, with all those things on I am still able to get through the day, so I'm really happy with it, even the android OS having a huge battery consumption.

I had to freeze Motorola SLPC service (and related processes) to stop from having so many CPU wakeups. I greenify'ed one or two things but they honestly weren't really responsible for the problem. It's all those damn cpu wakeups. Basically froze all things Moto (except for AD, TC, and Assist) and it seems to have gone away. I even set my network accuracy back to high (some people stated that leaving it on Device Only was the only non-battery killer).
At this point, I'm thinking I'll return the X and keep the N5. The Moto X situation on XDA is looking to become another Rezound situation (where none of the users think there's anything that needs improving on the phone and development is non-existent short of bounties and flamewars).
For the first time, I wish I could have the OEM OS with just a few CM/other ROM cherry picks. As it is now, I don't even have a recovery image on the phone. I could live with that, except that I can't flash anything to the phone and Xposed only goes so far.
Currently can't have dbm in status bar, no Voice+, no encrypted messaging. Moto Assist doesn't turn on BT when in driving mode which is a shame because my car is my BT trusted device, speaking the PIN to unlock my phone seems to just get the voice command sequence stuck..

Not getting this "awesome" battery life??

Hey all. I just got my s6 active via insurance upgrade about 5 days ago.. I expected more battery from what I read... I unplugged it this morning at 525 and by 625 I was at 92%. Is this normal? The battery screen doesn't add up to the battery % lost. I'm just trying to figure out how everyone is getting this great battery. Is it possible they sent me a referbed with a used battery? Many days/weeks of running the phone will it take in order for the battery to even out?

uscg.matthew said:
Hey all. I just got my s6 active via insurance upgrade about 5 days ago.. I expected more battery from what I read... I unplugged it this morning at 525 and by 625 I was at 92%. Is this normal? The battery screen doesn't add up to the battery % lost. I'm just trying to figure out how everyone is getting this great battery. Is it possible they sent me a referbed with a used battery? Many days/weeks of running the phone will it take in order for the battery to even out?
Click to expand...
Click to collapse
Seems like your phone doesn't go into deep sleep. There is a rogue app that is probably causing your phone not going into deep sleep. Find the app cure the problem.
Yes it does take many cycles for the battery to reach optimal battery life

Nothing keeping it alive.... Cpu sleep time is the majority of the time. I do use my phone heavily. But i get about the same life as I did with my s5 active..

Same here. I "upgraded" from a 6S on the premise of much better battery life and waterproof without the need of a LifeProof case.
So far I'm getting about the same, maybe less life out of it than my iPhone. I've been out of the Android game for almost 2 years, what can I do to fix this?
Based on battery tests and whatnot, I should be losing around 6-7% per hour, instead of the 10-12% I'm losing now, about on par with an iPhone with half the battery size.
Any help is appreciated.
EDIT: Noob mistake, forgot to mention I'm on the forced 5.1.1 version.
Sent from my Galaxy S6 Active

theking_13 said:
Same here. I "upgraded" from a 6S on the premise of much better battery life and waterproof without the need of a LifeProof case.
So far I'm getting about the same, maybe less life out of it than my iPhone. I've been out of the Android game for almost 2 years, what can I do to fix this?
Based on battery tests and whatnot, I should be losing around 6-7% per hour, instead of the 10-12% I'm losing now, about on par with an iPhone with half the battery size.
Any help is appreciated.
EDIT: Noob mistake, forgot to mention I'm on the forced 5.1.1 version.
Sent from my Galaxy S6 Active
Click to expand...
Click to collapse
The 5.1.1 version was a battery hog for me too. Before it, i would make it til bedtime with about 30-40% battery of moderate usage. During the 5.1.1 upgrade i was at 40-50% before lunch! Had to charge twice daily. Now with Marshmallow, i'm back up to all day battery. Even lately being a heavy user, it'll generally last all day. I might be at 5% by bedtime, but it'll last all day.

tCizler said:
The 5.1.1 version was a battery hog for me too. Before it, i would make it til bedtime with about 30-40% battery of moderate usage. During the 5.1.1 upgrade i was at 40-50% before lunch! Had to charge twice daily. Now with Marshmallow, i'm back up to all day battery. Even lately being a heavy user, it'll generally last all day. I might be at 5% by bedtime, but it'll last all day.
Click to expand...
Click to collapse
How much SOT do you get?
I lose about 6% per hour if I watch videos on wifi, however I lose 1% every 6-7 minutes if I'm using my phone for anything else.
What system process is killing the battery? There's no reason I shouldn't get over 12 hours of SOT from daily usage.
Sent from my S6 Active

..

captaingowa said:
One process that I have noticed in the past that will crush your battery is the Microsoft exchange server..
Click to expand...
Click to collapse
That's what I'm talking about. I used to freeze basically all non vanilla processes back in the G2 days with Titanium Backup, how can I freeze the Exchange server? It doesn't show up under "Applications" in settings.
Currently on 6.0.1.
Sent from my S6 Active

theking_13 said:
How much SOT do you get?
I lose about 6% per hour if I watch videos on wifi, however I lose 1% every 6-7 minutes if I'm using my phone for anything else.
What system process is killing the battery? There's no reason I shouldn't get over 12 hours of SOT from daily usage.
Sent from my S6 Active
Click to expand...
Click to collapse
I don't know how to say this without sounding condescending, i don't mean to, but you're insane if you think you should get anywhere near 12 hours SOT. Let alone "no reason I shouldn't get over 12 hours of SOT". I doubt I could get 12 hours SOT with 2 batteries.
I average 5-6 hours SOT which i think is actually pretty awesome, (And that's with the dark theme). I honestly don't count battery percentages and compare videos to surfing/browsing. I just know that i can use my phone all day and I don't have to charge it until bedtime.

tCizler said:
I average 5-6 hours SOT which i think is actually pretty awesome, (And that's with the dark theme).... I just know that i can use my phone all day and I don't have to charge it until bedtime.
Click to expand...
Click to collapse
Their web browsing test is a more realistic expectation, which is why I said 12. They got 16 hours, which I don't doubt, but this phone draining comparably to a 4+ year old HTC? Not at all impressed.
I have screenshots where I tested their results vs actual daily usage and they were very close for every phone.
But no worries, I'm glad you're satisfied with your phone's performance.
Sent from my S6 Active

..

theking_13 said:
Their web browsing test is a more realistic expectation, which is why I said 12. They got 16 hours, which I don't doubt, but this phone draining comparably to a 4+ year old HTC? Not at all impressed.
I have screenshots where I tested their results vs actual daily usage and they were very close for every phone.
But no worries, I'm glad you're satisfied with your phone's performance.
Sent from my S6 Active
Click to expand...
Click to collapse
What web browsing test are you refering to? I'd like to run the same test and see what i get. Almost nobody gets over 6 hours....
http://forums.androidcentral.com/sa...-how-much-screen-time-you-getting-charge.html
A few new phones have come out with massive batteries, but still not 12 hours SOT. One guy with a 10Ah zerolemon on his note 4 was able to get 16 hours (unverified), but that's the best i've ever heard.

http://blog.gsmarena.com/samsung-galaxy-s6-active-battery-life-test/
The One X, S3, LG G2, and iPhone 6 & 6S web browsing results were great representations of what I could expect as far as smartphone battery goes. I've had more phones than I can count, but those were the ones I kept the longest and remember the results off the top of my head.
I can find my old One X SOT screenshots to further prove my point.
Sent from my S6 Active

theking_13 said:
http://blog.gsmarena.com/samsung-galaxy-s6-active-battery-life-test/
Click to expand...
Click to collapse
This makes no sense to me. In their test, the battery lasted longer playing videos, than web surfing? Something is off here. I've never seen a phone have more than 6 hours SOT, ever (with the exception of extended batteries). Maybe if the phone was in extreme battery saver mode and the screen was at the lowest setting possible, and it was only on 3g, it might be possible to get 6 hours. I'm not calling you a liar, or the article you posted a lie, i just have to believe something else is going on. If i was to get 12+ hours of SOT, for me, that would be equivlent to the phone lasting me all work week.
I hope you get your battery life figured out, but i have to believe we're on different pages here about something. There was an update pushed out this morning, maybe it will help a little.

Not getting this "awesome" battery life??
Yes, this is due to less CPU usage and videos/movies are not almost entirely white.
I looped a couple of YouTube movies and left the S6 Active running all night at 50% brightness with only wifi on. I woke up, 8 or so hours of SOT, and the battery has 59% left. This leads me to believe it's a system app, more than likely a Samsung one, since all of my other Android phones don't have this issue.
I'll post up actual pictures when I get home, I'm back on my iPhone.
You haven't been here long, which is fine, but trust me when I say that there's something draining the battery. A G2 with a 3000mAh battery lasted over 9 hours consistently with data on, the S6A should have no problem matching that.
Sent from my iPhone using Tapatalk

Hello I have recently purchased an used S6 active gsm unlockrd with android 5.1. This is my first day with it I still don't know about the battery stats anyway I would like to know if I will get improvement in marshmallow. What are the advantages. Also since at the s6 and s6 edge the marshmallow update improved the camera speed. I would like to know if it will improve also the camera speed. Thanks
Enviado desde mi SAMSUNG-SM-G890A mediante Tapatalk

theking_13 said:
Yes, this is due to less CPU usage and videos/movies are not almost entirely white.
I looped a couple of YouTube movies and left the S6 Active running all night at 50% battery life with only wifi on. I woke up, 8 or so hours of SOT, and the battery has 59% left. This leads me to believe it's a system app, more than likely a Samsung one, since all of my other Android phones don't have this issue.
.
You haven't been here long, which is fine, but trust me when I say that there's something draining the battery. A G2 with a 3000mAh battery lasted over 9 hours consistently with data on, the S6A should have no problem matching that.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
Hmmm, maybe i'm just considering real world use instead of ideal conditions. Kinda like how i'm supposed to get 35 mpg in my car, but actually only get about 26-27.
When i was on 5.1.1 and had insane battery drainage, all of my research and testing said it was kernel related. I just stuck it out and waited for marshmallow, and now my battery is back to acceptable to me.
Keep us updated if you figure it out, even though i'm relatively happy with my battery life, i'm always happy to get more.
P.S. I've actually been here longer than you, so i'm not sure if that was directed at me. You are way more active and most likely way more software savvy than i am, but i've been here a long time.

..

captaingowa said:
That's really impressive.
Click to expand...
Click to collapse
Yeah he gained 9% battery by leaving his phone on all night, lol. I kid, maybe i'm just reading it wrong.
"left running all night at 50% battery life....... I woke up, and the battery has 59% left"

Not getting this "awesome" battery life??
I meant brightness, too many ideas at once haha. I'm posting actual pictures in a second, and will keep the phone running while I'm at work.
It has to do with a Samsung "feature", I've turned off most of them from settings. Next will be disabling packages.
It sucks that we don't have root, it seems like an AOSP Rom would net us the battery life that we should get.
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