yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S II SGH-I777] sssjk:
No, I'm not using any apps at all. Maybe I'm just lucky. I have everything set to off unless I'm using wi-fi (at home) or bluetooth (in the car).

The phone is completely stock with no apps to help manage battery stats.

I wish I could tell you my secret but truth is I don't have any.

The only thing I can think of is that it was the batteries' first full charge, so maybe it lasted longer on its maiden voyage. I have no science to back that up however.
[AT&T Samsung Galaxy S II SGH-I777] sweetboy02125:
Yup, I'm with you on this. I tried Unname, S8 and another new h... Rom, i felt like the stock always have best battery (of course after removed all of bloatware craps)

Don't get me wrong, using Unname now, but just my feeling.

However, we need all other tastes anyway. Thanks all the devs.
[AT&T Samsung Galaxy S II SGH-I777] MWilkenson:
I just got unnamed today so we'll see how it goes...hopefully ill get a bit better usage
[AT&T Samsung Galaxy S II SGH-I777] rav4kar:
Adding one more chart showing battery usage for today..
[AT&T Samsung Galaxy S II SGH-I777] rlarsen462:
Interesting tidbit, 6 hour flight to Trinidad I had the phone on airplane mode and it was in deep sleep for 94% of the trip. So whatever is causing the problem is shut down by airplane mode, that much is clear.

Since I got off the plane I've burned 40% in like 2 hours...granted I have been trying to use the damn thing the whole time because the 2G network here is utter ****.
[AT&T Samsung Galaxy S II SGH-I777] iqak:
Does this Count as Crazy Good?

UnNamed 1.04 Rom, + Custom Juice Defender

100% to 5%
[AT&T Samsung Galaxy S II SGH-I777] naturefreak85:
I consider myself a heavy user.....and I must be because with the stats that you guys have, I'm lucky to get past 9 hours of use unless it's at night and I leave my phone unplugged.

I have uploaded 2 sets of screenshots to show. The first set is from when I was stock. 5 hours drains down nearly 40% of my battery (this was actually on my first GSII I did an exchange and even picked up a separate battery) That includes 40 minutes of Screen on time and 1.5 hours of music.

The Second set is from just last night on my new GSII. Popped in a fresh battery around 6PM yesterday, and used it like I normally would. 2 hours of screen on time, then pretty much the slow decent is overnight. The phone was in deep sleep most of the time and nothing really stands out as killing the battery. Something was keeping the phone awake at parts of the night yes, I suspect that's KIK messenger which has been uninstalled. It was the only thing with high usage, but the wake time was more than the 40 minutes that KIK was using and nothing else came close in wake time. If anyone has suggestions besides BBS as to what is keeping my phone awake (because BBS isn't helping too much clearly) I'll be glad to take them.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
It's known that BBS won't show a lot of stuff.

There's a Known Battery Drainers thread in this same forum section that includes some better data collection methods - hint, 95% of people will be able to provide better data without a single screenshot.
[AT&T Samsung Galaxy S II SGH-I777] naturefreak85:
Will do as soon as I end my day. Irksome to try to track it down. I notice that my phone is nearly always at 1200 MHz whenever the screen is on.
[AT&T Samsung Galaxy S II SGH-I777] jbsg02:
I switched back to stock from unnamed and my battery life is back to great. I know a lot of people were getting better battery life with unnamed, but my phones was draining a lot with the screen off. Right now I am at 1 day 2 hours on battery and am at 52%!
[AT&T Samsung Galaxy S II SGH-I777] tboooe:
I get around .75% drain per hour using UnNamed. I still see a lot of partial wakelocks so I think there is room for improvement. Here is a shot of my battery use after almost 15 hours:
[AT&T Samsung Galaxy S II SGH-I777] Blaze9:
Can you post a usage screen? Display usage would be great. I would -love- to know exactly what you're doing cause that battery life is just outrageous!
[AT&T Samsung Galaxy S II SGH-I777] roadrash7:
Serendip Rom. Data always on weather wiget and gmail. Just put in airplane mode while sleeping didn't move 1% all night.

13% juice left.

Can unamed beat that...I keep hearing its the best for batt life. But this is impressive too
[AT&T Samsung Galaxy S II SGH-I777] Tenkie:
That battery life is pretty impressive. I achieve around 5 hrs of screen on time with heavy usage on my 3500 mah battery.

Running hellraised VillainROM 3.0
[AT&T Samsung Galaxy S II SGH-I777] Misterjunky:
Battery Consumption

I just don't understand how so many people can say that "My battery is great" or

complaining that "My battery only lasts xx amount of hours" with a straight face

because just like any other battery operated electronic device, our phone's battery

consumption is a lot more variable than the weather!

Without conducting tests like starting with a fully charged battery keeping the screen

on until the phone goes dead or playing non-stop music until the battery dies there is

no real accurate way to test battery life unless it's done under labratory conditions.

Otherwise all we are doing when talking about battery life is a big guessing game!

Even little things like the ambient room temperature and the amount of moisture in the

air have an effect on battery life in all electronic devices even if they are powered off.
[AT&T Samsung Galaxy S II SGH-I777] K Rich:
screen doesnt look like its been on much....:rolleyes:
[AT&T Samsung Galaxy S II SGH-I777] Alucardis666:
my battery generally lasts between 12 -16 hrs a day pending use. which is more than fine for me.
[AT&T Samsung Galaxy S II SGH-I777] sssjk:
See my stats from the Stock rom... 2 days+. I'm still getting that kind of life from stock rom.

http://xdaforums.com/showpost.php?p=18936412&postcount=54
[AT&T Samsung Galaxy S II SGH-I777] CollegeProfesor:
My battery drained 50% in 3.5-4 hours. I have SetCPU on 800-200 and 500-200 with <50% battery.

I undervolted my phone as well. Any ideas?
[AT&T Samsung Galaxy S II SGH-I777] joeybear23:
we will probably need a little more info than that...

What apps were you running?
[AT&T Samsung Galaxy S II SGH-I777] CollegeProfesor:
At that moment, nothing that I know of, there were things in the background most likely, but I'm not aware of what they were. I had just gotten done flashing MIUI though
[AT&T Samsung Galaxy S II SGH-I777] mickey4mice:
Maybe not crazy good, but my S2 on UnNamed 1.31 Entropy's 1113 Kernel is giving me exceptional battery life. 99% after 6 hours on idle, 95% after 11 hours and 90% after 14 hours with some light usage. Wifi is off, BT on for several minutes (in transfer mode), background sync is on for Gmail, contacts, calender and 3 short calls.
[AT&T Samsung Galaxy S II SGH-I777] CollegeProfesor:
^ Dude are you kidding me. Thats amazing, how do I get that? Im on UnNamed and Entropys kernal as well, I also have SetCPU running and my battery is 20% after 8 hours.

Wifi is on and off throughout the day. GPS is off, sync is off.
[AT&T Samsung Galaxy S II SGH-I777] mickey4mice:
If my wifi's on, I could never get that battery life, I generally lose 1-2% an hour. I just turn wifi off when I've no use for it, but I do leave wifi sleep policy to never.

I don't use setCPU, but when I look at CPUSpy, it's 95% deep sleep so I guess nothing is holding a wakelock.
[AT&T Samsung Galaxy S II SGH-I777] cwc3:
Anything special you have done? SetCPU? Freezing? You Battery stats don't even show your "Android System" being used.
[AT&T Samsung Galaxy S II SGH-I777] mickey4mice:
TURN WIFI OFF, it drains between 1-2% an hour on mine, that is with all wifi related apps frozen in TiBu.

No SetCPU for me, I only use CPUSpy and BBS to check for high CPU usage and wakelocks.

And oh, I think turn off all animations help battery too.
[AT&T Samsung Galaxy S II SGH-I777] dmnall:
Well I was getting 30+ hours out of mine until the Google Music update and now my battery life with stock rom *rooted, unbloated and codeworkx Kernel with CWM from when I rooted*. I have tried freezing all of the wifi crap but still does not matter. Seriously thinking about flashing UnNamed..

HTH,

Charlie
[AT&T Samsung Galaxy S II SGH-I777] arctia:
If you allow background data sync, which everyone does probably, you need to turn off WIFI when not using the phone.

Here's mine, was aiming for 4 days, but forgot to turn off wifi during the last part -_-

Screen on was over 3 hours. Can definitely do 4 if I didn't leave wifi on. I didn't even let the phone fully recharge at start. This is completely stock + rooted. No custom kernel, no undervolt or underclock.
[AT&T Samsung Galaxy S II SGH-I777] Alucardis666:
^^^ That's impressive. I got roughly 15 hours and only lost 25% battery so far since undervolting.
[AT&T Samsung Galaxy S II SGH-I777] CollegeProfesor:
Can you share your unvolting numbers?
[AT&T Samsung Galaxy S II SGH-I777] hyghonryce:
Can you show proof that the screen time is over 3 hours? Just want to see it. And i noticed your battery goes up slightly at half way point. weird.
[AT&T Samsung Galaxy S II SGH-I777] arctia:
Yeah that is strange. I think that was the time when I drove into an underground parking. No reception, and I needed to head to a conference, so I turned on airplane mode. Didn't turn off airplane mode until after the conference, which was several hours later. Maybe airplane mode messed up the calibration?

And sorry, no screenshot of that. But should be easy to reproduce. I can probably provide a screenshot next weekend if my usage is similar to last week's.
[AT&T Samsung Galaxy S II SGH-I777] amtrakcn:
SetCPU seems drain battery more than not using it, at least for me.
[AT&T Samsung Galaxy S II SGH-I777] joeybear23:
Well, i'm getting crazy awesome battery life now but I think it has a lot to do with the 3500 MAh battery...

Warning: Created with Swype
[AT&T Samsung Galaxy S II SGH-I777] WMguy:
I'd like to join the good battery life club but not there yet. I'm on UnNamed with 2.6.35.7_ZedomaxStockKernel Kernel from galaxy2root.com. I'm at 62% 5 hours off charger of very light usage. Barely any apps installed and screen display at minimum.

I read all these good battery reports from unNamed. Could it be the Kernel?

Any other suggestions?
[AT&T Samsung Galaxy S II SGH-I777] Rattles:
did you check for any drains or wakelocks using better battery stats?

as for me, I am finally very happy with my battery. I upgraded my Rom to unnamed 1.3.1, removed the known battery drainers and adjusted my settings. yesterday I was at 1d 7 hours with 20% left and that's with wifi and BT on the entire time, 2 full movies on netflix and about an hour of Pandora streaming and of course a good amount of emails and browsing.
[AT&T Samsung Galaxy S II SGH-I777] dmnall:
Are you using Facebook at all? I am back to getting amazing battery life again after the last fb update sometime last week or towards the end of the week before, it set my syncing of the widget to every hour, took me from 30+ hours down to 12 hours, I set it to every 4 hours for testing purposes and now I am back up in 12 hours I 33% battery life with 30 minuet phone call this morning and deleting over 100+ spam messages on one email account I use. This is with a weak cell coverage area for 8.5 hours, wifi on in that area, and at work with full hspa+ network with bluetooth on all the time and wifi at work since 9:30 this morning. I cannot complain so far, I should get at least 24 hours between charges now. This is with Stock Rom, Rooted, Debloated and still running the Codeworkx Kernel.

HTH,

Charlie
[AT&T Samsung Galaxy S II SGH-I777] PeartFan40:
Battery life

I'm running Criskelo v30 w/ZedoMax kernel. Display timeout is set to 1 min, brightness is set to 85%, all animations are checked, WiFi is always running (I have WiFi and home and work), facebook is set to sync every 4 hours, etc. etc. I use my phone regularly for texting, email, XDA app, Fafebook, calls, and ocassional gaming. I get an average of 14 hours battery life with about 15% to spare when I plug my charger in. I should also note that I have cycled my battery 8 times (full charge to full dead). I also don't keep my phone in my pants pocket (heat plays a role in power drain). I am more than satisfied with the batteey life on my SGS II. Far better than the battery life on my Thrill and my Inspire. I should also note that my battery life gradually increased as I cycled my battery. When I first got my SGS II, my battery life was horrible (6-8 hours on average).

IMPORTANT: Make sure your battery is fully charged when flashing to a different ROM. I can not stress this enough.
[AT&T Samsung Galaxy S II SGH-I777] getbuzzin:
Is it just me or does it seem like a lot of people are obsessed with their battery life. I get through a full day with about 10-20% left before going to bed on moderate usage. I would not sacrifice some of the phone feature to get more out of my battery. Maybe it's just me but I don't mind having to charge my phone every night.
[AT&T Samsung Galaxy S II SGH-I777] WMguy:
It's not you, many people are. And I'm one of them unfortunately! I'm trying to wean myself off though. Eliminating the % meter is a good first step. But my battery died today at 2pm, 7 hours off charger with very light usage.

Thanks guys for all the responses. I'm not using FB at all. Honestly I probably jumped into rooting and flashing too early and that's probably not the issue. I've only had the phone since Friday so the battery's probably just not conditioned yet. The ATT GS2 is the first carrier branded phone I've used (I think ever) so I was too eager to get the crapware off. Was on Windows mobile for 9 years and bought all phones unlocked. Then on to iPhone for a few years (no crapware), then a Nexus S which didn't require any tweaking IMHO. So the GS2 was a shock with all the bloat!

Anywho, I went back to stock everything and unrooted for now. I'm going to give it a full week until I make a solid judgement. If everything's good, I'll probably return to UnNamed 'cause man that was fast.;)
[AT&T Samsung Galaxy S II SGH-I777] cmunic8r99:
17% drain in four hours?

I seem to be having some battery problems myself. dmesg, wakelocks, screenshots attached.

I didn't reboot immediately prior to collecting these, but I did fully charge and turned off the display pretty quickly after charging. Other than a small amount of usage at the beginning and end of the four-ish hours shown in the screenshots, the phone was face down on my nightstand, display off, wireless on, regular syncing enabled.

Any help is appreciated.
[AT&T Samsung Galaxy S II SGH-I777] mrbenjihao:
I seem to be having the same issue where the battery would only last 6-8 hours regardless of use. My deep sleep percentages range from 85-95% so it seems normal to me. I'm on UnNamed 1.3.1. Do I just need to be patient and cycle the battery more often? Someone above me posted something similar to what I'm saying and I'm just wondering if my battery life will improve over time.
[AT&T Samsung Galaxy S II SGH-I777] cmunic8r99:
I am, but only because I am losing more than 4% per hour with it idling on a table. Well, that and I'd like to get my money's worth out of the phone - especially since I bought it off-contract. This is the only problem I've had with what otherwise is an extraordinary smartphone, but it's bad enough that I have had to recommend other phones to friends and coworkers.
[AT&T Samsung Galaxy S II SGH-I777] ferrocene:
Seems like you have a wakelock stuck on. There's another thread that goes over that. I get 30 hours with 5 hours of screen on time.

"Screen filter" is a must in a low light setting. The default brightness doesn't go low enough. Oleds are really power hungry.
[AT&T Samsung Galaxy S II SGH-I777] cmunic8r99:
I don't think the display is the problem - these numbers were with the screen off.
[AT&T Samsung Galaxy S II SGH-I777] arctia:
No idea why, but battery really sucks if I leave wifi on. I didn't turn on wifi at all this week. And look what I got:
[AT&T Samsung Galaxy S II SGH-I777] gr8hairy1:
Lol. Dang some battery life!

Looks like someone did a cwm restore.

Sent from my páhhōniē
[AT&T Samsung Galaxy S II SGH-I777] WMguy:
FWIW, my battery issue was solved by turning off GPS. Two days in a row it was dead by 3pm then 5pm. Yesterday, gps off, I put on the charger at 10pm with 60% left, same amount of usage.;)
[AT&T Samsung Galaxy S II SGH-I777] dandrumheller:
Curious. Did you notice If there were a lot of GPS activations on your battery usage screen? May have been apps trying to gps locate, which are not doing so with GPS disabled. Just a thought...
[AT&T Samsung Galaxy S II SGH-I777] Blaze9:
A very helpful app I would suggest is tasker. I have a GPS profile which will only activate GPS if appa such as maps, navigation, car home, lookout, Google sky, etc are on. Otherwise GPS is off. Take a look into tasker. Its worth it.
[AT&T Samsung Galaxy S II SGH-I777] Alucardis666:
I will be looking into this. thanks!
[AT&T Samsung Galaxy S II SGH-I777] dandrumheller:
+1 for tasker. One app to rule them all....
[AT&T Samsung Galaxy S II SGH-I777] tboooe:
Are you sure this is possible? I heard from the devs at Tasker that apps can no longer activate GPS or Network Location. I would love for Tasker to do this.
[AT&T Samsung Galaxy S II SGH-I777] mrbenjihao:
Is there a problem with the wifi? I noticed too that turning off the wifi gave me extremely good battery life. I went from an average of 6-8 hours of battery life with the wifi on to 10 hours of battery life per 10%. That's remarkably better and I'm wondering why wifi is so battery draining.
[AT&T Samsung Galaxy S II SGH-I777] gr8hairy1:
That is very odd. Wifi is supposed to use less power than anything. Lte(obviousy), 4g, 3g, even edge.

Sent from my páhhōniē
[AT&T Samsung Galaxy S II SGH-I777] drache713:
I get really good battery life on mine, I can get through a whole day with moderate usage with no problem.
[AT&T Samsung Galaxy S II SGH-I777] Captpt:
Same here but unfortunately I don't consider this "really good battery life", getting through 2 days with moderate use is what I'd like to experience..
[AT&T Samsung Galaxy S II SGH-I777] mrbenjihao:
So I just arrived back to my dorm and.connected to their wifi. I've gone from losing 10% battery an hour idle to 1% lost in 2 hours idle. Im guessing its because my wifi at home kept disconnecting me for some reason haha I'm really happy with this battery life now =)
[AT&T Samsung Galaxy S II SGH-I777] joeybear23:
With the 3500MAh battery I get 5 days of standby (with data/sync on, etc) or 2 days of moderate use, including about 6 hours of screen-on time.

I am getting used to the bulk, but I don't have to worry about battery life anymore.
[AT&T Samsung Galaxy S II SGH-I777] cbb77:
I am getting about 36 hours now with moderate use and sync set to every 15 mins during peak times. I am also still on stock rom. This is huge increase from average 12 hours from when I first got the phone. For me the key was to freeze a few apps that I never use. I was following the UnNamed ROM thread and froze a few of the apps he mentioned he removed. I used Titanium backup to freeze / remove the following apps:

AP Mobile - Frozen

AT&T Live TV - Removed / Uninstalled

AT&T FamilyMap - Removed / Uninstalled

AT&T Featured Apps - Removed / Uninstalled

AT&T Movies - Removed / Uninstalled

AT&T Navigator - Removed / Uninstalled

Buddies Now - Frozen

City ID - Frozen

Dual Clock - Frozen

Facebook - Frozen

Social Hub - Frozen

Words With Friends - Removed / Uninstalled

Yahoo Finance -Frozen

With the changes above, I started to get about 30 hrs consistently. I then bought Juice Defender Ultimate (currently $1.99 today) and then have been able to push it to about 36 hours. Basic Juice Defender doesn't seem to provide any real benefit, however with Ultimate you can control the radios and sync process much more. I have my default sync period set to 1 hr intervals however have defined a peak period (business hours) where it syncs every 15 mins. I have also defined a night period where it basically does not sync. These option are only available in Ultimate version. Again, with these few options it appears I was able to squeeze another 6 - 7 hrs. Thus SG2 can indeed get great battery life without a custom Rom. Overall I am very pleased now.
[AT&T Samsung Galaxy S II SGH-I777] honghsien5:
This is my battery graph right now with an hour of screen time.

Is it considered good?
[AT&T Samsung Galaxy S II SGH-I777] gr8hairy1:
Hard to say off only one hour. Depends on how much you had going on. Screen time is one thing, downloading, installing, and game play within that hour is another.

From your screen shot it looks like from your status bar you did a batch of updates. All in all it seems like you're on a good roll. You really won't get a good feel for the battery life until you use it for a few days and see where you're at come the end of the day.

Sent from my páhhōniē
[HTC Sensation] Nikecrosoft:
What do you guys and girls think about ICS?
[HTC Sensation] nrvnqsrxk:
Improved software integration for ease of use of social networking, addition of a majority of CM7 features, and improved graphical interface/UI (resizable widgets).

Steps toward the right direction, appealing to the non-tech saavy if you ask me.
[HTC Sensation] Mainspring:
I think it's great.

I might even want to use it on it's vanilla form.

love all the tweaks and new features. I wants it nao! :p
[HTC Sensation] Nikecrosoft:
Hurry up!

i hope some devs could port fast as hell to the sensation so we can have fun! :D
[HTC Sensation] Nikecrosoft:
http://xdaforums.com/showthread.php?t=1318259

Take a look at this post everyone
[HTC Sensation] galaxys:
Awesome if ported asap....
[HTC Sensation] nory82688:
I think it looks great, and they definitely added alot of amazing features. I also really liked the galaxy nexus, going to buy it as soon as the hspa+ model is available. I don't care if I have to import it from the UK
[HTC Sensation] septix:
Newer is better, better gets improved = profit
[Vibrant Q&A, Help & Troubleshooting] ursubpar:
Can anyone with a Jtag box or the unbrickable mod (preferably non-unbrickable mod) flash the SGS4G bootloaders and see if it would properly load? I'm hoping this would benefit the gingerbread-running abilities of the vibrant. I am trying to port an SGS4G base to the phone so this could make it run even better.

Those of you that dont have a Jtag box or an unbrickable mod are free to try but will be risking their device. I WILL NOT be responsable for any bricks that occur.
[Vibrant Q&A, Help & Troubleshooting] Demetris:
Any link to the bootloaders?

Would be helpful.
[Galaxy S II Q&A, Help & Troubleshooting] ngoonee:
I'm using Touch X-Power latest along with JKAY mod, and a game I'm trying to download gives a 'not compatible with device' error.

Googling around, this is probably because my DPI has changed, how do I tell if that's the case?
[HTC EVO 3D] priologiacomo:
I ask all help. I was basically trying to make the device state s to s-off-on.

I installed by mistake hboot of CDMA HTC EVO 3D.

now I ristrovo with the screen turned black and red little light.

how to fix this?? Thanks to all.
[HTC EVO 3D] mattfmartin:
Your screwed. Pay more attention next time. Tough break
[HTC EVO 3D] Threevo:
Wa wa waaaaaa
[HTC EVO 3D] thizzlemania91:
Dont listen to them man. There is a thread in this section about bricked phones. It's called " think you bricked your phone look here" you'll be alright.

It's a couple down or you can try out.some guys technique its for gsm.
[HTC EVO 3D] priologiacomo:
Where is this section? Thank you.