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Update and FIX!
My phone is no longer draining massive amount of batt life when idle (3-5% after 7 hours of idle), android system usage is now down to 5-15% instead of 78-97% from before.
My fixes.
1. Turn off data syncing
2. Turn off wifi while on the road (so wifi doesn't constantly look for signals).
3. Clear memory
Yes, att installs a lot of bloatware that constantly update for changes.
If killing those services AND disabling data syncing doesn't help your problem, then you have a kernel problem (like myself).
If this is the case, do the following:
1. Take phone back to att and get a replacement
OR
2. Re-flash your android with the STOCK kernel found here
http://forum.xda-developers.com/showthread.php?t=1286432
OR
3. Reflash with cognition x2 (reported to solve a member's problem, I didn't try this myself).
NOTE** This will root your phone, you will NOT get the exclamation mark during boot up, but kernel counter may be at "1" after this process.
Re-flashing my phone AND applying the three tricks I mentioned above worked for me..finally my phone is no longer crippled with crappy battery life and recharging is A LOT faster now.
I must be going crazy but this sg2 is killing me. I got it from Att yesterday and the battery life has been pretty HORRIBLE. (First time android user btw).
The phone will eat up 10% of my batter life after only 90 mins of idle. I checked the battery usage and Android OS is at around 78%!!! How do I fix this problem? I downloaded OS monitor and didn't really see anything that uses a lot of CPU, except for certain files syncing from time to time (but 2-3% usage usually).
Checked with battery spy and apparently the majority of the time, the phone was hovering around 200mhz 70% of the time and not deep sleep.
It's sad to have only 1.5 hours of display time with a battery of 45% left (7 hours total time)...coming from an Iphone 3gs, this is just unacceptable. I almost flashed to the 2.3.5 firmware but noticed it's NOT compatible with ATT's version of SG2.
I see people who have a total time of 2 days AND a screen time with 3 hours with 30% battery left. I wish I can get half that!
Running on 2.3.4, can't be the infamous drainage bug right? Thought that only happens with the 2.3.3s
Wifi on, application sync on, GPS off, brightness at 25%, using live wallpaper (the windmill). No active apps on. Downloaded aim, epocrates, battery monitor, cpu spy, and os monitor..rest of the apps are stock.
Update
According to my CPU spy
For the past hour that the phone was in idle
2:20mins at 1200mhz
4:52mins at 1000mhz
8:33 at 800mhz
1:28 at 500mhz
10:11 at 200mhz
33:36 in deep sleep
Currently Android CPU usage is @ 97%, display time of 7mins(2%)
2h 30mins since last charge (97% charge)..current power is 79%. Did nothing but idling and checking battery life.
So...that's 30 mins out of the hour in which my idling cellphone was hacking the pentagon....
Also the cellphone is a tiny bit warm to the touch (not cold)
I have 35% battery life remaining and have been unplugged for nearly 11 hours. This is significantly better than what I was getting with a Thunderbolt on Verizon, where I was needing to charge after about six hours of use. 11 hours and 35% remaining isn't the best in the world, but it's only been two days. The phone needs a few days to charge and discharge to determine true battery stats and will probably get better.
Being that this is your first Android battery life will not seem great but let it settle in for a few days it should get better.
Sent from my SAMSUNG-SGH-I777 using xda premium
Used Nexus S, LG Thrill, Samsung Focus, Infuse, This is the best Android phone for battery. I have 40% left with normal use (emails, calls, music, read news) at the end of the day. Huraaaaa
Singuy1234 said:
I must be going crazy but this sg2 is killing me. I got it from Att yesterday and the battery life has been pretty HORRIBLE. (First time android user btw).
The phone will eat up 10% of my batter life after only 90 mins of idle. I checked the battery usage and Android OS is at around 78%!!! How do I fix this problem? I downloaded OS monitor and didn't really see anything that uses a lot of CPU, except for certain files syncing from time to time (but 2-3% usage usually).
Checked with battery spy and apparently the majority of the time, the phone was hovering around 200mhz 70% of the time and not deep sleep.
It's sad to have only 1.5 hours of display time with a battery of 45% left (7 hours total time)...coming from an Iphone 3gs, this is just unacceptable. I almost flashed to the 2.3.5 firmware but noticed it's NOT compatible with ATT's version of SG2.
I see people who have a total time of 2 days AND a screen time with 3 hours with 30% battery left. I wish I can get half that!
Running on 2.3.4, can't be the infamous drainage bug right? Thought that only happens with the 2.3.3s
Click to expand...
Click to collapse
If you only got the phone yesterday, its way to early to make any judgments on battery life. Battery needs at least 3-5 days to settle in and build consistent battery stats.
Also, what are you settings? Auto Brightness, Bluetooth, GPS, auto syn(exchange emal, gmail, facebook, etc). If your not using these, they should be OFF. It's easy to manually refresh email, etc.
I've seen some people reporting very high Android OS(over 50%) but still getting solid battery life.
I'm at 1hr display time, heavy texting. 72% left, been unplugged for 12hrs
no people what this guy is talking about is the android os bug. i have it too. hopefully an upgrade or different rom will fix it. my phone has been unplugged 11 hours with only 1 1/2 hour display but android os has ran for 52 minutes and now im at 32% battery life. once this bug gets worked out the battery life will be amazing.
I don't think that there is an android OS bug. My android OS shows as being 42% with 13hrs of moderate use and I am still at 67% battery remaining. This is by far the best battery use I have ever experienced on an android device! My cappy would not even come close to this performance and this is on stock ROM and kernel.
Sent from my SAMSUNG-SGH-I777 using xda premium
I'm very happy with mine, this was the first total drain on a new battery so I know it will only get better.
Total time: 18hr 25min
Display time: 4hr 48min
I think it's the system os, not the hardware. There were a few times when the battery didn't discharge itself at 7%/hour (had it idle for 3 hours and it went down like 2%).
And yes, everything is turned off except the sync app data and wifi. There's no option to turn off 4g btw. It's just weird how sometimes it's in this mode of power drainage, and then sometimes it doesn't drain much..but most of the time, it's draining.
I seriously doubt the phone can only run 2.5 hours worth of heavy usage or 12 hours of standby (it should last days!). If this is "normal" for android, then maybe I should have a visit back to att and exchange for an iphone (and I really don't to!)
Sledutah said:
I'm very happy with mine, this was the first total drain on a new battery so I know it will only get better.
Total time: 18hr 25min
Display time: 4hr 48min
Click to expand...
Click to collapse
that is freakin incredible. i am gonna try a restore or something im down to 28% life. 1:40 display android os 1 hour.
can you please post the cpu total time in android os so i have an idea
VFO said:
I don't think that there is an android OS bug. My android OS shows as being 42% with 13hrs of moderate use and I am still at 67% battery remaining. This is by far the best battery use I have ever experienced on an android device! My cappy would not even come close to this performance and this is on stock ROM and kernel.
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
can you please post the cpu total time in android os so i have an idea
VFO said:
I don't think that there is an android OS bug. My android OS shows as being 42% with 13hrs of moderate use and I am still at 67% battery remaining. This is by far the best battery use I have ever experienced on an android device! My cappy would not even come close to this performance and this is on stock ROM and kernel.
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
I agree - as I said in the Android OS drain thread, even in "good" situations, Android OS displays way high on our systems. I think it's a reporting bug.
I dropped 2% in 5.5 hours completely idle (sitting on my shelf) last night - Android OS was at over 60%. It seems that so far for me, the higher it is, the better my battery life is.
I drop around 15-20% in 9 hours of being mostly idle at my desk at work - it's a weak-signal location so the radio eats much more battery.
One thing is that unlike first-generation GalaxyS devices and interim ones like the Infuse, the GS2 has a coulomb-counter type of battery gauge. This type of gauge sometimes needs to be calibrated with multiple charge/discharge cycles or it will misreport battery state of charge. (However, when calibrated, it's much more accurate.)
Edit: I do have some power management tweaks in the kernel I'm running, but they don't make that much off a difference except in some high-drain corner cases in my experience. I'll be releasing it sometime later this week depending on how well these antibiotics do their job.
Do i need to install a battery app to see the percentage? or we have a way?
Install this app:
http://forum.xda-developers.com/showthread.php?p=15869868#post15869868
If you see "DataTracker-FD" or "Fast Dormancy" as the top wake lock, go into dialer
dial *#*#9900#*#*
disable Fast Dormancy (FD).
By default, the Samsung Galaxy S II has Fast Dormancy support enabled. One of the goals of Fast Dormancy is to increase the battery life of a device, by limiting the amount of signaling between the phone and the cell network. But, when Fast Dormancy it is not enabled in the network and is enabled on the phone it ironically works the other way around, and actually drains more battery than before.
Click to expand...
Click to collapse
That applies to the I9100.
As far as I can tell, the I777 has FD disabled by default. (This may change once I9100 ROM ports start showing up)
Okay, charged my battery to 97%(I got a beep saying it's fully charged). Idled for the past 2 hours and 22 mins. Battery is at 86%.
According to the battery, my screen account for 2%, and the android system accounts for 97%.
This is a stock phone guys, I have no apps installed!
Entropy512 said:
One thing is that unlike first-generation GalaxyS devices and interim ones like the Infuse, the GS2 has a coulomb-counter type of battery gauge. This type of gauge sometimes needs to be calibrated with multiple charge/discharge cycles or it will misreport battery state of charge. (However, when calibrated, it's much more accurate.)
Click to expand...
Click to collapse
How do you calibrate it?
sweetboy02125 said:
Do i need to install a battery app to see the percentage? or we have a way?
Click to expand...
Click to collapse
Settings > About phone > Battery usage
WillEat4F00d said:
How do you calibrate it?
Settings > About phone > Battery usage
Click to expand...
Click to collapse
I'm talking about live battery display. I installed no lock and have no lock screen to see how many % left.
sweetboy02125 said:
I'm talking about live battery display. I installed no lock and have no lock screen to see how many % left.
Click to expand...
Click to collapse
Just search up "battery indicator" in the Market and you'll get a few to choose from.
I too got mine yesterday and started tinkering around with installing apps and such to test out all functions before I rooted it and move onto cm7 most likely. The 1 things I noticed was that the battery was NOT completely full when it was first turned on at the store so once it got a little lower after playing with it I charged it up overnight. Today the battery was WAY BETTER and was not dead yet. I have been using it NON STOP today, rebooting it, testing it, trying to root it, rebooting some more, some time using tango to test it out, watched a Netflix movie, pretty much taking full advantage of it all day. I finally decided to charge it up and use my Captivate a bit. I didn't keep track of usage and times today but I KNOW it lasted a WAY LONGER time with all I was doing with it than my Cappy. Tomorrow I will check more out possibly before putting on a rom.
So LOOOONNNNGGGG STORY short make sure you charge it up once you get it before messing with it too much and then it will LAST LONGER.
Sent from My KickAss Captivated CM7 OC'd 1.5Ghz/Undervolted
After two nights of completely draining then recharging the battery to full, the battery has gotten significantly better. I'm trying to drain it again before I go to bed tonight but I don't think I'll make it.
I played the entirety of Toy Story 3 on max brightness, and only burned 20% of the battery!
I ,am on it a lot, between GPS and general usage, ,but this still seems like too fast to drain compared to what others here have said. I had this problem with my Atrix too, maybe i am just destined for bad luck with battery life
Do you use anything like juice defender. This app literly doubled my battery life!
Sent from my SGH-I717R using xda premium
Dillsnik said:
I ,am on it a lot, between GPS and general usage, ,but this still seems like too fast to drain compared to what others here have said. I had this problem with my Atrix too, maybe i am just destined for bad luck with battery life
Click to expand...
Click to collapse
how much screen on time do u get?
Cozzeck said:
Do you use anything like juice defender. This app literly doubled my battery life!
Sent from my SGH-I717R using xda premium
Click to expand...
Click to collapse
Apps like that only increase standby battery life. Everything else is very minimal.
And I'm not happy with the battery life either. My phone is plugged in right now and the battery is actually going down as I use it.
Ready for the HTC One X
Sent from my SAMSUNG-SGH-I717 using Tapatalk
This happened to me since i first got the phone it has slowed down and now the phone can last through the day ever since at&t throttled me for this month goes without saying ill take it easy next month. so most likely if your in an lte area thats the problem
Maroon Mushroom said:
Apps like that only increase standby battery life. Everything else is very minimal.
And I'm not happy with the battery life either. My phone is plugged in right now and the battery is actually going down as I use it.
Ready for the HTC One X
Sent from my SAMSUNG-SGH-I717 using Tapatalk
Click to expand...
Click to collapse
If it's notbthe stock charger you areblikely not using a rapid charger.
Sent from my SGH-I717R
I pull mine off the charger at 7:00 and at 3pm or so it's down to 85%, I'll put it on the charger at work until I leave around 5-6pm (mainly because I'm used to having to do this on my previous phone) and at night if I'm not using it constantly it's around 70-75% when I plug it in at bed time.
I suspect anyone getting that bad of battery life must be using it constantly, ie: Playing games, browsing, trolling facebook, etc.. Even in the "new toy" stage I'm getting great battery life.
FYI I don't have LTE, but do generally have good 4G.
You honestly can't use any phone on GPS without external power and expect that you're not going to discharge quickly. Assuming that you are running a car charger during GPS and just didn't say so, search the i-717 threads, since the topic has been well vetted on what chargers are more effective,etc. There are definite differences.
Sent from my Samsung Galaxy Note LTE™
The fact that there are people out there that get really good battery life means the problem is you and not the phone. If you refresh facebook every minute of course your battery life will be crappy. apps like juicedefender are just marketing crap. as long as there are no running apps in the background that eat your battery, you do not need any juicedefender or tasker. also setting screen-off behavior to conservative on set cpu helps improve battery life.
When I first got my i717 and was using it on the stock rom I had pretty terrible battery life. I take it off the charger at 5:00am and had decent battery life (around 5 to 7 hours without GPS) but I use my phone a lot for internet/email. I think your battery life is completely normal given your usage.
Most people get about 5hrs screen on time. Total on battery ranges up to about 24hrs, but only if the screen is off at least 19 of them.
Sent from my SGH-I717R
lastdeadmouse said:
Most people get about 5hrs screen on time. Total on battery ranges up to about 24hrs, but only if the screen is off at least 19 of them.
Click to expand...
Click to collapse
5 hours? Would you mind posting a link to suh a claim? I barely get 12 hours total with 2 hours of screen time.
Sent from my SAMSUNG-SGH-I717 using XDA
khaytsus said:
I pull mine off the charger at 7:00 and at 3pm or so it's down to 85%, I'll put it on the charger at work until I leave around 5-6pm (mainly because I'm used to having to do this on my previous phone) and at night if I'm not using it constantly it's around 70-75% when I plug it in at bed time.
I suspect anyone getting that bad of battery life must be using it constantly, ie: Playing games, browsing, trolling facebook, etc.. Even in the "new toy" stage I'm getting great battery life.
FYI I don't have LTE, but do generally have good 4G.
Click to expand...
Click to collapse
7-3 is 8 hours
exactly how much screen on time do you have by the time its at 85% ? because i mean, it can go on standy for days with nothing on
---------- Post added at 09:47 PM ---------- Previous post was at 09:43 PM ----------
h0tw1r3 said:
5 hours? Would you mind posting a link to suh a claim? I barely get 12 hours total with 2 hours of screen time.
Sent from my SAMSUNG-SGH-I717 using XDA
Click to expand...
Click to collapse
i can get about 3 or so
5 hours of screen time AND 19hours standby sounds incredible
would sure like to see screen shot as well
and def dont think 5 hours is any type of avg
I had GPS running on my phone for 4 hours today, had blue tooth on half the time without knowing it, sending text messages, making two 5 min phone calls, checking maps, checking FML and reading a book for about an hour and drained down to about 70% and I have the brightness set at auto. I would exchange it for a new battery.
On average with several texts per hour, several 5-10 min phone calls, taking a few pics and uploading them to picasa, checking facebook, updating status and checking emails I can pull off the charger at 630am and still have 50% battery (at least) by 630pm.
I do have the juicedefender (which isn't crap, it turns off signal after so long so you aren't trolling for signals when you aren't on the phone).
itsnowornever said:
I had GPS running on my phone for 4 hours today, had blue tooth on half the time without knowing it, sending text messages, making two 5 min phone calls, checking maps, checking FML and reading a book for about an hour and drained down to about 70% and I have the brightness set at auto. I would exchange it for a new battery.
On average with several texts per hour, several 5-10 min phone calls, taking a few pics and uploading them to picasa, checking facebook, updating status and checking emails I can pull off the charger at 630am and still have 50% battery (at least) by 630pm.
I do have the juicedefender (which isn't crap, it turns off signal after so long so you aren't trolling for signals when you aren't on the phone).
Click to expand...
Click to collapse
and whats your screen on time for that 12 hour 6am-6pm with 50% still left please?
Just buy a second battery and throw it in at noon. No biggie.
kimtyson said:
Just buy a second battery and throw it in at noon. No biggie.
Click to expand...
Click to collapse
Was thinking of doing that since they're so cheap but thanks to juice defense I don't really have that issue no more.
Sent from my SAMSUNG-SGH-I717
h0tw1r3 said:
5 hours? Would you mind posting a link to suh a claim? I barely get 12 hours total with 2 hours of screen time.
Sent from my SAMSUNG-SGH-I717 using XDA
Click to expand...
Click to collapse
I had a ss of my buddies yesterday, but can't restore mms lol. There are plenty of other ss in the note section. He was at 22+ hrs with about 4:30 of screen on and some % remaining. I have to charge around 7-9 everynight at 4-4:30 hrs screen on, but my use is pretty heavy. I sync 4 gmail accounts, a separate GV, 3 calendars, and several apps.
If yours is much worse than that, you likely have a few troublesome apps or are playing games. First, after a full charge, reset cpuspy timers, lock it, and set it down for a few hours (I know, impossible). Then check to see that your CPU has been in deep sleep about 95% of the time. If not, use better battery stats to see what has been request wakelocks. Not only the most total time, but the total number. Any app that looks outrageous, freeze it or uninstall it. For system processes that look troublesome, Google. You can often find simple tricks online that will tell you what's causing them to go crazy. Beyond that, turn off syncing of anything that isn't needed or doesn't matter (like Facebook), and uninstall stuff you never use.
Another slight help is the brightness widget (don't use the actual widget, just put the app on your homescreen, it works the same) or dimmer in market as they can both set the brightness to a value of 10 (Samsung lowest stock is 20), and even if you can't tell the difference, it helps. Jkay settings in saurom can set the auto brightness profile slightly darker than stock. Umm, and the obvious, use less Widgets, longer sync intervals, processor scaling and speed profiles, and buy a couple rapid chargers, wall and auto.
A couple things to note after seeing a few of these posts...
BT can be on, but without it searching, connected, or listening it's not active.
GPS isn't active unless its in use aand you see the icon in the notification bar. That being said, fb, websites, and many other apps that request location will activate it.
Sent from my SGH-I717R
YOU MUST CALIBERATE THE BATTERY!! I have no issues I use my phone heavy all day and get 15 hours and I still have 20% left. All you have to do is
1) Charge you phone until it says "charged"
2)Leave phone plugged in and power off and let it charge until the battery meter literally says "100" (screen will sleep so you can check with volume rocker to light screen)
3) power on phone and let boot and than power off and wait till you see 100% again
4) now keep doin this and you will notice it will start displaying "100%" faster and faster usually takes 6-7 times cycling like this
5) After you do this download Battery Caliberation (root required) app from market and hit the caliberate button and boom your good to go
I do this on every android phone I own when I flash a new rom or purchase a fresh one. Everyone should do this everytime you flash a new rom and I can CONFIRM significant battery longevity on all my android phones I have done this with
You only have to do it once so just get it out the way and you'll get through a whole dayand have some juice to play with.
I get 15+ hours and do not any battery juice defender apps
Sent from my SGH-I717R using XDA
Underground_XI said:
The fact that there are people out there that get really good battery life means the problem is you and not the phone. If you refresh facebook every minute of course your battery life will be crappy. apps like juicedefender are just marketing crap. as long as there are no running apps in the background that eat your battery, you do not need any juicedefender or tasker. also setting screen-off behavior to conservative on set cpu helps improve battery life.
Click to expand...
Click to collapse
Just to be clear here, Tasker has nothing to do with battery life. It doesn't hurt it, nor "help" it. However, you certainly could write tasks/contexts that would decrease battery life, and there are a few scripts out there which do silly stuff like autokilling, etc... But if we're talking "battery savings", Tasker and JD do not go in the same category.
IMO JD is only useful if you're frequently in an area with no signal, like you work in a basement or deep inside of a solidly constructed building. Since you mentioned Tasker, in this context it does help me a bit on battery because my wifi turns off when I leave the house, but that's also something JD can help with. If you don't have a wifi connection it'll turn off wifi (and I believe turn it back on periodically to see if there's one available?) I don't use JD, so can't speak too much for it.
SayWhat10 said:
7-3 is 8 hours
exactly how much screen on time do you have by the time its at 85% ? because i mean, it can go on standy for days with nothing on
Click to expand...
Click to collapse
Hour? Hour and a half? I'm working during that period. I usually hit news sites and G+ when I'm first at my desk in the morning, so that's 30 minutes or so off and on looking at it, then perhaps an hour over the rest of the day, sometimes more at lunch.
I'll look closer today and post back.
Driggity420 said:
YOU MUST CALIBERATE THE BATTERY!!
Click to expand...
Click to collapse
Complete nonsense. https://plus.google.com/105051985738280261832/posts/FV3LVtdVxPT
Am envious to those who managed to use their phone for more than a day. I bought this phone for about 2 weeks now and have done the normal full charge for 8 hours on the first time. Since then, I have fully charged twice and let the battery gone flat once. I have flashed Neutrino rom and currently Latveyit rom, and the battery last best 12 hours so far.
I charged the phone to 94% at about 7pm and just made two calls and two text messages. I did a navigation on maps for about 15mins max. By about 11pm, battery is at 57%, I play some games for about 10mins and went to bed, in the morning it's about 35%. I realise that the first 50% really goes fast and after that it's pretty decent until less than 20% and it drains fast again. Background application I have are the normal chat programs, whatsapp, viber, kakaotalk, skype and ebuddy. I have waze running in the background although I think it shuts off after 15mins. I have a mix of wifi and 3g usage, usually on wifi though. Is this normal?
edit: I also have Lookout antivirus running
All your chat programs running in the back ground prevent your device to sleep correctly, they wake it up every time they check if there is a new message.
Try to keep only the apps you use and try for each app to increase the check delay or disable it.
The antivirus does help.
2 weeks is a bit early to make a comment about the battery.
Download Battericalibration from the market and use it every shift rom change.
Read about topic on the forum but not become a maniac in "battery life".
If the screen stays lit for 5-7 hours the battery will be empty in like 7-8 hours. If you only speak 1 hour at it the battery will be empty in 3 days.
All depends on how you use it!
Sorry for bad english.
Sent from my MB860 using xda app-developers app
clod007 said:
2 weeks is a bit early to make a comment about the battery.
Download Battericalibration from the market and use it every shift rom change.
Read about topic on the forum but not become a maniac in "battery life".
If the screen stays lit for 5-7 hours the battery will be empty in like 7-8 hours. If you only speak 1 hour at it the battery will be empty in 3 days.
All depends on how you use it!
Sorry for bad english.
Sent from my MB860 using xda app-developers app
Click to expand...
Click to collapse
I thought that the chat programs will only cause problems if there are frequent messages since they're base on push?
2 weeks is early? How does that affect the battery's performance? I thought when it's new, it's most optimum and slowly degrades through time? The screen was off most of the time unless I was doing anything I mentioned or just checking the time which is just on, check then off. I don't think I am paranoid over the battery life, just curious how to get it over a day.
grim_ripper said:
I thought that the chat programs will only cause problems if there are frequent messages since they're base on push?
2 weeks is early? How does that affect the battery's performance? I thought when it's new, it's most optimum and slowly degrades through time? The screen was off most of the time unless I was doing anything I mentioned or just checking the time which is just on, check then off. I don't think I am paranoid over the battery life, just curious how to get it over a day.
Click to expand...
Click to collapse
In my opinion the battery reaches her max in 3-4 weeks.
Download the app from the market and use it after every rom change.
I didn't called you paranoic, just that you mustn't be so worried.
My recomandation for a longer battery life is CM7.
GOOD DAY!
Read forum for more details.
Sorry for my english!
Sent from my MB860 using xda app-developers app
You might try 1Ghz faux kernels as well. They seemed to have helped my battery life considerably.
Chek out what apps you have running in the background and be sure you set youre network yourself (my phone was always changing from 2g to 3g and after i selected the network myself it gave me a 1day + boost .
And you shoud know that the litium polimer batteryes are affected by cold temperatures.
I wish you luck!
I did use cm7 (neutrino) and got about the same battery life span as the current rom (laytveyit), and am currently on the faux 1ghz kernel. Anyway, I will see how it performance in the weeks to come and hopefully the newer version of the rom will improve it. I thought cold temperature helps preserve the battery's life span?
EDIT: Thanks for all the advice!
grim_ripper said:
Am envious to those who managed to use their phone for more than a day. I bought this phone for about 2 weeks now and have done the normal full charge for 8 hours on the first time. Since then, I have fully charged twice and let the battery gone flat once. I have flashed Neutrino rom and currently Latveyit rom, and the battery last best 12 hours so far.
I charged the phone to 94% at about 7pm and just made two calls and two text messages. I did a navigation on maps for about 15mins max. By about 11pm, battery is at 57%, I play some games for about 10mins and went to bed, in the morning it's about 35%. I realise that the first 50% really goes fast and after that it's pretty decent until less than 20% and it drains fast again. Background application I have are the normal chat programs, whatsapp, viber, kakaotalk, skype and ebuddy. I have waze running in the background although I think it shuts off after 15mins. I have a mix of wifi and 3g usage, usually on wifi though. Is this normal?
edit: I also have Lookout antivirus running
Click to expand...
Click to collapse
Lol all those chats are you problem imo
The "standard" apps used to figure out what's eating your batteries are:
BetterBatteryStats: for wakelocks
CpuSpy: to tell if you phone is going into deep sleep or not
Built in Battery Usage: to see a pretty graph and tell what's using the most juice
SystemTuner: I just recently started playing with this, lots of information.
Look up BetterBatteryStats here up XDA. There's plenty of threads on how to use it. Look up wakelocks.
Anyone else experiencing horrible batter drain? Android OS is taking up 50-60% on average and it just eats it up while idle. I'm thinking about a return, this is my second handset, and with a locked bootloader, im losing faith in a quick solution. Any ideas?
Minimal use and quick setup with two to three app dowloads, and my 40% charged new device was down to zero in 2 hours.
I've noticed some battery quirks so far. My percentage drops 3% simply by locking and unlocking my phone within a few minutes. I've also seen it jump up in percentage once so not sure. Maybe there is something in the OS that isn't optimized that's causing the battery drain and quirks? I dunno. Be great to hear from some other people on this issue.
Sent from my LG-E970 using xda app-developers app
svntsvn said:
Anyone else experiencing horrible batter drain? Android OS is taking up 50-60% on average and it just eats it up while idle. I'm thinking about a return, this is my second handset, and with a locked bootloader, im losing faith in a quick solution. Any ideas?
Minimal use and quick setup with two to three app dowloads, and my 40% charged new device was down to zero in 2 hours.
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Click to collapse
Working on BT unlock so i would wait.
I've only had one charge on mine but it seems to be going good for me. I made it over a full day with 3+ of screen time.
Sent from my Nexus 7 using Tapatalk 2
what percentage does your "android os" show? I'm wondering why my second handset is the same. Did you root yours and remove the bloatware?
svntsvn said:
Anyone else experiencing horrible batter drain? Android OS is taking up 50-60% on average and it just eats it up while idle. I'm thinking about a return, this is my second handset, and with a locked bootloader, im losing faith in a quick solution. Any ideas?
Minimal use and quick setup with two to three app dowloads, and my 40% charged new device was down to zero in 2 hours.
Click to expand...
Click to collapse
Hi give it a couple of charge cycles it will definitely improve.
Yes, I've got the same problem. The OS takes most of the battery. Idle is fine, but with any use battery drops very fast and gets extremely hot, as well.
svntsvn said:
Anyone else experiencing horrible batter drain? Android OS is taking up 50-60% on average and it just eats it up while idle. I'm thinking about a return, this is my second handset, and with a locked bootloader, im losing faith in a quick solution. Any ideas?
Minimal use and quick setup with two to three app dowloads, and my 40% charged new device was down to zero in 2 hours.
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Click to collapse
Keep in mind that these are new phones with NEW BATTERIES. With that being said, you need to "cycle" (charge to 100% then discharge to 0% <repeat 3-5x's) the battery before we judge and jump into conclusions. Just sayin
Jove81 said:
I've noticed some battery quirks so far. My percentage drops 3% simply by locking and unlocking my phone within a few minutes. I've also seen it jump up in percentage once so not sure. Maybe there is something in the OS that isn't optimized that's causing the battery drain and quirks? I dunno. Be great to hear from some other people on this issue.
Sent from my LG-E970 using xda app-developers app
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Click to collapse
Sent from my SGH-I997 using Tapatalk 2
keep that in mind. just came as a surprise, never had a device out of the box have this bad of battery life since my g2x or some old htc.
Sent from my SGH-I997 using Tapatalk 2[/QUOTE]
For the record, I'm also having pretty lousy battery life. OS taking up 55%+. Last night I charged it to 100%, played with it until it was about 93% and then went to bed. Woke up this morning and it was at 65% with zero deep sleep and 80% OS usage.
Something's funky. I like the phone but can't be dealing with this constantly.
A:
EDIT: Turns out the extreme drain was from the radio. I had switched off LTE in the hidden menu and apparently that causes a ton of wakelocks and prevents deep sleep. As soon as I turned LTE back on, deep sleep came back. So that's somewhat encouraging.
I'll have to look at that. I'm getting a day with light use out of my second phone after a few charges, but it gets a little scary when im using it. I'm staying optimistic, my s3 was just phenomenal with battery life after rom kernel additions.
Can you explain how you turned off/on lte and the menu path?
I dont see an apn option other than the stock one (which im assuming is lte enabled). I'd like to see if it makes a difference. Thanks.
you need to enable network menu in the build.prop and a menu will appear where apn is
Sent from my LG-E970 using xda premium
My battery life is not great, but it is not bad either I'll judge it more in a couple days after it goes through a few cycles.
Sent from my LG-E970 using xda app-developers app
Take a look in my "first impressions" thread for details on turning off LTE.
Sent from my LG Optimus G.
This is really disappointing. Physically, this phone is fantastic. It looks great and the specs are terrific but it's crippled by absolutely horrid software which I suspect is the reason for the abysmal battery life.
After my first day with the phone yielded less than 10 hours I decided to do a factory reset and set the phone to Eco Mode. That improved things slightly... I managed to get 14 hours but that was with limited usage. In fact, the only significant difference in results was that, in Eco Mode, Android OS shows that it is consuming 80% of the battery vs 53% the previous day.
There is something seriously wrong with these things... the fact that some people are saying that they aren't seeing the problem has me worried that it may be some sort of hardware-related issue.
Cloudscout said:
This is really disappointing. Physically, this phone is fantastic. It looks great and the specs are terrific but it's crippled by absolutely horrid software which I suspect is the reason for the abysmal battery life.
After my first day with the phone yielded less than 10 hours I decided to do a factory reset and set the phone to Eco Mode. That improved things slightly... I managed to get 14 hours but that was with limited usage. In fact, the only significant difference in results was that, in Eco Mode, Android OS shows that it is consuming 80% of the battery vs 53% the previous day.
There is something seriously wrong with these things... the fact that some people are saying that they aren't seeing the problem has me worried that it may be some sort of hardware-related issue.
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I would guess those people that aren't seeing this are not looking at the battery stats, I have never seen Android take up this % of battery on any device and I have been using android since the Hero... about a good 15 devices or more ago I have lost count. Come next Thursday I am going to go switch out for something else if the boot loader is not unlocked yet.
Awesome battery life
Sent from my LG Optimus G
Ilkinansr92 said:
Awesome battery life
Sent from my LG Optimus G
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That is with only 3 hours of use, and the android OS should never be that high, on every other device the screen is the highest... and this is a problem with the software.
whoamanwtf said:
That is with only 3 hours of use, and the android OS should never be that high, on every other device the screen is the highest... and this is a problem with the software.
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yes i know its a bug but battery life is still good i can use it for 7 hours screen on and still last me a day this lasted me almost 2 days.
My Galaxy S II (and pretty much any Android evice I've picked up) has a usable battery life of 45 minutes. I unplug the phone at 9 A.M. in the morning after charging it to 100%. By 12 in the afternoon I would have browsed the Internet, checked social apps and played a few rounds of a game for what feels like 45 minutes in total. By then the battery is at 30% and I have to put it away in fear of it dying before I get home. The phone is useless for the rest of the day. My iPhone 4 with its 3 year old battery lasts 2 days like this.
No wakelocks, 99% deep sleep. I have a 3200mAh battery which feels like it lasts 1.5 hours before I have to put it away in fear. Basically the phone is not usable at all due to the user being in constant fear of the battery dying.
If I don't use the phone at all it's down to 20% by the end of the day with no wakelocks and 99% deep sleep. If I don't use my iPhone 4 with its 3 year old battery, it still lasts 20 days.
KurianOfBorg said:
My Galaxy S II (and pretty much any Android evice I've picked up) has a usable battery life of 45 minutes. I unplug the phone at 9 A.M. in the morning after charging it to 100%. By 12 in the afternoon I would have browsed the Internet, checked social apps and played a few rounds of a game for what feels like 45 minutes in total. By then the battery is at 30% and I have to put it away in fear of it dying before I get home. The phone is useless for the rest of the day. My iPhone 4 with its 3 year old battery lasts 2 days like this.
No wakelocks, 99% deep sleep. I have a 3200mAh battery which feels like it lasts 1.5 hours before I have to put it away in fear.
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Click to collapse
Well, or you buy a new battery for the S2 or you keep going with your "stylish" i phone. The world is not complicated and phones are not rocket science.
And by the way, games drain battery hard, very hard.
Charge at work, upgrade the battery or stick with your iPhone.
I tip my hat to you and wish you a good day.
Sent from my GT-I9100 using xda premium
Mine lasts up to 2-3 days with little usage.
Sent from...this is not even my S2
Edvin73 said:
Well, or you buy a new battery for the S2 or you keep going with your "stylish" i phone. The world is not complicated and phones are not rocket science.
And by the way, games drain battery hard, very hard.
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Click to collapse
Like I stated, I have a newish 3200mAh battery which is safe to use for 1.5 hours before you have to put the phone away so it lasts the rest of the day.
KurianOfBorg said:
Like I stated, I have a newish 3200mAh battery which is safe to use for 1.5 hours before you have to put the phone away so it lasts the rest of the day.
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I hope you checked with BBS, if so and as you said "99% of deep sleep", it means that the games are draining your battery.Well, sometimes even a "newish" battery can be faulty.Try with different battery,I mean a good one for sure.And if your results are the same, stop playing those freakin' games.
mckeowngoo said:
Charge at work, upgrade the battery or stick with your iPhone.
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Click to collapse
I do. The battery actually drains while charging if I'm using the phone.
Edvin73 said:
I hope you checked with BBS, if so and as you said "99% of deep sleep", it means that the games are draining your battery.Well, sometimes even a "newish" battery can be faulty.Try with different battery,I mean a good one for sure.And if your results are the same, stop playing those freakin' games.
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Yes I use BBS and have completely disabled all bloatware using Autostarts. I have the original battery and the Mugen Power 3200mAh battery. The battery life is proportional to with the capacity of the batteries I've used.
The primary use of my phone is mobile gaming. I don't care about the phone part except for receiving push notifications for email, IMs etc. which I then reply to on the PC anyway.
My SG2 and pretty much every Android device I pick up has 45 minutes of battery... Either you have won the lottery and got a defect phone several times or there is something fishy going on..
My sg3 lasted for 24 hours, my s4 last for a couple of days, my motorola razr lasted a week and my iphone 4 went for a day and sometimes 24 hours..
Even if I stress test my sg4 and s3 all the time it would last for a lot loooonger than 45 minutes..
I know the games will use a lot of juice but 45 minutes? Something is wrong...
What kind of games are we talking about? I do not play so much myself, just online poker, some tetris and so on, my iphone and android phones is pretty similar when talking about these games...
You could go for a Nintendo Game Boy etc
That said I taught ICS used less battery than JB. And it's pretty weird if you have the mugen battery. My Razer had a 3300 battery and that would go for days, even with heavy usage.
Sent from my Samsung Mobile and xda-Premium...
mr.lysgaard said:
My SG2 and pretty much every Android device I pick up has 45 minutes of battery... Either you have won the lottery and got a defect phone several times or there is something fishy going on..
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Click to collapse
I've extensively used the Galaxy S, Galaxy S II, Galaxy Note, Nexus One, Nexus S. All of them can be used heavily (3G, gaming) for just 45-60 minutes before the battery is low and you have to save it for the rest of the day.
Simply listening to music for 2 hours in the gym drains 35% battery! WTF? This is without any equaliser and while using an external headphone amplifier. I could listen to music for 2-3 hours a day for 1 week on my old iPod touch before needing to charge it.
mr.lysgaard said:
What kind of games are we talking about?
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I'm currently grinding in Punch Quest.
mr.lysgaard said:
You could go for a Nintendo Game Boy etc
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Click to collapse
Those currently suck. No more AAA games like the PSP had.
mr.lysgaard said:
That said I taught ICS used less battery than JB. And it's pretty weird if you have the mugen battery. My Razer had a 3300 battery and that would go for days, even with heavy usage.
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With zero usage and I mean barely switching on the screen once or twice to check the time, my 3200mAh Mugen battery is at 55% by evening. No wakelock, full deep sleep. The original battery will be below 20% or dead with zero usage.
KurianOfBorg said:
With zero usage and I mean barely switching on the screen once or twice to check the time, my 3200mAh Mugen battery is at 55% by evening. No wakelock, full deep sleep. The original battery will be below 20% or dead with zero usage.
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Click to collapse
Maybe you usually install a battery discharger app?
Never had such behaviour.
bernie279 said:
Maybe you usually install a battery discharger app?
Never had such behaviour.
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Click to collapse
If I enable Aeroplane mode it's still at 99% after a day.
KurianOfBorg said:
I do. The battery actually drains while charging if I'm using the phone.
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Click to collapse
Possibly a crap battery, but im going to suggest you don't use the samsung charger. The phone holds a wakelock whilst charging, keeping the phone running at 200Mhz, so unless you are delivering 650mA, your phone will die. Therefore I suggest you are using an unofficial charger, which doesn't deliver the needed 650mA, or you have an unofficial battery which wont accept 650mA. Either way, if you're not using Samsung appliances you shouldn't really be complaining about crap battery.
Sent from my GT-I9100 using xda app-developers app
TheReverend210 said:
Possibly a crap battery, but im going to suggest you don't use the samsung charger. The phone holds a wakelock whilst charging, keeping the phone running at 200Mhz, so unless you are delivering 650mA, your phone will die. Therefore I suggest you are using an unofficial charger, which doesn't deliver the needed 650mA, or you have an unofficial battery which wont accept 650mA. Either way, if you're not using Samsung appliances you shouldn't really be complaining about crap battery.
Sent from my GT-I9100 using xda app-developers app
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I am using the original Samsung charger and the original Samsung battery. I have an additional 3200mAh Mugen Power battery.
It drains faster than the charge rate only if I'm playing games.
Could be many things then, but as you say BBS doesnt report wakelocks, it would all just be conjecture. Try and pull a logcat after an hour or so of deepsleep and see if you notice anything untoward. Also, have you done simple things like turn WiFi off when you're not using it? That scans every 15 seconds or something. Or if you're in a crap phone signal area, your phone will keep scanning for and trying to connect to a better signal.
Sent from my GT-I9100 using xda app-developers app
TheReverend210 said:
Or if you're in a crap phone signal area, your phone will keep scanning for and trying to connect to a better signal.
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It's the phone obviously. Like I said if I put it in Aeroplane mode than the battery is still at 99% at the end of the day. If it's in normal mode it drains severely. I don't have this problem on any other phone. I've flashed the latest modem for my region and tried older modems for my region as well.
Not sure but it sounds like you have technical issues with your phone.
I have the official Samsung uprated battery and I loose about 60% out of the phone battery a day with heavy usage. Usually doesn't get to that point as I charge at work or home when not in use.
I take it as a given that all smart phones, tablets or laptops have ****e battery life.
Blanket generalisations about specific OS' or brands being superior to others is just silliness.
Saying that, when it comes to battery life, my HP Touchpad running CM 10.1 pisses all over any iOS device and the ghost of Steve Jobs agrees with me!
Sent from my GT-I9100 using xda premium
mckeowngoo said:
I have the official Samsung uprated battery and I loose about 60% out of the phone battery a day with heavy usage.
...
I take it as a given that all smart phones, tablets or laptops have ****e battery life.
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60% at the end of the day is a joke. It's unacceptable. Without use My iPhone 4 is at 95% at the end of the day with everything switched on and every possible syncing enabled. Why is it so hard for Samsung to produce a properly working phone after 5 years? I am 100% sure their latest phones like the Galaxy S 4 behave exactly the same way no matter what PR bull**** they try to spin.
KurianOfBorg said:
60% at the end of the day is a joke. It's unacceptable. Without use My iPhone 4 is at 95% at the end of the day with everything switched on and every possible syncing enabled. Why is it so hard for Samsung to produce a properly working phone after 5 years? I am 100% sure their latest phones like the Galaxy S 4 behave exactly the same way no matter what PR bull**** they try to spin.
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Click to collapse
Seems the iPhone is the device meant for you, for me in normal usage it lasts 2 and a half days altogether with the stock battery, heavy usage like a gameplay of Gamelofts Modern Combat series or N.O.V.A gives me 3 hours of continuous play after which the battery reaches around 7-10%, wifi in JB sadly kills my battery only gets around 6 hour's with continuous usage which was greater in my GB and ICS days.
But 95% at the end of the day for the iPhone 4 with everything ON is a bit of an exaggeration(the hell kind of unremovable battery is that?) don't you think?
Sent from my GT-I9100 using xda app-developers app
king_below_my_lord said:
But 95% at the end of the day for the iPhone 4 with everything ON is a bit of an exaggeration(the hell kind of unremovable battery is that?) don't you think?
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Everything on with no use. Thats the drain in standby. My SGS2 drains whether I use it or not with everything on. In aeroplane mode, it stays at 99% without use.