On my S3/Note 2, every time I use my phone, both Screen On and Awake will be reflected.
On Nexus 7 however, when I'm using the tablet, even though Screen On is reflected, Awake isn't. Is this a bug or a new thing on Jellybean 4.2 or simply a nexus/stock android thing? If it's a stock android thing, then what does Awake actually mean?
Tried googling but I can't find any answers..
Awake means CPU isn't at idle. Like background processes running.
Sent from my Nexus 7 using xda premium
Gizmoe said:
Awake means CPU isn't at idle. Like background processes running.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Oh so the Awake only appears strictly for background processes on the Nexus 7?
Seems different from the Note 2. Is this a stock android thing?
kEvinErd said:
Oh so the Awake only appears strictly for background processes on the Nexus 7?
Seems different from the Note 2. Is this a stock android thing?
Click to expand...
Click to collapse
I'm not too sure exactly. On my phone it was always on with screen but may have something to do with 3g radio consuming power. It does seem real low compared to my phone. Even on cyanogen on my phone it shows constant with screen on and off. Maybe since there is no radio the CPU can idle most of the time.
Sent from my Nexus 7 using xda premium
Battery on my new 32 gig sucks. 4-5 he's of use
Same here
If I helped out, hit the thanks button.
My question is not really about the battery life but on how to actually interprete the meaning of Awake on the nexus 7 as it seems different from my Samsung phone..
mrazndead said:
Battery on my new 32 gig sucks. 4-5 he's of use
Click to expand...
Click to collapse
I wonder why that is. I get at least 8 hours screen on time with stock 4.2. Right now I'm at 4 hrs 6 min screen on time with 51% battery left. Also have the 32g version.
Sent from my Nexus 7 using xda premium
---------- Post added at 12:05 AM ---------- Previous post was at 12:02 AM ----------
kEvinErd said:
My question is not really about the battery life but on how to actually interprete the meaning of Awake on the nexus 7 as it seems different from my Samsung phone..
Click to expand...
Click to collapse
I too am curious as to exactly why. I can only guess. I do know awake has to do with the phone doing tasks and pulling the cpu out of an idle state. My inspire seems to always show as awake even when the screen is off. I do notice though when I shut off mobile data on my phone, awake and screen on basically are in sync. The inspire has an old single core snapdragon though so as soon as I use my phone I'm sure the CPU is maxed out. However on the nexus, awake is only little slivers here and there even when the screen is on all the time. Maybe the tegra 3 is just that good Lol.
Sent from my Nexus 7 using xda premium
Gizmoe said:
I wonder why that is. I get at least 8 hours screen on time with stock 4.2. Right now I'm at 4 hrs 6 min screen on time with 51% battery left. Also have the 32g version.
Sent focuses Nexus 7 premium
---------- Post added at 12:05 AM -------- Previous post was at 12:02 AM ----------
I too am curious as to exactly why. I can only guess. I do know awake has to do with the phone doing tasks and pulling the cpu out of an idle state. My inspire seems to always show as awake even when the screen is off. I do notice though when I shut off mobile data on my phone, awake and screen on basically are in sync. The inspire has an old single core snapdragon though so as soon as I use my phone I'm sure the CPU is maxed out. However on the nexus, awake is only little slivers here and there even when the screen is on all the time. Maybe the tegra 3 is just that good Lol.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Haha same here on the Awake being little slivers here and there on my nexus 7.
Ideally, when the screen is off, the phone shouldn't be Awake for too long a period or too many times. It's an indication of partial wakelocks caused by some apps or processes in the background, which causes unnecessary battery drain. On my phone, comparing the Awake and Screen on allows me to quickly identify if there's any partial wakelocks. I can't do the same on nexus 7..
Hope someone can enlighten us soon on how exactly to interprete Awake on the nexus 7. Still not too sure if it's a stock android thing, a bug or a JB 4.2 thing. Haha
I, not sure why mine is like that. I am not a noon to android tablet and my Acer iconia get 10 hours battery use for a couple year old tab.
My nexus is setup with almost everything off and WiFi NFC of as well. The only thing I can think of is I did not do a factory reset after ota update to 4.2.1. I'm going to do reset after I do a full charge. If that doesn't work then I will flash a new to, and kernel
I believe the whole "awake" under battery is just a 4.2 bug. Because ever since my G'nex updated it's the same way even though it used to have solid lines in accordance with screen on. As long as both my devices continue to get normal (for me) battery life I don't worry about it. Though I do hope Google fixes it because I do find it slightly annoying.
Sent from my Galaxy Nexus using xda premium
95Z28 said:
I believe the whole "awake" under battery is just a 4.2 bug. Because ever since my G'nex updated it's the same way even though it used to have solid lines in accordance with screen on. As long as both my devices continue to get normal (for me) battery life I don't worry about it. Though I do hope Google fixes it because I do find it slightly annoying.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Thanks for confirming! Haven't been able to get anyone else's confirmation I was starting to think it's a stock android/nexus thing. Battery life wise I'm unable to compare because I got my nexus 7 with 4.2 out of the box.. No points of comparison.
kEvinErd said:
Thanks for confirming! Haven't been able to get anyone else's confirmation I was starting to think it's a stock android/nexus thing. Battery life wise I'm unable to compare because I got my nexus 7 with 4.2 out of the box.. No points of comparison.
Click to expand...
Click to collapse
I also think it is a 4.2 issue. My friend told me that his Nexus 7 suffers from poorer battery life since he flashed a 4.2 ROM, he reverted back to 4.1.x for his daily driver.
Maybe it only shows partial wakelocks called from applications (not screen)?
Silverspitz said:
I also think it is a 4.2 issue. My friend told me that his Nexus 7 suffers from poorer battery life since he flashed a 4.2 ROM, he reverted back to 4.1.x for his daily driver.
Click to expand...
Click to collapse
I don't think this is causing any extra battery drain though.. Battery drain when idle is very minimal which is a good thing..
haha123 said:
Maybe it only shows partial wakelocks called from applications (not screen)?
Click to expand...
Click to collapse
That's what I'm more inclined to thinking too. Was it like this before on 4.1 or earlier versions? This is my first nexus device so I can't tell if its a android OS version thing or nexus device thing.
Related
6 hours Battery life is the maximum i get in my rooted stock rom Nexus 7....
Sent from my Nexus 7 using xda premium
6 hours doing what? If you use it non-stop for 6 hours (screen always on) then that's probably about right.
I get about 3 days use from mine (which has about 6 hours screen on time by the end of it).
Remember as well the warmer it gets the faster the battery will drop, plus turning it on and off a lot will take a lot out the battery, leaving it to idle in standby is better than to keep turning it off all the time.
I hope this helps but I cannot be more specific without knowing exactly what your doing with yours.
Can you post more detail. Like what you do with it during that 6 hours. do you have everything on like.
Things that you should check and lower to help with battery life
1 . screen brightness (put as low as you can handle)
2. Wifi on all the time when there is NO NETWORK CONNECTION.
3. sync accounts in background (sns notifications and running apps) ROGUE.
4. GPS AND LOCATION SETTINGS (EAT BATTERY NEARLY MORE THEN ANYTHING)
5. OVER CLOCKING AND TWEAKING SYSYEM
The above is a place to start good luck
erica_renee said:
Can you post more detail. Like what you do with it during that 6 hours. do you have everything on like.
Things that you should check and lower to help with battery life
1 . screen brightness (put as low as you can handle)
2. Wifi on all the time when there is NO NETWORK CONNECTION.
3. sync accounts in background (sns notifications and running apps) ROGUE.
4. GPS AND LOCATION SETTINGS (EAT BATTERY NEARLY MORE THEN ANYTHING)
5. OVER CLOCKING AND TWEAKING SYSYEM
The above is a place to start good luck
Click to expand...
Click to collapse
Saying that I have noticed leaving the wifi and gps on makes no noticeable difference on the nexus 7 (it does on a phone). The biggest drain seems to be leaving NFC turned on all the time, turn it off and you notice a boost straight away.
Less than 6 hours of intensive use everything on is the most i get for intensive usage...
Google promised 10 hours
I want a nuclear powered nexus 7, I want to compete with Nasa, s Mars Curiosity....
Sent from my Nexus 7 using xda premium
wifi on for web use only, max brightness and bluetooth off..I can watch about 6 hours shows and play a game about hour and then turn wifi on check emails and some sites, all in all 6-8 hours depending. Never over 8 tho, but I charge it daily anyways as it seems to charge really fast.
NDUTU said:
Less than 6 hours of intensive use everything on is the most i get for intensive usage...
Google promised 10 hours
I want a nuclear powered nexus 7, I want to compete with Nasa, s Mars Curiosity....
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Quoted right from https://play.google.com/store/devices/details?id=nexus_7_8gb&feature=single-wide-banner sorry but sounds like your getting near average battery life. I feel as thou i get more then 8 hours continuous use but i never use mine for gaming and never in front of it for long periods..
----------------THIN, LIGHT AND PORTABLE
Nexus 7 is a no compromise Android tablet that’s designed to go wherever you go. With a stunning 7” display, powerful quad-core processor and up to 8 hours of battery life during active use, Nexus 7 was built to bring you the best of Google in a slim, portable package that fits perfectly in your hand.----------------------------------------------
---------- Post added at 01:03 PM ---------- Previous post was at 12:59 PM ----------
Lennyuk said:
Saying that I have noticed leaving the wifi and gps on makes no noticeable difference on the nexus 7 (it does on a phone). The biggest drain seems to be leaving NFC turned on all the time, turn it off and you notice a boost straight away.
Click to expand...
Click to collapse
Thanks for the tip i will turn nfc off as i have only set it up NEVER Used it nor am i sure i ever will.
i was actually quoting on how my a500 and android phone does.Not really used the nexus long enough to get a true feel for battery life . My use is checking email posting to forums and internet searching. once in a while i will use gps. but never long periods of use.. gps on a500 sucks the battery and does not get the greatest signal . but it still gets 8 + hours .
Trinity 7 kernel, use TKT (play store) and UC to 100/1100 and disable offline CPUs at boot. Amazing battery life
Lennyuk said:
Saying that I have noticed leaving the wifi and gps on makes no noticeable difference on the nexus 7 (it does on a phone). The biggest drain seems to be leaving NFC turned on all the time, turn it off and you notice a boost straight away.
Click to expand...
Click to collapse
Sounds like you have a fault somewher. NFC uses very little power.
Harry GT-S5830 said:
Trinity 7 kernel, use TKT (play store) and UC to 100/1100 and disable offline CPUs at boot. Amazing battery life
Click to expand...
Click to collapse
Can I install this is kernel in The Stock Rom?
Sent from my GT-I9300 using xda premium
Yes u can flash it on the stock ROM. Use the above settings and you'll find that the battery doesn't want to come down. Its the best kernel right now. Be sure to support the developer by buying the kernel app also. I got 1hr screen time for 10% battery so that gives you an idea. Also 7000 benchmark.
Sent from my Nexus 7 using xda app-developers app
This thread gave me the idea to re-download SetCPU to underclock it. However, I immediately noticed flaws. Switching between homescreens had become laggy. I uninstalled, and I'll leave it the way it is.
Dear People,
I am posting this out of big ENVY from my friend's story of his iPh*** 4 battery life with 40hrs ++ of usage (social network on, moderate usage, data always on, bla bla bla) and he still got 20% left of his battery!!!
I was just wondering did anyone managed to experience 40hrs ++ of battery lifetime? My best achievement with my nexus s battery life is
1 day 3 hrs with
MIUI Rom JB 2.8.17
Marmite Kernel 4.3
SmartassV2/deadline
100/1000
Automatic brightness on
Could we EVER achieved 40hrs ++ battery lifetime??? Since Iph*** 4 has practically same specs with Nexus S
It has 1Ghz procs, 512mb ram, 1500mah battery, bla bla bla
Any comments?
A very big advantage of the iphone is the very dim (to my opinion) screen backlight. If you change that to default 1 min instead of 20 on a custom rom, and then change your auto brightness values as well to lower ones your lifetime should increase alot. At least mine does. Also I use Llama to close mobile data after 5 minutes of sleep and then instantly turn it on on unlock. Anyway..we will never be able to win versus apple at some things. They have one operating system made for one device. We got one operating system for like..1 milion devices? That's the same story of console vs pc games.
andrei.voinea93 said:
A very big advantage of the iphone is the very dim (to my opinion) screen backlight. If you change that to default 1 min instead of 20 on a custom rom, and then change your auto brightness values as well to lower ones your lifetime should increase alot. At least mine does. Also I use Llama to close mobile data after 5 minutes of sleep and then instantly turn it on on unlock. Anyway..we will never be able to win versus apple at some things. They have one operating system made for one device. We got one operating system for like..1 milion devices? That's the same story of console vs pc games.
Click to expand...
Click to collapse
Never used iOS devices before...So they have those kind of things hey..
I agree with you with the point that their OS was made for one device, while us is for millions
Thanks for the comment
I've been getting pretty excellent battery life lately, will put up a screen shot but got almost 52hrs battery life with wifi and 3g on until it got to about 15% with about 2h 24m screen on time, although this was pretty light usage to be fair.
Using codename 3.3.2 with standard kernal, I turned NFC off and this seemed to help massively although I've also heard the new Maps app has solved some battery drain so not sure which has contributed the most.
cptblubear said:
I've been getting pretty excellent battery life lately, will put up a screen shot but got almost 52hrs battery life with wifi and 3g on until it got to about 15% with about 2h 24m screen on time, although this was pretty light usage to be fair.
Using codename 3.3.2 with standard kernal, I turned NFC off and this seemed to help massively although I've also heard the new Maps app has solved some battery drain so not sure which has contributed the most.
Click to expand...
Click to collapse
52hrs?????? Cant wait for your screenshots man!
You may think the specs are the same, but the hw in the iPhone and power management is still superior. They get a push notification, even while the 3g radio is in idle and almost off (in which it saves more power). It's hard for Android to optimize the power management specially because of that many hardware variations, it's not only the CPU that counts.
madd0g said:
You may think the specs are the same, but the hw in the iPhone and power management is still superior. They get a push notification, even while the 3g radio is in idle and almost off (in which it saves more power). It's hard for Android to optimize the power management specially because of that many hardware variations, it's not only the CPU that counts.
Click to expand...
Click to collapse
Well, thats good to know, but since its the software differences (meaning coding and stuff), surely (i assume and hope) that we could also applied it (somehow) in our devices through tweaks, can we?
IMHO not much is possible since this is older hardware already and a question for how long will Google bother with it. It might be alot of work needed and you gain some insignificant amount of savings.
Would be nice to see some kind of power management tweaks in coming version of Android though.
well its halfly because android works differently and half way because of the hardware.
yes, the hardware is similar, but the nexus screen takes up more power, the processor is not very efficient, and nfc takes up power... also, the 3g radios are honestly HORRIBLE on the nexus s and that might have something to do with it.
but, the software side does make a major impact. iPhones do not multitask like android, which saves power on slower devices like the iphone 4. thats only half of it though, for instance, the iphone 4S has much worse battery life than the nexus s (by far). ROMs make a big difference also, I am very picky when choosing a ROM- if it doesnt have great battery life then I immediately replace it by another ROM that does.
I get on average about 16-20hours pretty consistantly if you are wondering, and I am OK with that as long as it makes it to the end of the day... I wake at 3:30 and normally it does. My advice is to experiment with different ROMs, I would suggest some, but I use an S 4G...
I don't really believe it. My friend has an iPhone and he uses it quit a bit and seems to have to keep it plugged in as much as I keep my phone. I think he said he usually gets about 8 hrs out of it. And the screen is pretty dull compared to mine so that might make a difference to
Sent from my Nexus S 4G using xda app-developers app
The iPhone screen is a lot smaller too and that's a big tradeoff.
I always get a chuckle at the iHerd people I see on the bus holding their tiny screen 6 inches in front of their face so they can read it.
If battery life is really a concern get a couple of spare batteries and a charger.
Sent from my Crespo using xda premium
heccubusxda said:
The iPhone screen is a lot smaller too and that's a big tradeoff.
I always get a chuckle at the iHerd people I see on the bus holding their tiny screen 6 inches in front of their face so they can read it.
If battery life is really a concern get a couple of spare batteries and a charger.
Sent from my Crespo using xda premium
Click to expand...
Click to collapse
Or an extended battery...
Sent from my Nexus S 4G using xda app-developers app
heccubusxda said:
The iPhone screen is a lot smaller too and that's a big tradeoff.
I always get a chuckle at the iHerd people I see on the bus holding their tiny screen 6 inches in front of their face so they can read it.
If battery life is really a concern get a couple of spare batteries and a charger.
Sent from my Crespo using xda premium
Click to expand...
Click to collapse
Thats a good point too, smaller screen
Use this as yours to shut him up apples wack i got this oc to 1400 on stock with air kernel 186
Sent from my Nexus S using xda premium
nucleor1989 said:
Use this as yours to shut him up apples wack i got this oc to 1400 on stock with air kernel 186
Sent from my Nexus S using xda premium
Click to expand...
Click to collapse
Whoaaaah! What rom and settings? Awesome!
Sent from my SGH-T959V using xda app-developers app
Data was on all the time ? Ive got 33 hrs once but this is insane
I have achieved 50 hours on cna ... yes codename android but dang I forgot to take a screenshot of it I didn't have data on that time though
Sent from my Nexus S using xda premium
Lasting 40+ hours is easy if you don't use the phone much...
The screenshot was taken on a long weekend a while ago. I was busy during the weekend and didn't use my phone much apart from listening to music for no more than 2 hours.
Si_NZ said:
Lasting 40+ hours is easy if you don't use the phone much...
The screenshot was taken on a long weekend a while ago. I was busy during the weekend and didn't use my phone much apart from listening to music for no more than 2 hours.
Click to expand...
Click to collapse
Thats true, but from the iphone their data was on all the time, mid moderate usage.
But, just like some people said, power managwment chip, the os, makes big differences
Sent from my SGH-T959V using xda app-developers app
It seems like my battery won't idle after it drops under 100%. I can leave it off the charger at 100% and it won't drop. But after that it'll drop 2-3% every 2-3 hours I don't touch it. What gives? Looking at the graph there is no wake locks period. It just slants it never flat lines it seems like. WiFi is not on and it deep sleeps. But the battery drops over nothing.
Left it over night at 71% and it dropped to 68%.
Sent from my Galaxy Nexus
Wow.. bump
Sent from my Galaxy Nexus
Mine does this too, I have noticed it since the start with every kernel/ROM
I can leave it for ages or even use it for a while, and it stays at 100% but below 100% it doesn't do this
However I have noticed that this occurs more on some kernels than others. eg. Bricked which I am using now, does not last as long on 100% and goes down normally from there.
I have read people thinking their battery life is amazing at 100% but honestly I think its a bug or something in the reading
Please correct me if I'm wrong
markj338 said:
Mine does this too, I have noticed it since the start with every kernel/ROM
I can leave it for ages or even use it for a while, and it stays at 100% but below 100% it doesn't do this
However I have noticed that this occurs more on some kernels than others. eg. Bricked which I am using now, does not last as long on 100% and goes down normally from there.
I have read people thinking their battery life is amazing at 100% but honestly I think its a bug or something in the reading
Please correct me if I'm wrong
Click to expand...
Click to collapse
Its a possibility I never had this expierence before 4.1.2 got put out. I honestly think that it was a bug introduced. Or something not entirely sure. Thanks for participating.
Sent from my Galaxy Nexus
ÜBER™ said:
Its a possibility I never had this expierence before 4.1.2 got put out. I honestly think that it was a bug introduced. Or something not entirely sure. Thanks for participating.
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
Honestly, I have noticed it since the first few days I had it, on 4.1 and 4.1.1 (I got mine on release weekend)
No problem mate I am actually glad someone else has noticed it as a bug or something, not amazing battery life lol
markj338 said:
Honestly, I have noticed it since the first few days I had it, on 4.1 and 4.1.1 (I got mine on release weekend)
No problem mate I am actually glad someone else has noticed it as a bug or something, not amazing battery life lol
Click to expand...
Click to collapse
Issue is I've never had this till just recently. It'll idle perfectly after a full charge at 100% but start messing with it and it'll drop 2% every time I let it idle every 3-4 hours. Hell not even that long some times. Using betterbatterystats to see if its an app. As I see that the CPU time using States doesn't match the display time. So its awake when the screen is off and isn't showing up in the battery graph.
Sent from my Galaxy Nexus
Is it not normal for a battery to die even if a device is not being used? I don't see how it would remain the same % if its not plugged in.
Sent from my Nexus 7 using XDA Premium HD app
DirtyShroomz said:
Is it not normal for a battery to die even if a device is not being used? I don't see how it would remain the same % if its not plugged in.
Sent from my Nexus 7 using XDA Premium HD app
Click to expand...
Click to collapse
Well it would eventually. But this thing should not be loosing percentage that quick.
Sent from my Nexus 7
Hi there; this is my first post so please go easy on me.
Bought a Nexus 4 which is my first Android device, but the battery life is bugging the hell out of me. Surely the screen should always be at the top, right? I left it to sleep overnight on a full charge to find that it had shot down to 60% when I woke up at 7 this morning.
I haven't rooted or flashed or anything like that, because as I said, I'm an Android virgin. I have location settings off, only Gmail syncing and the usual push notifications here and there. Nothing too fancy or strenuous.
Any help on how I can go around fixing this? I'm a little afraid to rooting/flashing/ROMs etc, because I've no clue what works best.
Cheers!
If your saying you left the screen on over night, meaning the phone never went into deep sleep.. If you slept for let's say 6 hours and the phones screen was on for that whole time it's normal that it went down to sixty percent battery.
Maybe I'm understanding your post wrong? Btw I cannot see the picture you posted.
Sent from my SGH-T999 using xda app-developers app
Turn off mobile data and lower the screen brightness to 0 during the day. Also disable WiFi when you're sleeping. I also make sure all apps are closed using the app manager button on the far right.
Mine's been fine following this logic.
Oh sorry, I should meant sleeping overnight, whilst I slept cosily in my bed.
I'll reattach the image in a second
Ah, you won't be able to see any links till I've gone past 10 posts. Back in a bit then, ha.
atw1927 said:
Ah, you won't be able to see any links till I've gone past 10 posts. Back in a bit then, ha.
Click to expand...
Click to collapse
lol I see it now.. try performing a reset, android shouldn't be that high.. are you rooted? custom rom/kernel?
Crisisx1 said:
lol I see it now.. try performing a reset, android shouldn't be that high.. are you rooted? custom rom/kernel?
Click to expand...
Click to collapse
This is NOT the answer. His battery in the image has dropped 7%. If he hasn't used the screen much it is perfectly understandable that screen might not be a large percentage of that 7%. As he uses the phone more screen will use a larger percentage of his battery and Android OS will use less.
If he gets to the point where the screen is on for an hour or two and the percentages are still like this then yes there is a problem.
Sent from my Nexus 4 using Tapatalk 2
joshnichols189 said:
This is NOT the answer. His battery in the image has dropped 7%. If he hasn't used the screen much it is perfectly understandable that screen might not be a large percentage of that 7%. As he uses the phone more screen will use a larger percentage of his battery and Android OS will use less.
If he gets to the point where the screen is on for an hour or two and the percentages are still like this then yes there is a problem.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
My android system has never been that high, regardless if I used the phone for 10 minutes or 10 seconds , or not at all.
atw1927 said:
Hi there; this is my first post so please go easy on me.
Bought a Nexus 4 which is my first Android device, but the battery life is bugging the hell out of me. Surely the screen should always be at the top, right? I left it to sleep overnight on a full charge to find that it had shot down to 60% when I woke up at 7 this morning.
I haven't rooted or flashed or anything like that, because as I said, I'm an Android virgin. I have location settings off, only Gmail syncing and the usual push notifications here and there. Nothing too fancy or strenuous.
Any help on how I can go around fixing this? I'm a little afraid to rooting/flashing/ROMs etc, because I've no clue what works best.
Cheers!
Click to expand...
Click to collapse
Actually No the "Screen" should not always be at the top of the stat list. If you use the phone more than it idles, then yes... but if you are like me, mine says "Phone Idle: 20%" (which is on top) and "Screen" is 4th on the list with 12% (Wi-Fi and Cell standby above it) [this is my personal phone, and I mostly use my work phone. hence the high Idle & standby]
I was having an issue with my phone running out of battery, with very little usage from it. I mean very little, I might make 2 calls from it each day, and respond to an email now and then. I found that an App was preventing my Screen from going into "Deep Sleep" or even "Sleeping" possibly. So I uninstalled all apps (well I only had like 4 additional apps installed), except for 2 that I need (Google Voice & Drive). Powered off the phone, charged it fully, then powered back on. Its been running on the same charge for 24+hrs now and reads 68% battery remaining.
So check the apps you have installed, some use background data, and might be causing problems...
Crisisx1 said:
My android system has never been that high, regardless if I used the phone for 10 minutes or 10 seconds , or not at all.
Click to expand...
Click to collapse
And your phone is the definitive guide for what Android OS usage is? Maybe his phone woke up those services for a period of time longer than normal.
The answer of "lol looks wrong root and install kernel" is terrible advice when so little information is given.
Sent from my Nexus 4 using Tapatalk 2
What else would you like to know?
atw1927 said:
What else would you like to know?
Click to expand...
Click to collapse
A longer battery graph would help a lot. If yuppy want top search XDA there is a free app called better battery stats that will help you diagnose if something is running in the background eating battery or even if your phone I'd properly entering deep sleep.
Sent from my Nexus 4 using Tapatalk 2
Better Battery stats and battery screenshots here
atw1927 said:
Better Battery stats and battery screenshots here
Click to expand...
Click to collapse
See now it is much easier to see that you actually do have a problem and what it is. You have the wakelock problem as you can see from Better Battery Stats which falls under Android OS on the other screen. It also appears that you have somewhat weak signal which could cause the wakelock to drain battery even more. There's not much you can do about that wake lock, some kernels have patches for it but those have their own issues as well.
Sent from my Nexus 4 using Tapatalk 2
Could I just install any kernel on stock android and be OK with it? As I've said I've no idea what's best for me; just something nice and clean that doesn't have issues like this. I live onsite where I work so my WiFi is pretty much on all the time if that helps in anyway whatsoever
I'm gonna let it run down completely tonight and charge it, but I don't expect it to help much.
joshnichols189 said:
And your phone is the definitive guide for what Android OS usage is? Maybe his phone woke up those services for a period of time longer than normal.
The answer of "lol looks wrong root and install kernel" is terrible advice when so little information is given.
Sent from my Nexus 4 using Tapatalk 2
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Click to collapse
I never told him to install a kernel. The advice I gave is to do a reset then I asked if he was rooted or running a custom rom or kernel because that might of been the problem.
Sent from my SGH-T999 using xda app-developers app
Bump
Fully charged overnight, battery still sinking like a ship. 45 minutes and I'm already down to 94% already!
Idiot question; will installing a kernel just solve this? For now as a new guy I'd like to keep it as stock as possible before fiddling with it.
atw1927 said:
Fully charged overnight, battery still sinking like a ship. 45 minutes and I'm already down to 94% already!
Idiot question; will installing a kernel just solve this? For now as a new guy I'd like to keep it as stock as possible before fiddling with it.
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The battery on the n4 seems horrible.
I'm completely stock I just got my phone yesterday, I charged it to 100% now its at 64% battery with only 47 minutes of screen on time.
on the s3 I would be around 83% with 47 minutes of screen on time.
I'm gonna unlock the boot loader and root soon and try Franco kernel I've been reading good things about it.
Sent from my Nexus 4 using xda app-developers app
The battery life on the stock kernel isn't great because the CPU management isn't optimized well. It ramps up the CPU (frequency, number of active cores...) very easily and keeps it there long, which removes the occasional lag but sucks more battery. Flashing a more battery friendly kernel would definitely help you if that is the root of your battery issues and not a badly coded app.
Franco's kernel is a very popular one, and very battery friendly compared to stock (and that doesn't mean you lose performance). It is the one I'm currently using. Most people report of screen on times of 4 or 5 hours. With not so heavy usage and wifi (not 3g) I can also pass 5 hrs.
To install a kernel you need to unlock your boot loader and install a custom recovery. No need to root, but.. why not since you're at it
You can try different kernels with the stock ROM. You don't necessarily need a custom ROM. Just be careful to read the dev's OP and instructions, and definitely not to flash a kernel for another device.
Also another thing that reduces battery is your mobile data, if there are a lot of programs that sync on the background. You can use a program that turns off your mobile data when your screen is off and switch it back on just for a sync every xx minutes. Juice Defender is such app, though I like to use Tasker for that. If you use Tasker and are interested in that project, ask or send me a pm. It works great.
I've been noticing and reading many many posts regarding how bad or optimized our battery life is.
I had this phone little more than 24 hours now. And I feel like it hasn't fully when through the battery cycle. Thus killing my phone in less than 10 hours. This is with very light usage as well!
I've also turned off gps and wifi.
I have turned on stamina, along with various other battery saving features.
Now I am coming from galaxy s3, note 2, and iPhone 5. (my iPhone has this same issue and cleared when I've started using the phone and going through few charging cycles)
I just wanna make sure that our phone isn't plagued by the software, hence this phone is only available via t-mobile or Sony (unlocked as well).
Please post your battery life photos.
Including rooted or not.
Also post which rom / kernel you are using.
Mine: stock from t-mobile. And not rooted.
Sent from my C6606 using xda app-developers app
We already had/have a similar topic in the Q&A section, no need to open a new one.
I see a lot of wake events. Check what's keeping your phone from deepsleeping with wakelock detector.
Yup you have a lot of wake events, I had this problem too. I reseted, reflashed firmware multiple times and still experienced problems until I sent it to Sony and somehow now there is barely any awake entries at all. Only screen entries appear (blue line on screen) and no lines on awake.. I do still get *backup* wakelocks and some qcom_RX_wake lock though
Xperia Z Vanilla
Dsteppa said:
We already had/have a similar topic in the Q&A section, no need to open a new one.
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Just report this unnecessary thread. Thanks!
Just use the tips in my thread
http://forum.xda-developers.com/showthread.php?t=2382712
i get about 20+ hours of stand by and around 3-4 hours of screen using it normaly not playing games
The phone was horrible initially and on 4.1.2 then after the 4.2.2 update it has been brilliant. It lasts me just over 24hrs on normal us with screen time between 5-6hrs. I'm very pleased as by 17h00 it is normally at around 55%. So it lasts me a full active day.
Sent from my XPERIA Z using xda premium
After 4 months my Xperia Z barely lasts a day with just 1,5h of screen on time. Sony said the battery is good. Restored different firmware, tried 4.1, 4.2, CM - nothing helps. I'm very unhappy...
The media server keep draining my battery...
But when I switch my sd card to a empty one or just remove it the media server nolonger drain my battery.
So I only keep a small amont of pic and musics in my sdcard and that makes the battery can last more the one day
the battery life was improved from 4.1 to 4.2 . That being said, the battery life is still much to be desired.
yamadamaha said:
the battery life was improved from 4.1 to 4.2 . That being said, the battery life is still much to be desired.
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Tbh I was really worried about the battery life on the Z, I have had my phone nearly 24hours and I am not concerned by bad battery life so far. The battery seems very good actually, its no S4 but the S4 does have a bigger battery and uses a AMOLED screen. Iirc LCD/TFT use more battery or maybe I have got that wrong.
RCJ89 said:
Tbh I was really worried about the battery life on the Z, I have had my phone nearly 24hours and I am not concerned by bad battery life so far. The battery seems very good actually, its no S4 but the S4 does have a bigger battery and uses a AMOLED screen. Iirc LCD/TFT use more battery or maybe I have got that wrong.
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I'll assume you are not a heavy user of some sorts? The frequency of usage i mean.
I'm not sure about the screen part though but it does make sense if AMOLEDs screen uses less battery than LCD/TFT screens since they actually off the black pixels.
yamadamaha said:
I'll assume you are not a heavy user of some sorts? The frequency of usage i mean.
I'm not sure about the screen part though but it does make sense if AMOLEDs screen uses less battery than LCD/TFT screens since they actually off the black pixels.
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Well since I have charged the phone I haven't played any games on it
16hour 1 min 22secs since off charge and 58% remaining
1hr 44mins 29secs phone calls
1hr 50mins 18secs screen on
16h 1 mins 17secs cell standby
13mins 40 secs android system
7 mins 31secs media server
14hr 11mins 4 secs phone idle
1min 36secs phone
1min 42 secs walkman
7mins 7 secs android os
4 min 15secs dolphin browser
JB 4.3 Sony stock
beni8978 said:
JB 4.3 Sony stock
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No wifi /3g?
Sent from my C6603
joejoe23 said:
No wifi /3g?
Sent from my C6603
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Wifi was on 70% of that time.
Don't we already have a Thread and lots of results for Battery life here? http://forum.xda-developers.com/showthread.php?t=2185362
Stock rooted 4.3. No undervolt, no nothing, just stamina mode on. This is the best update I ever had on a phone in terms of battery life.
Sent from my C6603 using XDA Premium 4 mobile app
Forgot to add this too.
Sent from my C6603 using XDA Premium 4 mobile app