Hi,
i managed to get my standby drain on unrooted stock 4.2 to 0,5% (WIFI) to 0,8% (HSDPA) per hour with disabling some stuff that i dont ever need.
Market notifications
Latitude
Google apps like Currents, Play movies, Play books etc...
This is great, but sometimes after usage it still felt like the battery keeps draining as the phone is in use with the screen turned on.
What now happenend is really weird:
I did set a custom reference in BetterBatterySats and left the phone on the table for 1 hour. No unneccessary apps running in the background. But it drained 7% in this hour. As you can see in the screenshots, the device was in Deep Sleep most of the time and there are no noticeable Partial Wakelocks.
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But how the heck is it possible that i lost 7% in one hour while deep sleeping? Is there any sort of app that can tell me in this particular case what went wrong?
Any info is highly appreciated.
Best,
ras
k9 mail seems to be one of the culprits
nope. it polls 2 accounts every hour anf therefore uses cpu time of approx. 0,4%. thats even even the case in that "awesome battery life" area seen on the last screengrab. a total of 15 sec. cpu time can't hurt that much.
Gesendet von meinem Galaxy Nexus mit Tapatalk 2
This may sound silly but did you try just to restart the phone?
linh1987 said:
This may sound silly but did you try just to restart the phone?
Click to expand...
Click to collapse
im pretty sure that this would fix it.
but because this happens from time to time (though this is the first time i can document it because auf BBS) i want to know whats the cause of this. it is pretty annoying to leave a phone on the desk and to find it drained empty a few hours later. this would have happened if didn't pick it up after one hour.
I get a similar problem too. Only way to clear it is a power down and restart.
Well, first of all, can we really be sure that those 7% aren't within the battery measurement margin of error?
Considering of course stuff like temperature, sensor's reading delay and other electrical/chemical/whatever stuff the battery may go through after heavy draining like you show in the graph?
I really don't think that % stats are that accurate, but that might just be me.
Some guy disassembled his Nexus S and measured the energy drain with accurate reading devices. Maybe someone should do the same on the Galaxy Nexus. Because if one software says there's no cause of drainage and another say there was some drain, maybe one should confirm which software should we rely the most.
VuDuCuRSe said:
Well, first of all, can we really be sure that those 7% aren't within the battery measurement margin of error?
Considering of course stuff like temperature, sensor's reading delay and other electrical/chemical/whatever stuff the battery may go through after heavy draining like you show in the graph?
I really don't think that % stats are that accurate, but that might just be me.
Some guy disassembled his Nexus S and measured the energy drain with accurate reading devices. Maybe someone should do the same on the Galaxy Nexus. Because if one software says there's no cause of drainage and another say there was some drain, maybe one should confirm which software should we rely the most.
Click to expand...
Click to collapse
maybe it happens because the voltage still gets down because of heavy use before. if this is the case the drain should stop at some point and the battery should not die completely.
i will def. keep an eye on this.
Its the fundamental problem with android and our battery technology.
One of two things need to happen, Google needs to get their act together (think project butter but with battery) or the OEM's need to start providing better battery technology. Its ridiculous that over the past 3 years there have been NO significant battery technology improvements. Yes, processors are becoming more efficient and using less power, but that is only going to take us so far. **** needs to happen and Google needs to press it.
Sent from my Galaxy Nexus using xda app-developers app
I am having the same issue... Huge battery drain happens in my case at the battery range of 0%~20% and 80%~100%.
Sent from my Galaxy Nexus
I am now using the latest franco kernel v335 and I think it somehow reaolve the issue. I will monitor and report.
Sent from my Galaxy Nexus using xda app-developers app
Related
I just got my Glide a few days ago. From the specs of the phone and reviews online I was expecting the battery to last very long, but that hasn't been my experience.
My battery was going down about 10% every hour which means I would barely make it through a work day without charging it again.
I found a great app called Battery Mix that tracks battery usage and estimates how long the battery is going to last. It shows a number called P/H (percent per hour) which tells you how many percent per hour the battery is going down (or up if you're charging). You can find the app here: https://play.google.com/store/apps/details?id=jp.smapho.battery_mix
When I first installed the app I was getting about 12.5 P/H which means the phone will only last 8 hours. I then uninstalled a few apps that use battery, but that didn't help much. Somebody said their battery improved when they formatted their SD card, so I just removed the SD card from mine. Now my battery consumption is down to about 8 P/H. The best I've seen is 7 P/H. This is better but still would only get me 12 hours and I'm not running all the apps I would like to be running.
I have JuiceDefender running now on the balanced setting. I'm running the Osimood ROM with Android 2.3.5. I've removed all background network polling apps like Facebook. Android OS is using 56% of the battery followed by display at 15%, so there isn't anything else that's eating up my battery.
How is the battery life on your Glide? Could you please install this app so we can compare numbers?
Woah, 56% battery life for the Android OS?
On daily usage it barely gets above 20%. The screen takes most battery life.
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Alex2221 said:
Woah, 56% battery life for the Android OS?
On daily usage it barely gets above 20%. The screen takes most battery life.
Click to expand...
Click to collapse
Thanks for the info.
Mine has been sitting on standby most of the day so that's probably why display is so much lower on mine than yours.
The high percentage of Android OS doesn't really worry me. It doesn't mean it's using a lot of battery; it just means it's using most of whatever is being used which could be a small amount.
Mine is doing much better now. P/H is down to 4.3 which means it could last 23 hours.
I really think the problem was the SD card. I'll pick up a different one after work today and see if it works better. I need a bigger one anyway.
I also found a thread that talks about corrupt image or video files on your phone causing bad battery life. That could definitely be what I'm experiencing. Should be fun figuring out which image is causing the problem.
what about downclocikng your cpu to 800? it will help i belive.
OK just installed it. I will let you know how mine is doing in a few days. I am fully Rogers stock.
I replaced the SD card and it seems to be doing better now. There may have been images on that card contributing to the problem.
I actually had GPS, wi-fi and bluetooth on the whole time. I've turned them all off now.
I've also underclocked it to 800. Thanks, taiber2000.
It looks like for the last hour it only dropped 3 percentage points.
If you are rooted and have ClockworkMod installed, you can sometimes get better battery life by resetting your battery stats. I think there are even some apps for rooted phones that will do it, but I don't have any experience with them. I can say, however, that resetting my battery stats using CWM increased my battery life significantly.
See here for one guide on how to do it: http://www.droidforums.net/forum/bugless/111009-get-better-battery-life-reset-battery-stats.html
sjbotha your welcome.
i belive i will do the same when i'll get my phone as well. altugh i will install the OC rooted kernel for better overall performance i will still downclock via software, not need the extra sterngh for my uses and i better have longer use time then CPU power.
I get 4.9 but the other day I was getting 12. All I did was Reboot my phone and I haven't started many apps. I think when they start they stay in memory.
Sent from my SAMSUNG-SGH-I927R using Tapatalk
Mine depends on usage:
-about whole day wifi-on with 3 hours games and calls; if battery is 100% at 6am, it will be 20-30% at 10pm
-whole day HSPA+ on, 2 hours phone calls + SMS/MMS, emails etc; if battery is 100 at 6am, it will be 50-60% at 11pm or before I sleep...
in terms of P/H:
-i get 3-5 P/H when wi-fi, Auto-Sync is on.
-i get 2-4 P/H on HSPA + Auto-Sync on.
-about 1-2 P/H or sometimes a straight line on Battery Stats when Idle, no data connection and/or auto-sync is on.
in other words, the glide can handle my needs in a whole day without completely draining it's battery.
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I don't know how to read this. I'm new to rooting
With only 2hrs screen on, not really... I usually do twice that.
Sent from my SGH-T999 using xda premium
DinoSoup said:
With only 2hrs screen on, not really... I usually do twice that.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
not really what?
is the battery life good or bad?
im running cm10
track 1 said:
not really what?
is the battery life good or bad?
im running cm10
Click to expand...
Click to collapse
I'd say your battery life is pretty poor.
My battery is a little bit better. I don't have any screen shots right now, but it's usually around 3 - 3.5 hours on screen. Around 7-8 hours battery usage total.
what app keeping your phone to stay awake?? 'cause that one hella awake phone.
x1tyme said:
what app keeping your phone to stay awake?? 'cause that one hella awake phone.
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Click to collapse
i dont know....i dont use a lot of apps. i use my phone quite a lot during the day though.
track 1 said:
i dont know....i dont use a lot of apps. i use my phone quite a lot during the day though.
Click to expand...
Click to collapse
Try downloading Gsam or watchdog from the playstore. Watchdog will tell you if there's a rogue app draining your battery and Gsam will tell you what's taking up the most power.
let your phone do a 3-4 recharge discharge cycles..then it would stabilize.
zeushvk said:
let your phone do a 3-4 recharge discharge cycles..then it would stabilize.
Click to expand...
Click to collapse
what is a recharge discharge?
charge it to 100% then let it discharge(1 cycle of rechrge of discharge) although there maybe a better word to represent that(noob in complex english )..
track 1 said:
i dont know....i dont use a lot of apps. i use my phone quite a lot during the day though.
Click to expand...
Click to collapse
With 2 hours screen on time over an 8 hour period and your steady curve on that graph, I would say you have some app, or some service eating CPU cycles constantly (these are called wake locks)...
Do this:
Download an app called CPU spy
Charge your device all the way
Pull it off charger
Open CPU spy
Then just hit the back button to close it.
Let your device sit for about a half hour. Don't touch it as much as possible. Leave the screen off.
Open CPU spy... post a picture of what your CPU stats say according to that app. Majority of your times should be in deep sleep mode.
Also, your battery shouldn't drain anymore than 1 to 1.5% each hour at idle. Unless you live in an area where there is poor reception (scanning for signal chews it up as well).
EDIT** ALSO...is your screen brightness on auto or is it manually adjusted a little brighter? If it on auto, then your battery life according to those graphs is absolutely awful. I have mine set pretty bright and I still see about 3 hours of screen on time
Give it a few hours of "normal" use and then come back here with a Betterbatterystats screen shot with Partial Wakelocks/Since Unplugged and Processes/Since Unplugged. That way we can see what is eating your battery. With only 4% gone, we can't see anything (too small of a window). Make sure you don't plug it in and use normally.
I have seen your other posts and I am wondering what it is that you really want out of your battery. If you think that you can get 3-4 days out of a charge, that is not going to happen. 1.5-2 days is a reasonable expectation and I think that you can get that, but you have to look at your usage habits. No kernel is going to fix that. No ROM is either.
If you are polling notifications (Facebook, G+. Twitter) or Google Locations (Maps, some app that requires location) or believe it or not using the XDA/Tapatalk app a bunch, then those will drain your battery quite fast. I use the Tapatalk app quite a bit and that and Google Now are my #1/2 battery drainers. Could I get rid of Google Now? Sure. It is more of a novelty at this point. I still get 1 -2 days of charge on my phone wihtout worrying about where a plug is.
Like I said, come back at the end of the day or tomorrow morning and post the Partial Wakelocks/Since Unplugged and Processes/Since Unplugged and we'll see what is draining your battery.
Another thing to note is that it seems your mobile network is typically pretty patchy. This can really drain your battery too.
I've been chasing wakelocks since I got my device and think I'm at a pretty good place. I get 2.5-3hrs of screen on time (about 20% screen brightness) across about 25hrs of standby time. Does anyone else get a lot of mmc1_detect and mmc0_detect wakelocks?
thanks woodrube. I will post my stats at the end of the day. I don't have a facebook or google + or any app that have notifications or updates by itself. I have the screen set to 20% brightness
how do I delete that dmux wake lock?
Hey guys, I have a little bit of a question for ya.
Now my phone's battery life has been awful lately. Certainly not what it was when I first got the phone. I'm lucky if I can get 6 hours mostly on stand by.
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Theres what my battery usage is looking like right now, as you can see, its a steady decrease for the most part, but not a steady amount of use on my end.
I use Advanced Task Killer religiously, and even have it set to autokill. The weird thing is, my phone will get insanely hot sometimes while I'm not using it, I'll check ATK, nothing out of the ordinary, check running apps, nothing out of the ordinary, and if there is always kill it.
Right now I am running a CM10 nightly that is a few months old. Do you guys think that could be the case? I'm really not sure what else to do.
Any help would be greatly appreciated!
I see so much awake thhere, check if you have rogue app, use better battery stats or gsam battery
Sent from my Galaxy Nexus using Tapatalk 2
Yes, as aimcr7 says, it must be an app that doesn't let your phone to "go bed"
As you can see in my attachment, this is how it should look like with ~30 apps installed approx.
EDIT: For some reason (maybe i'm too noob), the forum doesn't let me to attach pics, so here it is.
http://img24.imageshack.us/img24/2926/screenshot2013011600252.png
Get rid of the task killer. They are useless and actually make your battery work harder. I'm not sure, but it looks like you don't have a solid, steady mobile signal. It looks like it goes in and out. That kills battery life.
Thanks for the replies. I got rid of ATK. I had a slight feeling it could be that because its on 24/7 monitoring apps, but I guess I just didn't wanna believe it lol. I got GSAM battery and I'm gonna run that for a few hours, see what's going on, but hopefully things will be all fixed. Thanks for the help!
Today i got 2:20h of battery life playing ingress xD sooooo bad
Sent from my Galaxy Nexus using xda premium
#1 problem: Verizon GNex, the battery life is dreadful. Screen on time is lucky to be half the GSM version.
#2 problem: Verizon GNex. There's a factory flaw in many of them that leads to the phone getting extremely hot at the top and having atrocious battery life. Only permanent solution is sending it to Samsung to get it fixed. The temp solution that's worked for me is draining the battery dead and recharging it with the phone off. Don't know why it's worked but it keeps the heat away for about a month or two for me.
#3 problem: (you guessed it) Verizon GNex. In areas with weak or no LTE the radio will endlessly consume. Try turning the radio to CDMA only and see if you get better life. Just pop it back on to LTE when you're using it.
Yeah... these are just a couple of the reasons why there is no Verizon Nexus 4...
z.coniglietti said:
Today i got 2:20h of battery life playing ingress xD sooooo bad
Sent from my Galaxy Nexus using xda premium
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Click to collapse
Well, Ingress is one of the most demanding battery game of all times, lol. I went from 95% to 75% in 45 minutes or so. I think it's normal, since Ingress is constantly using 3g, GPS and screen.
BretonGirl said:
Get rid of the task killer. They are useless and actually make your battery work harder. I'm not sure, but it looks like you don't have a solid, steady mobile signal. It looks like it goes in and out. That kills battery life.
Click to expand...
Click to collapse
I agree with this. Task killers are really not necessary in Android. Android manages applications in RAM just fine and by removing them from run you are making your system even slower in loading them to the primary memory and thus can lead to a decrease in battery life.
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TheSavageSquid said:
Hey guys, I have a little bit of a question for ya.
Now my phone's battery life has been awful lately. Certainly not what it was when I first got the phone. I'm lucky if I can get 6 hours mostly on stand by.
Theres what my battery usage is looking like right now, as you can see, its a steady decrease for the most part, but not a steady amount of use on my end.
I use Advanced Task Killer religiously, and even have it set to autokill. The weird thing is, my phone will get insanely hot sometimes while I'm not using it, I'll check ATK, nothing out of the ordinary, check running apps, nothing out of the ordinary, and if there is always kill it.
Right now I am running a CM10 nightly that is a few months old. Do you guys think that could be the case? I'm really not sure what else to do.
Any help would be greatly appreciated![/QUOTE]
That's really not all that bad. I'll trade ya. Here's mine on Wi-Fi and not even using the radio:
[IMG]http://i166.photobucket.com/albums/u96/tallyforeman/Screenshot_2013-01-06-10-30-39-1.png
Click to expand...
Click to collapse
I saw a post about this, but I can not find it now.
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The android system % is really high. For reference the screen time is at 2h 58min in that shot.
The post I saw about it mentioned a patch that fixed that in some phones? Just curious if there is something I can do to fix it and improve the battery life further.
This is on jedi xp9 with saber kernel.
What were you doing with the phone in that one hour? If nothing serious you have a battery leak problem. 31% for one hour is just not right. I used to install a calendar widget that causes leak like crazy, even after I un installed it. Had to do a hard reset to fix it.
1hr? The battery was at 1d 11h and some change, but yeah I am prolly going to do a clean install. I'm thinking maybe my titanium backup is goofed up.
Just wasn't sure if there was a system patch that was for that, I thought I had read that somewhere.
Its just the only thing using battery. That's good. Youre getting phenomenal battery life. Trust me. When I posted my last message I didn't see a pic of your time stamp. Do math on total CPU usage of the android system. Also Google backup transport uses a good chunk. Disable that if you don't want it. (When flashing a new rom Google transports your old backup onto your device)
Anyhow here you go. Do the math and see how much battery life to CPU usage I would get verse what you got. If you are never using your phone the is and or system will eventually kill it. Using a larger percentage. It looks like you aren't even using your phone. 36 hours of battery is insane. Also note my screen was on just a little over 3 hours. (At minimal brightness always)
Sent from my GN2 using XDA app.
Spoontain said:
1hr? The battery was at 1d 11h and some change, but yeah I am prolly going to do a clean install. I'm thinking maybe my titanium backup is goofed up.
Just wasn't sure if there was a system patch that was for that, I thought I had read that somewhere.
Click to expand...
Click to collapse
Sorry my bad. But it still doesn't look right to me that your system is burning more battery than the screen.
It seems like your phone was idle for the most part of that battery time. If so, then it's normal to show more android system usage percentage than other things, since there are background processes running. If that's the case, your battery drain is good, especially if you're 4g was on the entire time.
Sent from my GT-N7105 using xda premium
AlonB. said:
It seems like your phone was idle for the most part of that battery time. If so, then it's normal to show more android system usage percentage than other things, since there are background processes running. If that's the case, your battery drain is good, especially if you're 4g was on the entire time.
Sent from my GT-N7105 using xda premium
Click to expand...
Click to collapse
Yeah I never turn the 4g off. Guess I was just miss understanding the post.
Yes the phone was idle a lot, normally is on my days off. During my work week im looking at 18-20 hours getting me to 60-40% and me charging it it before bed. Being in reinforced concrete buildings 2 stories underground causing me to the have a poor signal I figured that was pretty decent.
Anyway thank you guys for the information.
Time to replace a battery, or is something wrong here?
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Using android is like changing a new phone every month!
Better check you apps behaviour and syncs with BetterBatteryStatts and cpu spy for deep sleep. No way a battery drains that fast normaly.
Interesting thing is, I just did a full wipe/factory restore, couldn't be an issue with my apps, could it? Gonna go log my battery in the mean while
Using android is like changing a new phone every month!
Could it be due to this process "audioOut_2"?
Dont have vibes installed though, yet somehow this is preventing phone from sleeping.
Will try with second handset to see if this is an issue with rebooting phone on silent mode
Using android is like changing a new phone every month!
iamwozy said:
Time to replace a battery, or is something wrong here?
Using android is like changing a new phone every month!
Click to expand...
Click to collapse
how many screen time? have you put you phone in a hot zone? have yoy been playing while charging for a long time? i say it because it is known that some samsung batteries inflate themselves and decrease the battery life to like about 15 minutes so look if the battery is normal or a bit rounded (fat battery)
hope it helped,
bests
Sent from my GT-N7100 using xda app-developers app
aka_sirok said:
how many screen time? have you put you phone in a hot zone? have yoy been playing while charging for a long time? i say it because it is known that some samsung batteries inflate themselves and decrease the battery life to like about 15 minutes so look if the battery is normal or a bit rounded (fat battery)
hope it helped,
bests
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
Hot zone meaning? I haven't been abusing my phone, but when I play some games/surf the Web, the battery seems to die at almost twice the speed it did before.
If buying a new battery would solve this issue, then I would buy without hesitation! I'm just scared that the battery condition is not the main issue with this drain.
Currently doing a full drain/charge to recalibrate the battery
Using android is like changing a new phone every month!
iamwozy said:
Hot zone meaning? I haven't been abusing my phone, but when I play some games/surf the Web, the battery seems to die at almost twice the speed it did before.
If buying a new battery would solve this issue, then I would buy without hesitation! I'm just scared that the battery condition is not the main issue with this drain.
Currently doing a full drain/charge to recalibrate the battery
Using android is like changing a new phone every month!
Click to expand...
Click to collapse
by hot zone I mean let the phone in the sun or somewhere when the temperature is high. I recommend you to check your battery physically, I mean open the back of the phone and see if the battery is in the same condition as when you received it. As I said before the main problem could be that your battery have been inflated if is this you must replace it not only because the bad performance but also because it is really dangerous(there are acids in there and if it explote..)
However it seems more like a continous draining try calibrating as you said with battery calibration or similars. If the battery starts to decrease its life (i mean today lasts 5h., tomorrow 3h.) it is almost sure what i said about the battery.
hope i helped you somehow
Bests
Sent from my GT-N7100 using xda app-developers app