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The battery on my Evo has been plummeting recently. A while ago I could make 36 hours easy, and now I am lucky to get 12. The reason it seems is cell standby/phone idle, according to battery info. Over the course of last night I went from 85% to 28% while I just slept, and according to battery info these two things are responsible for that.
I'm not sure what they are or how to decrease, however. I read that NV and PRI 1.90 was causing problems for a lot of people so I tried downgrading to 1.77 as suggested, but I have no idea where to find the information to see if I successfully downgraded. I am running CM7 nightly build 23, I have wiped battery stats once and I am currently waiting for the phone to die before charging it again, but this has been going on for quite a few days over numerous roms and battery wipes. If I put my phone into airplane mode, the battery is hardly touched overnight. During the day I need my phone on however and the battery drains just as fast, whether I am using it or not.
Any suggestions?
ps. under accounts and sync the only thing I have set to sync is email by push, I receive only a few emails a day and a couple at night so I don't think that would be the problem. Facebook is also set to sync contacts, but only find status updates and the like when I refresh manually. Twitter, and my google account in there but both of those are set to sync manually.
Have you checked your partial wake lock in spare parts?
teh roxxorz said:
Have you checked your partial wake lock in spare parts?
Click to expand...
Click to collapse
I have never used spare parts in my life so bear with me; but when opening it now all I see is device info including battery history, battery info and usage stats, and general options which all have to do with animations, font size, haptic feedback, or compatability mode. I don't see anything that talks about wake lock in here
You click battery history, then on the first tab, click partial wake lock, and on the second, you can click since last boot.
teh roxxorz said:
You click battery history, then on the first tab, click partial wake lock, and on the second, you can click since last boot.
Click to expand...
Click to collapse
thanks! under partial wake usage since last boot, it's hardly nothing.
Android system is by far the winner with almost 11 minutes of usage, email is next at just under 2 minutes, facebook at about 1.5 minutes, and a couple other things (dialer, sms, google voice, google services) all coming in between 5 and 30 seconds.
Hmm...are you in a bad signal area or leave your radios [3G,wifi, 4G] on all the time?
I suppose I have 3g on. I never leave wifi or 4g on and my signal is between -85 and-96, according to battery info my time without signal is 0%
Well you should turn your 3G off when not using it, that'll definitely save your battery.
I will try that in the future, but it still does not explain why I am getting 1/3 the battery life I used to while doing much more to conserve battery. Could it have to do with my pri and prl and such? Maybe I need to update profile and such, like it's not looking for the right towers? I don't know much of anything about how polling and service works.
What's your wake time vs. your up time?
It sounds like you have something staying awake.
Have you gone to menu>setting>About Phone>software information to see if your PRI version & NV have been downgraded?
What kernel are you using?
Are you using RA or Clockmod for recovery?
countryfried said:
What's your wake time vs. your up time?
It sounds like you have something staying awake.
Have you gone to menu>setting>About Phone>software information to see if your PRI version & NV have been downgraded?
What kernel are you using?
Are you using RA or Clockmod for recovery?
Click to expand...
Click to collapse
I'm not sure how to check wake time vs up time, but it would likely be useless right now, as I nandroid backup, flashed a sense rom, updated my prl and profile, checked to make sure i did downgrade pri/nv and then went back to cm7, so any battery info it is going to give me right now will be inaccurate while I wait for it to charge/discharge again over the course of the night. It does still have my previous information though since it was a nandroid backup and I've had it plugged in entirely since then.
I did succesfully downgrade to 1.77 PRI
kernel is savagedzen 0.2.1 cfs havs wimax GB (2.6.37.4)
RA for recovery.
I also uninstalled a few programs including facebook and twitter in case there was anything like that interfering with my services. I still use Go contacts and Go sms however, but I have unchecked any options with them to have facebook integration. If you could tell me how to check up/wake I can check that tomorrow morning when I wake up to see and go against whatever I had. Currently I'm just trying a few things out before tonight to see if anything had helped. An idle phone sitting on my window sill for 8 hours should not drain the battery THAT much, so something is off.
Go back into men>settings>about phone>battery (you can check it now)
If your up time and awake time are the same, you have a program that's stuck in wake. I also use a program called "system panel" that will show me live time which programs are using the most resources. OR you can use "Battery Monitor".
If you have wifi at home I would suggest you set up your phone to connect to wifi and shut your 3g off. I use a program called "Y5-battery saver". It automatically connects me to wifi at home and disconnects and switches to 3g when I'm away from the house.
attached is a screen grab of the graph from battery info
if needed:
cell standby says time on 15h 44m 47s (same as time listed on battery)
phone idle says 14h 46m 58s
(these 2 items used 47% and 44% respectively
thanks for the wifi tip, i used it on sense a lot but with most aosp roms it causes problems unless you set it to never sleep, and i didnt know what that affect it had on battery so i usually just turned it on when necessary or when in a low-signal area like school.
That doesn't seem that bad for ~14hrs on battery.
my problem is that it's while I'm sleeping. I used to get 36 hours of battery before getting to 15% and being told to plug in, and now I used it a little last night, went to bed and woke up to it being at 28% and was told soon after to plug it in. I just dont remember sleeping destroying battery life like that in the past. granted 15 hours isnt that bad, but when 10 of the 15 hours the phone is just sitting there it worries me because if I were to go through a normal day, where I charge it at night and use it during the day, there is just about 0% chance that I'll be able to make it through the day without plugging it in sometime in the middle.
teh roxxorz said:
That doesn't seem that bad for ~14hrs on battery.
Click to expand...
Click to collapse
yeah, that's not bad. You're still at 87%? LOL. Maybe I need to switch to AOSP ROM!
I'm Back to 87%, I've been on the charger all day, hence the battery graph raise. the dramatic raise was from when I flashed the sense rom to update my profile/prl. (obviously it wasn't monitoring during that time and when i came back and started monitoring again the battery was much higher)
it actually died after ~15 hours, with 10 of those 15 hours having doing nothing. I got systempanel to see if it gives me any more info and the main reason i use aosp is because of the terrific backlight handling. I like it to be super dim while inside and bright outside, and find on sense roms the auto backlight is too bright under normal conditions. I should be getting much better battery life than this. I'll try again tonight with the battery being monitored to see whats up and I'll try going into airplane mode tomorrow to see what that does at night for comparisons sake. hopefully there is just some program using lots of data that I don't know about. i'd love a quick fix lol
It's almost as if there's an Evo "battery curse"!!!!!! It has been HELL finding a ROM that I love that has great battery life. I really liked Myn's but for some reason I could NEVER find a kernel that would give me great battery life. I'm currently using ultrablakk 3 by King's and love the interface, just trying to find the right kernel myself. I think I'll do a nand and try an AOSP for a change. Vaelpak looks stable. Good luck with the battery life issues!
I'm using an unrevoked-rooted evo and at 10% wake time, it lasts for about 15 hours unplugged. That is why I usually keep it plugged in whenever possible. I have task killer and do not synch anything except for weather and news. I do have 3G running all the time as well. I wouldn't do that if it weren't for the email checks (4 accounts checking every 30 min). If the 3G could be automated to turn on during the checks, that would save more battery life, but I don't know of anything to do that yet.
I'm trying to figure out exactly what's going on. I started having trouble with awful battery life on my Epic running stock EC05. I uninstalled a few things and tweaked some settings, but the reality was that I dropped from about 15 hours use to 8 hours use on a full charge. So I rooted and flashed a couple ROMs. I settled on Syndicate and things were trucking along nicely with normal (or better) battery life. Then it happened again. Down to about 8 hours of life for a full charge.
The only thing that is in common between the two is I downloaded and installed a weather widget just before things went to pot. On stock it was the WeatherBug widget and most recently Fancy Widget. I tried switching the updating to only once a day and only on WiFi, but it still chewed through the battery. So far, having removed Fancy Widget from my home screen looks to have solved the battery drain, but widgets aren't supposed to do that. I grabbed Spare Parts and looked at what was going on and found that my phone was spending the majority of its time awake or partially awake, even when I wasn't using it.
So, has anyone else experienced excessive battery drain after installing a weather widget? Do you use a custom launcher? Am I missing something else?
I have recently had this same problem. Thought I messed up soemthing with the install so I'm getting so good at wiping and reinstalling everything I did it again.
Didn't fix the problem. I was like WTF!!! So using Spare parts it was telling me my phone wasn't sleeping, but partial wake looked fine.
So I did the airplane toggle and that seemed to fix it. I did recently install beautfiul widgets. not sure it is related.
Let me preface this by saying I'm not complaning about battery life as 36h is very good. That said, I feel like my phone is awake much longer that it should be. Anyone have any ideas why my Awake time is so much higher than my Screen-on time?
Once again, I'm not complaining but considering my phone was awake almost 5x longer than the screen was on, I feel like I could squeeze some more life out of the phone. I had 1 exchange account @ 15min, 1 gmail on push, no talk/g+, ~2-3 hours off wifi (4g), gps on, bluetooth off, 4.0.4, leanKernel.
When analyzing the wakelocks, I don't see anything that would explain almost 6 hours of extra awake time:
Considering most of this charge I was on wifi, I think I should have been able to achieve more than 1.5h screen-on time. Especially when I see people getting 4-5+ hours on theirs. What could be causing this seemingly excess awake time?
Since those screen shots, I've done another full cycle and here are my results. Same settings as before. It looks as if I did a bit better with the ratio of awake vs screen on, but I still only got ~20 hours. I'll admit, this had much more 4g time and heavier usage.
As you can see it's better, as it was only awake about 3x as much as the screen. You can see where I was at home in the second screenshot (The long bar of wi-fi) and that included me sleeping yet it shows that the phone was consistantly waking up overnight without any usage. Short of "email", I'm not sure what could be causing it. I got MAYBE 3 e-mails overnight.
Signed out of talk/g+/latitude
Location services was NOT disabled in either set of screenshots. Disabled it and charging now. Maybe that will help?
Have you checked out your wakelocks using BetterBatteryStats (found here on XDA)? Also, download CPU Spy from the market and check how long your phone is in what state. If it isn't in deep sleep too often, you might have an app or service keeping your phone awake. Background Data of any kind usually does that. Also, the first culprit I would investigate is Google Maps. Uninstall that bad boy and test your phone out. I am betting you that 60% of the time, the problem with your phone being awake too often is with Maps running unnecessarily in the background. And to be clear, Maps self-restarts itself even after logging out of Latitude and closing the app completely
armanatz said:
Have you checked out your wakelocks using BetterBatteryStats (found here on XDA)? Also, download CPU Spy from the market and check how long your phone is in what state. If it isn't in deep sleep too often, you might have an app or service keeping your phone awake. Background Data of any kind usually does that. Also, the first culprit I would investigate is Google Maps. Uninstall that bad boy and test your phone out. I am betting you that 60% of the time, the problem with your phone being awake too often is with Maps running unnecessarily in the background. And to be clear, Maps self-restarts itself even after logging out of Latitude and closing the app completely
Click to expand...
Click to collapse
I have attached all the wakelocks to the previous two posts. I didn't attach CPU spy but I did check it every time. Usually it's between 60-80% but most often it's >70% in deep sleep.
Just did a fresh wipe with a app restore using the market. Location services have been disabled. I have uninstalled all gMaps updates and disabled the app. Is this good enough? Should I convert to user and uninstall using TB?
Just wanted to chime in and say I'm seeing a very similar profile to what you posted. And I'm not entirely sure, but I think this started when I flashed this ROM. What I feel like I'm seeing is that active use of the phone seems to be more of a drain than it used to, but I'm not sure how much of that would be placebo (i.e. remembering when I first got the phone around the holidays and there were a lot of relaxed days at home with constant wifi).
But right now I'm seeing 5.5 hours of awake time and 1 hour of screen on time, with 27% remaining. Total time is 42 hours, which seems to round everything out to a decent battery life, but again, 1 hour of use for 70% of the battery seems lower than what I remember. Not sure if a vote for seeing the same behavior is one for this being normal or us both having the problem, but I can try to post screenshots/more detailed info later if it would help.
This is on the above linked rom with stock kernel, 4.0.4 radios.
That's the same ROM I'm using and I agree, 70% usage for 1h screen time seems too much. I've seen people get over 2.5h screen on time on pure 3/4g
I'm going to see if disabling maps and location services help. Will report back.
I would be interested to see any SS you have, might help.
Sent from my Galaxy Nexus using XDA App
This is after a fresh wipe, fresh kernel install, no maps, no g+, no gTalk, no GPS, no location services, just gmail and 1 exchange @ 15 minutes
Any advice as to what's going on would be very helpful. Thanks in advance.
I also have a problem with wake-locks.
Since phone is relatively new ~2weeks its still stock 4.0.2 GSM. After some time my battery life fell and thanks to XDA i think i found the problem Google backup.
I disabled Google backup to see if i get the same awake time tomorrow.
If the problem doesn't go away, is it possible to resolve this problem without factory reset of the phone?
Here are some screenshots I made the other day, taken a bit into a charge but immediately prior the phone was down to <6%. Didn't get a capture of the kernel wakelocks but as you reported, the screen on time falls far below the wake time, and the wakelocks don't seem to come anywhere near to explaining the difference.
I just installed the 6.3.0 google maps, which claims to increase battery performance for location and latitude services. I'll try to make a comparison next time my battery is drained.
I've signed out of latitude before but generally don't redo this upon rebooting the phone. Does it sign in by default on every reboot?
Well after disabling backup thing im still getting 90% wake time from backup service so i will try to do a factory reset over weekend and hope it goes away... Will post resoults in case some 1 else gets this problem.
JoeSyr said:
Here are some screenshots I made the other day, taken a bit into a charge but immediately prior the phone was down to <6%. Didn't get a capture of the kernel wakelocks but as you reported, the screen on time falls far below the wake time, and the wakelocks don't seem to come anywhere near to explaining the difference.
I just installed the 6.3.0 google maps, which claims to increase battery performance for location and latitude services. I'll try to make a comparison next time my battery is drained.
I've signed out of latitude before but generally don't redo this upon rebooting the phone. Does it sign in by default on every reboot?
Click to expand...
Click to collapse
This looks to me like some sort of Maps issue. Try to uninstall/disable maps and see if it goes away. Looks like it's stuck trying to locate you with maps somehow based on those wakelock names.
Catoss said:
Well after disabling backup thing im still getting 90% wake time from backup service so i will try to do a factory reset over weekend and hope it goes away... Will post resoults in case some 1 else gets this problem.
Click to expand...
Click to collapse
Hopefully the factory reset will fix it, that is an odd problem.
It seems to me like my problem was the version of leankernel I was using. I went from 10.0exp2 to 2.01exp2 and it's much much better
Actually, the kernel upgrade did not fix my problem. I did seem to figure out what was happening though.
This entire time I've noticed that my phone would standby and sleep very well on Wi-Fi but when I switched to data it seemed as if I would bleed juice. I discovered that my "Keep Wi-Fi on during sleep" was set to "always" and I believe that was causing my excess wakes.
I've changed it to "Never" and I'm doing some tests. I'll be sure to report back if anyone is watching this thread.
Timdor said:
Actually, the kernel upgrade did not fix my problem. I did seem to figure out what was happening though.
This entire time I've noticed that my phone would standby and sleep very well on Wi-Fi but when I switched to data it seemed as if I would bleed juice. I discovered that my "Keep Wi-Fi on during sleep" was set to "always" and I believe that was causing my excess wakes.
I've changed it to "Never" and I'm doing some tests. I'll be sure to report back if anyone is watching this thread.
Click to expand...
Click to collapse
mine is opposite of that, i standby fine on data but terribly on wifi. im guessing that is background syncing. i just have to figure out what is doing it
i have my wifi set to never too for better battery life. It seems counter intuitive, but wifi is better on power than 3g/4g. So preventing the phone from leaving wifi back to cellular is better for battery. All my phones have been like this.
yeah thats what i thought it does but mine drains faster on wifi...i leave it on cause i barely get signal in my room an if i sit on 3g it just takes a long time to do anything
What type of drain do you get over 3g vs wifi?
Yesterday I was playing around on 3g all day and I was seeing an average of 6%/hr. My phone is consistantly awake 20-25% of the time according to betterbatterstats. Screen on will always be far less than half of my awake time. Wifi drains around 1%/hr
I did a wipe of my 4.0.4 install and flashed a fresh kernel download. I'm not logging into exchange because, for some reason, I think that's my problem.
Also, changing to Never didn't really fix my issue.
Hey everybody,
Just made the jump from the iPhone 4S and have done the custom ROM/kernel thing the past week. Things were good at the start but I feel them slowly deteriorating.
I find my battery life during sleep has become much worse than before. I mean, it still kills the 4S which would see ~25% overnight. But I'm seeing 10% overnight right now, and was ~2% earlier in the week. I normally have my phone on the charger at night, but didn't last night and I'm kinda glad I got to see this. Makes me realize why I was likely chewing through more in the day too.
You can see what I'm running below in my signature. Last night I had 5 instances where the phone woke on its own. Likely due to emails coming in.
Am I expecting too much from my modifications? Am I doing something wrong? I'm ready to toss AOKP aside because of other issues anyway, but yesterday I also read it was known to have some excessive battery drain as well. Without turning this into a battle to defend the ROM you use (like half the threads in here), if you have other suggestions, feel free to throw in a ROM suggestion. I'll attach some pictures of my battery screen so anyone willing to give me a hand can help.
Thanks in advance.
I had this problem when I was running franco too. Switched to leankernel and never looked back. I get about 4-6% drain overnight as long as I dont do something stupid like leave something running by exiting with home instead of the back button. I also have wifi on 24/7 and gps off unless im nav'in. No BT
Screwedupsmitty said:
I had this problem when I was running franco too. Switched to leankernel and never looked back. I get about 4-6% drain overnight as long as I dont do something stupid like leave something running by exiting with home instead of the back button. I also have wifi on 24/7 and gps off unless im nav'in. No BT
Click to expand...
Click to collapse
I'm hesistant to blame the kernel. I was using franco prior to AOKP without issue. I didn't make that clear in the OP. I went 4.0.4 Stock -> Stock + franco -> AOKP b31 + franco. Things were good the first two steps and I'd like to think the first few days on AOKP.
Perhaps I have some background processes chewing battery - but there's nothing with a higher battery drain than Chrome beta with 2%. My phone idle and Cell standby had huge drain though. Could a weaker than normal signal cause this? Could my radio be the culprit?
Steps to best diagnose idle battery drain.
-Install CPU Spy and Better Battery Stats.
-Charge phone to full and let it run for several hours undisturbed (easiest to charge before bed, then unplug it when you know it won't be used till morning).
-Take quick note of your % loss per hour. Around 1%, you're golden. 1-2 is pretty normal. >3 and you've got issues.
-Launch CPU Spy. Most of the time should be deep sleep (we're talking about 95%). If your phone has been awake a lot, there's either an app that refuses to let your phone rest, or an OS/Kernel issue. If it's not extreme but noticeable, you likely just need to reign in settings on some apps to keep them from syncing so often or working in the background.
-Launch Better Battery Stats. Select Partial Wakelocks from the menu. These are all cases of apps waking the phone up, sorted by length. Go look at problem apps' settings/consider uninstalling if you don't need them. Kernel wakelocks should be low too.
Keep in mind that the goal here isn't really to get all these things to zero so do not obsess over small showings. Facebook with push notifications but updates set to never keeps my phone awake for about a minute or two every night, for instance. So does Handcent SMS. If you flash a rom and your phone needs to do a lot of syncing it's likely to show up in this kind of test as well. But for a night with nothing going on, nothing should be keeping your phone up for more than a few minutes total.
myrdog said:
I'm hesistant to blame the kernel. I was using franco prior to AOKP without issue. I didn't make that clear in the OP. I went 4.0.4 Stock -> Stock + franco -> AOKP b31 + franco. Things were good the first two steps and I'd like to think the first few days on AOKP.
Perhaps I have some background processes chewing battery - but there's nothing with a higher battery drain than Chrome beta with 2%. My phone idle and Cell standby had huge drain though. Could a weaker than normal signal cause this? Could my radio be the culprit?
Click to expand...
Click to collapse
Weaker than normal signal can kill a phone battery, when I'm in lecture out in the bumfuck nowhere school I go to, I get -100 to -120dbm, which kills my battery while i'm at school. If thats your situation not much to do besides hope radios may increase your signal, but if not then your basicly as SOL as i am and may have to just charge it
JoeSyr said:
Steps to best diagnose idle battery drain.
-Install CPU Spy and Better Battery Stats.
-Charge phone to full and let it run for several hours undisturbed (easiest to charge before bed, then unplug it when you know it won't be used till morning).
-Take quick note of your % loss per hour. Around 1%, you're golden. 1-2 is pretty normal. >3 and you've got issues.
-Launch CPU Spy. Most of the time should be deep sleep (we're talking about 95%). If your phone has been awake a lot, there's either an app that refuses to let your phone rest, or an OS/Kernel issue. If it's not extreme but noticeable, you likely just need to reign in settings on some apps to keep them from syncing so often or working in the background.
-Launch Better Battery Stats. Select Partial Wakelocks from the menu. These are all cases of apps waking the phone up, sorted by length. Go look at problem apps' settings/consider uninstalling if you don't need them. Kernel wakelocks should be low too.
Keep in mind that the goal here isn't really to get all these things to zero so do not obsess over small showings. Facebook with push notifications but updates set to never keeps my phone awake for about a minute or two every night, for instance. So does Handcent SMS. If you flash a rom and your phone needs to do a lot of syncing it's likely to show up in this kind of test as well. But for a night with nothing going on, nothing should be keeping your phone up for more than a few minutes total.
Click to expand...
Click to collapse
This is what every user should use to diagnose battery problems at first.
Phone Awake for last 4 hours
I'm trying to figure out why. Media Server is using 30% of battery and phone 17% (i haven't used the phone since last charge). You can also see the phone is awake for the past few hours - since I left for work this morning. All I did was use Google Music. Not seeing running apps that would be causing this - I don't use FB or Twitter. Any and all thoughts appreciated.
Lol, google music will keep it awake.
This also adds to the mediaserver ticker.
I already swiped that away once I showed up at work, but the phone remained awake for a couple of hours after that. I did not have the same issue when I was on 4.0.4 - I wouldn't always swipe away music and there wasn't a battery issue.
bigknowz said:
I already swiped that away once I showed up at work, but the phone remained awake for a couple of hours after that. I did not have the same issue when I was on 4.0.4 - I wouldn't always swipe away music and there wasn't a battery issue.
Click to expand...
Click to collapse
Well then I'm going to need screen shots from "Better Battery Stats" or a similar app for further diagnosis.
SOMETHING kept you awake that whole time. But just saying you were awake hardly gives enough information.
P.S.
FYI: The Recent Menu in ICS doesn't really kill a task. It removes the background process...but then tells the application "hey, we just killed your process...if you're not cool with that, feel free to start back up." This way things like email will still sync your mail for you and such. You actually have to go to the app info and Force Stop the application if you don't want it continuing to run.