yashsingh1/xdaforums huggingface dataset:
[T-Mobile Samsung Galaxy S II SGH-T989] gazmendf:
battery life how is in t989

battery life on this phone pls a like to know
[T-Mobile Samsung Galaxy S II SGH-T989] The_Biz:
I used my phone non stop last night from 8-3 and it still had 20% left. My sensation would've been dead before then.
[T-Mobile Samsung Galaxy S II SGH-T989] turbodroid:
Sure, and actually any battery app widget will show the battery level. The Nexus S stops charging at about 96%, so when you would unlpug the charger after it says 'charged', it immediately drops to 95-96%. I ended up buying a couple extra OEM batteries and a wall charger for them so I could pop in 100% charged batteries. Plus it made it so I never have to waste time charging my phone. When the battery dies, I swap batteries. Since this is the same 'family' of phones, I am real curious if the SGS2 does this also? Someone please confirm. Thanks!
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
If someone doesn't get to it before me I'll confirm soon. I want to let this bad boy run down to zero before charging again because it's draining a little bit faster than what I want.
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
http://xdaforums.com/showthread.php?t=1301609
[T-Mobile Samsung Galaxy S II SGH-T989] ryan562:
Battery life's been great
[T-Mobile Samsung Galaxy S II SGH-T989] AllGamer:
not just Nexus S, all Samsung phones are known to charge to 97% ish to prevent battery damage

it's a feature, it's not a bug

many new laptops coming out are doing the same thing
[T-Mobile Samsung Galaxy S II SGH-T989] AllGamer:
thanks

see, didn't i tell you, i knew this was gonna happen, that's why i stickied, and people still do it

anyways, merged.
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
I've read about this too, I thought they adjusted it on the software side though (so 100% displayed wasn't really 100% but actually more like the 96-97% of the actual charge on the battery, hence the calibration. I might be wrong though.
[T-Mobile Samsung Galaxy S II SGH-T989] pablo1215:
It does charge to a full 100% and gives that familiar notification that the battery is fully charged and to unplug it. It drops right to 98% after a few minutes though. Haven't really paid much attention to it just this once.
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
I can confirm that I have seen this as well.
[T-Mobile Samsung Galaxy S II SGH-T989] turbodroid:
Can someone pull their battery cover and post the OEM battery p/n? If I get this phone, I will most definitely order some extra batteries and a wall charger. I get 2-4hrs more battery life in my Nexus S charging them to a full 100% in the wall charger and will likely have similar results with this phone. Thanks
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
EB-L1D7IBA
[T-Mobile Samsung Galaxy S II SGH-T989] omgdz:
100% battery error

I had the 100% battery display for a day. I pulled my battery, replaced it, and it showed 34%, probably the correct reading. I'm delighted with the battery life, coming from EVO 4G.

Rooted yesterday: only problem was that I put SU on the sdcard. I should have put it in the internal memory. When I did that, it flashed with no errors.

HTH
[T-Mobile Samsung Galaxy S II SGH-T989] Locksmith81:
WHY?? Sacrafice Light speed data for a few hours more of slow data experience?

I use Juice Defender and in no way shape or form do I cripple my phone and it lasts a full day and I am a power user. I just charge my phone at night, dont get hung up when you see +24hr battery life. Just use your phone as intended.... if you want 2 day battery life just dont use your phone or use an LG P560 LOL!!!!
[T-Mobile Samsung Galaxy S II SGH-T989] AlphaKoi:
Yes...........but.................

I couldnt agree more. The goal should be to learn what works for you. Everyone has their own experience and uses the phone differently. You can learn/try some good tips from different people, but ultimately....its your own beast....invest the time learning how to care for it
[T-Mobile Samsung Galaxy S II SGH-T989] ixJay:
Question. For you guys that have long batgery life.. What is your screen brightness on? Thanks.
[T-Mobile Samsung Galaxy S II SGH-T989] le14:
What setting do you have it set on for Juice Defender?
[T-Mobile Samsung Galaxy S II SGH-T989] OrrinS1189:
BATTERY

I would like to PRETTY PLEASE get some specs from some of the people who are getting GOOD life. Good: >16hrs with normal/heavy use.

I'm getting 4-6 hours with NO USE (in pocket sleeping)

Here's my setup:

- 2nd phone exchange (I thought it was a defect)

- Rooted and flashed EB rom.

- Auto brightness.

- Only facebook sync every 4 hours.

- Launcher Pro

- After 100% it goes to 99% after 5 minutes... and goes down fast when sleeping.

- No programs running during sleep.

The battery monitor shows display above others pics... mine can average ~50% BUT even when the screen is mainly off?

So again any advice / specs from others who are doing better is appreciated!
[T-Mobile Samsung Galaxy S II SGH-T989] ixJay:
Background syncing off, Use Juice Defender, Dark screen wall paper, not so much widgets, use wifi when you can..
[T-Mobile Samsung Galaxy S II SGH-T989] AlphaKoi:
try SETCPU since you are rooted

make a profile for screenoff (i use 594-128)

that way when your phone sleeps the processor slows way down and doesnt use the battery as much

also if you meant when you sleep.....whenever you can.....use wi-fi and turn APN data off. That way the phone isnt searching for a cell tower constantly and using battery.

Hope this helps....PM questions
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
I definitely agree with the Setcpu advice AlphaKoi is giving. I've added it to the first post. The issues I've noticed with my phone are mainly with use. While screen is off I can get great battery life, I can leave it overnight not on a charger and not worry about my alarm not waking me up in the morning. The issue I do have, however, is when the phone is on and I am using it. It's draining like a mofo (which sucks :( ). I think I am going to head over to T-Mobile today or tomorrow (whenever I can get this unrooted and back to stock (I think I have to?)) to get a replacement phone and see if it's any better with active use.

I don't agree. Just because you are getting great battery life doesn't mean everyone has the same unit and should get the same results. While I don't think it's the battery (there have been numerous posts where some people's phones get 6 hours and others get much more with the same battery (yes I know they might not have same apps/settings). I think it might be hardware related so much as screen related. Again, I'm going to try to confirm this if I can get a replacement unit from T-Mobile (if anybody knows the best way to go about this under the argument that the battery is draining too fast please let me know). I don't mean to argue with you mettleh3d I'm just trying to confirm this is the case with multiple phones.

EDIT: Will this: http://xdaforums.com/showthread.php?t=1311229 put our phones back to a stock state good enough for returns/exchanges? It was taken from a rooted phone so does that mean it will still be rooted aka a no-go for returns?
[T-Mobile Samsung Galaxy S II SGH-T989] parusia:
If you did an nandroid backup before you rooted, just restore your nandroid backup and you will be set. But keep in mind that your OS will be stock but your recovery will be a custom recovery.:confused:
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
Yeah I'm worried that having CWM still installed on there might be an issue.
[T-Mobile Samsung Galaxy S II SGH-T989] OrrinS1189:
Haha

I exchanged my phone for a new one... The one I was exchanging had a custom rom on it and everything! They didn't notice! I hope I don't get some letter in the mail saying they are charging me!

But basically I used to have a MT4G and when using a sense rom I would only indeed get ~6hrs but on MIUI (the best in the world) I would get ~24hrs. I'm waiting for MIUI basically!
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
Did you see better battery life on the new unit? Why did you exchange it?
[T-Mobile Samsung Galaxy S II SGH-T989] Mustoura:
If you get a lamborghini and you keep your foot to the floor will you need to fill up more often ?

I'm pretty sure in what he is saying is use some of these when you need to .

Remember guys this device is more powerful than some of these laptops that are out there and that's in the palm of your hand. Try getting that type of life from a laptop see what happens.

My 2cents worth

Now that's battery drain.
[T-Mobile Samsung Galaxy S II SGH-T989] RowanDkWd:
hey guys after doing a bunch a research I stumbled upon some interesting information. a company that makes our batteries as well as batteries for other phones said that if you do a complete power cycle 3 or 4 times the battery will begin to reach its full potential. so I tried this out and did 3 full cycles 3 days in a row. doing this combined with juice defender has given me roughly 18 hours with normal use. so I would recommend getting juice defender and doing 3 or 4 power cycles and see if that helps you out.
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
EDIT: nevermind, re-read the post (I'm tired). I've done 3-4 cycles having owned the phone since release (last Wed.). Good info though
[T-Mobile Samsung Galaxy S II SGH-T989] mettleh3d:
No i wish, im still struggling to find the fine balance between apps widgets and not using juice defender. This morning i hit 70% in 2.5 hours on Eagle Blood.

My theory was related to testing your phones ability to retain its charge when on airplane mode - I'd gone more than 6 hours before dropping 1%.
[T-Mobile Samsung Galaxy S II SGH-T989] :
Are you in a 42mbs area the biggest drainer in cell phones are signal and mobile data connection. Kernels play a big part in it as well. But we don't have any yet.
[T-Mobile Samsung Galaxy S II SGH-T989] ralnee:
100% Battery Issue

So has anyone that has the 100% battery issue, returned their phone and that fixed their problem? :confused:

I've tried various ways to get rid of this problem (I know I could reboot the phone whenever this is a problem, but I paid full price for this phone and it should work properly!!!!) :mad:

If the answer is to return the phone, does anyone have the stock rom (and instructions). I've rooted the phone to do a full backup and don't want any problems when I return it? :D

Thanks
[T-Mobile Samsung Galaxy S II SGH-T989] mettleh3d:
Yea i've 4 bars at work avg about 10 mbps. Battery killer
[T-Mobile Samsung Galaxy S II SGH-T989] OrrinS1189:
4G not draining...

Something about this 4G being the culprit doesn't add up.

For those of us having battery issues (less than 6 hours with lite use) why would it be 4G when the battery use bars show display... DISPLAY as the item using the most power. My display usage is never below 50% of battery usage and that's with dim light and sleep all the time!
[T-Mobile Samsung Galaxy S II SGH-T989] KaneHusky:
I've power cycled my battery a couple of times and the night before last I left the phone unplugged and in silent mode (WiFi and vibrate were on and GPS was off) and turned off the display over night. Overnight it only lost about 8% of the battery and during that battery cycle, I got roughly 18 hours. Last night I did the exact same thing (though I did disable vibrate while leaving WiFi on and GPS off) and it was down to 30% when I woke up 6 hours later! I noticed that while the display was off all night, the phone was awake at even intervals, whereas the night before it was never awake. I wonder what caused the phone to wake up at those intervals? It can't be auto-sync because that has always been enabled. What causes the phone to be awake vs. asleep? Is there a way to force it to stay asleep over night?

Edit: I also have power saving mode turned off.

Edit 2: I believe I may have discovered the culprit. When I rebooted my phone, NoLED service was apparently auto-started even though auto-start on boot was unchecked. Lame!
[T-Mobile Samsung Galaxy S II SGH-T989] big hutch:
roger that captain
[T-Mobile Samsung Galaxy S II SGH-T989] foreverloco:
Tried to download juicedefender but says that my device is not compatible... I'm rooted running stock with go launcher and bloat frozen... Any ideas why it would say this? :confused:
[T-Mobile Samsung Galaxy S II SGH-T989] Mustoura:
Its not the display. The display will naturally be higher as it is the one thing that will come on when you use the phone. The biggest battery eater is bad reception regardless if its 4g,3g. If your signal strength is on the weak side you will have poor battery as the phone will attempt to boost it self to get optimal signal .
[T-Mobile Samsung Galaxy S II SGH-T989] OrrinS1189:
MIUI

Well then it's the software... I used to own a MyTouch 4G and on sense/stock roms the display was ~60% and on MIUI and CM7 it was average with other factors like system and cell standby. So, we need a custom rom/system to really be able to test it. I personally can't wait for MIUI cause of it's history of great battery life!
[T-Mobile Samsung Galaxy S II SGH-T989] Mustoura:
You hit the nail on the head.

I was experiencing same issues low battery random reboots there was a official update reboots stopped battery drain was still there .

Rooted the phone everything is good i will get 18 to 38 hrs depending on my usage.

But i do get battery drain when i am in low signal strength areas.
[T-Mobile Samsung Galaxy S II SGH-T989] mettleh3d:
Good research thanks.
[T-Mobile Samsung Galaxy S II SGH-T989] TheSeanTeam:
Did you use a LCD Density changing program? Lots of times this messes up the Market.
[T-Mobile Samsung Galaxy S II SGH-T989] foreverloco:
Thanks for the help I did have it at 200 put it back to 240 and its letting me download it now! :)
[T-Mobile Samsung Galaxy S II SGH-T989] OrrinS1189:
Problems?

Extrapolated I will get about 10 hours but this doesn't seem right to me having the display up so high when brightness is so low!

NOTE: The phone was asleep most of this time... on other days when it's been asleep for longer it's been even worse life! I can't even stay at 100% level for more than 5 minutes after full.
[T-Mobile Samsung Galaxy S II SGH-T989] mettleh3d:
Dont worry man, sounds like mine and many others. 5 mins sounds long lol.
[T-Mobile Samsung Galaxy S II SGH-T989] azsl1326:
I just started having this issue 2 days ago. I called TMobile today to request a new battery. At this time, they say they are looking into it as they have several other reports and are waiting to hear back from Samsung. They wouldn't send me a new battery just yet.

If you are having this issue as well, I encourage you to call in and let them know, so that they can't get this issue resolved from Samsung. The more that call the more they will be made aware that it's a real issue.

Thanks, in advance.
[T-Mobile Samsung Galaxy S II SGH-T989] LORD_VOLDEMORTT:
Excellent Battery

I am getting a very good battery life.I am not a heavy user but some where in between low - medium usage.I had some issues in the beginning, but with little tweaks its easily holding up for a day.

Still running at 36%
[T-Mobile Samsung Galaxy S II SGH-T989] OrrinS1189:
That's what I need...

You see, how do you get display to be so low? That's my problem? I literally have it at 0% AND off in my pocket! In other roms on other phones I never had this problem.
[T-Mobile Samsung Galaxy S II SGH-T989] MMakoto:
did you set the brightness to 0 or auto? i just encountered my first battery level error today, it keeps show 100%, but on the indicator notification bar it shows normal. my battery just went down to 25% from 90% this morning from 8:30am to 4:30pm, i've only made a few short calls and text messages, didn't even browse the net or play any games.
[T-Mobile Samsung Galaxy S II SGH-T989] LORD_VOLDEMORTT:
Hi

I am using the power wideget which i use to control the brightness as needed. If indoor i just set it to 0% and I am on wifi most of the times. Outdoor I would switch off my wifi and increase the brightness to 50% during usage or when needed.

i dont have any more wideget other than battery wideget and power widget. A/c sync for gmail only. running Juice defender.

Initially had the similar battery drain issue, the battery was draining in 10 hrs for medium usage, but did the following not sure which one was effective though. Please try if anything works out for you

1) changed to an Dark back ground. Perviously had an samsung default wall paper for the gal tab 10.1

2) Installed the juice defender with the default options

3) Installed the power wideget on my home screen. Enabled the power saving mode

4) Switching off the wifi when out of my home network and adjusting the brightness of the screen as needed using the power widget

5) reduced the auto synch only for gmail.

I am running the internet radio for almost nonstop for the last 1.5 hrs and now i am running at 20% almost 1.5 days of low to medium usage.

Please try if any of the above works for you. i am attaching my home and battery usage screen shots.
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
So I went in today to try to exchange regarding the battery. The guy started to tell me about how it's a smarphone so it will drain faster. I said yes I know, I disabled location services and sync and it still isn't doing well at all compared to people I know that have the same device. He gave me a somewhat blank stare and proceeded to take my phone and turn on the powersaving mode and told me "Well it has a 1.5ghz processor so it will not last as long as other phones bla bla bla". Overall pretty upset with this guy, he finally told me to go to the T-Mobile store I got it from and talk to them. Fairly useless. I wish the guys that worked at these places at least knew more about the merchandise they are selling. :mad:
[T-Mobile Samsung Galaxy S II SGH-T989] azsl1326:
They know nothing. Surprised they knew the speed of the processor!
[T-Mobile Samsung Galaxy S II SGH-T989] mastaglaus:
People probably don't care, but here are my latest results with no power saving apps and not using the built in power saver. Granted I didn't have a whole lot of usage. Also, not rooted. This screen shot was taken when I had 8% battery left.
[T-Mobile Samsung Galaxy S II SGH-T989] mettleh3d:
4g consistently? Damn

And well you don't expect tmo reps to be trolling xda now.
[T-Mobile Samsung Galaxy S II SGH-T989] Enzopreme:
you can change the font if your not rooted??

---------- Post added at 04:24 AM ---------- Previous post was at 04:22 AM ----------

Also, does anyone know of any other samsung phones that have compatible batteries for the Hercules? Im sure the mAh won't be the same but it would be nice to grab an extra battery, and radioshack has a lot of batteries for samsung phones, including the gs II, but not the hercules variant.
[T-Mobile Samsung Galaxy S II SGH-T989] mettleh3d:
It's in Settings > Display
[T-Mobile Samsung Galaxy S II SGH-T989] ralnee:
100% battery Problem

Okay.. I finally have some answers. I registered my phone on the Samsung site, and got into a live chat with a rep. I explained to the rep (as best as I could) that the battery usage was not updating once it reached 100%, without a reboot. After going back and forth (did you try A, yes I did, did you try B, yes I did...), she finally gave the the number of their "dedicated Galaxy S phones voice support team at 1-877-EZ2GALAXY (1-877-392-4252)".

I called the dedicated team and was finally told that this is a known HANDSET ISSUE, and to replace the phone. :eek:

I'm performing a full backup using Titanium Backup as I type this, then I'm going to do a NANDROID recovery (I think) and then reset the phone to factory settings. Then I'll replace the phone at the tmobile store I purchased it from.
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
I've added this to the front page!

Also, I think you're going to want to do this to bring it all the way back to stock after you are done backing everything up: http://xdaforums.com/showthread.php?t=1319830

Make sure you get that nandroid backup onto an external card!
[T-Mobile Samsung Galaxy S II SGH-T989] ralnee:
Thanks for the info on bring the phone back to stock. Do you know where nandroid put its backup?
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
Do you have an external SD card in the phone?
[T-Mobile Samsung Galaxy S II SGH-T989] ralnee:
yup...Sure do
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
It should be located on the root of the SD card. You could always plug it into the computer and check. It'll be a file with a date in the name.
[T-Mobile Samsung Galaxy S II SGH-T989] ralnee:
I'm using the Astro file manager and I don't see any file with a date in "/mnt/sdcard". I did find a directory in "/sdcard/external_sd" that has an "update" directory and and "update" file from the date I rooted the phone. The full path would be "/sdcard/external_sd/8710c35589742792347/update/update".

I going to put the sdcard in my pc and see whats in the root directory.
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
Do that. I unfortunately left my microsd card at home today so I can't check. I'm sure someone else can chime in though.
[T-Mobile Samsung Galaxy S II SGH-T989] ralnee:
I think I found the nandroid backup directory. Its located on the sdcard in the "\clockworkmod\backup\2011-10-21.20.08.00". Now I just have to find this once the sdcard is back in the phone......:rolleyes:
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
If I remember correctly it should be under externalsd
[T-Mobile Samsung Galaxy S II SGH-T989] ralnee:
Looks good. Also copying TitaniumBackup backup directory to the externalsd directory as well.
[T-Mobile Samsung Galaxy S II SGH-T989] android4sunny:
Guess i just crossed the 14 day exchange period.......damn, so i think any future update will not resolve this issue....i'll have to live with it.:mad:
[T-Mobile Samsung Galaxy S II SGH-T989] mziol:
If you got it release date, you would still have today to exchange it...
[T-Mobile Samsung Galaxy S II SGH-T989] azsl1326:
So, after reading this post, I called TMobile again today to inquire about this issue as I have had it happen the last three days. Yesterday, they were of no help, other than their support team is looking into it. Today, basically the same thing, but they suggested I clear the cache. So, I rebooted into recovery, cleared the cache, cleared delvik-cache, wiped battery stats. I then charged my phone to 100% and calibrated the battery using battery calibration app from the market (probably redundant from cwr - but what the hell). I then charged the phone completely. After reaching 100%, the battery now seems to be displaying/updating the correct battery percentages.

I am anxious to see if this holds up again tonight after a full charge. I don't particularly want to exchange it as my screen is perfect.

Hope this helps.
[T-Mobile Samsung Galaxy S II SGH-T989] android4sunny:
Gr8 mate.....do let us know if this works fine for you....probably you can let us know all the steps u took with the app u used and we can try it too.
[T-Mobile Samsung Galaxy S II SGH-T989] camf3xu:
your looking for ur nand backup correct??

i believe ur looking on the internal memory.

on ur sd card its clockworkmod/backup/2011-10-26.10.22.43 (date/time is my nand backup yours will b slightly different)
[T-Mobile Samsung Galaxy S II SGH-T989] MMakoto:
man you guys are scaring me with these problems, but nonetheless i called tmo retention and requested them to send me a replacement phone. i did encounter the battery level error and really poor battery life, and a little bit of the vertical lines too, and i don't wanna be stuck with a phone that i'll be complaining for the next 2yrs or so. fingers crossed on a better phone on its way.
[T-Mobile Samsung Galaxy S II SGH-T989] ralnee:
Thanks. I found the backup and restored it. I'm going to take the phone back tomorrow.

---------- Post added at 09:53 PM ---------- Previous post was at 09:48 PM ----------

I didn't try to clear either cache. I would be very interested in finding out if this fixes the 100% battery problem.