Database Info

Battery life VASTLY improved since update

unplugged 2 hours, wifi on, gps on, auto update on, facebook, played friut ninja for about 20 minutes, 1 game of cribbage, and been getting 4-5 email per hour, battery at 86%, before I would have been at 60% with that much use.
Anyone else seen battery life increases?

This. It's noon and I'm still at 80%. I used to have to set my phone to flight mode all day at work just to make it through the day. Now I can leave 3G on all day and not worry about it. That's the best part of the update in my opinion.

I was about to post this also. Yes, I have noticed a dramatic increase in battery life since I've updated. Now granted, it's been less than 24 hours but it is noticeable. I'll see how it goes over the next few days. But I agree, I am very happy with the update so far.

Which ROM we're you guys running before? FJ6 (stock)? A lot of users noticed better battery life after updating to some of the leaked builds (JH2 onwards)
Sent from my SAMSUNG-SGH-I897 using XDA App

mesasone said:
Which ROM we're you guys running before? FJ6 (stock)? A lot of users noticed better battery life after updating to some of the leaked builds (JH2 onwards)
Sent from my SAMSUNG-SGH-I897 using XDA App
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Click to collapse
I'm running completely stock-out-of-the-box since I got it.

I actually have worse battery life since updating. Have background sync off,GPS off,push off and lost 30% from full charge in 2 hours

noidd said:
I actually have worse battery life since updating. Have background sync off,GPS off,push off and lost 30% from full charge in 2 hours
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I have noticed the same with all of the same settings as you

4h 45min since unplug.
Email push multiple times an hour, text messages, light internet use, light market use and 35 minutes of guns'n'glory. I am at 71%

Glad someone else noticed this
I'm a victim of the partial update but my battery drain has been nearly half! I've actually left live wallpapers on and can make it through the while day at the rate I'm going
Sent from my SAMSUNG-SGH-I897 using XDA Ap

6 hours 53 minutes since unplug and I'm at 23% battery. This is roughly on track with previous battery depletion, but today I've been doing heavier internet and Facebook use than usual. I think that, previous to this update, I would have had to charge by now. This is with background data and sync on, over wifi, with a combination of Google Listen, Music Player, and Pandora use.
The telling point is that screen battery use is about 10-12% lower than usual for this type of usage, at 54%. I've seen it as high as 70% on days when I'm playing around with the phone a lot.
I'm ready to call this an improvement.
Sent from my SAMSUNG-SGH-I897 using XDA App

My phone was at about 75% at around 8:00PM last night. It's currently 2:42PM now and it's only down to 25%. Granted, it was in sleep mode from around 12:30AM to about 7:00AM. But I did use it moderately last night and throughout the day today. So the battery performance has definitely improved for mine (stock with yesterday's update).

For those who have seen an improvement:
- Did you use a task killer pre-update?
- Are you using one now?

ageros said:
For those who have seen an improvement:
- Did you use a task killer pre-update?
- Are you using one now?
Click to expand...
Click to collapse
I was not using a task killer either pre- or post-update.

r_3 said:
I have noticed the same with all of the same settings as you
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Click to collapse
Same here... I also let the phone drain to the point of where it shut off, charged and lost 30% in 4 hours!

Yes
ageros said:
For those who have seen an improvement:
- Did you use a task killer pre-update?
- Are you using one now?
Click to expand...
Click to collapse
yes pre and post, I am using auto kill

if i do this update do i lose my root?

Unfortunately my battery life has been greatly decreased by the update. My phone is rooted, but the update installed without any trouble on the first try. Before the update the phone was fine between 9am and 1-2am without charging it at all. That's being on wifi most of the time, and maybe a bit of talking, e-mail, and rss reading. Once asleep I'd let it charge overnight. Typically Display used the most battery, usually about 50%.
Since the update I find that I need to charge the phone in the middle of the day. The first full day of the update I used the audio player for several hours, so I thought maybe that was it, but I've done that before without a major impact on the battery. Today I didn't use the audio player at all, and after 8 hours the battery is down to 26%.
According to the power usage information the largest consumer is Voice calls, at 29%. That was 11m 46s of call time. Looking at Juiceplotter, for a typical day at work before the update my battery dropped about 2% in 2 hours, with the phone on wifi, and otherwise idle. Today the phone lost 6-9% in 2 hours of being idle.

The last time I charged my phone was yesterday morning. I just plugged it in an hour ago at 15%. Thats like, 35 hours on a charge after moderate usage. Not bad. Much better than my old G1 heh.

I'm at 45 hours, still at 29%. Light usage, probably ~12 hrs in flight mode, but music player on for about 5 hrs, 5 min voice call, a few texts, some facebook/web. Still very impressive!

I've had slightly better battery life since the update.

Terrible battery life, please help!

Hello I am new to this forum, I just got the Samsung galaxy s 4g this Wednesday and I was wondering if anyone else was having battery issues. Right now I have my phone set to minimum brightness, auto sync off, black bckground and juice defender on. So I don't understand why am I getting only about 3 hours of battery life when all I'm doing most of the time is surfing the web(this forum) and facebook. I even get better battery life from my dads vibrant which is completely stock, has auto sync on, no juice defender, and screen brightness set to 50%. From reading the stats of both phones, the vibrant 4g is supposed to have a slightly better battery. I also don't understand why if the screen is at the minimum it still takes up 94% of the battery whereas on my dads vibrant 50% screen brightness takes up 30%. Is there anything I can do? Will wiping the battery stats help? If so how do I do that from a stock unrooted vibrant?
Sent from my SGH-T959V using XDA App

Check your notifications settings. I know that Samsung's contacts integration with social networks takes a big toll on the battery, hence why I've disabled it. Also, disable T-Mobile's Contact Backup Sync, just use Google's contacts integration.

Thanks for helping, but yeah I have those disabled already.
Sent from my SGH-T959V using XDA App

icy56 said:
Thanks for helping, but yeah I have those disabled already.
Sent from my SGH-T959V using XDA App
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No, I charged mine this morning at 630AM, and I have been playing with it all day. It is currently 610PM, and I am at 60% still. Seems pretty good to me.

troby1986 said:
No, I charged mine this morning at 630AM, and I have been playing with it all day. It is currently 610PM, and I am at 60% still. Seems pretty good to me.
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Click to collapse
Wow thats much better than what I have been getting, have you changed any settings that might have increased the battery life for your phone?
Sent from my SGH-T959V using XDA App

Does the trick to fully discharge and recharge 3 times work with these batteries? According the the Li-on technology this is not supposed to be necessary but I've heard stories in the forums of folks getting great battery life on other phones after doing this. Many people also say their batteries work a lot better after a week of use (supposedly after "training" them as well.)
I believe the G2 is clocked down for this reason. You could try CPU-set app, clocking down to 500-800mhz when not gaming.
Anyone tried these tricks?

gggirlgeek said:
Does the trick to fully discharge and recharge 3 times work with these batteries? According the the Li-on technology this is not supposed to be necessary but I've heard stories in the forums of folks getting great battery life on other phones after doing this. Many people also say their batteries work a lot better after a week of use (supposedly after "training" them as well.)
I believe the G2 is clocked down for this reason. You could try CPU-set app, clocking down to 500-800mhz when not gaming.
Anyone tried these tricks?
Click to expand...
Click to collapse
Will ill try to cycle charge the vibrant and use it for a week, and ill try out cpu set. if this doesn't improve I'm definitely returning this phone. I had soo much expectation for this because I have seen people getting up to 24 hours. I can't even get halfway through the day barely using the phone.
Sent from my SGH-T959V using XDA App

Thats weird... I unplugged at 9:30 used it moderately untill 12:30 at which time i turned brightness to max and watched the intire incpetion movie and watched an episode of kitchen nightmares and ended up at 56%.
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mavictb said:
Thats weird... I unplugged at 9:30 used it moderately untill 12:30 at which time i turned brightness to max and watched the intire incpetion movie and watched an episode of kitchen nightmares and ended up at 56%.
Sent from my SGH-T959V using XDA App
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Yeah there's gotta be something wrong with my phone, after watching halfway through inception from a full charge and at 0% brightness I had 30% battery left.
Sent from my SGH-T959V using XDA App

I'm also struggling to make it through the day. I check Facebook / xda on occasion and text moderately, Gps off, notifications and auto sync off, display set to 0% with an all black background, even 3g off in areas where its spotty... I don't remember the vibrant being this bad...
Sent from my SGH-T959V using XDA App

did you guys do a full battery break in? I charged my phone to 100% drained it till it died charged it to 100% again with the power off then drained till it died again... I have great battery life.

What is your usage like? Im breaking in my battery again today.
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rando191 said:
What is your usage like? Im breaking in my battery again today.
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Auto brightness on GPS on sync on 20 texts 30 min playing games 20 min on Facebook now on xda app for 15 min. And standby for 3 hours... currently at 80%. Also have hepatic feedback on the Mtm gingergread keyboard. If that matters.
Sent from my SGH-T959V using XDA App

I got my replacement 4g today. Hopefully ill have better results. I have a question for those of you that are getting really good battery life, are you running juice defender or something similar in the background? Maybe that's a factor in why I've been getting terrible battery.
Sent from my SGH-T959V using XDA App

Im having the same issue with battery life.. for me its a deal breaker.. I use my phone pretty heavily for keeping up with email and a little web browsing as well as talking quite a bit.. My iPhone 3Gs lasted me all day of heavy use and with the SGS4G I have to charge the damn thing at least once a day with light usage and if I have to be on the phone a lot then its twice a day.. Not acceptable at all...
Thats with wifi and gps disabled..
On the 3Gs I had wifi, bluetooth and the gps running all the damn time...

Took my phone off charge at 6:30 this morning haven't put it on charge yet at 88% never had this much juice with the nexus one.
Sent from my SGH-T959V using XDA Premium App

I'm not having any issues with battery life or heating. I use wifi teather most of the day and I'm getting to use it all day without issue. I did cycle my battery 4 times already just in case it matters. FYI

The batteries that our phone uses DOES NOT require u to cycle the battery. In fact, doing so will harm your battery. To avoid damage to your battery always charge ur phone when u r at <15% battery level. Trust me I thought the same until I did the research. I will post more info when I get on my PC later.
Sent from my SGH-T959V using XDA App
**EDIT**
More information:
http://www.goodandevo.net/2010/06/does-the-htc-evo-4g-battery-need-to-be-primedconditioned.html
http://batteryuniversity.com/parttwo-36.htm

I just bought a Galaxy S 4G on wednesday. First android device coming from iphone 3G. I'm still trying to figure out the best way to preserve the battery life.
I took it off the charger at 6:30am and the battery was at about 2% at 8:30pm.
I haven't rooted the phone yet to remove some of the bloatware that comes pre-installed.
I've got email accounts synching, brightness set at about 10% w/ a static wallpaper. Played about an hour of angrybirds throughout the day and didn't really do any web browsing with a few phones calls. I mean 14 hours is decent but from what I've read there are plenty of people getting a full day of use and still have 50% battery left.
I guess once the battery fully charges I'll put inception on, turn off syncing and try a few other things.
So I guess I said all that to say this, my battery life isn't great but it's not downright horrible either. Any suggestions would be much appreciated.
And yes I'll continue browsing all the forums to see what else I can find.
Edit:
Played through half of Inception in airplane mode, brightness at minimum. I dropped from 93% to 80% in an hour and a half. Not too shabby.
Also created a shortcut to toggle between 4G modes and Edge. I know 4G is going to be a pretty big drain so I'll see how much that helps.
I'll keep tweaking it.

this is completely true and if you read the manual on page 13- h t t p:// downloadcenter . samsung . com/content/UM/201102/20110224044646930/T959_Galaxy_S_4G_English_User_Manual.pdf it says that
"• Do not wait until your battery is completely depleted before charging
your device. Repeating this process of a complete discharge and
recharge can over time reduce the storage capacity of any battery."
right now my phone is at 23% battery level with up time of 46:46:40 hrs/mins/secs. with skype calling (around 10 minutes), text messaging, browsing the net (for around 5 minutes about 6 times a day), and talking on the phone (around 15 minutes)
the settings i did:
1. took a picture with my finger blocking the camera to get pitch black picture and set that as my background and deleted all the shortcut icons (i short, i only have a blank screen with the only 4 icons down below)
2. changed the brightness settings to 2 clicks to the right from 0% brightness (or you can lower your brightness all the way down during the night, and 2 clicks away during the day, this will save you more)
3. disabled haptic feedbacks and audible touchtones, selections, and screen lock sounds
4. disabled animations
5. disabled background data and syncing when not in use
6. disabled packet data (3g), wifi, and gps when not in use
the last two are the biggest settings that made my battery last longer.
7. i only charge my phone when it gets to 20% and the manual recommends not to use the phone while charging
i hope this helps.
and yes it is recommended to charge your battery to 100% before you turn on your phone for the first time and this is also stated on the manual.
one more thing, don't forget to set your browser's brightness setting as well
Toshinobu said:
The batteries that our phone uses DOES NOT require u to cycle the battery. In fact, doing so will harm your battery. To avoid damage to your battery always charge ur phone when u r at <15% battery level. Trust me I thought the same until I did the research. I will post more info when I get on my PC later.
Sent from my SGH-T959V using XDA App
**EDIT**
More information:
http://www.goodandevo.net/2010/06/does-the-htc-evo-4g-battery-need-to-be-primedconditioned.html
http://batteryuniversity.com/parttwo-36.htm
Click to expand...
Click to collapse

[Q] Juice Defender helps in battery life?

I am going to try JuiceDefender to see if I can get 14-16 hours of battery life.
I normally have 2-2 1/2 hours talktime daily and normal web browsing with Email/FB/Twitter
Has anyone used or has experience with this app?
Thanks

Just dl'ed it also. Only been using it a few days but I see a small improvement.
Sent from my Desire HD using XDA App

I've used it before and found it made me lose battery faster.
Sent from my Desire HD using Tapatalk

Clienterror said:
I've used it before and found it made me lose battery faster.
Sent from my Desire HD using Tapatalk
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Could you elaborate?
I find the settings quite promising.
Wifi/Data control based on location/time/apps looks good. Don't know how they will help.
Yesterday I got through a full day with 10% left at 10pm.
Lets see if it stays that way

metaldood said:
Could you elaborate?
I find the settings quite promising.
Wifi/Data control based on location/time/apps looks good. Don't know how they will help.
Yesterday I got through a full day with 10% left at 10pm.
Lets see if it stays that way
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Well when I used it on my captivate it seemed it used quite a bit of power, more than it seemed to save by managing WiFi/3g. One found "green power" to be better as it is a lot less CPU intensive. Just my .02
Sent from my Desire HD using Tapatalk

I've been using JD on and off for a few days... It seemed to save some battery at first, but now it seems to be sucking it down. I left my Inspire on overnight and battery had drained by 50%! I also don't like how it handles wifi, always turns it off when I need it.

Been using Screebl (aggressive screen timeouts, but stays on depending on angle of phone) and Llama (location control for off/on wifi, gps, volume of ring and notifications) for a week now. Start with a full charge overnight, typical work day stats, on battery starting at 6:00 AM:
10-20 texts
8 hours wifi on (web, fb, twit, pandora, not all at once, just throughout the time wifi is on)
70 minutes talk time
background data on for syncing two google accounts, push
background data on for weather on stock clock widget 6 hour refresh
background data off for EVERYTHING else (manual refreshes on twit, fb, etc.)
end of day status: 8:00 PM 10% battery
this was best day out five, worst was 8 hours and the phone cried foul with 15% warning. I think there was more game playing that day. Otherwise very happy with the results so far.

read this.

I run AR 2.1 with juice defender oc 1.2ghz and get around 20 hours average on one charge. Turn off auto brightness and run it at about 20% also

Battery is Great on the Tunderbolt

Put it to a real test. Went to the grand prix today in st. pete.
Didnt even have a full charge around 90%. Had 4g on all day.. Brightness all the way up. Facebook , twitter, and 2 e-mail accounts running in the background. Took tons of video clips and tons of pictures, and streamed music through the bluetooth on the way home. As I type this its been 10 hours since it came off the charger and its at 50% battery with all the same items running.
At 1st I had very very bad battery life. But after using it for a few days and then doing a battery pull (read it would get better after all this) it has been working great, with the same or more use then I was doing the 1st few days of ownership. Just wanted to share a postive experience on battery life since I keep hearing and reading so many negative things.
Edit: Thunderbolt not tunderbolt LOL

Thanks for the tip.
I'm noob w battery. Do you mean just charge it full, pull it out and put it back in and it lasts you that much? I'm skeptical....The most I could have so far is 12 hours and I have 3 bars (out of 10) left.

quattr0 said:
Thanks for the tip.
I'm noob w battery. Do you mean just charge it full, pull it out and put it back in and it lasts you that much? I'm skeptical....The most I could have so far is 12 hours and I have 3 bars (out of 10) left.
Click to expand...
Click to collapse
The main reason people are having drain on 4g from what i heard was the software for the radio was re-written at the LAST minute (the reason for the delay) because they had to change their 700 MHz frequency just a bit higher.. something like 5 or 10 Mhz due to interference with with communication towers at airports. this sucker keeps dropping 4g like its no ones business. the new baseband which will be pushed out in the first update for the phone (hopefully in next month) should correct it.

Thats funny because i was at the gp today and my battery died before i left at 1p. Took a couple of pictures and 1 video. Used gps for like 10 mins and that was it. Stayed in my pocket for the rest of the day.
Sent from my ADR6400L using XDA App

hmm
I Disabled my 4G with dialing the *#*#(forgot the 4 numbers)*#*# and my battery has been lasting me alot longer

I'm in a 4G area so I have the phone set to LTE mode only and I get great battery life.

I probably have the worst battery life ever... 70% before putting it away and not using it. 5 hours later, I check my battery and I'm at 10%!! I didn't even use it!
Sent from my ADR6400L using XDA App

my battery was about to die on me today within 3 hours of being off the charger, granted it was with heavy use.. flashing multiple roms using titanium backup etc... but i still think that is asinine..

Powell730 said:
my battery was about to die on me today within 3 hours of being off the charger, granted it was with heavy use.. flashing multiple roms using titanium backup etc... but i still think that is asinine..
Click to expand...
Click to collapse
flashing roms will eat battery...once you are on a rom it takes a cycle or 2 to settle

anourack said:
I probably have the worst battery life ever... 70% before putting it away and not using it. 5 hours later, I check my battery and I'm at 10%!! I didn't even use it!
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
U need to learn how to charge it. Search around.
Sent from my ADR6400L using XDA App

The battery life on the TB is just as good as it was on my rooted dinc with a custom kernal. I have no complaints with stock unrooted TB so far and I use the **** out of it.

I turned off 4g and am going 16 hours on 50% battery. Really, to sit in my pocket, do calls, text, and check email I don't need 4g. I too noticed the 4g radio switching on and off constantly. Hopefully the baseband update will fix this.

ZBoater said:
I turned off 4g and am going 16 hours on 50% battery. Really, to sit in my pocket, do calls, text, and check email I don't need 4g. I too noticed the 4g radio switching on and off constantly. Hopefully the baseband update will fix this.
Click to expand...
Click to collapse
It has more to do with where you live and how good your 4G coverage is
Sent from my ADR6400L using XDA Premium App

i get 12hrs easy with moderate use. All I've done is turn off the GPS services when not needed and disable the lock screen... hope things improve for everyone having issues... :/

quattr0 said:
U need to learn how to charge it. Search around.
Sent from my ADR6400L using XDA App
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Click to collapse
What do you mean, is there a special way to charge it now?

anourack said:
What do you mean, is there a special way to charge it now?
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Click to collapse
I think he may be referring to the "bump" charge. Where you charge the phone to full, unplug it, turn it off, charge it to full again, unplug, turn it on, and charge it to full again. Not sure if this is an HTC thing or just a general lithium ion battery thing. But it helps IMO.
I get about 12 hours of battery life with moderate use. I little web surfing, lots of texting, light app usage. My phone is constantly switching from 4G to 3G when I'm indoors. Outside though I'm fine. I'm surprised about the different experiences people are having with battery life.
Since I can't get through a whole day without it dying I bought a second home charger on amazon. I'd like to get the extended battery, but it looks like it'd make this phone too big at that point. I wish there was some better battery tech coming out soon, since there hasn't been too much progression on that front.

Turn on the wifi radio. When you are home or anywhere you have access to wifi, the device will automatically turn the 4g radio off when wifi is up. That simple change has made a huge difference and I dont have to worry about turning the 4g radio on/off manually.

I've been seeing, under heavy use, at minimum 8 hours of use consistently since I've been through a few cycles, including bump charging the first few cycles. Also, a few things that greatly helped me:
Read somewhere that the stock blockbuster app, even if it has never been opened, has a service that updates the movie catalog in the background. Run the app, update it, and in settings turn off movie catalog updates. After doing this my battery didn't drain nearly as fast while in my pocket. I can't verify that this actually helps, but it did for me. I disabled the 4G radio since I live in a 3G area as well.
I also run Green Power as of this morning. My phone has been running over 12 hour with 3:30 of that being actual usage and I'm at 68% remaining. I have it set to 1 minute on and 10 off for data while it is locked in my pocket.
Beyond that, GPS is disabled unless I need it. So is WiFi. Brightness is at about 30%, with a widget to bump it to full when I'm outside in sunlight. I also noticed a big jump when I disabled HTC sense Facebook updates, and used stock Facebook instead. Every time I went to contacts it would download that contacts Facebook updates, which is pointless and uses data constantly under normal usage.
Of course your mileage may vary, but this all gets me through the day under normal usage, and over a half day under heavy usage.

I am currently at 8.5 hours with 79% left on my battery. Stock Battery. If I didn't have to work tomorrow, and be able to make phone calls and such I'd leave my phone unplugged all night to see how long it can go.

nosympathy said:
I am currently at 8.5 hours with 79% left on my battery. Stock Battery. If I didn't have to work tomorrow, and be able to make phone calls and such I'd leave my phone unplugged all night to see how long it can go.
Click to expand...
Click to collapse
I'm assuming thats with Virus Rom as it says in your sig? If so, that makes me want to try it. I'm stock unrooted right now, haven't had time to invest in rooting the ADB original method yet, don't want to rush through it. When I do, I fully intend to try that rom out.

Bad Battery Life?

Hey Guys,
I remember the first two days I had my HOX, i thought the battery life was amazing but now on the 4th day it seems to be getting worse. I don't know if it has to do with the 1.82 RUU or other stuff i have running so I thought I ask.
With the screen off in sleep mode, i lose about 1% every 45-60 mins. The only things I have running are the default HTC sense weather, battery indicator and gmail widget. I just turned the wifi setting where it would shut down after the phone goes to sleep but that doesn't seem to be helping.
Overall today i used it for a few mins for txt and basically installed two apps and i'm down to 80% already since 7:00am. It did push maybe 5-6 emails to the phone while it was off.
Anyone else seeing this kind of battery life?
George

Is this your first smartphone? That is pretty decent battery life for the type of phone it is. You're getting much better battery life than a lot of people in these forums. This belongs in the battery life thread that is already started though.

My phone lasts from 8am to 4am daily, with ~2 hours of screen usage, 1-2hrs of calling, and wifi always on. By the end of the night, I have a minimum of 25% remaining, and sometimes even 40-45% or so.
The only time it dies quickly is when I'm in an area with no service, then the "cell standby" time shoots through the roof and kills the battery like no tomorrow.
Maybe you should download CPU spy and check to see if it's deep sleeping or not. If not, or if it spends too much time at higher frequencies, check out Better Battery Stats and look for wakelocks/other apps that are taking up too much usage time.
Option two you should probably try anyway, CPUSpy or not.

The battery stats are bogus... my phone was off the charger for 2 hours with the screen off and lost 18% and yet my stats say it was asleep... downloaded better battery stats and I'm finding the culprit today
Sent from my Xoom using xda premium

Battery has been horrendous lately. My GSII blew this thing out of the water in terms of battery life
Sent from my HTC One X using xda premium

I got betterbatterystats installed and it's saying my phone does NOT go into deep sleep mode.
In the past hour:
Deep sleep: 3 seconds
Awake time: 1 h 35 minutes
Screen on: 12 minutes
What would cause my phone to never sleep even though the screen was off for 1 hour and 20 minutes? ....

play2lose said:
I got betterbatterystats installed and it's saying my phone does NOT go into deep sleep mode.
In the past hour:
Deep sleep: 3 seconds
Awake time: 1 h 35 minutes
Screen on: 12 minutes
What would cause my phone to never sleep even though the screen was off for 1 hour and 20 minutes? ....
Click to expand...
Click to collapse
Im pretty sure its betterbatterystats. I uninstalled mine and battery life significantly improved.

Is there any way to test if my phone is sleeping without BBS?
I JUST installed BBS because my battery life has been pretty bad these past 2 days...can't make it to 3 hours screen on time (which is why I returned my galaxy note)

play2lose said:
I got betterbatterystats installed and it's saying my phone does NOT go into deep sleep mode.
In the past hour:
Deep sleep: 3 seconds
Awake time: 1 h 35 minutes
Screen on: 12 minutes
What would cause my phone to never sleep even though the screen was off for 1 hour and 20 minutes? ....
Click to expand...
Click to collapse
It mean ur phone even if the screen goes off there's process that make ur phone doesn't put to deep sleep (like app with auto update on e.g twitter or facebook and so on, depend on your app in the phone)
In BBS, you can check what things that make you phone didn't put to asleep. You can find it in Kernel wakeup/partial wakeup/other in BBS.
Sorry for my Bad English
Sent from my E15i using XDA

Uncheck better WiFi performance under WiFi> advanced settings
Sent from my HTC One X using xda premium

ChongoDroid said:
Uncheck better WiFi performance under WiFi> advanced settings
Sent from my HTC One X using xda premium
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Click to collapse
+1 for this. I got about 9 hours with this on. I'm now at 2 days and counting with it off.

WiFi performance will keep your phone awake. It's good for long downloads and such, usually when screen goes off it'll go into low performance mode and will crawl for downloads. It has a purpose, just remember to turn it off after
Sent from my HTC One X using xda premium

ChongoDroid said:
Uncheck better WiFi performance under WiFi> advanced settings
Sent from my HTC One X using xda premium
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I actually figured out that that was the problem causing no sleep. I was having WiFi problems which were fixed by this...but figured it may have an effect on the battery too. I switched it off and turned my phone screen off for 10 minutes...right away 10 minutes of deep sleep showed up.
Getting much better stand-by battery life...unfortunately I'm on my phone a lot (for texts, facebook, twitter, instagram, web browsing) and the screen on battery life still won't go past 3 hours! :/

play2lose said:
Is there any way to test if my phone is sleeping without BBS?
I JUST installed BBS because my battery life has been pretty bad these past 2 days...can't make it to 3 hours screen on time (which is why I returned my galaxy note)
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You can use CPU Spy...

There is a battery thread... But to the OP, that's pretty decent.
for me... 29% on for 14 hours and thirty minutes. Screen on 1:32. 1:47 for voice calls. And I did a lot of music streaming.

WiFi high performance is good when you need it, otherwise turn off because it prevents your phone from deep sleep. Fastboot should also be killed unless you need it. Fastboot is only useful if you turn your phone off and on often. No difference for rebooting. Some apps don't like it.
Sent from my Inspire 4G using XDA