yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S II SGH-I777] Jonnyredcorn:
its not the amazon app store it was blood and glory and contract killer zombies that killed my battery. I kept getting notifications from ck zombies about 50% off glu games which made me think it was the culprit.

Last night I lost 3% over 8hrs34mins this time I kept wifi & GPS on but kept sync off with background data on.

Tonight I'm gonna test my overnight drain with auto sync also enabled(Gmail & Calender) and see how much auto sync drains while idle. I always reboot before I test so I figure any additional drain over 2-3% would be from leaving sync on.
[AT&T Samsung Galaxy S II SGH-I777] gr8hairy1:
@Jonnyredcorn

Thanks for taking the time to nail down the culprit and letting us know.

Sent from my páhhōniē
[AT&T Samsung Galaxy S II SGH-I777] dmm5157:
Sounds good. I will install Amazon App Store tonight and then see what battery is like tomorrow. I was thinking the same thing about those games.

Battery was at 74% after 10+ hrs. Last week with those Glu Mobile games I was at 50 or lower by that time.
[AT&T Samsung Galaxy S II SGH-I777] Jonnyredcorn:
I am new to android but I'm loving it. Not just android but this i777 w/ unnamed & launcher pro with premium Facebook and calendar widgets is just awesome. I just hit 20hrs with 14% left.

If anyone wants any more info on what apps I have installed or whatever to get this awesome battery life let me know. I am not sacrificing anything foe battery either, you can see my display is at 50%

The following picture shows my usage which I feel is moderate/heavy. The first pic is what I took this morning after letting it sit overnight after a full charge & reboot. Sync off GPS & wifi on...3% drain. Second shows my overall graph from last night until now, and 3rd shows my display time. Last shows CPU usage.

I had sync(Gmail&calendar),GPS, & wifi on while at work(10hrs).

All I wanted was to be able to use my phone all day without having to worry about a charge. I think I've got that.
[AT&T Samsung Galaxy S II SGH-I777] arctia:
I can confirm that tapatalk still has issues with certain forums. I was just watching the CPU usage while it idles in the background, and it constantly uses over 50%. How does it use 50% CPU when I'm idling at forum index??
[AT&T Samsung Galaxy S II SGH-I777] gr8hairy1:
Here's my display time for today alone:

Still recovering from stupid surgery, nothing else to do at home. Just as an fyi, surgery is not as fun as it sounds.

Sent from my páhhōniē
[AT&T Samsung Galaxy S II SGH-I777] tboooe:
am I reading your pic right? Over 7 hours of screen on time and you still have 67% battery????
[AT&T Samsung Galaxy S II SGH-I777] Jonnyredcorn:
So I had a 3% loss last night over ~8hrs w/ sync, wifi, & GPS on...barly .5% more than with it off, it even sync'd 2 emails. So my question is does sync on drain the battery more throughout the day when being used more?
[AT&T Samsung Galaxy S II SGH-I777] gr8hairy1:
Lol I wish. But with the 3500mah extended battery I usually get at least 6 hours screen time by 5% left. I had started charging about 1 1/2 hours before that screen shot.

Sent from my páhhōniē
[AT&T Samsung Galaxy S II SGH-I777] Jonnyredcorn:
Man I got my battery and phone setup exactly how I want it and entropy comes out with a new kernel...not sure if I'm going to install because I don't see any new features I'm interested in.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
Should be able to flash it without changing any settings - and if it somehow breaks something flash it back.
[AT&T Samsung Galaxy S II SGH-I777] jose_tortola:
I don't know if this is affectin also AT&T's SII, but I've found in a GT-I9100 an ap called "Samsung Push Service" installed during a update of the ap "Samsung Apps" that is draining my battery with wakeloks of more than 3 hours in a day.

Here is the post about it.
[AT&T Samsung Galaxy S II SGH-I777] Jonnyredcorn:
So just flash it then? What exactly are the improvements? I didn't really see in the notes that was any interest to me...your last kernel w/ unnamed 1.3.1 really is working great for me. I feel like now I'm set till I can get ICS.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
The MMC power management patch might improve battery life a little more.
[AT&T Samsung Galaxy S II SGH-I777] AlecKyle:
I'm getting pretty good battery life on OEM battery, with unnamed.

As you can see I had my phone in use most of the day

Sent from my SAMSUNG-SGH-I777
[AT&T Samsung Galaxy S II SGH-I777] Jonnyredcorn:
that's roughly the same as me.
[AT&T Samsung Galaxy S II SGH-I777] Cdub5:
I'm very happy with this. Running serendipity 8.2. Tons of credit goes to the juice defender app. Before JD, at best I would get 14 hours. I've been texting, phone calls, emails, browsing and this is the best batt life I've ever gotten
[AT&T Samsung Galaxy S II SGH-I777] nacos:
Alternative push e-mail client

Hey Vlad,

Although I've used it for a while, I'm not quite sure how heavy K9 is on battery drain but if you're looking to test another full featured push e-mail client, I've been using ProfiMail for quite some time (the only downside of it is not having full HTML, but I can live with that) - and I'm extremely happy with it. I'm using 4 gmail accounts (push) + another one (no push). Give it a try, see how it goes - there is a 30 day full featured free trial version in the market.

Also, ProfiMail never seems to appear under the battery usage as a battery drainer, although it works flawlessly as far as pushing emails.
[AT&T Samsung Galaxy S II SGH-I777] chase10784:
So let me get this straight. We are supposed to have less battery drain with wifi on than we are with using cell data correct? I did a quick hour long idle test with my phone, one using wifi on and one with cell data with cpucpy and saw something that concerned me. With the wifi on test i did cpuspy showed only 80% deep sleep while the cell data test showed 97% deep sleep. So do you guys think an app could be causing wifi to use data while in sleep keeping it from reaching complete deep sleep thus draining battery faster?
[AT&T Samsung Galaxy S II SGH-I777] garyd9:
Seems reasonable that two radios active might keep the CPU from sleeping more than one radio on.

That doesn't address actual power usage, though. Actual network traffic over the non-wifi radio supposedly uses more power than actual network traffic over the wifi radio. However, if there's no network traffic, you'd be better off turning wifi off.

Your test would be better if you compared actual battery drainage with a constant amount of data being moved. Perhaps some kind of script that ftp's a known file every 1 minute and then deletes it. Run that for a fixed amount of time (> 1-2 hours.) Do it once with wifi turned on (and connected) and again with wifi turned off.

You'll likely find that the wifi on test drained your battery less.

Take care

Gary
[AT&T Samsung Galaxy S II SGH-I777] harleydad82:
So here is a suggestion and someone please correct me if this is acually doing more harm than good. I use "Quicksettings" app from market. Once you pull down notification bar and click on app you can edit what you need to control. But I use it to turn my DATA "3g/4g" off completely when i'm not needing to get any emails or updates from fb or anything. I manually turn back on the data or wifi when i need to check fb or anything. This really extends my battery atleast i think it does. Why haven't more ppl been doin this? I would assume that i could use juice defender to do the same thing automatically. But i haven't yet. If i'm at home i use wifi all the time. if i leave the house i have data and wifi off. I don't regularly use fb or get alot of emails throughout the day. So this is my lil trick as to extending my battery. I did notice android OS is by far surpassing anything else for batt usage. Anyways to explain what that is? That was with wifi on during the night "never sleep". I have yet to let phone sleep with wifi off and see what usage is like.

Also tonight i will be monitoring and posting in the morning of my numbers. As of right now i have 93% battery life. i have Wifi and Data turned off. All sync's are on "can't if no data or wifi" I just checked cpu spy, sleep was at 82%, and Battery spy says my loss per hour was 2.2%. I will update in morning.
[AT&T Samsung Galaxy S II SGH-I777] harleydad82:
Continued from last post.................

Also tonight i will be monitoring and posting in the morning of my numbers. As of right now i have 93% battery life. i have Wifi and Data turned off. All sync's are on "can't if no data or wifi" I just checked cpu spy, sleep was at 82%, and Battery spy says my loss per hour was 2.2%. I will update in morning.

Yesterday 05:44 PM

"UPDATE" Phone sat a lil over 8 hours, with the above options. Here is my numbers. First off my battery is at 86% from 93% (Not Bad!!) "cpuspy" had Deepsleep at 90% (Not bad) 200mhz was 4%, the rest were at 1% to 2%. "Battery spy" says my %/hr lost was .8% per hour!! GREAT!! "battery monitor" says total "Awake" time was 1h05min, total time off charge so far 10hr54min. Now again this is with DATA/wifi both turned off. My phone is completely stock "no root" I plan to flash as soon a ICS is out from CM9. I will compare my numbers tonight of my phone with wifi Turned on, then data the next night, so i can truly decide which saves more battery while on. Any Comments would be great.

Also 2 questions i hope someone can answer: My phone keeps have alot of apps running in task manager. I keep forcing close, anyway to stop them from starting. Alot of them i don't even use. I even tried task killer app and set to auto kill but they keep coming back on???? I did notice "Android OS" is by far surpassing anything else for batt usage, I i knew what was running that is part of Android OS I would be able to Extend my battery even further while it was sleeping so to speak. Anyways to explain what that is?Answers???
[AT&T Samsung Galaxy S II SGH-I777] tamarian:
Best app for that is Gemini App (free) and Autostarts (paid) but both require root. They both allow altering auto-run states of apps. The apps you don't need or use, just uninstall them. If they are part of the ROM, you will need root to uninstall/freez with Titanium backup and the like.

Instead of turning off data and sync, use Green Power (free and Paid) to turn them off based on screen state and scheduled periods.
[AT&T Samsung Galaxy S II SGH-I777] harleydad82:
Thanks for the info on those apps, but I'm not wanting to root just yet. When I do root I will use tibu to freeze apps or install the bloatware.Is that app the same as "juice defender" I will try it but I already have jd ultimate just haven't installed and used on this phone.

Again I wish I could find out what Android OS is running, can anyone explain?
[AT&T Samsung Galaxy S II SGH-I777] tamarian:
Yes, same as JD, just a lot simpler.

Here's some good stuff to read on Android OS issue: http://xdaforums.com/showthread.php?t=1290020
[AT&T Samsung Galaxy S II SGH-I777] harleydad82:
Thanks good info!
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
Yes - some apps decide that when on wifi they can use more data because it's "free". This will cause lots of drain.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
Because we like to actually get our emails and IMs when they're supposed to come in.
[AT&T Samsung Galaxy S II SGH-I777] chase10784:
Is there a way to determine exactly which app it is that wont require me to go one by one and test them as that would take forever? I guess if thats the only way i have to do it cuz this is terrible. Last night i let my phone sit overnight with wifi on and it had 80 left when i fell asleep and woke up 6 hours later and it was at 56. I also had syncing off, gps off, only wifi was on.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
Ah, that reminds me, I still need to make an update for the first post.
[AT&T Samsung Galaxy S II SGH-I777] chase10784:
Ok so i did a clean wipe of all my apps and have figured out it is def some app that is causing the drain during wifi because with only minimal apps installed (cpuspy, batt stats, tibu, movies by flixter, zedge plus all the apps already on unnamed) my deep sleep perc has increased to over 90.
[AT&T Samsung Galaxy S II SGH-I777] tbob18:
I had the same problem. I have moved to Enhanced Email (got it free on Amazon a few weeks ago), now the problem is completely gone, and have noticed a good 10-15% battery life increase. As a bonus, it supports HTML signatures. :)

The downside is that it does not show a preview of the message in the notification, and it is slightly slower than K9.. But I'd rather have my battery life.
[AT&T Samsung Galaxy S II SGH-I777] garyd9:
Another battery drainer:

(I confirmed this on the skyrocket I had for a week, but don't have enough data allotment left this month to try it with the GSII... remind me on the 16th of Dec and I'll test it again.)

If activesync is misconfigured (or configured to try to find an exchange server at a bad IP), it will retry. Often. In a 2 hour span, I used over 30% of my battery and chewed through nearly a full gigabyte of data.

Common situation this might occur: Your exchange server is addressed with a private IP on your internal LAN (such as 192.168.1.12), but with a very different IP number outside of your internal LAN. If you configure the activesync/exchange server while on your internal LAN, something is caching that internal/private IP.

When you leave your internal LAN, that private IP is still cached, and it will retry. Over and over. For some reason, the silly thing doesn't re-resolve the email server name, but just keeps retrying. and retrying. It doesn't seem to ever stop retrying. I think it even retries it's own retries.

Solution? If this bug exists on the GSII, you need to convince your phone to only use the external facing IP address. Easily done by deleting your activesync sync, turning OFF wifi, and reconfiguring it. It's possible it might still eventually pick up that internal IP again (perhaps if your phone reboots while your on that internal LAN?) Better solution might be to edit your hosts file to statically resolve your exchange server name, but that's beyond the scope of this post.

Take care

Gary
[AT&T Samsung Galaxy S II SGH-I777] tboooe:
Google Voice battery drain?

I am fairly certain that google Voice causes a fair amount of battery drain. Whenever I get a text message through voice I notice an immediate drop in battery. For example, this morning my phone was at 99% battery. I get 2 messages via Voice which I read. I then turn on my phone again about 10 mins later and notice by battery is down to 96%. It seems that once a text is received, Voice continues to wakelock the phone, polling for data??? When I look at BBS, I see that com.google.android.apps.googlevoice Update Service is holding the longest wakelock.

Anyone else seeing this?
[AT&T Samsung Galaxy S II SGH-I777] garyd9:
...and there are times you might just have a Bad Battery Day. This morning, I dropped from full charge to 85% in 3 hours. Normally, I'd be in the mid 90's after 3 hours.

I suspect AT&T is having issues with their towers here in cloudy pittsburgh today (as I've had several data disconnects with my email server.) I'm guessing that that would be the most likely cause (as nothing else on the phone has changed.)

I've rebooted and have have it a charger. If the issue continues, I'll look at it in depth...

The really nice thing about these phones (compared to iphones) is that they charge from an industry standard micro-USB. It's the exact same connector used for charging my wireless mouse and wireless keyboard. One Cable to Charge Them All.

I wish my android tablet (also a sammy) charged from a microusb...

Take care

Gary
[AT&T Samsung Galaxy S II SGH-I777] 21cdb:
Yes, I had that exact issue. I got a text in the middle of the night through Google Voice, and that text kept the phone constantly awake and draining my battery until I woke up.

I don't know if it also does it, but once was enough for me, and I froze it.
[AT&T Samsung Galaxy S II SGH-I777] garyd9:
I wonder if that happens only with text messages, or if it happens with voice mail notifications as well. Many people (myself included) use google voice as a "visual voice mail" service. However, I use my carrier's SMS service.

Something else to test...
[AT&T Samsung Galaxy S II SGH-I777] tboooe:
It seems like when I get a Voice text, it pegs my phone at either 1200 or 1000MHz. I got one message and my wakelock was 1m 22s!
[AT&T Samsung Galaxy S II SGH-I777] stalked_r/t:
Touchdown reports short wakelocks consistently on my BBS. Nothing long term, but it's consistently there. Not that that's to be unexpected from a mail client.
[AT&T Samsung Galaxy S II SGH-I777] WMguy:
Keep GPS off if not using.

I've had 3 GS2s. All three of them had a very extreme difference in battery life when the GPS was toggled on vs off. Anyone having battery issues, give it a try for a day. Easy fix for me at least.
[AT&T Samsung Galaxy S II SGH-I777] polobreaka:
i wanted to do this test to see if my phone has any drain.

i full charged, unplugged and rebooted, reset cpuspy, and left the phone alone at 2:37am. woke up phone up at around 8:17am and these are my findings -

Unnamed 1.3.1 with ICScrewD theme

wifi - on

sync - off

bt - off

data - on

gps - off

Deep sleep percentage : 91%

Time the phone was sitting : 6h 6m on battery

Percentage battery drained: 0.33% per hour
[AT&T Samsung Galaxy S II SGH-I777] stalked_r/t:
A thread search showed a few referrences to this, but I've had my phone up for 3 hours 10 minutes 4s on battery. I'm currently at 66%. When looking at BBS, I show these kernel wakelocks:

svnet-dormancy 51 m 8s

Svnet 43 m 9 s

Alarm_rtc 28 m 8s

Vbus_present 24 m 24 s

SEC-battery-monitor 15 m 50 s

I can post more if needed.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
Did you reboot before pulling it off battery? svnet-dormancy of 51m out of 3h10m is EXTREMELY high. But kernel wakelock stats only reset on reboot.

Edit: vbus_present of 24m says you didn't reboot before running this test.
[AT&T Samsung Galaxy S II SGH-I777] stalked_r/t:
Correct. I'll be sure to reboot. I jsut did in fact. Battery is down to 65% after being off the charger since 7 am. That's nearly 30% loss every hour!.
[AT&T Samsung Galaxy S II SGH-I777] gr8hairy1:
Just had a unusual drain through the night

The only thing that changed on my phone is downloading some of the 10¢ marketplace games. Asphalt 6 does show up, though I played a few races before going to bed.

Phone idle and cell standby show up as running as long as the 'up time'. Android os and android system show up for 3 min and 10 min, respectively.

I'm not trying to troubleshoot my problem. That I can do. I was wondering if anybody else who also downloaded asphalt 6 had unusual battery drain through the night.

Sent from my páhhōniē
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
Check your wakelocks - behavior like that is a classic example of gaining a perma-wakelock.

Wakelock drain doesn't really show in Settings->About Phone->Battery Usage
[AT&T Samsung Galaxy S II SGH-I777] garyd9:
Not through the night, but before I left for work this morning, I rebooted my phone (while still on the charger.) I do this (and reset counters) to clear numbers in CPUSpy and BBS. A few hours later, I saw Asphalt 6 as a consumer of about 6% battery on the battery page. Checking the program, I don't have the option to force close it, and it's not showing as a running program (and I haven't run it at all since rebooting the phone.)

I'm wondering how/why Asphalt 6 was using ANY battery power when I never started it, and it doesn't seem to have any permissions related to auto-start.
[AT&T Samsung Galaxy S II SGH-I777] Jonnyredcorn:
What is this "*backup*" that I'm seeing in bbs?
[AT&T Samsung Galaxy S II SGH-I777] chamonix:
it's the service backing up your Android settings and can be turned off under "settings - privacy"
[AT&T Samsung Galaxy S II SGH-I777] Jonnyredcorn:
Ah, how often does it run?
[AT&T Samsung Galaxy S II SGH-I777] garyd9:
Encountering an oddity with the battery on my phone over the past few days...

(DD 12/1, Unnamed 1.3.1, no theme)

Starting 2-3 days ago, I noticed that my battery was draining a bit faster than normal: at about 4% per hour (which is almost double my normal.) Nothing unusual was showing up in CPUSpy, but BBS was showing that the "AT&T 'smart-wifi'" program (that I restored from a SR backup) was using several minutes of wakelock time. A few other services were also using more wakelocks than normal, most related to network or location.

Today, however, I'm back to having GREAT battery life.

Each morning, I usually reboot my phone, and immediately go into settings->about->status. (Doing this clears a cosmetic issue with the 'call standby' on the battery screen.) The only thing I did differently this morning was to toggle airplane mode on and then back off. Everything else is the same.

That "AT&T smart-wifi" program, along with other location services, are now near the bottom of the BBS wakelock list where they belong (and MAIL is back on the top.) Otherwise, the phone is acting normally.

If there are others who monitor their battery usage after a reboot, try and toggle your airplane mode on and back off again after a reboot to see if it makes a difference.

IF this consistantly helps people, it would possibly be a symptom of a bug. However, it should be fairly easy to write a program to toggle airplane every time the phone starts up...

Take care

Gary
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
Classic AT&T bloat being epicfail...

4%/hour is about what you'd expect for "wakelocked but fully idle".
[AT&T Samsung Galaxy S II SGH-I777] garyd9:
I'd go along with that iff the at&t program was the only item that jumped to the top of the wakelock list. In this case, however, I'd have "network location, Google Services" and "network-location, android system" jumping to the top of the wakelock list as well.

How about "Event Log Service, Google Services" up there as well? I wonder if that indicates that something is spamming the log (viewable with logcat.)

I'm just wondering if something related to "location services" (coarse grain location - NOT wifi or real GPS location) is having issues and causing problems. Perhaps toggling airplane mode somehow "resets" those location services and causes the problem to appear fixed (at least for a while.)

Take care

Gary
[AT&T Samsung Galaxy S II SGH-I777] Jonnyredcorn:
What's going on with this "starting alert service"? I've never seen this before.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
That one's right in the OP...
[AT&T Samsung Galaxy S II SGH-I777] chamonix:
I can't tell and afaik there are no sources for that. If you already backup (e.g. with titanium) I'd recommend turning the backup service off. Depneding on conditions like network coverage it can be quite a pain
[AT&T Samsung Galaxy S II SGH-I777] Jonnyredcorn:
My bad....so I take it there is no fix for it? I just cleared the calander in the "show cached processes" list in "running applications" and it stopped the counter from increaseing when I refreshed BBS.

Facebook chat also seems to be wake locking me lately.