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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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?
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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?
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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 life

What is your standby drain? I'm looking @ 3.5%/hr.

hah2110 said:
What is your standby drain? I'm looking @ 3.5%/hr.
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Mine is more like 7%/hr, which is totally unacceptable, I have all sync turned off, except exchange... with my HD2 running Froyo, I could do 2%/hr with the same settings.... I am still trying to figure out what's draining my battery...
I have also noticed high data usage.. I've tracked it down to T-mobile's AppPack. I've never used the program but it's constantly draining away my data... Is there a way for me to remove the app or disable it?
Thanks!

Get Watchdog from the Amazon appstore to find out what's draining your battery. I believe it costs, but it is a thoroughly useful app
Don't think we can remove carrier apps until we have root...that said, you could try adb pull, but I'm not sure whether it will have any effect. May need root for ab pull, in which case we can't get rid of carrier apps :/ sorry

hah2110 said:
What is your standby drain? I'm looking @ 3.5%/hr.
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2-3%
Sent from my HTC Sensation 4g with extreme prejudice

On my hd2, it was like 1% on idle on android, here it seems to be more , like 3-4% on idle.
Sent from my HTC Sensation 4G using XDA Premium App

its funny how some people report 0% battery drain in 9 hours and other get 3-4% drain per hour.....
please post how many charge cycles you went through, its important.
I am personally using HD2 and battery live is amazing. and its only 1250

this has the best battery life ive ever saw. I'm in 0ma all the time the phone yesterday lasted from 530 am til 7 pm at night with a lot of text and playing games like homerunbattle 3d. If you play that game you know how much of a battery hog it is. Best battery life. Battery was soo good i barely charged it went to work with a 40% battery and it easily made it through a day with moderate texting all day!!

Gotta say... coming from a TBolt this thing is like sex in a tin can.
Idle is 1-2%/hr probably. I would get 10%+ on my TBolt at times... if not more. It was bad.

kolyan said:
its funny how some people report 0% battery drain in 9 hours and other get 3-4% drain per hour.....
please post how many charge cycles you went through, its important.
I am personally using HD2 and battery live is amazing. and its only 1250
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Click to collapse
I did three full charge/discharges .
I lose about 25% in 9 hours at work mostly idle/ minimal use.
Sent from my HTC Sensation 4g with extreme prejudice

Darn it...
Seems like I'm the only person with excessive battery drain...at 7%/hr....
Just wondering, when you go into battery stats and extend the graph, does your phone stay awake when the screen is off?...
Mine seems to be awake all the time even though the screen is off.
I got Watchdog yesterday, I didn't notice any apps with high CPU usage...

Me too.. I lost about 8%/hour in 2g standby mode... Totally unacceptable comparing to my previous galaxy s...
Hope next FW update will improve it ..
Sent from my HTC Sensation Z710e using XDA App

today is the first time I'm having issues. Only 4 hours since charge & down to 40%. The Awake time shows as 99% of Up Time. Is that normal??? Also, anytime I look at the task manager it shows wifi calling running even though I have it shut off

I've got an Asian model sensation (ie. 3g and not 4G model ) and I find my battery isn't really calibrated properly so its hard to comment on average percentage drop per hour. I've recharged my battery 3 times already and i find the battery stays at 100 percent for around 30 minutes of constant on web browsing, then it will drop at a rate of 10 percent every half an hour with constant use and will fluctuate.
To report on a rough usage breakdown, with all background syncing disabled, I managed to get 10 hours standby before my phone dropped below 10 percent. This was with 5 hours of screen being constantly on doing mainly web browsing on 3g and one 15 minute phone call using my wireless Bluetooth handsfree.
I can report the battery life with constant usage is better than what i got with ny hd2. Running android ROM, it used to do around 3 hours of constant web browsing before the battery will fall under 15 percent. In standby my hd2 used to drop around 1% per hour, which was quite excellent.

xnifex said:
today is the first time I'm having issues. Only 4 hours since charge & down to 40%. The Awake time shows as 99% of Up Time. Is that normal??? Also, anytime I look at the task manager it shows wifi calling running even though I have it shut off
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Click to collapse
Those are the stuff I'm talking about, it appears that one of the settings and/or app is constantly using the processor, which causes the phone to stay awake even when the screen is off... I just haven't figured out which app is causing the problem.. I am suspecting it is one of the Tmo apps.

I'm looking at a full battery life of 11 hours, 49 minutes with moderate usage (some calls, decent amount of texting, some games). I use the app/widget "Battery Left" to do its own independent assessment of battery usage and life.
So far the battery reminds me of my early days with my Nexus One -- before I had it rooted and optimized and undervolted. Once rooted and optimized, I saw a good 50% increase (at least in battery life).
If you'd like some relief right now (before we get it rooted), I recommend Juice Defender on the market. It turns off data (among other things) every now and then to save battery, and with this I can squeeze out 18+ hours with moderate usage.

how are you checking the percentage? when I looked in the settings menu, all I see is a long green battery bar, no actual numbers. Or are you all estimating from that?
I don't monitor my standby time, but I'm sitting at what looks like 40% after 13 hours of fairly moderate usage during the day, I'm impressed.

Ive been getting about 9 hours out of a full charge. Had to put my phone on the charger today at around 4 o clock because it was dead. I dont have much more info other than that. I will keep an eye on my processes over the next few days. I have only 3-4 cycles on the battery though.

To check the percentage of the battery life u have to download some battery widget in the market.. I.e smart battery monitor or battery percentage s.th like that...
Sent from my HTC Sensation Z710e using XDA App

You can also check battery level by opening Phone and dialing *#*#4636#*#* and then select Battery information.

I'm using Juice Defender and I have to say it really does the job : my Sensation lasts More than one day and a half (30min calling a day, texting, Android Market, Angry Birds...). Without the app running it would last a day (Angry Birds drains...).
Juice Defender says it is increasing battery to 1,53% and it is very close from reality.
I've been owning the phone from 24th of May.

Losing 20%/Hour While Constantly Playing With Phone Normal?

I'd like to hear other folks experience on this. My 1 week old sensation, after numerous experiments confirms this, loses 20% charge per hour when I am continuously using it to browse the internet on 4g. Light setting is set at auto and was at its dimmest level throughout this experiment. I did play about 7 minutes worth of video on youtube during this time. All radios other than 4g were off. Gathering from this, the phone would last for 5 hours straight using browsing and/or playing with it. Is that a good battery life or should I exchange my unit?

Mine just went down from 100% to 75% in 45 min (Full Brightness). :/

secano said:
Mine just went down from 100% to 75% in 45 min (Full Brightness). :/
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Click to collapse
Not good man. Btw , what kind of activity were you doing on it? I thought mines at 20%/hour was bad.

Killed my battery in 3.5 hrs today (browsing, Fruit Ninja, etc). 20% per hour is good. You can't expect much more at this point until custom kernels start rolling in.

borodin1 said:
Killed my battery in 3.5 hrs today (browsing, Fruit Ninja, etc). 20% per hour is good. You can't expect much more at this point until custom kernels start rolling in.
Click to expand...
Click to collapse
Yeah, I was getting annoyed at how fast my battery died but I was forgetting there is no UV, there is no Smartass governor, etc

Flippy125 said:
Yeah, I was getting annoyed at how fast my battery died but I was forgetting there is no UV, there is no Smartass governor, etc
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Click to collapse
Good point fellows, I'll keep that in kind when looking at my battery life. Just hope we get unlocked bootloader soon so we can get optimized roms to work with.
Sent from my HTC Sensation 4G using XDA Premium App

I was browsing while watching a boring movie with someone for over an hour yesterday. The battery dropped by a little less than that amount. maybe around 15%. That isn't that bad.
I am using Opera Mobile as my main web browser.

I get about 10% for 45 minutes of non stop usage with multiple apps, though no multi tasking.
I get about 25% for 40 minutes of internet use.
Out of the box (when i got it) dead in about an hour of use. It was at roughly 40%.
It might have do with something, though my phone died when it said 1%, but i used BattStatt to see my percent, if that has an affect(affect, effect, you know what i mean).

yesterday night my battery was at 10% wen i went to sleep nd today morning i found my phone on 8% .
that means 2% for a night .. preety impressive ..

So this is normal? I read that you should be able to get at least a day of use out of your phone. After 4 days of charging then dischargeing I cannot get past 8 hours even with having data turned off. Should I return my phone and get a new one or should I hope that it gets better?
Sent from my HTC Sensation 4G using Tapatalk

I got 20 hours (25% left) with heavy heavy usage and I hadn't fully charged it. Of course my screen isn't on blast and when I first get my HTC phones I let the batteries die all the way then charge it fully without bothering the phone. Seems to work in my favor.
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