Related
Hi,
We all knew that we should not use task killer to kill apps, because when we hit the back button, the app will not active anymore ... but it will still occupy some memory (RAM).
When Android OS needs more RAM it will remove in-active apps to free some.
Related article: http://geekfor.me/faq/you-shouldnt-be-using-a-task-killer-with-android/ (GOOD READ)
We should not panic when we see a huge list of apps when we start task killer.
Ok, got it there ...
Now, I installed this app called Quick System Info (FREE):
http://www.cyrket.com/p/android/org.uguess.android.sysinfo/
Which you can use to see what kind of processes are still running or apps that are still occupying RAM. It could show you the amount of RAM and CPU resources that are being used by each app.
So, I went to the Quick System Info -> Processes, hit the "menu" button -> Preferences and set like this:
- Update Speed = Low
- Show Memory Usage [checked]
- Show CPU Usage [checked]
- Sort by = CPU Usage
- Direction = Descending
Go back and watch ...
Surprisingly, I saw "Market" app is eating 1% CPU resources once in a while ... again and again ...
Hey, I thought it (Market app) is suspended in the background? I don't have it active, I pressed the back button when I finished with it.
Why is it eating 1% CPU from now an then in the background?
Obviously, this will drain battery power for something that I don't need.
Any thought?
I am now wondering if I install other kind of process monitoring app, and see if the suspended Quick System Info is also eating CPU resources
Why should we not use task killers? I`ve used them on android for the last year otherwise like you say background tasks use resources slowing up the system.
Obviously dont close any system important apps but I`m always closing down background apps that I no longer require.
1% every now and again? I really wouldn't worry about that to be perfectly honest. The impact on battery life will be incredibly small, so much so I doubt you'd even notice if you weren't watching it like a hawk.
By far the biggest drain on battery life remains all of the wireless stuff (wifi, bluetooth and 3G internet) followed closely by the screen itself. Turn those off when not in use and the miniscule drain of suspended tasks won't be an issue.
I'm sure if Google thought suspended tasks would be an important factor in battery drain they would've designed it differently to start with.
Read this article
http://geekfor.me/faq/you-shouldnt-be-using-a-task-killer-with-android/
paulruk said:
Why should we not use task killers? I`ve used them on android for the last year otherwise like you say background tasks use resources slowing up the system.
Obviously dont close any system important apps but I`m always closing down background apps that I no longer require.
Click to expand...
Click to collapse
It does every minute or so, and so far I found only this app (Market).
I just found out this morning before went to work, so I don't have time to inspect more.
Too bad I cannot see CPU TIME (the amount of time the process took 100% of cpu resources).
Noiz said:
1% every now and again? I really wouldn't worry about that to be perfectly honest. The impact on battery life will be incredibly small, so much so I doubt you'd even notice if you weren't watching it like a hawk.
By far the biggest drain on battery life remains all of the wireless stuff (wifi, bluetooth and 3G internet) followed closely by the screen itself. Turn those off when not in use and the miniscule drain of suspended tasks won't be an issue.
I'm sure if Google thought suspended tasks would be an important factor in battery drain they would've designed it differently to start with.
Click to expand...
Click to collapse
that 1% would be it occasionally checking in with the market to see if any updates have been released for the programs you have installed, so that it can give you a notification when the update is released.
i would imagine that is what it is anyway.
and yes, 1% every so often is negligible, and if you killed just that process, i doubt you would notice any difference.
gogol said:
Surprisingly, I saw "Market" app is eating 1% CPU resources once in a while ... again and again ...
Hey, I thought it (Market app) is suspended in the background? I don't have it active, I pressed the back button when I finished with it.
Why is it eating 1% CPU from now an then in the background?
Obviously, this will drain battery power for something that I don't need.
Any thought?
Click to expand...
Click to collapse
I am not sure about this..
Have you noticed that you will get a notification if there is an update to application that is installed in your phone?
I think the marketplace doesn't have a push notification yet. So it periodically will check whether there is any update to the installed application.
Allright, that might be it ... the Market is checking for apps aupdate.
And most probably 1% is not much (I don't know how to measure this and translate it to battery life time). 1% every minute ... hmmm
1 hour of 1% cpu per minute = X % of battery life.
If we have N processes?
N = email check, weather check, friendstream check, RSS check, whatnot check
I`ll give you an example why I use a task killer.
Sometimes I use an app that goes online every few minutes and notifies me of any updates. I can 100% be certain this app even when in the background uses enough cpu to cause the phone to slowdown. Dont ask me why, maybe bad programming but this is the exact reason why I need a task killer to get rid of it.
Once its gone the phone is fine again. it happends on a few apps I own, so when I finish with them, I kill them.
I wouldnt recommend a task killer that kills everything, you just need to be selective.
That is a perfect example for using task killer
What I wrote in the first post is about using task killer to just kill apps without knowing anything.
In the past, I just select all and KILL ... Then the HTC Sense got reloaded
I was scared it could corrupt my phone ... lol.
paulruk said:
I`ll give you an example why I use a task killer.
Sometimes I use an app that goes online every few minutes and notifies me of any updates. I can 100% be certain this app even when in the background uses enough cpu to cause the phone to slowdown. Dont ask me why, maybe bad programming but this is the exact reason why I need a task killer to get rid of it.
Once its gone the phone is fine again. it happends on a few apps I own, so when I finish with them, I kill them.
I wouldnt recommend a task killer that kills everything, you just need to be selective.
Click to expand...
Click to collapse
Yes thats a bit extreme killing everything.
I`ve also used startup auditor in the past. That stops some apps loading at startup , for example footprints, never use it so I kill it before it gets a chance to load up. Have to be careful what you limit though as some tasks are used by others.
That Startup Auditor is interesting, does it work as expected?
Or you encountered some quirks or issues with it?
Yeah, I don't quite like with the way Android startup (or HTC?), for example: FM radio ... it also started automatically after reboot.
paulruk said:
Yes thats a bit extreme killing everything.
I`ve also used startup auditor in the past. That stops some apps loading at startup , for example footprints, never use it so I kill it before it gets a chance to load up. Have to be careful what you limit though as some tasks are used by others.
Click to expand...
Click to collapse
gogol said:
That Startup Auditor is interesting, does it work as expected?
Or you encountered some quirks or issues with it?
Yeah, I don't quite like with the way Android startup (or HTC?), for example: FM radio ... it also started automatically after reboot.
Click to expand...
Click to collapse
Seems to work fine, not sure what help it is though hehe, in terms of speed/memory savings. I stop the radio , bluetooth,google talk and footprints. But I also use it to start some apps automatically.
I found this list of what you can/can`t disable. You can still run them after startup, just they wont load automatically when you start the phone.
safe
Google Partner Setup
Network Location (if not using apps which need geolocation regularly. ie. Gmaps, GeoTag, etc.)
Bluetooth Share (if not using BT device)
Email (if not using email service other than Gmail)
Messaging (if using 3rd party sms app, ie. Handcent SMS. or if infrequent texter)
Calendar (if calendar is not used regularly)
Calendar Storage (if calendar is not used regularly)
Voice Dialer (if not used)
Google Talk Service (if GTalk is not used regularly)
Maps (if GMaps is not used regularly)
unsafe
Clock
Media Storage
Android System
Gmail Storage
Sync Feeds
Dialer
System Updater (not sure about this one)
My Uploads (not sure about this one)
Download Manager (not sure about this one)
I have my phone running 99.6% of the time in spare parts and it shows android system as the culprit holding a partial wakelock.
so my question is, how do i fix this? i've tried a factory reset three times, am updated to 1.21 ota and have slowly started to reintegrate apps but it always starts again and always after a different app.
i'm getting pretty frustrated anyone got any ideas?
UPDATE In my case it was network time abusing wireless location service that was causing the problem and hence the reason a factory reset didnt solve it, i switched off network time and voila!
just to clarify, no live wallpapers, and phone is in airplane mode to avoid any data usage drainig the battery.
i have got beautiful widgets homescreen small clock and pure cal widget installed at the moment but even when i uninstall them it doesnt fix it, also im running launcher pro 0.4.2 but also had the problem when i reverted to sense.
and i have read every other thread here about battery life that i could find but no-one seems to have this problemo
anyone with any advice on why my phone wont sleep?
A long shot, but go in to Mobile Settings and untick Enable always-on mobile data.
Philosoma said:
A long shot, but go in to Mobile Settings and untick Enable always-on mobile data.
Click to expand...
Click to collapse
ok cool, giving that i try now but i had been leaving it in airplane mode to try and take the vagaries of data out of the equation.
this started about a week ago and i really noticed it when i was in a 6 hour long meeting and my battery basically draines 60% even though the phone was in airplane mode
ok tried that but with my phone just factory reset, airplane mode and no apps installed other than spare parts it's showing running 94.1 % of the time and all of it is android system.
that cant be right
i have restored data, maybe i shouldnt restore data either but that just seems plain crazy
Re: Android system - partial wake lock
What exact foreground and background processes/services do you have running when this is happening, any idea?
Apps like System Panel can show you them and some useful other details. That is certainly too high.
-------------------------------------
- Sent via my HTC Desire -
th3 said:
What exact foreground and background processes/services do you have running when this is happening, any idea?
Apps like System Panel can show you them and some useful other details. That is certainly too high.
-------------------------------------
- Sent via my HTC Desire -
Click to expand...
Click to collapse
ok right now there is
com.android.syncml.service
sense
market
messages
people
rss reader
syncml provider
sys panel
touch input
updater
and then a load of inactive cached applications
do you see anything unusual there?
ok so i downloaded system app and killed all apps except excluded and sytem apps and my running usage has gone down, now thats no suprise in and of itself but now i need to see if it stays down.
i've just checked again and the percentage is still going down, so it's either an inactive app which i didnt list ( is that even possible if its inactive) or one of the items i listed above.
has anyone got any thoughts.
What do the logs say upon going to standby? (Use aLogcat to watch/save system log).
I had same problem I tried the turning off network always on to off, didn't change anything. the thing that worked for me was turning off my flickr account!? For some reason it kept my calendar awake so keeping system from sleeping, don't ask me why as I can't figure it out, though since doing this I'm now getting up to 2 days of average use from the battery. Also I've done the usual of reducing the different accounts sync timings etc.
Have you typed *#*#4636#*#* into the phone key pad to look at what is happening? This can give valuable info on what's draining the battery.
Jazd71 said:
I had same problem I tried the turning off network always on to off, didn't change anything. the thing that worked for me was turning off my flickr account!? For some reason it kept my calendar awake so keeping system from sleeping, don't ask me why as I can't figure it out, though since doing this I'm now getting up to 2 days of average use from the battery. Also I've done the usual of reducing the different accounts sync timings etc.
Have you typed *#*#4636#*#* into the phone key pad to look at what is happening? This can give valuable info on what's draining the battery.
Click to expand...
Click to collapse
I have the same problem as OP since the latest update. The *#*#4636#*#* code is not helping in this case. The partial wake lock is displayed as Android System - which doesn't tell me anything.
I read something about the Calendar issues but I am unable to stop the calendar in running processes.
How did you solve your problem?
ferus said:
I have the same problem as OP since the latest update. The *#*#4636#*#* code is not helping in this case. The partial wake lock is displayed as Android System - which doesn't tell me anything.
I read something about the Calendar issues but I am unable to stop the calendar in running processes.
How did you solve your problem?
Click to expand...
Click to collapse
Ok i seem to have had some luck since last night though i'm not sure of the exact reason.
i did as th3 said and downloaded system monitor and then killed all background active and inactive tasks and that seems to have solved the problem. I have no idea why that would be the case though and i am watching it carefully to see if it stays fixed.
i dont have a flickr account setup
djet said:
What do the logs say upon going to standby? (Use aLogcat to watch/save system log).
Click to expand...
Click to collapse
Djet, I installed alogcat and have found all references to wakelock, rather than post the entire log
D/PowerManagerService( 77): wakelock: PARTIAL_WAKE_LOCK 'NetworkLocation Check Location' activated (minState=0)
D/PowerManagerService( 77): wakelock: PARTIAL_WAKE_LOCK 'NetworkLocation Check Location' activated (minState=0)
D/PowerManagerService( 77): wakelock: PARTIAL_WAKE_LOCK 'keyguardWakeAndHandOff' activated (minState=0)
D/PowerManagerService( 77): wakelock: FULL_WAKE_LOCK 'keyguard'ACQUIRE_CAUSES_WAKEUP activated (minState=3)
there are also some entries in red like this one
E/vold ( 53): Unable to lookup media '/devices/platform/msm_sdcc.1/mmc_host/mmc0/mmc0:0001'
and a load of errors to do with global search etc but this is all pretty much gobbledegook to me, what am i looking for?
thanks
ok so based on that log i have switched of the use wireless networks to find my location (not gps i hardly ever use that anyway) and now the running % is dropping fast.
i will keep you posted as to whether it keeps coming down or not.
it is going to be an enormous bummer if i cant use wireless location, thats one of a smartphones greatest powers, why would this suddenly start happening now ( started about a week before the ota update) and continues even when i factory reset.
kinkade said:
ok so based on that log i have switched of the use wireless networks to find my location (not gps i hardly ever use that anyway) and now the running % is dropping fast.
i will keep you posted as to whether it keeps coming down or not.
it is going to be an enormous bummer if i cant use wireless location, thats one of a smartphones greatest powers, why would this suddenly start happening now ( started about a week before the ota update) and continues even when i factory reset.
Click to expand...
Click to collapse
I suppose it's not the feature itself guilty but the applications using it. I had the same issue with battery running out because of Location service wake locks. It turned out one of the Locale app plugins was abusing this service. Having it uninstalled battery run became normal.
djet said:
I suppose it's not the feature itself guilty but the applications using it. I had the same issue with battery running out because of Location service wake locks. It turned out one of the Locale app plugins was abusing this service. Having it uninstalled battery run became normal.
Click to expand...
Click to collapse
Yes i know what you mean, how did you go about diagnosing that? also i have done several factory resets and it still happens
Re: Android system - partial wake lock
There are a many app settings that drain battery and the stock setup is nothing I am fond of. Location/locale was one of them for me, calendar, network time and widget/app syncs being the others. A non-stock app causing such problems was NetCounter.
Calendar was fixed by killing it and restarting it. It's a known bug for many.
If many widgets are running sync very often, then you can imagine battery draining fast.
-------------------------------------
- Sent via my HTC Desire -
th3 said:
There are a many app settings that drain battery and the stock setup is nothing I am fond of. Location/locale was one of them for me, calendar, network time and widget/app syncs being the others. A non-stock app causing such problems was NetCounter.
Calendar was fixed by killing it and restarting it. It's a known bug for many.
If many widgets are running sync very often, then you can imagine battery draining fast.
-------------------------------------
- Sent via my HTC Desire -
Click to expand...
Click to collapse
th3 you are legend, it was network time, i switched that off and all is now well in the world. cheers dude
Good find. I had the thing off anyway, but it is good to know.
Hi,
I am having severe problems with battery life where Uptime is equal to Awake or at least very very close to it. I kill Calendar (calendar.bg process) each time after starting the phone, and still I suffer from problems. Today my battery died from 100 to 25 in 7 hours, and I removed both Flickr and killed Google Calendar Sync process again. I've noticed that too many times Google Calendar sync icon in the Google Content Provider window is turning around while there aren't any changes of Google Calendars I've made.
Is it possible and a good solution overall to turn off syncing Calendar via Google content provider and instead configure a Exchange with Google Sync?
I am not sure about calender killing but I just use juicydefender and thgat has massively improved my battery life to over double the time..... might be worth trying that....
I use JuiceDefender as well (UltimateJuice edition) but despite that my phone has died today, so far it is around 9% and I have absolutely no idea why it's dying so fast.
I think I must have some application that prohibits my phone from going into sleep mode. I turned off Flickr completely (I use PicPush to push photos online), I just removed Fring and eBuddy from my phone (I think the culpit may be eBuddy but not really sure). I use Executive Assistant although without Twitter/Facebook pulls.
My Twitter pull is 2 hours. My Facebook pull is 4 hours. I use both internal Sense Peeps and external Twitter for Android content providers because I like to have Peep tweets into my Contact List, althought I am looking for feedback if this is eating too much battery.
Anyway the major sync problem is the Calendar. IT'S TAKING AGES AND ALMOST EVERY TIME I GO TO SYNC WHEN PHONE IS SYNCING, IT'S CALENDAR THAT ROLLS ITS PROGRESS ICON TO NO END. I have no idea why HTC is doing this travesty with its phones, and absolutely no idea how to make Calendar behave on my phone.
Anyway, I ordered MUGEN 3200 MAh battery as a long-term solution. 7mm on the phone's width won't be the best thing to have but it is something I'll get used to if I want to have a phone that lives through a day even if used.
WHAT THE HELL!?
I have turned off Google Calendar sync, and configured Google Sync as Exchange for Calendar events only. Despite the fact, I've noticed the turning circle of sync progress in front of Google Calendar sync (in Google Account) even if it is unchecked. I am totally lost now, what can I do to resolve this?
My next Android may not be HTC.
Hmm - I had exactly the same problem, 'Calendar' using up most of the partial wake. However I'm not convinced it is really the Google Calendar itself causing the problem. I've still got the Agenda widget installed but switched off syncing for the 'Stock' app (as I never use it anyway) and also deleted my Flickr account from the phone - even after a few reboots that still seems to have done the trick and the Calendar partial wake is now miniscule and battery life has shot up.
Do you want to try removing your Flickr account completely and see if that helps?
I've already raised a ticket with HTC about this (and a few other issues). They weren't that helpful when I first emailed them, they've been much better since I phoned them and asked for it to be escalated to a level 2 agent. I'm now getting pretty much daily updates from their agent. They asked me to remove the Agenda widget to see if it helped but now I don't have the problem it's difficult to try these things out - I'm sure they'd be happy to work with you. After you've logged the issue then feel free to PM your email +/- ticket number and I can update my ticket to ask them to run through the troubleshooting with you too.
I have the same issue with my Desire, I don't know how the battery life can be this bad to be honest , but from what I have heard from the latest update the battery life has been really bad for a lot of people, but some others have been lucky.
I have emailed HTC, so lets see what they have to say. Looks like we may have to wait for the next software update so they can resolve this issue.
Other than that I love my Desire and am extremely happy with it
alanjrobertson said:
I've still got the Agenda widget installed but switched off syncing for the 'Stock' app (as I never use it anyway) and also deleted my Flickr account from the phone
Click to expand...
Click to collapse
Meanwhile I did this:
I did a factory reset of the phone today, and reinstalled some of the apps I really use and none of those I just kept for rare occasions. I cut down apps that have processes as well.
I turned off Internet Time as I saw online it improved battery time. I don't sync Stocks. I do sync Weather however.
I did not add Flickr account.
I use Pure Calendar that uses the standard Calendar content provider. So I cannot turn off the content provider yet. I know Agenda but its not as good as Pure Calendar. But I did add Calendar content via Exchange. I noticed Exchange sync to be much much faster than the old dragging for a minute or two Google content provider calendar sync.
My battery dies to 95 over couple minutes. I guess calibration is screwed through factory reset as well, I should have never updated with the OTA but got tempted by the Memory Management optimization.
Same here, I dony sync google calander and no flickr. My facebook and twitter are set up for 2 hours and Im using juice defender ultimate. I noticed every time I unlock my fone after the screen gone off it starts to sync even though I have set up everything including mail for 2 hours. Calendar process is used by facebook sync and twitter sync so only way to disable it is to stop your syncs but I dont wanna loose my facebook picture sync so cant do that. Hope HTC improve this in the froyo update.
I used autostarts to disable some apps from starting and its been on for 50 mins so far after full charge and im down to 97% which aint too bad but I think juice defenders night mode helps that. Before autostarts I lost 1% every 5 mins. So try that guys.
It's me again, back to report my unsuccessful phone experience today
Well, apparently factory reset and trimming down the number of apps I use did nothing to prolong my phone's life. 10:00 to 18:00, it was down to 28% and losing 1% every 10 minutes, worse when screen is on. Basically, what I figured out is that it's not some rogue app installed on my device that has been triggering this bad lifespan. I also purchased SeePU++ and was really dishearted to see 60-70% CPU when the Calendar Sync process works, and it works almost constantly no matter I've set 2-4 hours frequency to Facebook and Twitter, and I'm using Exchange for Calendars where it has two frequencies set to 2 and 4 hours peak/offpeak times.
Listening to Music isn't good as well. Using DoubleTwist android app, phone remains warm while listening. Not good. Is the phone completely awake while listening to music even if the screen is off?
I've made the following changes for tomorrow, and I'll report again:
* I turned off Wireless Network Location. Not sure whether I'd live well without it, apparently my Latitude will suffer greatly and Tasker won't be able to use its Location triggers (GPS Fix triggers kill the battery in less than 2 hours), so will other apps that use rough estimation, especially if indoors.
* I revised my UnlimitedJuice. My current profile is:
** Timeout: N/A
** Schedule: Keep APN/WIFI disabled (I removed timed schedules as I suspect it kept my device from prolonged sleep)
** Night: Keep APN/WiFi disabled 0-7am (Use it just for the silent mode, otherwise it's probably charging)
** Traffic: N/A (I used to use Traffic to keep connections alive, but decided not to due to prolonged Calendar sync)
** Peak: N/A (obviously!)
** Charger: Leave APN/WiFi enabled while charging (obviously!)
** Screen: Leave APN/WiFi enabled while screen unlocked (obviously, again!)
If anyone is familiar with UltimateJuice, please let me know whether this sounds okay?
I think a culpit was the Schedule setting, as it must have kept my device constantly out of sleep to check my email. Not that I don't want that but until I stick a Mugen 3200 MAh battery in this device, I am wary against it not sleeping well. I also turned off Traffic as Calendar Sync has the stupid tendency to restart itself despite it is not expected to based on user-set frequency. No idea how to control this, no bugfix even estimated.
I think HTC doesn't really care about the life of their phones once they sold them to us. I am also very unpleased to find out how useless those fast 1 Ghz processors are when paired with old battery tech. I am looking at HTC Wildfire and it's 30-50% better battery life with somewhat of an envy. The only company that seems to bother to do something with batteries today is Apple. I won't draw conclusions especially under affect.
I have a question to all ROM-familiar users who have gone 2.2, does JIT improve battery life (through making code run faster, maybe using less CPU resources)?
raynerape said:
It's me again, back to report my unsuccessful phone experience today
Well, apparently factory reset and trimming down the number of apps I use did nothing to prolong my phone's life. 10:00 to 18:00, it was down to 28% and losing 1% every 10 minutes, worse when screen is on. Basically, what I figured out is that it's not some rogue app installed on my device that has been triggering this bad lifespan. I also purchased SeePU++ and was really dishearted to see 60-70% CPU when the Calendar Sync process works, and it works almost constantly no matter I've set 2-4 hours frequency to Facebook and Twitter, and I'm using Exchange for Calendars where it has two frequencies set to 2 and 4 hours peak/offpeak times.
Listening to Music isn't good as well. Using DoubleTwist android app, phone remains warm while listening. Not good. Is the phone completely awake while listening to music even if the screen is off?
I've made the following changes for tomorrow, and I'll report again:
* I turned off Wireless Network Location. Not sure whether I'd live well without it, apparently my Latitude will suffer greatly and Tasker won't be able to use its Location triggers (GPS Fix triggers kill the battery in less than 2 hours), so will other apps that use rough estimation, especially if indoors.
* I revised my UnlimitedJuice. My current profile is:
** Timeout: N/A
** Schedule: Keep APN/WIFI disabled (I removed timed schedules as I suspect it kept my device from prolonged sleep)
** Night: Keep APN/WiFi disabled 0-7am (Use it just for the silent mode, otherwise it's probably charging)
** Traffic: N/A (I used to use Traffic to keep connections alive, but decided not to due to prolonged Calendar sync)
** Peak: N/A (obviously!)
** Charger: Leave APN/WiFi enabled while charging (obviously!)
** Screen: Leave APN/WiFi enabled while screen unlocked (obviously, again!)
If anyone is familiar with UltimateJuice, please let me know whether this sounds okay?
I think a culpit was the Schedule setting, as it must have kept my device constantly out of sleep to check my email. Not that I don't want that but until I stick a Mugen 3200 MAh battery in this device, I am wary against it not sleeping well. I also turned off Traffic as Calendar Sync has the stupid tendency to restart itself despite it is not expected to based on user-set frequency. No idea how to control this, no bugfix even estimated.
I think HTC doesn't really care about the life of their phones once they sold them to us. I am also very unpleased to find out how useless those fast 1 Ghz processors are when paired with old battery tech. I am looking at HTC Wildfire and it's 30-50% better battery life with somewhat of an envy. The only company that seems to bother to do something with batteries today is Apple. I won't draw conclusions especially under affect.
I have a question to all ROM-familiar users who have gone 2.2, does JIT improve battery life (through making code run faster, maybe using less CPU resources)?
Click to expand...
Click to collapse
2.2 ROMs on my Desire make my battery last even less. I lost 1% every 5 mins on any 2.2 ROM.
I get the syncing going on every time I switch screen on. no matter what I have set in the settings. I got 20% overnight between midnite and 9am while Juice Defender was on night mode.
This is very discouraging, Nekromantik. Seems like I shouldn't be as excited about the upcoming August 2.2 update, now. I don't trust HTC to resolve this problem given how every single new device is plagued (Desire/Incredible/EVO) and they do nothing about it.
raynerape said:
This is very discouraging, Nekromantik. Seems like I shouldn't be as excited about the upcoming August 2.2 update, now. I don't trust HTC to resolve this problem given how every single new device is plagued (Desire/Incredible/EVO) and they do nothing about it.
Click to expand...
Click to collapse
yeah this has made me loose faith in HTC.
Battery life should be a big factor in smartphones. I should at least expect it to last 24 hours without a charge. Which is good enough for smartphones.
Just gotta add that even though my battery life is not that good, it does show that the phone does sleep as atm in the about menu it shows that the phone been on for 3 hours and been awake for 1 hour 30 mins. Which means it is sleeping but why am I still getting bad battery life all of a sudden after reflashing from Froyo ROM? I did a full wipe including a sd card wipe before I flashed Pays ROM back on. Makes no sense to me.
I'm having a very similar problem with battery life. Android System prevents my phone from going to complete sleep but strange enough - only during night when my phone is in airplane mode.
So I decided to switch off Automatic Network Time. This helped for one night and yesterday the problem reappeared again :-(
So last night I turned off location as well services and again it seems OK for now.
During the day my battery life is OK. I guess I could keep the phone turned on during night as well (as a bypass) but this is not how a smartphone of 21st century should work.
This is a mid-day report but I think I might have finally figured it out. And it's the most ironic solution ever!
I pulled the phone off the charger in 10:00, by 11:00 I was already at 88-86% and rapidly decreasing with only minor phone call activity. Then I turned off JuiceDefender/UltimateJuice and kept using the phone for contact list adding, single profile photo shot with camera, many long calls. Now it is 14:35 and my battery is at 69% - incredibly resistant compared to what I've had by that hour with less phone activity. Also, my phone seems to sleep much longer and more often than before when I used UltimateJuice.
It appears to me now that the reason the phone has been dying on me is JuiceDefender/UltimateJuice. Apparently the latest versions destroy the battery rather than save it!! I told you it's an ironic...
I will be reporting by 19:00 with the phone's actual lifespan over the course of the day but looks like I'll have a winner today.
raynerape said:
This is a mid-day report but I think I might have finally figured it out. And it's the most ironic solution ever!
I pulled the phone off the charger in 10:00, by 11:00 I was already at 88-86% and rapidly decreasing with only minor phone call activity. Then I turned off JuiceDefender/UltimateJuice and kept using the phone for contact list adding, single profile photo shot with camera, many long calls. Now it is 14:35 and my battery is at 69% - incredibly resistant compared to what I've had by that hour with less phone activity. Also, my phone seems to sleep much longer and more often than before when I used UltimateJuice.
It appears to me now that the reason the phone has been dying on me is JuiceDefender/UltimateJuice. Apparently the latest versions destroy the battery rather than save it!! I told you it's an ironic...
I will be reporting by 19:00 with the phone's actual lifespan over the course of the day but looks like I'll have a winner today.
Click to expand...
Click to collapse
interesting.
I swear juice defender helped me during the night but I could always switch apn off during sleep. I lost 12% overnight but once I was awake I lost 6% in 45 mins while it was on standby.
It is 21:10 as I type and my battery shows 24% after moderate use day. My phone sleeps more (2 hours use for 11 hours day cycle) and it loses around 1-2% per hour when asleep.
The culpit is definitely UltimateJuice and I am at complete loss how an app meant to save battery can destroy battery.
Also, I noticed that waking my phone when UltimateJuice is not running does not trigger an annoying Calendar Sync (Sync All icon remains non-animated).
I decided to switch off mobile internet and only switch it back on when I wanted to surf/lurk on here/check mail etc. Uninstalled juicedefender but kept plotter. The amount of difference doing those things has been exponential. Before, my battery was dead in about 8 hours use. now it will last 17+. Even use it for music which I wouldn't risk when internet was always on.
For me it is the Location services and Network time that need to be switched off.
As I said I only get battery problems during night in airplane mode so I tested several settings and it seems that both Network time and Location services need to be switched off so they stop trying to update themselves.
Although I would imagine that once you switch your GSM module off that should be enough to also stop Network time and Location... Apparently my assumptions are dead wrong
I think its time to start a worldwide petition to HTC if they please could fix the problems with the battery. I cannot use my phone to call when I am not near a power source. After 15 hours the battery is down to 20% ..its so frustrating.
HTC know there are problems (perhaps the read some forums) and dont do anything about it. Thats not customer friendly.
I think Apple is more serious on that point and investigates every single way to save battery life.
Whats the use of a phone (mine is pretty basic with no specials programs on it) that could not last 1 day?
I think buyers must give a signal to HTC to take these sort of problems serious.
I see lots of posts around the Interwebs complaining about battery life on smartphones (specifically Android ones, since I don't hang out on sites that are aligned with evil Apple), so I decided to consolidate my knowledge for people with Slide's to improve their battery life.
DISPLAY
This uses about 80% of the power according to battery use on auto-brightness. On a bright day I can read the screen at about 1/5 position on the brightness bar which cuts down heavily on the battery use.
There's not much else we can do to cut down on screen power usage, so moving on.
CPU
This one requires SetCPU, I strongly urge you to buy it from the Market (it's just a few bucks IIRC) and supports the AWESOME dev. If you're cheap just go download it from that link.
Once you have it you'll want to set up profiles! So click profiles, check the box next to the Sleep profile and choose 480,000/480,000 with ondemand scaler! I have no idea if it actually changes anything but the placebo effect is nice. Next back out of that and set the CPU governor to performance. What this does is clock the CPU to 600mhz constantly instead of scaling between 480mhz and 600mhz as the additional power is needed. It cuts down on choppiness while barely increasing the amount of battery required (in my experience the Slide tends to jump up to 600mhz when I'm not doing anything anyway).
Sync
Turn auto-sync off or set the sync intervals to the highest number possible (once a day I believe). It takes power and most of the time doesn't download anything important. If you really need some data just go and hit Sync Now and, well, it syncs.
Autostarts
There is this nifty little paid application in the market (costs like $1.25 or something) that you absolutely need: Autostarts
Basically applications launch when triggers are triggered, alot of these are pointless and just take up RAM and power.
These are what I have disabled:
After Startup
{Any 3rd party apps that aren't widgets}
Calendar Storage
Download Manager
Voice Dialer (unless you, yaknow, use it)
Maps
Mail
Calendar
HTC Media Uploader
My Account (unless you like the power alerts that take up power!)
Connectivity Changed
Download Manager
My Uploads
HTC Media Uploader
Genius Button
Media Mounted
My Uploads
Application Installed
Voice Dialer (wtf?)
Pico TTS (sem-wtf?)
Application Removed
Voice Dialer
Application Replaced
Maps (lolwut?)
Autokiller
There's an app called Autokiller, it changes the internal task killer's settings as to when to tell an app to shutdown (at stock settings this is almost never).
I use the moderate preset, but you may want to increase it if you never want to have to manually kill a task. Note that this method tells apps to cleanly shut down so data is saved (such as the page you are on in the Browser)
Additional Settings
In Mobile Networks set to GSM only (no 3G)
Turn GPS and WiFi off when not in use
Turn always on data off
Use a silent or vibrate alert method instead of sound alerts
Turn off your screen whenever you can
If you flashed ENG-BUILD flash the updated RADIO!!!!!!!
Protips
Do several battery cycles every 6 weeks (Charge to 100%, discharge to 0%, charge 2 hours past green LED while phone is off)
Espresso is heavy duty stuff, use a non-sense ROM for additional speed
Charging via USB takes significantly longer than charging via AV
Live Wallpapers will use lots of battery
Use wallpapers formatted at 480x320
Limit the amount of widgets you have to around 5 (unless they are from the same app, like Beautiful Widgets) they constantly refresh and do their thing in the background
I learned most of this thanks to enatefox's guide which I modified to suit the Slide, a coffee fueled mind, and general observations. If you have anything to contribute please let me know and I'll add it!
check general, few threads there on this .. it seems the development section is the hot spot around here..
an APN widget will do wonders, or even juicedefender.
i disable APN until I need it. screen is about 30% always. after everything i do i lock the screen.
on a normal days use (1-2hr phone calls, 30-50min of browsing the net, a ton of text messaging, and streaming slingbox) I'll have about 60% battery by 10pm.
great guide. thank you.
does autostart continually kill those processes? I ask because that long list of bloatware you listed is what is irritating me on my slide and even when I force kill them all they restart themselves every 5 minutes. I have taskilller set to kill them and they come back like the herp constantly.
skullkandy said:
great guide. thank you.
does autostart continually kill those processes? I ask because that long list of bloatware you listed is what is irritating me on my slide and even when I force kill them all they restart themselves every 5 minutes. I have taskilller set to kill them and they come back like the herp constantly.
Click to expand...
Click to collapse
Autostarts does not 'kill' processes, it disables them from running when certain triggers are triggered.
For example if SpywareApplicationOVER9000 runs everytime an application is installed, and you disable it in Autostarts, then it will not run when an application is uninstalled
ArizonaDomer said:
an APN widget will do wonders, or even juicedefender.
i disable APN until I need it. screen is about 30% always. after everything i do i lock the screen.
on a normal days use (1-2hr phone calls, 30-50min of browsing the net, a ton of text messaging, and streaming slingbox) I'll have about 60% battery by 10pm.
Click to expand...
Click to collapse
Can you write up a quick how to for Juicedefender?
Hey all,
I have a rooted Desire Z, that's almost 2 years old. I had been using the Virtuous Sense ROM for the most part and had been quite happy with it. Recently, I figured it was time I switched to ICS. So I flashed the Andromadus Mimicry ROM and have been loving it ever since. My only gripe with it is the battery life. I have been meaning to test it out extensively before I could bother the DEV with my nooby queries, but haven't had the time to do so.
When I check Settings > Battery, the screen always seems to be using up most of the %. I have searched through the forums and have done the following, in addition to a few steps that I could think on my own -
Re-calibrated Battery Stats
Clear cache & devklik cache fortnightly
Brightness - Set to 20% (No Auto)
Set to dim after 30 seconds
No render effects (ROM specific I think)
Animations are On.
No Bloatware Installed (Facebook, Twitter, Chrome, etc)
Sync is Auto (I need this)
Froze Google Maps and few other unnecessary background apps that I rarely use with Titanium (using Watchdog to monitor what was eating up CPU)
Disabled Google Backup
Wifi is always Off (I have to depend on 3G for my connectivity needs)
No Battery Saving Apps or Auto Kill Task Managers installed.
News & Facebook widgets set to manual update.
V6 SuperCharger with stock Services.jar.
CPU clock runs @ 245 Mhz on idle, which is most of the time.
GPS is always Off
Google's Location Service (Wifi & mobile network) is On.
Coming to the point, last night the phone was fully charged to 100%. I decided to turn Airplane mode On before I went to sleep to figure the drain in the absence of networks. Woke up to find 78%. That's 2.2% per hour. I checked Better Battery Stats and it seems the phone was awake for the whole ~10 hours. The culprit seems to be GPSLocationProvider. Note that the GPS is Off ; so this has to be the Google's Location Service (Wifi & mobile network)? Disabling this would be inconvenient because it's needed for Weather, and a few other things.
I'm attaching the screens, because I'm pretty new to this and would like to see what people who know more than me have to say about this. A drain of 22% in Airplane mode isn't normal and is crazy, right? Or perhaps,it's time to get a new battery?
PS: The battery has drained a further 20% since the time I took the screenshots, while I was typing this. I merely used the phone for a few messages and to check my mail. (see second-to-last vs last screen)
Radio - 12.56.60.25_26.10.04.03. Signal Strength is usually ~ -89dBm. I have noticed people claiming that the .19 radio is quite battery-friendly but I live in India, so I had to go with the WWE radio that seemed the latest. I didn't think it'd work here. Perhaps I'm wrong?
Any insights offered would be greatly appreciated.
It's an app calling the location services api. Try disabling Facebook and/or whatsapp and see if that helps. I'm unfamiliar with either of those apps, but I've heard nothing but bad things about the Facebook app, so that would be the first one I'd remove to see if it helps.
This goes without saying but of course make sure you've done a full wipe of /data since coming from your old rom. Hope that helps. I'm currently sitting at 12 days since my vision has been unplugged in airplane mode (radio off, wifi off, etc).
Sent from my SAMSUNG-SGH-I747 using xda premium
GPSLocationProvider - Reboot to Fix.
Thanks for your input, blk_jack. I did do a full wipe before migrating. As suggested in your ROM's OP, I don't use the Facebook app. The Facebook entry seen in the screenshot belongs to the Facebook Messenger app, which might partly be the cause. Upon further searching, I found that many people have been complaining about this issue on many different flavors of ROMs (ICS / JB) and hardware (HTC, Samsung, LG). Let me elaborate.
Searching for 'GPSLocationProvider' brings a ton of threads about this issue. I will post here whatever I could gather from these posts, for the benefit of others who face this.
Some people get this wakelock if they use GPS for anything and then turn it off. For example, if you turn on GPS, use a map application for a short while, close the map application and turn off GPS, the wakelock is born. Even if you kill any active map services, it will still be there and ends up draining your battery.
It seems to be chiefly caused by apps that use Location such as Google Maps, Facebook, Facebook Messenger, etc. Turning off all location services is advisable.
In some cases, the GPS does not turn back on until the phone is rebooted but that is not the case in this ROM. GPS works when turned On.
To get rid of the wakelock caused by GPSLocationProvider, rebooting seems to be the only working option as of now.
There is a step-by-step instruction guide (written by Karpfenhai) in the [APP]BetterBatteryStats thread OP, that deals with configuring autostarts, which apparently fixes this issue. I'm yet to try it, so I can't comment if it works or not.
I wish I'd been smarter and searched for 'GPSLocationProvider' instead, before creating this thread. Thanks for your time, anyway.
Screen Off Widget/Shortcut on Desktop?
@blk_jack
If I may use this opportunity to ask you something else related to your ROM.. I just found out that I don't have 10 posts yet, so I can't post it in the ROM thread.
Is it possible to create a widget/shortcut on the desktop to turn off the screen, perhaps by using the Launcher Activity options? I am currently using the one that's there in the Notification Drawer (Power Widget), pulling it down each time to turn the screen off is a tad inconvenient. The desktop Power Widget doesn't seem to have the Screen Off option. Is this possible at all without having to use an external app?
Yep, I have a nova launcher gesture set to run the root app killscreen.apk (search google).
You could add that app to your home screen too.
Sent from my SAMSUNG-SGH-I747 using xda premium