Develop Bugs

A Day and a half use out of an evo with FRESH rom? HOW?!?!?

Since my inquiry was ignored in the original post, I'm going to ask it here, HOW are these claims of a day and a half worth of battery life achieved with the fresh rom?
I just installed it last night with a clean wipe (including dalvik cache) and even erased the battery stats coming from Baked Snack with the kernel listed as "best battery" (which I can't get more than 12 hours out of with hardly any use).
I see claims of a day and a half so I want to achieve that as well, so help me out, here's what's going on with my evo
1. mobile data, 4g, wi-fi were all off. had no need for them for most of the day, only turned on 3g for about 20 minutes when I walked to the store.
2. GPS and bluetooth were off all day
3. listened to a couple of mp3s
4. about half an hour MAX of phone calls
5. about 50 text messages
6. played scrambled net for a while
7. haptic feedback is off, brightness is at around 30%, live wallpaper wasn't used, auto-sync is disabled on EVERYTHING, e-mail is set to once a day, google talk isn't set to auto start, using overclock widget to UNDERclock my CPU, using juice defender to turn off mobile data when my screen is off
I have screen shots posted, let me know where the problem is coming from!
here's my uptime and awake time
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here's the real life battery life I'm getting and where it's going
For comparisons sake, here's when I used Baked Snack
^^^in all fairness, 8 of those hours were of me SLEEPING and the phone just sitting there.
You can tell I wasn't doing anything because the highest percentage of the battery usage was "Cell Standby" and "Phone Idle"
so can anyone help me get some better battery life?

the_hustleman said:
Since my inquiry was ignored in the original post, I'm going to ask it here, HOW are these claims of a day and a half worth of battery life achieved with the fresh rom?
I just installed it last night with a clean wipe (including dalvik cache) and even erased the battery stats coming from Baked Snack with the kernel listed as "best battery" (which I can't get more than 12 hours out of with hardly any use).
I see claims of a day and a half so I want to achieve that as well, so help me out, here's what's going on with my evo
1. mobile data, 4g, wi-fi were all off. had no need for them for most of the day, only turned on 3g for about 20 minutes when I walked to the store.
2. GPS and bluetooth were off all day
3. listened to a couple of mp3s
4. about half an hour MAX of phone calls
5. about 50 text messages
6. played scrambled net for a while
7. haptic feedback is off, brightness is at around 30%, live wallpaper wasn't used, auto-sync is disabled on EVERYTHING, e-mail is set to once a day, google talk isn't set to auto start, using overclock widget to UNDERclock my CPU, using juice defender to turn off mobile data when my screen is off
I have screen shots posted, let me know where the problem is coming from!
here's my uptime and awake time
here's the real life battery life I'm getting and where it's going
For comparisons sake, here's when I used Baked Snack
^^^in all fairness, 8 of those hours were of me SLEEPING and the phone just sitting there.
You can tell I wasn't doing anything because the highest percentage of the battery usage was "Cell Standby" and "Phone Idle"
so can anyone help me get some better battery life?
Click to expand...
Click to collapse
There is definitely something eating your battery because this is bad beyond bad. I would flash a rom and not install anything at all. Set up your email accounts and use as normal but install nothing else and restore nothing else. See what battery life you get then. After that you can start installing apps back one by one and monitor how they effect your battery life.

did u do a full wipe and clean install? i cleared my stuff twice before i flashed and i get like at least 20 hrs...

Use Spare Parts and check partial wake usage, android system should be on top. If you still cannot find the app that is draining you, then flash a custom kernel that supports underclocking/overclocking and use setCPU app to underclock when your screen is off. With moderate use I go from 8am until 11-12 at night with about 20% of battery left.
Sent from my PC36100 using Tapatalk

are you on a stock battery? using fresh rom with kings kernel i can get a day and a half with much more usage then you have. i say reflash everything, radio, rom, kernel, and dont restore any apps at all. run it for a day without even installing any apps (except setcpu or overclock widget) and see what you can get out of it, maybe ur evo is malfunctioning?

Went to spare parts. UID 10011 is on top and slightly more than android system which is second. What is UID 10011?
Sent from my PC36100 using XDA App

davebu said:
are you on a stock battery? using fresh rom with kings kernel i can get a day and a half with much more usage then you have. i say reflash everything, radio, rom, kernel, and dont restore any apps at all. run it for a day without even installing any apps (except setcpu or overclock widget) and see what you can get out of it, maybe ur evo is malfunctioning?
Click to expand...
Click to collapse
ok, I'll nandroid it and try that approach.
so completely wipe it again (cache, dalvik cache, battery stats), flash the rom again, and install overclock widget only?
I'll try that - can't hurt nothin...

you should be able to get at least 7 hours of talk time with everything stock, if half an hour ate up 40% of your battery then you have something very wrong with your phone/ROM

and be careful wiping battery stats. Make sure the phone is at 100% charge (not just green light but actual 100%) and THEN wipe the stats. Then let the battery drain to 0 (to the point it shuts down on its own), and then charge back to 100%
That should get the battery back in line if you wipe the stats.

the_hustleman said:
ok, I'll nandroid it and try that approach.
so completely wipe it again (cache, dalvik cache, battery stats), flash the rom again, and install overclock widget only?
I'll try that - can't hurt nothin...
Click to expand...
Click to collapse
Let me know what your findings are if this helps. I'm in the same boat your in, installed FRESH 3.2 and I'm also not getting these battery improvements everyone is talking about. I'm still using the original battery from when I bought the phone which was on release day.

i wouldnt expect a day and a helf with use. While some are reporting getting it many others dont. "moderate" to "heavy" use varies by person. Many of these reporting extremly lng battry life that detail there usage to me is very light usage.
with that said you are getting pretty bad battery life. Instead of or before you go the route of taking a week to sintall your apps so you can check each one you may invest in system moniter. if you get the purchased version it has the ability to show you history of which apps are using the most battery power.
Also while some people may take offense to this i put a lot of the battery statistics into the sketchy at best catagory. It is similar to benchmarks with computer geeks. We will run benchmarks constantly trying to figure out what gives the highest score. and then we normally exagerate it a bit when we brag because we want to sound like we have the best rig.
now i am not saying everyone is but i would take most of the outragous battery stats with a grain of salt. if someon tells you they get 50 hours with moderate usage regularly. Their definition of moderate usage is probably what most consider as light usage. (ie moderate usage for 2-3 hours of the 50)

would using sense over launcher pro eat up more battery life or vice versa?

I have the Fresh 3.2 ROM flashed last night (technically early this morning). With the stock 2.2 ROM my battery died in about 5 to 6 hours, with Fresh 3.2 its already been 8 hours and my battery is at 29%. I love it! I have spare batteries and chargers everywhere, and I have auto sync on with moderate use today including a few video calls via Qik (not very long, a couple of minutes at best). If it get's better over time I will really be in love, though I wouldn't mind getting a full 24 hours out of a battery.

kudosmog said:
and be careful wiping battery stats. Make sure the phone is at 100% charge (not just green light but actual 100%) and THEN wipe the stats. Then let the battery drain to 0 (to the point it shuts down on its own), and then charge back to 100%
That should get the battery back in line if you wipe the stats.
Click to expand...
Click to collapse
Does the phone have to be on or off when recharging?
Sent from my PC36100 using XDA App

It also depends on how they are defining a day and a half. Are they talking about 36 hours of usage without being on a charger? I don't know many phones that can do that. Hell, I don't know anything electronic that could go 36 hours without some sort of power/fuel.
If they are talking about an 8 hour shift one day, then going home to bed, then waking up and going to work, and making it through another 4 hour shift, I can believe that. If they don't touch the phone hardly at all between the two work shifts (as I usually don't when I'm at home), I can see that.
My Evo on Fresh 3.2 only dropped 20% last night, as I left it in the living room when I went to bed and forgot to charge it. It was at 40% when I woke up, and I'd venture to say that under normal usage, I could get another 4 hours out of it when it's at 40%.
I also have netarchys 4.1.9 kernel, and setcpu set to set the processor to 245 mhz when the screen is off.

the_hustleman said:
ok, I'll nandroid it and try that approach.
so completely wipe it again (cache, dalvik cache, battery stats), flash the rom again, and install overclock widget only?
I'll try that - can't hurt nothin...
Click to expand...
Click to collapse
Ok, so i tried completely wiping device cleared all cache and installed minimal apps. I will see how goes. The funny thing is that I took it off the charger around 5pm and when I looked at my battery status it says it's only been 53miin since unplugged and I'm already down to 68% of battery left. what's the deal? Maybe I have a bum battery already. Who knows. I'm going to drain it all the way down and see if that makes any diff.
EDIT: ok, I just realized that the timer reset after I rebooted my device. I forgot that it does that. Also I just wanted ton add that I did not do any type of restore from a backup program.

How is your signal strength where you are?? Having a weak signal will DESTROY your battery (trust me my battery goes down more than 10%/hr in a ****ty signal area but when I get to a good signal area it barely drops 3-4% (and this with bluetooth streaming music the whole hour)).

ok today I reflashed the phone, didn't install any apps, went to work, had my phone on airplane mode for a while because signal strength SUCKS at my job so it drains my battery very quickly, but I ended up getting only 10 hours out of the battery before I had to switch.
I didn't install ANYTHING and still the same results.
I'm convinced, the EVO just doesn't have great battery life that people claim, it's decent for a smartphone, but nothing spectacular AT ALL!
kudosmog said:
and be careful wiping battery stats. Make sure the phone is at 100% charge (not just green light but actual 100%) and THEN wipe the stats. Then let the battery drain to 0 (to the point it shuts down on its own), and then charge back to 100%
That should get the battery back in line if you wipe the stats.
Click to expand...
Click to collapse
ok, see no one told me this part.
I've just read many times that if you've flashed a lot of roms, you should wipe the battery stats
strikeIII said:
Let me know what your findings are if this helps. I'm in the same boat your in, installed FRESH 3.2 and I'm also not getting these battery improvements everyone is talking about. I'm still using the original battery from when I bought the phone which was on release day.
Click to expand...
Click to collapse
same here, I'm using a stock battery (have an extended life battery on the way) and there's no noticeable change in my battery life
omegasun18 said:
i wouldnt expect a day and a helf with use. While some are reporting getting it many others dont. "moderate" to "heavy" use varies by person. Many of these reporting extremly lng battry life that detail there usage to me is very light usage.
Click to expand...
Click to collapse
yeah, I'll read where someone says "I get 48 hours with moderate use!" but when you find out what they did, a couple of THREE MINUTE PHONE CALLS and a few texts, MAYBE 5 minutes of web surfing, that's it. in 2 days that's all they did with their EVO - and then I think WTF IS THE POINT?!?!? Why would you spend 200 dollars on an EVO when you could have gotten a HERO for 30 bucks that does all those things you did in that 48 hours?
with that said you are getting pretty bad battery life. Instead of or before you go the route of taking a week to sintall your apps so you can check each one you may invest in system moniter. if you get the purchased version it has the ability to show you history of which apps are using the most battery power.
Click to expand...
Click to collapse
that sounds interesting, but how much is it?
Also while some people may take offense to this i put a lot of the battery statistics into the sketchy at best catagory. It is similar to benchmarks with computer geeks. We will run benchmarks constantly trying to figure out what gives the highest score. and then we normally exagerate it a bit when we brag because we want to sound like we have the best rig.
now i am not saying everyone is but i would take most of the outragous battery stats with a grain of salt. if someon tells you they get 50 hours with moderate usage regularly. Their definition of moderate usage is probably what most consider as light usage. (ie moderate usage for 2-3 hours of the 50)
Click to expand...
Click to collapse
I agree, either
A) me, my fiancé, my cousin, my 3 friends with EVO's ALL have defective units
B) the people who claim "moderate" usage are REALLY only having extremely light, barely any usage
or
C) these people are just telling boldface lies.
I've said this before on sprintusers and people argued with me all day saying I'M lying, but when you look at their screen shots showing this type of time, I poke holes all through their arguments, I've seen one where the poster claimed to have made a total of 40 minutes of calls, but there was no indication of voice calls in his screen shot, and android system only took up about 18% of the battery with cell idle and standby taking up the bulk of the juice. That alone tells you that the phone isn't doing anything and isn't being used.

Droga said:
How is your signal strength where you are?? Having a weak signal will DESTROY your battery (trust me my battery goes down more than 10%/hr in a ****ty signal area but when I get to a good signal area it barely drops 3-4% (and this with bluetooth streaming music the whole hour)).
Click to expand...
Click to collapse
when I'm at work signal strength SUCKS, so I keep the phone on airplane mode
when I'm home however, signal strength fluctuates between 3 and full bars

First off grab baked snack or CM6 both these roms have given me the best battery life of all time, then grab juice defender and setcpu, make sure everything is wiped and you are not restoring any apps that might potentially eat your battery, set setcpu to 245 when screen is off and let juice defender set up its own settings.
Just with this i had my phone off a charger for 16 hours straight and am only now at 50% this is with regular use for me which means on average texting all day (i am 17 its what i do XD ) a few brief phone calls and maybe an hour worth of data/wifi usage
there must be an app doing this because i had the same problem as you on baked snack even until i wiped everything and started new.
Currently im running cm6 and during my first few hours of school i wont touch my phone at all and it will maybe...mayyyybe drop 4-5 percent
Hope this helped anyway

[Q] Terrible battery no matter what... anyone else?

I've had 3 or 4 different evo's and it's been almost impossible to receive decent battery life on almost any rom. It started with CM6 and I switched even though I loved it and went to Baked Snack or some other rom that stated battery life, but it just always ends up dropping on me no matter what. I thought my expectations were too high, I just recently got my last replacement and it's now 3-4 days old. I heard how CM7 and Miui's latest had excellent battery life so I couldn't wait to test them. I first tried CM7 and as long as it's on stand by or not being used the battery was pretty decent I guess. That's with Green Power free running btw. when I turn the phone on to start using it, the percentages just drop. Tried Miui after hearing how good the new battery life is and almost the same thing.
So, that led me to believe it was due to some program, but for the most part I keep these stock. One of the first things I setup are a Gmail account, FB account setup... then of course my apps are added automatically hardly any widgets ever run. If anything it's Buzzbox, I've got beautiful widget's clock now. I use Vlingo, not sure if it's a hog. When I check the battery stats, there's nothing crazy or out of the ordinary. Anyways... there's got to be something wrong, I'm guessing. I've got a regular battery and an extended battery and they both do terrible. I'm going to install a rom from scractch with nothing loaded at all and test the battery. I hate to do that, because testing will take awhile especially with adding one program/widget at a time to monitor the percentages lost.
Here's a list of apps I normally have on my evo and run occassionally:
Vlingo
Green Power Free
Juice Defender (before green power and GB)
handcent
buzzbox
facebook
Swype
Google Services
Voicemail
Are any of these battery abusers without me knowing it?
I normally keep wifi on and connect to it over the 3g data, although I believe Green Power said it cant control the data on the GB roms as of now.
Today, I started with 98% with my extended battery, CM7 and now at 1:00PM I'm at 70% Minimal usage.
Sorry for the long post.
Bluetooth is off most time and Wifi like I mentioned usually is on, because I heard it uses less power than mobile.
sorry for the long post.
Just looking for some assistance.

Restore it to stock.
Calibrate your battery.
Use it for a few days without installing all your apps. If the battery still sucks, then you are probably going places that do not have signal and the phone is searching a lot. Check About - Battery for time without signal.

get a seidio 3500 mah battery and you will enjoy your phone with every little feature turned up to the max

iitreatedii said:
get a seidio 3500 mah battery and you will enjoy your phone with every little feature turned up to the max
Click to expand...
Click to collapse
I've got a regular battery and an extended battery and they both do terrible
Click to expand...
Click to collapse
It is a Seidio
Of course it's not as bad as the original, but watching the batter go down 10% while I'm using it is very disheartening. Awhile back, I was able to get decent battery life, but I can't remember what rom, it might have been Baked Snack like 1.6 lol, guessing anyway.

iitreatedii said:
get a seidio 3500 mah battery and you will enjoy your phone with every little feature turned up to the max
Click to expand...
Click to collapse
what kind of use do you receive with yours? What rom/kernel as well.

Try my rom with ziggy I've getting great reviews from my rom users nets 4.3 works great for my evos today as of now stock 1500 10.5 hours 34% extended 3500 10.5 hours still in the 90's stock had my maps on all day literally and extended barely touched it will post screenshots in a few
Stock
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Extended
Sent from my PC36100 using XDA App

Nuggyunlimited looks like he is onto something. I do not know if he has 4G or not?
I have had my best luck with mikFroyo.
What is going on with google maps? I have the same problem wiht MikFroyo

I am one of the heaviest users around, I stream pandora for about 8 hours , listen to music app about 2 to 3, check facebook and certain websites constantly, my two email acounts check every five minutes, my brightness is at 100 percent, my gps and location services are on, I'm overclocked...using 4.3 mikfroyo with sbc number 7...at the moment I'm using miui with sbc 7 for aosp roms, depends what you do, but either way no matter what kernal or rom you use I'll tell you, this battery will last you all day, this battery changed my evo experience...
edit: I don't use setcpu for profiles, just for overclocking, i dont use juice defender, the useless task killer or anything
edit 2: Conductive i had the same problem update to 4.4 or 4.3

conductive said:
Nuggyunlimited looks like he is onto something. I do not know if he has 4G or not?
I have had my best luck with mikFroyo.
What is going on with google maps? I have the same problem wiht MikFroyo
Click to expand...
Click to collapse
4g works with my rom and I've been using it most of the day I'll look into it for ya
Sent from my PC36100 using XDA App

iitreatedii said:
I am one of the heaviest users around, I stream pandora for about 8 hours , listen to music app about 2 to 3, check facebook and certain websites constantly, my two email acounts check every five minutes, my brightness is at 100 percent, my gps and location services are on, I'm overclocked...using 4.3 mikfroyo with sbc number 7...at the moment I'm using miui with sbc 7 for aosp roms, depends what you do, but either way no matter what kernal or rom you use I'll tell you, this battery will last you all day, this battery changed my evo experience...
edit: I don't use setcpu for profiles, just for overclocking, i dont use juice defender, the useless task killer or anything
edit 2: Conductive i had the same problem update to 4.4 or 4.3
Click to expand...
Click to collapse
Lol sounds like my average use but I use it even more
Sent from my PC36100 using XDA App

nuggyunlimited said:
Lol sounds like my average use but I use it even more
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
so let me get this straight, average use is 8 hours of pandora, 8 hours of sleep, and that leaves 8 hours for facebook and etc, so lets say 4 hours total for a guesstimate, leaving 4 hours of non activity of the phone being off. 20/24 hours is "average use". I mean this is not a competition of who uses theyre phone more, all im saying is that with this battery you can do pretty much whatever you want without caring with ANY rom or ANY kernal you want.

iitreatedii said:
so let me get this straight, average use is 8 hours of pandora, 8 hours of sleep, and that leaves 8 hours for facebook and etc, so lets say 4 hours total for a guesstimate, leaving 4 hours of non activity of the phone being off. 20/24 hours is "average use". I mean this is not a competition of who uses theyre phone more, all im saying is that with this battery you can do pretty much whatever you want without caring with ANY rom or ANY kernal you want.
Click to expand...
Click to collapse
No I use my bluetooth headphones for music from around 8am-6pm entire time I leave the house to the time I get home. Both facebook accounts every 15 minutes same with both.twitter accounts on xda off and on all day I.text a lot and use g talk a lot with a few calls I wasnt posting it as a battle I was actually just saying we get about the same times but I use the phone a little more and I was agreeing with you that the battery works wonders
Sent from my PC36100 using XDA App

i just got my evo after a hero.
the battery life is exactly what i expected. ive got a stock sense, rooted with clockwork.
i dont use widgets, no auto syncs. i have complete control over my device and it never leaves my hand. that being typed, i can get about 13 hours of up time.
yes, id like the battery to last longer but im not willing to have a fatty evo for the 3500mAh battery. I purchased a second stock battery, official HTC, so if Im gonna have a long day, ill have a battery with me.

nuggyunlimited said:
No I use my bluetooth headphones for music from around 8am-6pm entire time I leave the house to the time I get home. Both facebook accounts every 15 minutes same with both.twitter accounts on xda off and on all day I.text a lot and use g talk a lot with a few calls I wasnt posting it as a battle I was actually just saying we get about the same times but I use the phone a little more and I was agreeing with you that the battery works wonders
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
o okay i was just making sure, i was confused, and yeah, we seem to be heavy users, i cant kill a stock battery in 2-4 hours no joke

iitreatedii said:
o okay i was just making sure, i was confused, and yeah, we seem to be heavy users, i cant kill a stock battery in 2-4 hours no joke
Click to expand...
Click to collapse
Cool lol I just can't go through the day without music and I believe you pandora itself would kill a stock battery in about 4 hours I got a extended rugged case so the phone doesn't look funny with the big back lol
Sent from my PC36100 using XDA App

Ok, yesterday I loaded Miui with nothing additional except changing the LCD density to 200, green power (which is useless since wifi doesn't work with this kernel) and right now I'm at 14h, 49m since unplugged with 17% left (normal battery). That's with minimal to average use. I notice when I'm using it, I can watch the percentages just drop, so I guess it's functioning normally and it's due to just my usage and programs, I'm probably expecting too much from my battery, once again I guess. I'm going to try your rom next with my extended battery.

I know what stock battery users go through, and with heavy use they don’t last too long, but I’m now in a different, horrible place entirely and I have the 3500 mAh battery!
I know that something is clearly wrong with my Evo but no one seems to know what it is. As I said I’m also using a 3500 mAh battery, but not to any advantage. In fact I get considerably less usage with this now then I used to get with the stock 1500mAh battery, regardless of the ROM or kernel.
Current specs:
HTC EVO 4G, Hardware 0003
16GB Wintec Class10 MicroSD
SEIDIO 3500mAH Battery/Camera Protector
Calkulin's EViO 2 v1.7.7 (have run several different Sense and CM ROMs)
HTC kernel #15v7 (doesn’t matter, have tried stock and every TM, regular and SBC)
Quadrant ≈ 1365
Linpack ≈ 33.05 MFLOP
and…(drum-roll please)
Battery Life: 70% after 6 hours, literally next to no usage.
Before middle of last November, if I charged the phone fully (without the benefits of SBC), and then just unplugged it on a Saturday night and let it sit unused for like 19-hours, the charge would be around 89%, +/- 1%, with the stock battery. In that same scenario now the 3500 mAh battery would have shut the phone down long before 19-hours rolled around.
Yesterday, using the 3500 mAh extended battery, no phone calls, Bluetooth on for about 20-miutes this morning for the drive to work and was turned off upon my arrival, and I’ve sent and received 4-5 messages on GTalk. That’s it.
The current status:
Charge: 70%
5h 52min unplugged
Up time: 6:15
Awake time: 1:20
Battery Usage screen:
Cell Standby: 42%
Phone Idle: 43%
Android System: 8%
Bluetooth: 4%
Display: 3%
Phone runs great; everything works great, no other issues. It once fell about 10”-12” onto plush carpet (kitten attack). It was in the Sprint case with the stock battery then, and has not been dropped otherwise. If anything, I am ridiculously careful with it.
Something happened the middle of last November like a switch was flipped, and battery life has been horrible ever since. Since we got our Evos back in the very beginning of June, 2010, I don’t think that returning it to the Sprint Store was an option then or now.
No one seems to have seen anything like this or have any clue what the issue might be, but it was suggested that I RRU it back to original, update it to current and then test the battery usage. Then, basically just live with it and see if it helped. After that, I’ll re-root and get on with life, whether battery life is better or not.
Any constructive thoughts are welcome. Thank you for your time.
Note: my apologies is this constitues a thread hijacking; not my intention, just saw title of the thread and it sounds like my life.

nYdGeo said:
I know what stock battery users go through, and with heavy use they don’t last too long, but I’m now in a different, horrible place entirely and I have the 3500 mAh battery!
I know that something is clearly wrong with my Evo but no one seems to know what it is. As I said I’m also using a 3500 mAh battery, but not to any advantage. In fact I get considerably less usage with this now then I used to get with the stock 1500mAh battery, regardless of the ROM or kernel.
Current specs:
HTC EVO 4G, Hardware 0003
16GB Wintec Class10 MicroSD
SEIDIO 3500mAH Battery/Camera Protector
Calkulin's EViO 2 v1.7.7 (have run several different Sense and CM ROMs)
HTC kernel #15v7 (doesn’t matter, have tried stock and every TM, regular and SBC)
Quadrant ≈ 1365
Linpack ≈ 33.05 MFLOP
and…(drum-roll please)
Battery Life: 70% after 6 hours, literally next to no usage.
Before middle of last November, if I charged the phone fully (without the benefits of SBC), and then just unplugged it on a Saturday night and let it sit unused for like 19-hours, the charge would be around 89%, +/- 1%, with the stock battery. In that same scenario now the 3500 mAh battery would have shut the phone down long before 19-hours rolled around.
Yesterday, using the 3500 mAh extended battery, no phone calls, Bluetooth on for about 20-miutes this morning for the drive to work and was turned off upon my arrival, and I’ve sent and received 4-5 messages on GTalk. That’s it.
The current status:
Charge: 70%
5h 52min unplugged
Up time: 6:15
Awake time: 1:20
Battery Usage screen:
Cell Standby: 42%
Phone Idle: 43%
Android System: 8%
Bluetooth: 4%
Display: 3%
Phone runs great; everything works great, no other issues. It once fell about 10”-12” onto plush carpet (kitten attack). It was in the Sprint case with the stock battery then, and has not been dropped otherwise. If anything, I am ridiculously careful with it.
Something happened the middle of last November like a switch was flipped, and battery life has been horrible ever since. Since we got our Evos back in the very beginning of June, 2010, I don’t think that returning it to the Sprint Store was an option then or now.
No one seems to have seen anything like this or have any clue what the issue might be, but it was suggested that I RRU it back to original, update it to current and then test the battery usage. Then, basically just live with it and see if it helped. After that, I’ll re-root and get on with life, whether battery life is better or not.
Any constructive thoughts are welcome. Thank you for your time.
Note: my apologies is this constitues a thread hijacking; not my intention, just saw title of the thread and it sounds like my life.
Click to expand...
Click to collapse
Thats crazy my extended has on for 2 days 4 hours only used it for a hour and the battery is @ about 80% your. Your awake and bluetooth time are low your battery shouldn't die like that it might be the battery seidio.should replace it sounds like you've tried everything in the book
Sent from my PC36100 using XDA App

nuggyunlimited said:
Thats crazy my extended has on for 2 days 4 hours only used it for a hour and the battery is @ about 80% your. Your awake and bluetooth time are low your battery shouldn't die like that it might be the battery seidio.should replace it sounds like you've tried everything in the book
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Thank you for the input. I thought about that so I tried the 3500 mAh in my wife's stock Evo and it runs forever. I'm so envious! I've swapped her stock battery and mine and they both run the same in either phone.
In mine, the stock battery usage is proportional, too. Fully charged and unplugged at 6:00 AM and with absolutely zero usage, sleeping screen off the entire time, by around 2:00 PM the stock battery was at 41%. That was also with very minimal synching (I've tweaked those settings nicely), no bluetooth, etc. I believe that the awake time was like 36mins. Sick, but unfortunately not in a good way.
Since it can't hurt, I think that I may do the RUU thing this weekend and then re-root afterwards. It may not help, but its literally the only thing that I can think of that I haven't tried.
Again, thanks for your thoughts. Have a great day!

nuggyunlimited said:
Thats crazy my extended has on for 2 days 4 hours only used it for a hour and the battery is @ about 80% your. Your awake and bluetooth time are low your battery shouldn't die like that it might be the battery seidio.should replace it sounds like you've tried everything in the book
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Sorry, I've bypassed your rom for so long, but I've got it loaded now. Looking forward to trying it out. I can't lie I love and miss CM7 and Miui, but if my battery seems to last longer with a sense rom, then I'll be switching. So far it is very snappy and quick. Do you recommend I stick with the stock kernel or switch to something else? Do you use any setcpu, juice defender, green power or anything?
Do you have theme's as well?
Updating a titanium backup for my apps now.
I'll post back how it goes. I would say I had the same problem as the user above, but this has happened on mutliple phones and roms.
I know with a new phone you need to cycle the battery quite a few times. Someone told me roms were similar, even though I never understood why. Would you say that's true? In order to give the rom time to adjust to the battery and settings you need to give it 3-5 days?

[Q] Battery life/kernel question

I am currently using CM7 RC4 and have been reading through the CM forum for tips on how to improve my battery life. I must admit that I have tried various kernels (CFS and BFS as well as SBC and non) but nothing seems to really make a difference.
I average about 6 to 8 hours of battery life with light to moderate use. The most time I spend really using the phone is for the 2+ hours when I go to the gym and use Pandora. Besides that, I send some texts, browse the web and use Facebook. I know that there are a lot of variables when it comes to interpretation over how much use of a phone is "a lot" but still.........I hate how quickly my battery drains.
In one instance, I went to bed at 1 a.m. with 99% charge (having been off the charger only 30 minutes) and when I woke up at 8:30, I was already down to 57% with high Cell Standby as well as Android System.
I have now gone through and done the change on my phone to set the radio to "CDMA Only" as well as disabling Auto Sync.
I am currently using SavageZen Kernel CFS 0.2.1 and will report back on how it does overnight but.....definitely not holding my breath.
Any helpful tips are appreciated.

BatmanCia said:
I am currently using CM7 RC4 and have been reading through the CM forum for tips on how to improve my battery life. I must admit that I have tried various kernels (CFS and BFS as well as SBC and non) but nothing seems to really make a difference.
I average about 6 to 8 hours of battery life with light to moderate use. The most time I spend really using the phone is for the 2+ hours when I go to the gym and use Pandora. Besides that, I send some texts, browse the web and use Facebook. I know that there are a lot of variables when it comes to interpretation over how much use of a phone is "a lot" but still.........I hate how quickly my battery drains.
In one instance, I went to bed at 1 a.m. with 99% charge (having been off the charger only 30 minutes) and when I woke up at 8:30, I was already down to 57% with high Cell Standby as well as Android System.
I have now gone through and done the change on my phone to set the radio to "CDMA Only" as well as disabling Auto Sync.
I am currently using SavageZen Kernel CFS 0.2.1 and will report back on how it does overnight but.....definitely not holding my breath.
Any helpful tips are appreciated.
Click to expand...
Click to collapse
First, make sure you've done this: http://forum.xda-developers.com/showthread.php?t=712990
Also, turn off your back up data to Google servers in settings > privacy.
I've had it off for a good 5 hours or so and my battery life has already drastically improved.

To be honest dude, without an extended battery man that's about the best you're going to get. I consider myself a moderate-heavy user and I work from 8am-5pm. My battery is unplugged at 7am and when I get off at 5pm its on about 20% on my way home. I've tried just about EVERY rom(aosp/sense) along with EVERY kernel combination out there. I browse web, constant text, twitter, Facebook, email, maybe a game and I've never witnessed anything greater than what I posted above. No matter what people say to you about how great their battery life is or how its been running for 18hrs its all BS(w/ reg battery). Yeah if your phone is sleeping 90% of the time then yeah its believable, but for users like us 6-8 is about the best with a normal battery. Now a buddy of mine has the sprint extended battery; dude uses the hell out of his phone and can honestly say his phone last about 17 hours of power usage.
My tip would be to invest in an extended battery if you want more than 6-8 hrs.
Sent from my PC36100 using XDA Premium App

Lol this is far from the truth. I avg 18-20 hrs with moderate use.
dirkyd3rk said:
To be honest dude, without an extended battery man that's about the best you're going to get. I consider myself a moderate-heavy user and I work from 8am-5pm. My battery is unplugged at 7am and when I get off at 5pm its on about 20% on my way home. I've tried just about EVERY rom(aosp/sense) along with EVERY kernel combination out there. I browse web, constant text, twitter, Facebook, email, maybe a game and I've never witnessed anything greater than what I posted above. No matter what people say to you about how great their battery life is or how its been running for 18hrs its all BS(w/ reg battery). Yeah if your phone is sleeping 90% of the time then yeah its believable, but for users like us 6-8 is about the best with a normal battery. Now a buddy of mine has the sprint extended battery; dude uses the hell out of his phone and can honestly say his phone last about 17 hours of power usage.
My tip would be to invest in an extended battery if you want more than 6-8 hrs.
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
Sent from my HTC Evo running CM7

@swaze
Define moderate use! My screen on my evo gets turned on like every 5 or 10 mins while wifi usage sits at 40% and the screen is constantly at 50%. My phone lasts me through work with pretty moderate/heavy usage(7-9 hrs) and I'm happy with my battery simply because it's not going to get better(regular batt). Now if your display never gets passed 20% then you're not using your phone buddy.But, if you're using a REGULAR battery and you're actually getting 18 hours feel free to post pics or no one cares to hear about this make believe 18 hours. Please do share how you actually use your phone; how are you achieving such great results cause as of right now you're just one of those randoms who come in and say **** like" durrrr I get 18hrs on my phone, but I post no pics to back it up". PICS OR IT DIDN'T HAPPEN
Sent from my PC36100 using XDA Premium App

The best option I could suggest would be search E-bay for a 3500 MaH extended battery. They run about $.01 with about $9.99 shipping from China. If you need help I can send you a link to one of the auctions. Also make sure things like auto-brightness isn't enabled and that things are syncing a ridiculous amount of times per day. Good Luck.

Ive been running CM7 for a couple weeks battery life started going down hill fast.
My fix was to get new HTC battery for $7 on Ebay problem solved.

Just try turning the Google backup off.

I get from 10hrs to 15 but I turn off the day when I'm not using it and have my CPU set to run a at different speeds
Sent from my PC36100 using XDA App

Bro I bought a 3500+ battery from eBay and it lasts me about the whole day, this is with the exception with 3G on and heavy texting, moderate browsing and heavy and I mean "heavy" application use during the end of the day. On other days when I'm not texting I'm watching videos on youtube with the 4G on, this last for about 30 - 60 minutes top!. So whats my point? Say thing like you said, "My tip would be to invest in an extended battery if you want more than 6-8 hrs."
pictures Below :

Im not sure what kernels are being used that are tossing out such ruff battery life but SavagedZen-1.0.0-CFS-HAVS-WiMAX-GB-noSBC is treating me right.
Simple performance setting in CM changing governor can get the job done adding many hours of extra battery life.
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Smartass setting is great performer to say the least power packed battery saver.

Not sure if apps available but it would be nice if governor had timer settings were user could set what governor they want to run at what time automatically.
Example would be after 11pm power-save governor kicks in then returns to Smartass from 7am - 12pm etc.
If such apps available...maybe I'm missing setting in CM someone please let me know

sling said:
Not sure if apps available but it would be nice if governor had timer settings were user could set what governor they want to run at what time automatically.
Example would be after 11pm power-save governor kicks in then returns to Smartass from 7am - 12pm etc.
If apps available...maybe I'm missing such setting in CM someone please let me know
Click to expand...
Click to collapse
Closest you're going to get to that is setcpu man. It does just about everything you just mentioned. There's a donate version in the market and a free version that the dev puts up for xda users try google search you'd find it in a heartbeat.
Actually I'm feeling nice. The latest version is 2.1.1.
http://forum.xda-developers.com/showthread.php?t=505419
Sent from my PC36100 using XDA Premium App

dirkyd3rk said:
Closest you're going to get to that is setcpu man. It doesn't just about everything you just said. There's a paid version in the market an a free version that the dev puts up for xda users try Google search you'd find it in a heartbeat.
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
Right on used app in the past but didn't get to deep into it.
Maybe CM will add feature stock simplifying it.

sling said:
Right on used app in the past but didn't get to deep into it.
Maybe CM will add feature stock simplifying it.
Click to expand...
Click to collapse
Actually I'd say its pretty simple enough in cm7 and I think it should probably stay that way to be user friendly to the not so savvy rooter lol. But above you stated you wanted more control of your kernel pretty much; setcpu gives you total control. You can set a diff governor profile for diff actions(plug, unplug, screen off), battery percentages, etc. I'd say give it a shot.
Sent from my PC36100 using XDA Premium App

Battery Life

What kind of usage are you guys getting out of your SGS2's now ?
I took my phone of the charger at 7 am today & it died at 2 pm. had minimal usage - a few texts, pic message, a call, and 5 mins of GPS use.
I have bullet kernel, stock rom (GB 2.3.5)
7 hours of minimal is pretty bad. really shouldn't be the battery after only 8 months, but i will probably pick up a new one anyway

I can get up to 20 hours of battery for what i consider moderate use. What really shows the usage is the screen on time. I can get between 3.5 hours - 4 hours of screen/display on time. ( see in your system battery info). (I could not break 2.5 hours display on time on my HTC One S so I sold it)
After ICS update my battery life sucked until i master reset. Now I am back to normal.
I am running and have been running stock roms. In the past I was a flash junkie... but this phone has never needed an aftermarkey ROM. It has always run flawlessly stock.

I'm getting around 18-20 hours with moderate usage. I mostly just browse on the internet during downtime at work, which can be more than a few hours straight.
I'm was using Juggernauts v5.0 up until today. Just flashed Darkside v4. We'll see how it holds up.

motorjonny said:
I can get up to 20 hours of battery for what i consider moderate use. What really shows the usage is the screen on time. I can get between 3.5 hours - 4 hours of screen/display on time. ( see in your system battery info). (I could not break 2.5 hours display on time on my HTC One S so I sold it)
After ICS update my battery life sucked until i master reset. Now I am back to normal.
I am running and have been running stock roms. In the past I was a flash junkie... but this phone has never needed an aftermarkey ROM. It has always run flawlessly stock.
Click to expand...
Click to collapse
Agreed!! I tried out other ROMs when I first got my s2 but as you said, it never needed an aftermarket ROM ...I do however use Bullet kernel and notice a substantial difference on "lag free" setting
But 20 hours !?!? ...i think mb i can get that much if I don't touch my phone even once. hmm ..i guess i will give tracking the screen on time & seeing if I fall in that 4 hr range

ashens said:
I'm getting around 18-20 hours with moderate usage. I mostly just browse on the internet during downtime at work, which can be more than a few hours straight.
I'm was using Juggernauts v5.0 up until today. Just flashed Darkside v4. We'll see how it holds up.
Click to expand...
Click to collapse
hmm ...seems like i am getting a third of what i should be getting on minimal usage, not even moderate. had the phone 8 months & alternate batteries and even w/o doing that, the stock battery should be fine after only 8 months ...wonder why i get such poor battery life now

wrestlerkid said:
hmm ...seems like i am getting a third of what i should be getting on minimal usage, not even moderate. had the phone 8 months & alternate batteries and even w/o doing that, the stock battery should be fine after only 8 months ...wonder why i get such poor battery life now
Click to expand...
Click to collapse
Any luck improving your battery life?
I have the Telus version and have always had about 12 - 16 hours with minimal usage on the stock rom which is pretty bad. I recently flashed CM9-beta1 and I'm lucky to get 6-8 hours like yourself. I love cyanogenmod but this is unacceptable.

This is my results with AOKP whitehawkx kang 7/15, darkside AOKP kernel #2, CPU sleeper 2.3
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Sent from AOKP Goodness :-D

ashens said:
I'm getting around 18-20 hours with moderate usage. I mostly just browse on the internet during downtime at work, which can be more than a few hours straight.
I'm was using Juggernauts v5.0 up until today. Just flashed Darkside v4. We'll see how it holds up.
Click to expand...
Click to collapse
How much screen on time is that? People need to realize that just saying how long your phone lasts means nothing without screen on time. I will usually get around 3 hours screen on time, whether that be me using moderately for 15 hours, or heavy usage for 4 hours, screen on time will always be around 3 hours
Like today I had off and have been using my phone a lot
Now if I had worked my phone would probably be at 70 with like an hour of screen on time.
Sent from my SGH-T989 using
Tapatalk 2

The problem with your battery running low quick is because you are running Gingerbread! Ice Cream Sandwich runs faster and has 70% better battery life! I have went 18 hours on moderate usage and about 14 hours on more harder use! As for light usage I have went 2 days on a full charge!
I just HIGHLY suggest that you switch over to either stock ICS or a Customized ROM!

JALStudios said:
The problem with your battery running low quick is because you are running Gingerbread! Ice Cream Sandwich runs faster and has 70% better battery life! I have went 18 hours on moderate usage and about 14 hours on more harder use! As for light usage I have went 2 days on a full charge!
I just HIGHLY suggest that you switch over to either stock ICS or a Customized ROM!
Click to expand...
Click to collapse
Like I said saying how long the battery last means nothing without screen on time. And I disagree, I had much better battery life on Gb than on Ics
Sent from my SGH-T989 using Tapatalk 2

Ugh, not another battery life thread -.- smh..
Battery life is not determined by ROM, Kernel, or usage statistics. Yes it has a general impact but not nearly as much as...
LOCATION!
When your phone switches from HSPA to EDGE or any other service type, that initialtes a wake lock, uses power to switch frequencies. Uses power to update the ROM and all apps that you are now on whatever frequency. Now it does that all the time you switch from HSPA, HSPAP, EDGE, GPRS. So if your in a place with excellent signal then yes your battery life will be much better than in a place with low to no HSPA cause then your phone is constantly switching signals.
About GB and ICS, generally speaking ICS will be better at battery handling and power consumption. When i had CM7 on my HD2 in airplane mode, running not nothing but wifi, then again on CM9, CM9 lasted about a half day longer.
But again, location is more important then screen on times and battery life lengths.

If you really care about your battery life, just get an extra battery and portable charger. Doesnt make since to get a smartphone and not use it because your worried about battery life.
Sent from my SGH-T989 using xda premium

I can usually get around 24 hours out of a charge on a normal day running AOKP.

Exchanging mine tomorrow - battery plummeting randomly!

I've been troubleshooting this problem for weeks now - have never found a cause. I did a hard reset yesterday and have only installed the mainstream necessary apps - nothing sketchy or buggy at all.
My battery life is usually great and when unused drops less than 1% per hour...until suddenly it goes crazy and starts dropping ~10%/hour with NO USE.
I think perhaps something is wrong with my radio as the "mobile network signal" graph in the picture below is always spotty and shows the radio off for significant chunks of time when I know it's on. When these battery plunges start happening, it shows the radio as solid on, as you can see below...and reports the battery drain is from the radio.
A reboot fixes it but it comes back randomly within a day or two...the problem is that I can leave the phone unused for an hour to make dinner and when I pick it up next it has dropped a significant amount!
Hopefully AT&T will exchange it for me tomorrow and I will have better luck...I bought it on June 28th and tomorrow is July 28th...the 30th day, by my count.
Uploaded with ImageShack.us

16hrs on battery and still at 43% is pretty darn good if u ask me.

This has happened to me too on stock and AOKP. Just happened again a couple of hours ago.

So I did the exchange 4 days ago. Have not rebooted since then. Thought I was in the clear until this afternoon when the battery started to plummet again...I updated the screenshots in the first post with today's data. Very disappointed and not sure what to do now except to try and do a hardware reset and use the phone stock with no apps for a few days and see what happens...

You are most likely suffering from almost famous "Gsiff_daemon"
Use BetterBatteryStats to see what's draining your battery.

torred said:
You are most likely suffering from almost famous "Gsiff_daemon"
Use BetterBatteryStats to see what's draining your battery.
Click to expand...
Click to collapse
I have used it extensively. Posted numerous logs and screenshots in the developer's thread and had them examine it...no one could figure anything out.
Tonight I have watched it plummet again. I turned off wifi - it kept dropping. I turned off mobile data, it kept falling just as fast. Lastly I turned on airplane mode and it seems to have leveled off...seems to me the phone radio is the culprit but I have no clue what it could be doing!

(Forgive me if I'm hijacking)
I scooped up my SG3 on Sunday, and noticed almost immediately that my battery drops pretty quickly. I haven't rooted yet, and needless to say haven't flashed anything on it. I'm completely bone stock. I guess I'm wondering the same thing, in that I may need to return to AT&T. I lost as much as 70% in almost 8 hours with moderate to heavy use (Web browsing, textibg, a few calls, etc).
Something else: there is an orange sticker on the box it came un, much like a price tag at a retail store. On the sticker it reads: "REMATE 7.11.12" and has me wondering if this is a refurb they unloaded on me. Any ideas about the battery or this stupid aticker?
Sent from my SAMSUNG-SGH-I747 using xda premium

I notice that my battery life seems very unstable - one day it goes 10 plus hours no problem, the next day with the same usage its dying at 8 hours. The phone went bezerk this weekend, to the point of multiple reboots and just turning the thing off since it was unuseable. Factory reset over the weekend, wow ! Battery life is rocking 12 hours easy with heavy use.
The software on this phone is strange to say the least -

Apex_Strider said:
I lost as much as 70% in almost 8 hours with moderate to heavy use (Web browsing, textibg, a few calls, etc).
Click to expand...
Click to collapse
Yep, your battery dies after using your phone a lot. Hmmmm.

Igotsanevo4g said:
Yep, your battery dies after using your phone a lot. Hmmmm.
Click to expand...
Click to collapse
The reason I say this, is because of the fact I've heard of 12 to 14 hours or more of battery with the same (mostly) moderate to (occasional) heavy use. I understand that usage = battery discharge, I'm not a fool.
Sent from my SAMSUNG-SGH-I747 using xda premium

my battery usually only lasts 12 hours with minimal use, the only way i can go more than 8 hours is if i switch on airplane mode while i know im not going to need my phone.. while at work.

TRusselo said:
my battery usually only lasts 12 hours with minimal use, the only way i can go more than 8 hours is if i switch on airplane mode while i know im not going to need my phone.. while at work.
Click to expand...
Click to collapse
So perhaps I'm worrying over nothing (hopefully). I have been doing full charge to full discharge cycles and charging once it shuts down to "gel" or "season" the battery. But, there still remains the question of what the "REMATE" sticker is all about. It clearly has a date printed on it, which strikes me as odd...
Sent from my SAMSUNG-SGH-I747 using xda premium

So check out this graph...update of the earlier one.
-turned off wifi - plummet continued.
-turned off mobile data - plummet continued.
-turned on airplane mode to turn off the radio - battery stabilized. You can see the plateau towards the end.
-turned off airplane mode - plummet resumed as you can see.
Any conclusions I can take from this? It seems like it's the phone radio/standby and not apps...
http://img528.imageshack.us/img528/6889/20120802000137.png
Uploaded with ImageShack.us

Apex_Strider said:
The reason I say this, is because of the fact I've heard of 12 to 14 hours or more of battery with the same (mostly) moderate to (occasional) heavy use. I understand that usage = battery discharge, I'm not a fool.
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
Of course but battery loss is a corollary response to usage. Who made the rules on what moderate or heavy usage is? Besides other factors like strength of signal, etc.
That said I personally average 10-12 hours with 4hrs of screen on time.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

jeffreii said:
So check out this graph...update of the earlier one.
-turned off wifi - plummet continued.
-turned off mobile data - plummet continued.
-turned on airplane mode to turn off the radio - battery stabilized. You can see the plateau towards the end.
-turned off airplane mode - plummet resumed as you can see.
Any conclusions I can take from this? It seems like it's the phone radio/standby and not apps...
http://img528.imageshack.us/img528/6889/20120802000137.png
Uploaded with ImageShack.us
Click to expand...
Click to collapse
Didn't see this mentioned, the stock rom had a cell standby bug where it drops by 32(whatever the measurement is) instead of what's supposed to be 3.2. This has effected me before and there are fixes.
Sent from my SGH-I747 using Tapatalk 2

TRusselo said:
my battery usually only lasts 12 hours with minimal use, the only way i can go more than 8 hours is if i switch on airplane mode while i know im not going to need my phone.. while at work.
Click to expand...
Click to collapse
Juice Defender Ultimate works great for me at work. Shuts off my data radio while screen is locked.
The location for wifi(allowing it to control wifi) is a little funky so I stopped using it(and suffered a little in the beginning because i kept forgetting to turn off wifi at night)
You can see how much my phone goes into deep sleep mode - This shows last night when I went to bed
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This is my battery graph - note that sharp drop was last night when I was installing the Google Wallet fix and the dev had an issue with the update. Took me a little while to figure it out as you can see.

corythug said:
Didn't see this mentioned, the stock rom had a cell standby bug where it drops by 32(whatever the measurement is) instead of what's supposed to be 3.2. This has effected me before and there are fixes.
Click to expand...
Click to collapse
That doesn't explain why the actual battery it dropping so fast. I suppose it could skew the "reason" the system gives for the battery drop...but it's further proven by the fact that the only way to stop the drop is to turn off the radio - even turning off mobile data alone does not stop it at all.
nest75068 said:
Juice Defender Ultimate works great for me at work. Shuts off my data radio while screen is locked.
The location for wifi(allowing it to control wifi) is a little funky so I stopped using it(and suffered a little in the beginning because i kept forgetting to turn off wifi at night)
You can see how much my phone goes into deep sleep mode - This shows last night when I went to bed
This is my battery graph - note that sharp drop was last night when I was installing the Google Wallet fix and the dev had an issue with the update. Took me a little while to figure it out as you can see.
Click to expand...
Click to collapse
Your sharp drop is correlated to heavy screen on time. Mine is correlated to nothing...just sitting there with the screen off and nothing happening that I can tell.

I reported this problem back in June. This same exact thing happens to mine. Normally the battery is awesome, but sometimes it starts discharging at a crazy rate at which point I restart thee phone to fix it.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

torred said:
You are most likely suffering from almost famous "Gsiff_daemon"
Use BetterBatteryStats to see what's draining your battery.
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That's definitely my problem. When gsiff_daemon hasn't gone crazy the battery life is very good. I've only had the phone 3 days now and on the second found the battery discharging quickly when the phone was in standby (like the OP). I diagnosed this to be caused by gsiff_daemon. Seems to happen after the phone stops responding to input then does a warm restart. I only found one thread on this issue on one of the other S3 forums at XDA (TMo or global?)
Is there any sign of a fix for this? This is making an otherwise excellent phone horrible. I tried to relate this problem to Samsung through their support site, but just got a generic robot answer. Samsung's support site appears to be useless. Is there any indication Samsung is even aware of these problems?

I use System Tuner to check for gsiff_daemon going nuts. I normally notice it because my phone gets hot. If you use the Task Mgr from System Tuner and turn on display of kernel processes, it will pop right to the top if that's your problem.
The easiest way to deal with the problem when you notice it is to kill the process with System Tuner. It will start up again, but will not longer pin your CPU. A restart also works, but takes longer (and uses more battery).
You might also want to set up the Watchdog app to notify you when gsiff_daemon goes nuts.
I noticed you posted BBS logs, but gsiff_daemon will show up in Process, which doesn't appear to be logged (at least it isn't in the log in just dumped from my BBS).
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