Database Users

battery time just fell off

without doing anything new my battery time just droped off the face of the earth.. its down about 75%. i was getting a full day mixed use now all of a suden im getting 6-8 hours with just a few phone calls.
my awake time is at 16%
I havent done anything new that i can think of.
im using (and have been for awhile) the mugen 1800 extended battery.
trying to think what might be doing it and cant come up with anything i havnt found in the forums already.

you probably downloaded some app that is running in the background continuously. check with a task manager to see what's running, and then try uninstalling some recent apps to test it out.

thats what i was thinking but i cant find anything new running with the task manager

kraash said:
without doing anything new my battery time just droped off the face of the earth.. its down about 75%. i was getting a full day mixed use now all of a suden im getting 6-8 hours with just a few phone calls.
my awake time is at 16%
I havent done anything new that i can think of.
im using (and have been for awhile) the mugen 1800 extended battery.
trying to think what might be doing it and cant come up with anything i havnt found in the forums already.
Click to expand...
Click to collapse
Could just be a bad battery? I'm having same problem, maybe worse with stock battery. I went from 100% down to 15 in like 5 hours just reading my RSS feeds every hour or so. I think I may have fried my battery using it to tether for excessively long periods.
You're not using your phone to tether are you?

Mine is way down this week too. Initially I thought it was Swype, but not so sure anymore because no other users are reporting problems.

Are you using Modaco's rom and kernel ? or any new kernel for that matter? Ever since I switched kernels my battery hasn't made it through the day.

notrock said:
Are you using Modaco's rom and kernel ? or any new kernel for that matter? Ever since I switched kernels my battery hasn't made it through the day.
Click to expand...
Click to collapse
now that you mention it this all did start happening the same timer I flashed modaco custom kernel. trying ghil's now so we'll see.

theresthatguy said:
now that you mention it this all did start happening the same timer I flashed modaco custom kernel. trying ghil's now so we'll see.
Click to expand...
Click to collapse
I'm using gbhil's custom kernel and seeing BETTER battery life when used with setCPU (using ondemand setting with 'standby/sleep' profile turned on, and set to 160/480).

theresthatguy said:
Could just be a bad battery? I'm having same problem, maybe worse with stock battery. I went from 100% down to 15 in like 5 hours just reading my RSS feeds every hour or so. I think I may have fried my battery using it to tether for excessively long periods.
You're not using your phone to tether are you?
Click to expand...
Click to collapse
No I'm not.. Turned a few more newer apps off and still no good today.. I was at 5% batt left after 9 hours with about 10 minutes web browsing (not wifi) 4 or 5 text messages and about 45 minutes talk time. That's down about 90% from were I was a week ago .

I managed to narrow my problem down to the Taskiller widget. Removed the widget (still running the app full time) and all is well.

Last night I rolled back to before I used a custom Kernel. I rather battery life over speed. I need my phone to last from 6am to at the very least 7pm. I think once people get over the performance boost, we'll see a lot more posts relating to battery issues.

cincij said:
Mine is way down this week too. Initially I thought it was Swype, but not so sure anymore because no other users are reporting problems.
Click to expand...
Click to collapse
I did hear report Swype was killing there battery as well over at PPCGeeks. Not sure if so, but it has been mentioned

athlet1c said:
I did hear report Swype was killing there battery as well over at PPCGeeks. Not sure if so, but it has been mentioned
Click to expand...
Click to collapse
might be that too, i hope not as i love that keyboard. just having it installed shouldn't drain the battery, should it? im on day 2 with the custom kernel and i too noticed more battery drain. at 1pm my hero was fully charged. i only played a bit with the phone and made two short calls and it's down to 86% already at 4pm. i want to roll back but i do like the speed of the new kernel. ill see how it does tonight.

athlet1c said:
I did hear report Swype was killing there battery as well over at PPCGeeks. Not sure if so, but it has been mentioned
Click to expand...
Click to collapse
I decided to uninstall swype and I went from not being able to go a 5 hr shift to today working an 8 hours right now and I should still have little over half battery.

theresthatguy said:
I decided to uninstall swype and I went from not being able to go a 5 hr shift to today working an 8 hours right now and I should still have little over half battery.
Click to expand...
Click to collapse
yeah i love swipe but i uninstalled it as well and went back to using touch input. the battery life seems better now. i hope this can be resolved.

fixxxer2008 said:
yeah i love swipe but i uninstalled it as well and went back to using touch input. the battery life seems better now. i hope this can be resolved.
Click to expand...
Click to collapse
Yeah going back to regular input sucks. Swype was only some leaked beta version, we don't really have right to complain; however, I bet their end product will be much better. I just hope they'll release it as an app and not as part of custom Android phone so we can get it sooner.

figured I woud resurect this thread rather than start a new one.
yesterday I decided to RUU my phone to pull the completely stock apks out of it. after I did that I restored my backup of fresh 1.1 with gbhils kernel and now I am at 90% awake time spare parts shows that "android system" as something keeping it awake. any suggestions on what this could be? could it have something to do with restoring the back up with the kernel over stock without a wipe?

!!!!Battery Saver Fix?

I'm running Beta 3 Rom rooted ROM. I accidentally hit fix permissions in ROM Manager app and now my battery is seriously lasting about 7 hours longer with the same usage and no tinkering. Also I'm getting less forced closes overall. Not sure why ... and I'm not sure if doing this is very dangerous and leaves me vulnerable going forward. Anyone know if this makes any sense? What does fix permissions do in Rom Manager? Is this a fluke? Try at your own risk ... I'm just not sure. If anyone knows of a possible explanation or is brave enough to try it ****AT POTENTIALLY GREAT RISK *** post your results here. BE CAREFUL ... BE CAREFUL ... BE CAREFUL.

Im trying it .. we see what happens.
Sent from my HTC Aria via XDA app

I tried it. Figured what the hell, only had my phone a couple days. so nothing much to lose.

cjperone said:
I'm running Beta 3 Rom rooted ROM. I accidentally hit fix permissions in ROM Manager app and now my battery is seriously lasting about 7 hours longer with the same usage and no tinkering. Also I'm getting less forced closes overall. Not sure why ... and I'm not sure if doing this is very dangerous and leaves me vulnerable going forward. Anyone know if this makes any sense? What does fix permissions do in Rom Manager? Is this a fluke? Try at your own risk ... I'm just not sure. If anyone knows of a possible explanation or is brave enough to try it ****AT POTENTIALLY GREAT RISK *** post your results here. BE CAREFUL ... BE CAREFUL ... BE CAREFUL.
Click to expand...
Click to collapse
How much total battery life were you getting before and after the fix?
I'm running attn1's rom and I get excellent battery life, like literally 1.5-2 full days of average use before it goes down to 0.

modest_mandroid said:
How much total battery life were you getting before and after the fix?
I'm running attn1's rom and I get excellent battery life, like literally 1.5-2 full days of average use before it goes down to 0.
Click to expand...
Click to collapse
I'm getting maybe 15 hours.
Sent from my HTC Aria via XDA app

I tried it too... there were tons of permissions to fix! Will report back in a couple days

Can you reverse this if you wanted to?

i dont think you can reverse it.
i would reccomend a nandroid backup before you do this.

jasonyump said:
i dont think you can reverse it.
i would reccomend a nandroid backup before you do this.
Click to expand...
Click to collapse
Quick question, if I needed to wipe to restore settings from a nandroid backup. Would I get everything as it previously was, latest rom installed, with all my apps?

SysAdmNj said:
Quick question, if I needed to wipe to restore settings from a nandroid backup. Would I get everything as it previously was, latest rom installed, with all my apps?
Click to expand...
Click to collapse
I believe nandroid is a full backup, almost like an image. So if you needed to recover it it should restore your phone to how it was when you ran nandroid.

When you restore a nandroid backup everything returns to exactly how it was when you did the backup, I.e.homescreen, unread texts, notifications, settings apps and all.
Sent from my HTC Liberty using XDA App
Sent from my HTC Liberty using XDA App

Which Rom manager did you use? I got one from the market and installed it. When I attempted to fix permissions, it did nothing. BTW my Aria is rooted and has sideload capabilities. Thanks.

assuming this does work anyone have a theory on why?

Quick question guys. How long does your phone take to fully charge? I've had my phone today from 8am to 7pm
Plugged it in and after being plugged in for about an hour and fourty min. It says it is at 100% but the light is still red. I did repair permissions and rebooted I'll see if it helps tomorrow.
Sent from my HTC Liberty using XDA App

How do you guys do the fix permissions thing? I have the liberated Rom and my battery only last like 7 hours
Sent from my HTC Liberty using XDA App

you have to use Rom Manager, download it from the market. you have to have clockwork recovery installed also. Now 7 hours for battery life, is that under heavy, moderate or light use? if thats under heavy use thats not bad at all. also depends on what widgets your using and how your phone syncs, updates weather etc. theres alot you can do to optimize battery life without the permission fix, if it even works?.
eortizr said:
How do you guys do the fix permissions thing? I have the liberated Rom and my battery only last like 7 hours
Sent from my HTC Liberty using XDA App
Click to expand...
Click to collapse

it depends on if im using my phone while its charging, it can take anywhere from 1-3 hours, or more if it gets hot and stops charging. and what percent did you start charging your phone at? from like 15% to a full charge without using my phone, itll take approximately about an hour and a half
pcruz said:
Quick question guys. How long does your phone take to fully charge? I've had my phone today from 8am to 7pm
Plugged it in and after being plugged in for about an hour and fourty min. It says it is at 100% but the light is still red. I did repair permissions and rebooted I'll see if it helps tomorrow.
Sent from my HTC Liberty using XDA App
Click to expand...
Click to collapse

It was 15% and it took ~2 hours to reach 100% and turn the led green. so i basically got 11 hours with medium heavy use which is pretty good.
Sent from my HTC Liberty using XDA App

ryan92084 said:
assuming this does work anyone have a theory on why?
Click to expand...
Click to collapse
This.
Confirm/deny? Theories?

General Battery tips.
Remember you are running a lithium ion battery, that means it is important to get a full charge on the first charge, and also charge it as often as possible. Letting it often get to the critical state can have long term negative effects on battery life. Such is the limit of our battery tech.
Optimize how many apps you have running, use advanced task killer etc. I also heavily recommend that you change how often your phone looks for updates, facebook notifications etc.
Turn gps on only when you need it.
Ditto for wireless.
I let my phone auto the brightness of the screen.
I generally get 2-3 days battery life, I talk for approx 1 hr a day. I watch videos/ play emulators for 1hr a day and I frequently text, update calendar information, and setup checklists.
As far as permissions go, chances are if you declined on many of them, some of your apps can no longer check for updates etc. So you are suddenly getting the battery life I get by making sure my apps are always dead unless I need them.
Also remember, many apps turn on automatically when you restart your phone, so run the app killer when you boot.
Good luck.

Slide running hot

I have not found a thread yet so maybe it's just mine. But.... I recently flashed cm7 nightlies and for some reason my slide is running way hot. To the point whee it causes system instability. I dunno if the cpu settings are wrong (i havnt changed them but i'm in the mood to start experimenting right about now) and thats causing instability?....... i dunno at this point im at loss, has any body else fought this issue and could give some clean input i would appreciate it thanx

Could be your battery is going, try a different battery if you have one. Mine did that and was fine when I switched batteries.

jimczyz said:
Could be your battery is going, try a different battery if you have one. Mine did that and was fine when I switched batteries.
Click to expand...
Click to collapse
well if thats the case i wont wont play with the phone too much and just go buy a new one tmrw. Or do you know of any good extended batteries?

A lot of people recently have discovered that by flashing some of the recent CM7 Nightlies (Nightly 130ish on up) that their CPU's have been running at full capacity no matter what. Try flashing a different ROM like the ChaCha or maybe even CM6.1.1.

would an app like titanium back up allow me back my data to the point where i wont have to re-download everything? because ive spent more than a few hours downloading the apps i like for my phone (not to mentions hrs on downloaded games )

zavien said:
would an app like titanium back up allow me back my data to the point where i wont have to re-download everything? because ive spent more than a few hours downloading the apps i like for my phone (not to mentions hrs on downloaded games )
Click to expand...
Click to collapse
Yes, all your apps will be backed up that you choose, then you can restore them later on.

aaldiar said:
A lot of people recently have discovered that by flashing some of the recent CM7 Nightlies (Nightly 130ish on up) that their CPU's have been running at full capacity no matter what. Try flashing a different ROM like the ChaCha or maybe even CM6.1.1.
Click to expand...
Click to collapse
i've noticed also that my phone runs hot only after prolonged game play for some odd reason.......

The key to good battery life on SGS 2 is

persistence (with a modicum of technical ability).
Ever since I received my SGS 2 I've been plagued with "poor" battery performance - The stock ROM that came with it wouldn't stay charged longer than 12 hours when I was doing nothing with it and barely 6 hrs when I used it. I quickly discovered that Samsung had released a newer version via KIES, updated it and it improved it, not life changing but just enough to see me through the working day.
I was also disillusioned with the stock ROM that came with the phone - too much "bloatware" that I'd never use. Found this forum and started by rooting the phone, then using CWM and Titanium Backup to make full backups before moving on to loading custom roms. Tried the 3 that seemed most popular and stable - VillainROM, LightningROM and DarkyROM.
Much preferred Lightning ROM but after I'd installed it found that battery life was abysmal to the extent that I could have the phone plugged in and charging via USB and the battery would continue to go DOWN!
After restoring back to a CWM backup I did more research and found an app that would let me know what was killing the battery (see link at end). I re-installed the Lightning ROM and found that a security application called Privacy Guard (not LBE Privacy Guard) was chewing the battery up. This now made sense as this particular app had stopped working as it should after upgrading to Lightning ROM.
Un-installing this app made a massive difference to the battery life.
During this period I did have Juice Defender installed and since rooting the phone SetCPU. I had also encountered the "issue" with SetCPU appearing to cause reboots, closedowns and had turned off the functionality. But I was trying to use setCPU under the stock ROMS not a custom rom.
Since fixing the Privacy Guard issue and performing a clean install of Lightning ROM I now have a phone which lost only 3% battery last night (almost 8 1/2 hours).
I now have Juice Defender Ultimate, SetCPU configured to on-demand between 200Mhz and 1Ghz (I raise manually when I play games needing 1.4 or 1.6Ghz), Timeriffic to turn stuff off when I don't need it.
I have also put time into either removing or freezing (using TB) apps that I won't need.
Yes when I use the phone the battery goes down but it's a powerful phone and I treat it the same as a laptop running on batteries - The more I use it the less the battery lasts, get use to it people!
*link to app showing battery stats
http://forum.xda-developers.com/showthread.php?t=1179809

i'm on stock kf3. rooted and removed bloatware (hubs, software update, maps etc). Battery life is good.
sent from my galaxy S2.

does juice defender really work??

supertazzta said:
does juice defender really work??
Click to expand...
Click to collapse
If you use it correctly and know what it is doing = yes.

A solid tip is to never ever ever ever ever ever ever use any of the bloatware provided by Samsung. Don't even start it once because some stay active even if you don't use them. They drain the life out your battery and there are enough good alternatives.
Testraindrop said:
If you use it correctly and know what it is doing = yes.
Click to expand...
Click to collapse
I would love to hear about your settings.

It's an old one and oft repeated, but for anyone fresh to the 4378 (and counting) battery life threads, get out of Google Latitude and stay out - kills the battery

I'm wondering if you use your phone frequently all day and JD constantly renegotiating connections is it better to not use it at all
Sent from my GT-I9100 using Tapatalk

If you are using yout phone really frequently (data) then JD is useless, but for me it really good.
I have bad signal at work, so I have JD set to sync every hour, preferred wifi and automatic night mode when i'm asleep.
Data on when screen on and everything is fine (for me).

Is there a safe way to delete bloatware apps? I mean what if I delete something that messes up the phone? Do I need to reinstall the Rom?

supertazzta said:
does juice defender really work??
Click to expand...
Click to collapse
It works or not is a different matter, IMO it is not needed, nothing is needed actually. Just install JD and you will see it under Wakelocks in Better Battery Stats. So it drains more than saving it.
spiros83 said:
Is there a safe way to delete bloatware apps? I mean what if I delete something that messes up the phone? Do I need to reinstall the Rom?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1069924&highlight=Safe+to+remove
Regards.

ithehappy said:
Regards.
Click to expand...
Click to collapse
Thanks a lot!

For working and busy people, i think you guys can get better battery life than me. As a student in a holiday(nothing to do except playing ps3 and running errands), I most of the time will unlock the sgs2 whenever i glanced or watched it. moving the icons around, changing launchers, putting widgets, etc... i took so many times using sgs2 everyday and it can last about 6-7 hours with almost all the time screen on except when i sleep.
for me, 10 hours is already ok. get used to it guys. buy a spare battery, or an external charger. no need to worries at all. you dont want to be a freak for battery life. constantly checking the battery and whats draining them. its not cool~~ use it to the fullest! until the manufacturers make a phone with large battery capacity! i mean officially. those 3rd party large battery are just a show off. they drain as much as the stock ones.

Gustopher said:
It's an old one and oft repeated, but for anyone fresh to the 4378 (and counting) battery life threads, get out of Google Latitude and stay out - kills the battery
Click to expand...
Click to collapse
Can I just delete it from my system apps folder and be done with it? Cuz I don't use it!
Sent from my GT-I9003 using Tapatalk

Lordrdx666 said:
Can I just delete it from my system apps folder and be done with it? Cuz I don't use it!
Sent from my GT-I9003 using Tapatalk
Click to expand...
Click to collapse
Not sure - it may have dependencies with other more useful tools such as Maps. Just make sure you are logged out and keep clear of it - it's reasonably well behaved if left alone.

I have always used Stock not rooted yet and get around 13-19 hours, I don't use the samsung hubs, but have facebook, twitter, google + and three emails constantly running and use wifi browsing a lot
so am quiet happy as it is hence no need to root although I like flashing the new firmwares via ODIN

Just a brainwave??
With Titanium Backup you can freeze your unwanted apps. When the phone is working without problems you can safely remove the frozen apps (after making a backup of course)

raxio said:
Just a brainwave??
With Titanium Backup you can freeze your unwanted apps. When the phone is working without problems you can safely remove the frozen apps (after making a backup of course)
Click to expand...
Click to collapse
Will think about freezing latitude though I don't use it
Sent from my GT-I9003 using Tapatalk

I noticed that if you have alot of widgets running you will ruin your battery life. I dont use many and got amazing battery life out of the Stock Rom.
I am now using cognition rom and easily have the battery last all day still....

Cognition - Imo best samsung based rom on the s2, super stable with battery life on first flash lasting 18hrs+. If you havent tried it id suggest you did.
Sent from my GT-I9100 using XDA App

36-38 Hours Battery Life!
I moved over from the HD2 a month ago. One of the things that astonishes me about the S2 is the battery life.
36-38 hours is the norm for me.
This is with:
- VillainRom
- Push Email (heavy use ~ 100 per day)
- No Lattitude
- No Wifi (HSDPA sufficient)
- No Bluetooth
I don't spend a lot of time making calls but being relatively new I am constantly fidgeting with it.

Is my phone nomral? "Android OS" eats my battery

i have bought my GN last week, once i have got the phone, i immediately update it to KK1 (2.3.6, Hongkong version) via OTA.
i have read many posts on XDA that you guys with 2.3.6 are happy with the battery life, however, it is not the case on me.
as you can see, i have used for 5 hours after unplugging from full-charge, the battery drains from 100% to 65%, during this 5 hours, i had 10min phone call, took 2-3 pictures using build in camera, about 10 whatsapp messages
do you guys think it is reasonable?
what should i do to fix it?

Try flashing SheepRom. Battery life is good for me.
Sent from my Galaxy Note through telekinesis

djowett said:
Try flashing SheepRom. Battery life is good for me.
Sent from my Galaxy Note through telekinesis
Click to expand...
Click to collapse
These third party ROMs all seem to have one issue or another based on what I've read in the threads. Better to just root it and remove apps and tweak yourself.

I haven't had any trouble with Sheep Rom. I think the problem with some kernels is that the phone is not entering deep sleep. You could try installing setcpu and forcing it to 200Mhz while the screen is off.

5150Joker said:
These third party ROMs all seem to have one issue or another based on what I've read in the threads. Better to just root it and remove apps and tweak yourself.
Click to expand...
Click to collapse
Completely agree. Wish I never screwed mine up with Odin. Wish I could get back to my stock ron and just root, but my stock ron can't be found. I'm on the Hong Kong non modified ron now and am as close to being happy as I can get without selling and really buying.
I had problems with the sheep rom not showing apps in the market that worked and showed fine on the stock rom. Yeah yeah yeah, I know there was probably a fix but I'm not willing to spend all my time fixing silly **** that wouldn't be a problem.
Sent from my GT-N7000 using xda premium

carhigh said:
Completely agree. Wish I never screwed mine up with Odin. Wish I could get back to my stock ron and just root, but my stock ron can't be found. I'm on the Hong Kong non modified ron now and am as close to being happy as I can get without selling and really buying.
I had problems with the sheep rom not showing apps in the market that worked and showed fine on the stock rom. Yeah yeah yeah, I know there was probably a fix but I'm not willing to spend all my time fixing silly **** that wouldn't be a problem.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
I had the same problem with the market this morning, I uninstalled the market updates and the apps would install again.

You should install a official rom and silly **** like that wont happen. BTW my battery sucked on that sheep rom!
Can we be done with the rom battle now?
Sent from my GT-N7000 using xda premium

Haha yeah, I'm just trying to help the OP. I do have a backup of the stock rom, so I might take your advice and install.
Sent from my Galaxy Note through telekinesis

I recommend starting with installing betterbatterystats to monitor wakelocks. That has identified my android os problems.

thanks guys for your suggestions on roms
i would prefer keep using the stock rom
will try to install betterbatterystats to monitor wakelocks, i will post the result after 1 day usage for our further investigation

Stock
I'm running stock for now, no root, and battery is pretty good. After installing juice defender ultimate, it's actually better than my GS2 battery.

rooted and using titanium to freeze a lot of the junk apps originally installed. Currently at 21 and 33 minutes with about 75% left. I never turn off wifi and have sync going all day. Browsing and a few voice calls. Not bad IMO

Suzook1 said:
rooted and using titanium to freeze a lot of the junk apps originally installed. Currently at 21 and 33 minutes with about 75% left. I never turn off wifi and have sync going all day. Browsing and a few voice calls. Not bad IMO
Click to expand...
Click to collapse
What'd you freeze?

Suzook1 said:
rooted and using titanium to freeze a lot of the junk apps originally installed. Currently at 21 and 33 minutes with about 75% left. I never turn off wifi and have sync going all day. Browsing and a few voice calls. Not bad IMO
Click to expand...
Click to collapse
I would appreciate if you could you give us a list of those junk apps.

bunch to list (which I will do later) but go into running services. there should be a ton of crap (assuming your on stock) you can freeze. These are mostly stuff I would never use

Charged to 100% and left overnight...the drain was about 2% per hour...anyone can explain to me why..??...screenshots attached..

2% with wifi on is normal i think. just you off wifi then it will go < 1% /hr
You can use phone weaver to auto manage wifi. It will switch off at specific time and will switch on autometicaly at predefine time.
I manage to switch off data connection + wifi at 2am to 9am. and by bettery drain just 4% during this 7 hrs.

dr.ketan said:
2% with wifi on is normal i think. just you off wifi then it will go < 1% /hr
You can use phone weaver to auto manage wifi. It will switch off at specific time and will switch on autometicaly at predefine time.
I manage to switch off data connection + wifi at 2am to 9am. and by bettery drain just 4% during this 7 hrs.
Click to expand...
Click to collapse
Hmm...but what about Android OS battery usage..its always high..??

wat is wrong with this, it showing you how much battery drained by OS. if your phone is workng then smthing shud use it na?
if your use is <1 %/hr, and that use, is with android OS mostly. it means not other than OS draining your battery.
Look to total battery draining/hr, and smthing (like ne service/application) over consuming battery, thn you have to worry for that..

And while using betterbatterystats...i saw in kernel wakelocks that vbus_present and deleted_wake_locks were on for a considerable amount of time...
Do they cause high android os use and drain battery..??
See attachment