Hi. My att galaxy s2 seems to drain a lot of battery no matter which rom or software it is running. Even on stock. It is usually the messaging app, media, android os, and screen that are all taking up large portions of battery. I just wanted to know is there anything I could do/flash that would help this problem? If not could it possibly be a hardware problem? I could replace it but I wanted to know for sure first.
You could try a custom kernel. AJ's and STI both have battery saving tweaks you can use. Not sure if that will help you or not. If you are getting 2 to 3 hours of screen time that is probably all you will ever see. I rarely get more than 3 hours of screen time.
If you are on 4.0 or higher OS, you can also use Greenify to identify and put bad behaving apps into hibernation.
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Hello all,
I purchased a Galaxy S2 at the end of July, I live in the US, so it was from Amazon. The phone has been phenomenal, an amazing piece of technology.
I rooted the phone and flashed Lite'ning Rom 6.1 XXKH3. Still worked great, with no problems at all.
However, starting about a week ago, I am getting an extremely fast battery drain. Since then, I have spent hours looking at threads trying to figure out what was going on. I updated the rom to UltraToxic Rom v8.0 XWKK5, still no change.
I used Titanium Backup to freeze many widgets and app processes, still no change. I am currently using better battery stats to monitor wake locks, however after managing the wake locks, still no change.
I then bought a replacement battery thinking that the battery may have been bad, sadly, there was no change.
I have been trying to find a solution to this and had tried many other suggestions in other threads to no avail. As of now I have come to the conclusion that the device might have some type of malfunction that is causing this.
Am I going crazy or am I missing something obvious? Any help would be greatly appreciated.
Thanks
I have also re-calibrated the battery, still no positive changes.
Seeing the battery graph, you have your screen on a lot of time. Screen sucks battery a lot, so there might be one of the causes of battery draing.
Also you seem to have all day enabled 3G/WiFi, that also sucks some battery with it.
You can try JuiceDefender and see if it can help you extend a little your battery.
change kernel
Try flashing hardcore's "SpeedMod Kernel" and you will never complain about your battery life.....
After flashing this kernel my worse battery life was 1day and 12h with 3.5h screen on and wifi 85% ON.
http://forum.xda-developers.com/showthread.php?t=1182498&highlight=speedmod+kernel
AzureusPT said:
Seeing the battery graph, you have your screen on a lot of time. Screen sucks battery a lot, so there might be one of the causes of battery draing.
Also you seem to have all day enabled 3G/WiFi, that also sucks some battery with it.
You can try JuiceDefender and see if it can help you extend a little your battery.
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Lol.... It's obvious he has some kind of battery problem, he is not using the phone much, and galaxy S 2 should have at least 5-6 hours screen on time and the phone lasted 3 hours.
Sent from my GT-I9000 using xda premium
Since I had all data on the phone backed up, I did a factory reset. I also flashed the UltraToxic Rom v8.0 XWKK5 as well as the suggested SpeedMod Kernel. When the battery was at 100%, I calibrated the battery. I tried to leave the phone idle as much as possible, I did use the internet for about 10 minutes to check e-mail, news, etc. So now the phone is essentially "empty" in terms of apps downloaded, I got rid of all widgets on all home screens.
There was still no positive change, I do really like the SpeedMod Kernel though, I do notice faster responsiveness from the phone.
I am beginning to think that the problem may be the hardware and not the software or battery.
I've got similar problems here. I am suspecting a hardware problem (I damn well hope it isn't coz i got mine from hong kong) because my phone never goes into deep sleep mode for more than 50% while the screen is off. I've tried at least half a dozen different kernels and roms and nothing helps, this is even in airplane mode i.e. with pretty much everything turned off. I've tested wakelocks and dont get anything more than a couple of seconds. I had my battery charged to full at 6:30am this morning, went to work and got home and it was dead after just under 12 hours with being idle 75% of the time. This is worrying as most people's battery lasts at least a whole day.
So I know it can't be the kernel, I know it cant be wakelocks, I know it cant be wifi or 3g data or anything of that nature so the only thing it comes down to now is hardware...
Funnily enough I've had exactly the same issue since about a week ago. Even when I take it off charge it's almost immediately down to around 80%. It's lasting around 4-5 hours, even when I'm not using the phone much, plus it gets really hot.
A couple of times Social Hub has appeared high up on the list of battery draining apps, although I don't use it. It doesn't always show up though. I switched to the CF-Root kernel and started using GO Launcher EX recently and wondered if that (or one of it's addon widgets) could be the cause.
It's really bugging me now!
SOLVED!
After days and days of trying to fix the issue of the phone not sleeping (and therefore draining excess battery whilst idling) I have finally fixed it!!!!!
First i noticed that along with the sleep problems, I was getting the problems with car mode popping up randomly, the phone going into mtp connection mode, and thinking its charging when it was unplugged. After looking into these issues (and i thought it was a longshot) I decided to do what people were saying and CLEAN THE MICRO USB PORT.
Now you're probably thinking I am a crazy man, but now im just crazy happy that I don't have to send my phone back to Hong Kong!
Instructions:
1. Get a clean, dry, soft-bristled toothbrush.
2. Take any case you have off the phone.
3. Gently insert the bristles into the port and "flick" it out softly.
4. Repeat this about 10-15 times
No matter what ROM, what kernel, what modem i tried flashing, my phone was always sitting on no more than 50% deep sleep mode when idle and had no wakelocks or "rogue apps".
I am now getting 90% - 98% DEEP SLEEP MODE!
I obviously can't guarantee that it will work for everyone, heck how it solved the issue is a mystery to me, one which probably an electronically-minded/computer systems person could answer. What I can say though is I searched high and low online for about a week. I tried different kernels, I tried different ROMs, I tried "re-calibrating" the battery, I used BBS to check for partial wakelocks. If you too have tried all this and have had no success please PLEASE try this and see if you have success!!
Thanks for reading!
....
Or if you didnt...
TL;DR: If you're having battery drain problems clean the micro USB port with a soft toothbrush.
The phone never sleeps when charging, the CPU idles at 200 MHz, whatever was in your USB port was probably making contact with the pins that tells the phone it is connected to a charger when it actually is not, so it was idling at 200 MHz and was not receiving power, that's the only explanation I could fathom
Do two things:
Install CPU spy and show us what the deep sleep percentages are,
and try disabling wifi. Also, what is the router?
I have a battery drain issue; but its kind of screwey as i will reboot my phone and lose about 20% of the phones charge. If i turn it off and leave it off for an hour the charge comes back. Its random as well; only happens once a week. I have had this problem on different roms. You might have a similar problem to me. Possible the hardware that detects battery state is knackered.
Sent from my GT-I9100 using Tapatalk
try to reduce screen brightness it might help, and when on wifi turn off data plan might help too
kamazaki said:
try to reduce screen brightness it might help, and when on wifi turn off data plan might help too
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Since you didn't seem to realize, I thought I'd tell you. This thread was 5 months old before you posted in it...
lol
yesterday I had 2 blackouts. I did not much things, some photos, facebook and whatsapp.
But anytime when I want to use it, screen stayed black and SGS2 did not answer any longer. Also it seems to be very hot on the rear. After removing battery and switching on again, I mention that there was a big battery drain. These two things (hot back side and high battery drain) sounds to me that there was maybe one process which "killed" the system. I recognize this since I have JB ROMs on my phone, that my phone don't react sometimes, becomes very hot and had a big battery drain after switching it on again after having removed the battery.
Is there any debug possibility to see wich processes are running and might cause this issue?
I also sometimes have this problem. This even happened on ICS (can't remember for GB).
maybe it is also a kind of memory shortage?
Do you have the same behaviour? Hot back and battery lost after you have hard reset your phone by removing the battery?
I read that JB is running out of memory from time to time.
I now use Smart RAM Booster to see if this maybe the reason for our "crashes".
Nevertheless it would be great if someone could tell how to log CPU, top10 processes and memory to see if there is anything which causes those lags.
changed kernel to Dori 9.33. I hope this will fix my SoDs
Has anyone else had battery drain issues with the Eclipse ROM on the Verizon Galaxy S4? I just came from an S3 on CyanogenMod I'd been using for a little over a year and I could still make it a whole day without having to charge it, but it seems like I can only make it half a day on the S4 before the battery gets low. So far I've:
-Used Titanium Backup to remove all bloatware listed here: http://forum.xda-developers.com/showthread.php?t=2797600
-Minimized screen brightness as much as possible
-Turned off all unnecessary functions (Gestures, AirView, etc)
-Turned on Power Saving Mode
-Replaced the original (used) Samsung battery with a brand new OEM battery (with no positive change in battery life)
I mostly use the device for email, web browsing, etc. and still find the battery draining faster than I think it should be (about 10% every 15-20 minutes during use). I do have Avast Antivirus and My Data Manager running, but they only contribute to about 2-3% of total battery usage. The display, on the other hand, is responsible for anywhere between 30-50% of the total battery usage. (I can post screenshots of my device's battery usage later, if necessary).
The S4 is on the NC5 bootloader (thus I used the Safestrap method to install Eclipse), if that makes a difference.
Im on eclipse nc5 and i actually get great battery thanks to xposed and greenify. Go install greenify, And grant it root access. Then any apps you dont need notifications immediately, select them to hibernate so they dont use as much battery. That should help, and with brightness. Use lux lite. It can make your screen as bright as 100% or as dark as -80%. I change it depending on my lighting, and it seems to work fine.
When you say you get great battery life, just how much are you getting out of it? I've got greenify installed, hibernated all apps I don't need notifications for, etc and I still average only about 4-5 hours of battery life. Surely the screen alone can't be draining the battery THAT fast?
aclardy85 said:
When you say you get great battery life, just how much are you getting out of it? I've got greenify installed, hibernated all apps I don't need notifications for, etc and I still average only about 4-5 hours of battery life. Surely the screen alone can't be draining the battery THAT fast?
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You may have wake lock issues with some of your apps Android Basics 101: Understanding Wakelocks: http://youtu.be/fG8tghj0AYM that is a very good and short video explaining what exactly a wake lock is and there is a good X posed module that will help you manage them.
"It was for freedom that Christ set us free; therefore keep standing firm and do not be subject again to a yoke of slavery." - Galatians 5:1
I'm no pro or anything but I do know that eclipse should definitely last at least a day. If greenify or freezing busy apps isn't doing it, then you have some other problem. If I were you, I would reinstall the eclipse rom, check the md5, and reflash it. Even preferably, I would do a clean restore of the s4... This is a ton of work but that means that anything wrong will be fixed, its the solve all solution.
*assuming you're not streaming videos constantly off 4g while running your gps in the background and having 10 emails pushing in a hot car . then u might have some bad battery life, just maybe.
I have basically the same setup, but I use One Power Guard as well. I also used Titanium Backup to freeze anything to do with Google since I use Aqua Mail and CalenGoo, neither of which need Google services. Mostly email, phone and texting. Probably much less use than you, but I get two days easy, One day I'll have to use just the phone for a day and see what happens.
Raymondlikesroot said:
I'm no pro or anything but I do know that eclipse should definitely last at least a day. If greenify or freezing busy apps isn't doing it, then you have some other problem. If I were you, I would reinstall the eclipse rom, check the md5, and reflash it. Even preferably, I would do a clean restore of the s4... This is a ton of work but that means that anything wrong will be fixed, its the solve all solution.
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Sorry for the late reply, but I finally got around to doing a clean restore of the S4 followed by a reinstall of the eclipse rom (including redownloading the rom and checking the md5). A few days later and my device's battery life is still terrible. I know there's always the possibility that the brand new OEM battery I purchased a month or two ago could be a dud (I did buy it off eBay, knowing full well the risk I was taking). Any suggestions on where I could get a good battery for a reasonable price? Or can anyone think of anything else that might be draining the battery so fast?
aclardy85 said:
Sorry for the late reply, but I finally got around to doing a clean restore of the S4 followed by a reinstall of the eclipse rom (including redownloading the rom and checking the md5). A few days later and my device's battery life is still terrible. I know there's always the possibility that the brand new OEM battery I purchased a month or two ago could be a dud (I did buy it off eBay, knowing full well the risk I was taking). Any suggestions on where I could get a good battery for a reasonable price? Or can anyone think of anything else that might be draining the battery so fast?
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Buy an Anker or Zerolemon! Both are great.
Download wakelock detector or better battery stats to check what apps are using your battery.
Sort of a general question, but I'm wondering, has anyone been able to achieve good battery life on a stock based rom? (Jasmine, Skydragon etc). I love the LG camera, so I've been sticking with stock based roms, but I've tried everything imagineable to try and save battery on this phone and I can't seem to do it. The best I've been able to get out of this phone is right under 4 hours of screen time and I'm losing about 2.5% every hour when the screen is off. Wakelocks and other battery monitors don't really show anything crazy going on that I can tell, but the culprit seems to be Android OS (as usual).
I've heard of lowering the resolution saving some juice, but I'd rather not do that if I didn't have to. I've got greenify, amplify and other minor tweaks running. Anyone been able to find a real way to increase battery life on this phone? I'm tempted to get a new phone if I can't fix the issue. My old S4 used to get 6+ hours of screen time easily.
try downloading jasmine lollipop with xposed using greenify module. use STOCK kernel. ive seen better battery using the stock kernel than using skydragons. delete amplify because ive found that it drains battery rather than saving it. buy greenify if you have a little cash. and greenify some system apps. I sometimes get 5 and a half hours sot.
First, I just moved from a stock OS 4.4.2 in my Samsung S5 Us cellular G900R to an CM 13 Nightly build. Everything looks fine and the performance is just amazing. But I only have one slight problem. The Battery
The battery is draining when it's idle. I had fully charged it last night and when I woke up this morning it was 91%. Literally, it was doing nothing. And when I slightly using my apps such as WhatsApp and similar things it will deteriorate in a fast pace.
I heard that flashing a custom kernel fixed the problem for numerous users. I'm considering doing that, but I have another problem. I can't find any
Can anybody help me out? I mean generally with the battery stuff?
Note: I'm aware of the app hog problem that may occur from some misbehaving apps but that's not the problem. I'm monitoring the behavior of the apps from the system menu and by BetterStats Battery. Also I turned off the sync option and also the WiFi always on is turned off.