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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.
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icy56 said:
Thanks for helping, but yeah I have those disabled already.
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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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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?
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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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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.
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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%.
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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.
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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...
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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.
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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.
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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.
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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.
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**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
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Captivate worst battery life nightmare

I have serendipity rom and I unplugged my phone at 9.30am this morning with fully charged now its 4pm I have 11% left? And I went on about phone-battery it said. Display 93% , phone idle 4% , voice calls 3% and I have my brightness to the lowest. Can anyone suggest why it dies so quick?
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How much screen time?
Sent from my Samsung Captivate using Tapatalk

Unplugged at 8am and now it's 4pm and I'm at 51%. Rebooted once so the battery numbers are not correct.

More information would be helpful.
What widgets do you use?
What apps remain open in the background?
How much screen time was there?
Are you in a low-signal area?
Do you leave BT/Wifi/GPS on?
I usually have 40-70% at the end of my workday (5pm) with pretty decent usage - I unplug at 11pm.

qwertyaas said:
More information would be helpful.
What widgets do you use?
What apps remain open in the background?
How much screen time was there?
Are you in a low-signal area?
Do you leave BT/Wifi/GPS on?
I usually have 40-70% at the end of my workday (5pm) with pretty decent usage - I unplug at 11pm.
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Only using the power control widget.
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For what it's worth----my wife and I each have a captivate and I have two spare "after market" batteries. I've never checked my wife's battery usage since she rarely does anything with it besides taking/receiving maybe 6-10 calls a day. She charges it every night and it's never run completely down so I haven't changed the battery. In my case, the battery that came with the unit is usually down to 20-30% after eight hours. One of the after-market batteries won't make it for more than 6 hours. The second after-market battery usually has 50-60% remaining at the end of the day. I usually replace the batteries every night and charge the replaced battery with a wall charger over night. I know there are lots of variables involved, but there is no doubt in my mind that there is tremendous variation between these three batteries. I'm running on andromeda 1.2 and on weekends I disable most everything except the phone and, on the best battery, the captivate will idle along for at least 48 hours. I also suspect there may be as much, or more, variability between ROMs.

Where can I get those batteries? Ya I just got the phone 2 days ago over iphone 4
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Got 'em on ebay. I think they are of Chinese origin but I just took pot luck because I wanted a spare in my brief case for emergency use.

FishDoc said:
Got 'em on ebay. I think they are of Chinese origin but I just took pot luck because I wanted a spare in my brief case for emergency use.
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Is it possible to pm the link? Cause im close to returning it
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rockingx10 said:
Is it possible to pm the link? Cause im close to returning it
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Turn off gps, wifi, task killers, etc.
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@fishdoc were the two after market batteries the same and from the same seller on ebay? Or were they different batteries?
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Check services too... I found out that Win Amp was using all my battery trying to do wifi sync when I didn't ever use that function.
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Get Juice Defender. It has extended my battery life from 5-7 hours to 24+ hours. It disables your radios while the phone is off, but turns them back on ever 15 or 30 minutes to get data pushed to all of your active services.

Can we go with the obvious and have you calibrate your battery first?

Is my phone or battery crazy?

Guys, I need some help. My four days old sensation is acting crazy. After every charge, the battery level does not change for some time. Like, today, took phone of the charger at 8 am and I used it for browsing the net for like 2 hours. The first time it moved was at like 1pm to 97%. After this, the battery started to go down somewhat . When I got home at 6pm, it was at 65%.
As I'm typing this right now, I took the phone off the charger at 79% , been using it for an hour straight , yet still shows 79%. Is this normal behavior for this phone? Anyone else have the same issue? Should I exchange this phone with another new one at walmart?
Sent from my HTC Sensation 4G using XDA Premium App

mike2518 said:
Guys, I need some help. My four days old sensation is acting crazy. After every charge, the battery level does not change for some time. Like, today, took phone of the charger at 8 am and I used it for browsing the net for like 2 hours. The first time it moved was at like 1pm to 97%. After this, the battery started to go down somewhat . When I got home at 6pm, it was at 65%.
As I'm typing this right now, I took the phone off the charger at 79% , been using it for an hour straight , yet still shows 79%. Is this normal behavior for this phone? Anyone else have the same issue? Should I exchange this phone with another new one at walmart?
Sent from my HTC Sensation 4G using XDA Premium App
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So to sum up... My battery is amazing!!! Should I trade it in and hope for one that dies faster?

mpjohns3 said:
So to sum up... My battery is amazing!!! Should I trade it in and hope for one that dies faster?
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Lol, I get your point, but my main concern is that is this normal? Shouldn't it go down gradually from the beginning? Like just right now, its been off the charger for an hour and half, and just now it has moved for the first time from 79 to 77. And I've been using it non-stop during that time.
Sent from my HTC Sensation 4G using XDA Premium App

Mine stays at a hundred for longer than usual but nothing like this.... I want this problem.
Sent from my HTC Sensation 4G using XDA Premium App

I think it's a problem to do with the software and battery stats. Other people have reported this issue (there was a thread about it sometime ago, if I can I'll find it). Maybe when we get root and clear the battery stats through Recovery we'll see it go back to normal. Or maybe a ROM such as CM7 will solve it.
Or maybe you do just have an amazing battery

It seems i'm having the same issue. Battery is stuck at 100 and battery voltage shown is actually rising.
When i charged my Sensation for the first time, it ended with completely discharged and overheated battery. Phone told me that i should have used only original charger and then restarted. The charger included looked original to me
I charged my phone from PC USB port and it worked until now. I just charged again with the included charger and now it's stuck at 100.
I don't know what to do now, my Sensation doesn't have any of the many other problems reported here, so i'm not sure i really want to get a replacement. Can this be a problem with the battery or is it phone hardware? I can't believe it's software...

Battery not fully charging!

I just got my ns4g 2days ago and it wont seem to charge past 95%...anyone know why??...or how to fix this issue??..oh n i cant sync my facebook contacts!
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That's not an issue. Its intended to increase the longevity of the battery by preventing over charging.

Lol I asked the same question before. Its just designed that way to prolong the battery life. There's a few kernels that allow you to charge to 100%
Fb thing... Idk lol
Sent from my CM7.1/*Apocalypse-Talon* v3.2.1 NS4G

if you charge it the rest of the way with the screen on, itll charge to 100%. or if you charge it with your wireless hotspot enabled(wireless tether) itll charge to 100%.

Ok thanks..my battery life sucks though...barely make it threw n 8hr work day..n im only texting
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Skyrocket Battery - Charging Tips

I am receiving a new phone battery in the mail for my i727 since my old one won't last at all.
Do you guys have any tips for me on how to charge my battery so that I keep my charge for the longest time possible without damaging or ruining the battery in any way?

markrayski9 said:
I am receiving a new phone battery in the mail for my i727 since my old one won't last at all.
Do you guys have any tips for me on how to charge my battery so that I keep my charge for the longest time possible without damaging or ruining the battery in any way?
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Define 'won't last at all'? How much time do you get on the battery now? It rarely has anything to do with charging, unless you use some crappy charger that blasts high amperage current at it. Battery drain is almost always because of either a wakelock preventing deep sleep, or an app running in the background chewing up CPU, and thus battery. For me there were 3 culprits, 1) some chargers (specifically Apple compatible ones) cause a wakelock on 'vm_bus_present'. If you see this, reboot after charging to clear it and get a different charger. 2) Corrupt media data that causes the media scanning process to continually spin CPU. Clear data and cache for the media app. 3) Bluetooth crashes, and the you get a 'bluesleep' wakelock. Reboot until Bluetooth stops crashing, usually for me it only takes one.
CPU Spy and Better Battery Stats are your friends. See the Battery pinned topic, this is covered in much more detail there.

I'm not sure it matters about my old one.
I just need to know how to charge my new one. Everyone talks about how they charge their battery, and I want to hear how.
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markrayski9 said:
I'm not sure it matters about my old one.
I just need to know how to charge my new one. Everyone talks about how they charge their battery, and I want to hear how.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
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I plug in my phone at night, and I unplug it in the morning. I don't think it gets any more complicated than that.

markrayski9 said:
I'm not sure it matters about my old one.
I just need to know how to charge my new one. Everyone talks about how they charge their battery, and I want to hear how.
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You plug it in and when it says battery full you unplug the cord.
Sent from my HTC One using Tapatalk 4

Nothing mysterious about charging a phone. Seems like there were some complex charging rituals way back when but they have since been proven BS. That being said, If you normally run your phone down by mid day because you play with it all morning no fancy charging ritual is going to help you.