Samsung Epic 4G : Phone Cannot Go To Sleep - Battery Draining Quickly
Nov 12, 2010
I've been getting pretty good battery life (about 14-16 hours on average) when I use the airplane mode trick and kill the Media Hub service. However, my phone has not been able to sleep since the past 2 days and the battery is draining quickly.
The up time indicates that the phone cannot go to sleep. I'm just surprised because I haven't changed any of my phone settings so I don't know why this is happening. I uninstalled the last app that I downloaded and that didn't help.
Should I try doing a hard reset? Are there any apps that will specifically tell me what is keeping the phone awake?
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Aug 9, 2010
I went to bed at 1am and woke up at 10:20am. My battery was at 65% before bed and 44% when I woke up.
I killed all tasks with advanced task killer as I do throughout the day as well. I don't use the email program on my phone nor do I get any notifications for any other programs. My Wi-Fi sleep policy is set to never because I have Wi-Fi at home. Brightness is at a low setting too. So, any ideas what would be draining my battery during the overnight when I'm not using my phone? I don't have problems during the day when I use it.
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Oct 12, 2010
I've got a HTC Wildfire and in the last couple of days the battery has started draining really quickly. Usually I could leave my phone overnight with wifi and mobile web etc switched off and the battery would drain by a maximum of a couple of percent but now it's losing 25% of its charge overnight with nothing running. Looking at the battery usages since unplugged 3% is phone idle, 4% cell standby and 93% maps!! I haven't even used the maps for a couple of days so what could be causing this? The only apps I've downloaded in the last couple of days are WordUp!, Air Control Lite and Shopping List manager.
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Oct 27, 2010
Got my Desire HD at the weekend, and am really struggling with the battery life, I don't use the phone much at all, couple of calls (less than an hour) checked facebook a couple of times, a read about 5 emails. Charged overnight and then by 9pm last night it was on its last legs telling me to plug it in! I have turned the apps to sync manually under settings-accounts & sync. Already used nearly 50% off the battery today and I haven't even used the phone!
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Nov 22, 2010
Today's my 4th day of using the phone. I just charged it while phone's on, from 1 bar of battery left. It only took 1 hour for the LCD light to go green? that doesn't sound right. Is that normal?
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Sep 5, 2010
I'd like to thank the people over at XDA.I think they may have found the culprit for the horrible battery performance some of us are seeing. There are two threads of interest over there:Time without signal > 50% - xda-developers Wow battery from 100 to 10 in 3 hours xda-developers.The short of it is that the 3G signals don't stay locked and the phone keeps hunting.If you go under the battery life settings and click on "Cell Standby" there's a field for "Time Without Service".Mine and many others were hover around 50%.This is constantly draining battery even while you do nothing.So the temporary quick fix is to turn on Airplane mode, then turn it right back off.This fixes some incorrect setting.On my phone, Time Without Service dropped from 52% last night to 0% today.And my battery only dropped about 9-10% idling over night.This is MUCH better than the 30% draining overnight I was seeing over the past few days.
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Dec 1, 2010
After noticing my battery was draining quickly, and then after reading this thread, I installed Android System Info to see what was draining my battery so fast. I notice that whenever I would turn on WiFi, the phone will never go to sleep , regardless of what I set the WiFi sleep policy to. After turning off WiFi, the battery still drains heavily.
The WiFi will shut off after 15mins (if you set it to "When screen turns off" or "never when plugged in"). However it seems to keep the CPU on causing it to drain down the battery.
It would seem that whenever WiFi is enabled, the Android system process creates a partial wakelock that does not go away even if you turn off WiFi. The only way to resolve this is by powering off or rebooting the phone.
You can verify this in Android System Info by going into Battery-History-Other Usage-Partial Wake usage to see how much time the "Android System" process holding a partial wake.
I even did a factory reset on the device; and it is still happening so it doesn't appear to be any app that caused the issue. As I said, it works fine as long as I don't enable WiFi.
I already know of two users having this issue, but I'm wondering if folks having battery problems are going through this as well. Is anyone else having similar issues after using WiFi? I'm hoping someone will be able to identify what exactly is putting the wakelock on and we'll be able to find a fix for it. Other than not using WiFi at all or rebooting the phone after using Wifi.
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Aug 25, 2010
The problems I'm having:
- The battery is draining wicked fast.
- The phone is ridiculously hot like the radio is working overtime.
- And the screen is so sensitive that when swiping home screens the damn thing tries to go back, or skips a screen. In the browser if I scroll up or down with just one finger it tends to try to pinch zoom. And on the home screen when trying to press and hold an app it double clicks and opens it. The on screen keyboard many times just blips out when swyping trying to type one word and it ends up being 4-5.
So I tried turning the phone off and back on. No difference. Did the OTA update. No difference. I didn't even install any apps yet. But I did remove everything from my home screens to hopefully fix the battery life. No difference. I like the keyboard (miles ahead of the D1) and the fact swype comes stock, if it would only work correctly. Does every droid 2 have these problems? Are they all hot all the time? Are they all super sensitive? Are they all sucking battery at a phenomenal rate?
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Sep 24, 2010
Many of us have experienced some battery life fall out since the last update. I mentioned this in the battery life thread but I thought it deserved it own topic. I have an app that I downloaded called battery status. it has a battery history. and it says time without sleeping 7h 10m 25s ago. Thats exactally when I unplugged my phone. This explains why I am seeing 2-3% per hour loss while not using the phone and while in airplane mode. Before the update I could keep the phone in airplane mode, not usre it, and leave work with over 94% battery life. So this proves that somehow the phone is not going into sleep mode... I can guarantee that everyone else in that is experiencing battery drain since the sept 16th update is due to this reason. The question is... why the hell is this happening and why won't the phone go into sleep mode?
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Nov 18, 2010
Since I got my Captivate just a couple of weeks after it hit the market, I experienced really good battery life. I could plug the charger in at 6:00 when I get up, take it off the charger at 7:30 when I leave for work, and make it til the next morning most days.A couple of weeks ago, I left for work with a full charge, and around 11:00 I took out my phone to test WiFi coverage for some new access points we had installed in the office. The phone felt very warm, and the battery indicator was yellow. For the next couple of days it went like this. I had a spare Samsung battery from when AT&T sent us a new one for my wife's Captivate when she was having random shutdown issues, so I swapped batteries. Things were fine for 10-11 days. Then suddenly last evening about 7:30, when I went to look something up online with my phone, it was very warm again, and the battery indicator was red. Had to put it on the car charger when I left church.When I got home, I put it on the charger all night. By midday today, it was in the yellow, and it finally died about an hour ago. again the handset felt very warm. I don't have a spare USB cable here at work, so will have to wait to get home to charge it. Anything particular I should look for on the phone (running apps, etc.)? Or do I just need to go ahead and place a call to AT&T support?
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Sep 8, 2010
I'm wondering if there's a way to create playlists on my PC (or my already created iTunes playlists) and transfer it easily to my Epic phone. I can't imagine having to re-create all of my playlists again? I've got something like 1300 songs and 20+ playlists.
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Nov 24, 2009
Battery life issues for me are over. In the beggining I would be happy if the battery lasted for 2 days. Now I can have my phone always on for 7 days straight, that is 168 hrs (when using very limited wireless data connectivity of course), thanks to Galaxhero and some other tweaks.But anyway, lately I've been doing some tests regarding Google Latitude. I suspected that Latitude was messing (not just) a little bit with the battery life.So, yesterday at 9AM I unplugged the fully charged phone that had the Latitude feature on. Result: at 5PM the battery was at 90%.Today, I decided to turn off Latitude (leaving the rest of the configurations intact) and unplugged the fully charged phone again at 9AM. Result: it's 5PM and the battery status is at 100%.
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Aug 3, 2010
The last day or so after charging my phone to 100% overnight (phone is on when charging) and then putting in standby mode I'm losing like 5-7% of battery every hour.Over the weekend I was losing just 6% every 9 hours in standby mode. Today in 4 hours time I'm down to 65% already with mostly standby mode and a few minutes of browsing. I even had JuiceDefender installed since last night and it's not helping at all.To me it seems that something is in the background that is draining the battery though I when I check running services I don't see anything that shouldn't be there. When I was losing only 6% every 10 hours I did have a live wallpaper, weather/clock widget, and task killer. I didn't change anything on the next charge and now I'm constantly losing battery even in standby mode.
I have Wifi/GPS/background data off, brightness at minimum, no animations, etc. So pretty much followed all the battery saving pointers. I thought it was working good when I got just about 36 hours over the weekend with standby and moderate usage. So I don't know what has happened to my battery all of a sudden.The two times that I have managed to do 30+ hours on a single charge I had Advanced Task Killer running.However, even after doing 36 hours on one charge the next day even with ATK the battery started to drain a lot every hour in just standby. Anyone else having similar issues? I don't know what else to do at this time. I've uninstalled many of the apps thinking it might one of them causing the issue, but still having issues.
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Jul 16, 2010
Battery is draining fast on SGS. comes down from full charge at 4 am to 70% by 8 am without any usage. During the day will have to charge it twice. Any possible causes or tips to manage it? am on EDGE with air-tel but use wi-fi mostly.
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Dec 14, 2009
My battery is alright, and can last almost 2 days, but while from 100% to ~40% it drains 'normally' , from 40% to 0% it drains real fast - about 20 minutes phone call.
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Dec 2, 2010
I noticed this today, I use my phone to USB tether, and after coming home from running errands today my phone was at about 80% battery life, so I put it on the USB cord that it came with and connected it to my computer so I could check email and facebook, etc. Well after a few hours I took my phone off the charger and the battery had dropped to 40%. How is this possible, I know tethering uses power from the phone, but if its connected to the computer and charging as well, why is it still draining my battery? my droid never had this problem and i tethered all the time, is it possible that I have a bad battery?
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Nov 17, 2010
I just rooted a few days ago. Put a custom ROM on it (KaosFroyo v38). Ever since I rooted my battery dyes in about 3 to 4 hours. My phone says its awake 99.9% and the android OS is using 40-50% battery. Is it possibly the ROM? If so how can I change to a new one? I have a Droid Eris.
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Aug 7, 2010
I got my Captivate about a week ago and some far I am liking it a lot. However, I thought I was having some battery issues, as my phone is draining faster than my brother's iPhone.
Using one of the battery status widgets, I've noticed that my batter drops about 1 percent for every text that send and receive (send one text+receive one text = 1% drain) meaning that I'd only be able to send about 100 texts in a day on a full charge. Most days I don't reach that but there are some days which are pretty text heavy. Is this a normal rate at which the battery should be draining for doing something like that? I am using Juicedefender and Advanced Task Killer to monitor what is going on, and the only widget I have running is Fancy Widget.
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Nov 27, 2009
Maybe this has been talked about before but im going to ask this anyway. A couple of nights ago my battery was at about 30% (yellow) so i decided to turn my phone off and go to sleep, well when i woke up my i turned my hero back on, and the battery was at 9%. So last night the battery was low again and i decided to take the battery out and when i woke up i put it back on and my hero had the same battery life as last night
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Dec 22, 2009
I'm trying to figure out if I should ask verizon for a new battery. My eris battery life last me a full day, but my battery drops to 85% within the first hour after my phone is removed from the charger. The battery than dies slower from that point on. I figure this may be a bad battery or bad meter. Is there a way to calibrate the battery meter?
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Oct 16, 2010
I don't really think it makes a difference, but I'm running CM6 with the stock kernel and using setCPU. Normally I have great battery life but sometimes my phone dies extremely quickly and it says that the dialer is using all the battery. Does anyone know what is happening and how I can prevent this?
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Sep 30, 2010
Minimal use, but still. Probably about 20 texts and checked email 3 or 4 times. Currently unplugged for 12+ hours and my battery is at 90%!
Let me first say, I'm rooted and running a noobnl's Andromeda custom ROM, bloatware is removed, OmaDRMconfigService.drm removed.
3G and wifi off by using Quick Settings (from market) except when in use.
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Aug 4, 2010
why after upgrading galaxy to galaxo 1.6.3.3 all slowed down and all the worse for the battery is quickly discharged,What should I do to improve the work of processor?
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Aug 23, 2010
i bought the full version of systempanel last night, because i installed setcpu and tasker over the weekend and started overclocking - i wanted to try the monitoring service and try to see if there was a drastic effect on my battery... well, the battery DEFINITELY seems to be draining faster than it did yesterday, and the phone seemed to be very choppy when switching between home screens. i disabled monitoring and it seems to be more responsive again.
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Jun 8, 2013
What is keeping my phone awake through the night and hence draining my battery rapidly. I am going to post screenshots and BetterBatteryStats dump file to make it as clear as possible.
Basically, what I see is that the phone was mostly awake at night and was in deep sleep only for about 1 hour. I don't think it is normal.
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Aug 6, 2010
Just yesterday my phone was getting more than 14+ hours of battery. Now it's draining really quickly even when I'm not using it (I left it on while I was asleep). It's not facebook because I already downloading the fix and rebooted. My "time without signal" is 0% so I don't think that's the problem. I did download Quickpedia yesterday but a quick search tells me that's not the problem either.
The only other thing I did differently was switch from ADW to LauncherPro yesterday, but if that was draining the battery wouldn't it be under Android System and not standby or idle? Regardless, I switched back to ADW just to see if that works
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Oct 14, 2010
Has anyone noticed an increase in battey drain while using the Lookout Mobile Security app? I noticed my battery drain was a little higher than usual today. I also have an app called battery indicator installed and was wondering if those apps cause higher battery drain also?
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Aug 2, 2010
What is your take on the WiFi sleep policy. I do like the fact that Wi-Fi can remain on all the time, but will it be a drain on my battery? Is it better to keep the Wi-Fi to sleep on screen shut off? I am near a Wi-Fi connection for most of the day and always at home.
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Apr 19, 2010
For some reason my battery is draing QUICK in a couple hours goes dead, thinking must be some bad app? I deleted a few of the last apps I installed but it could be an update, wish it was easier to solve, but now Media is my number one battery usage, even after I uninstalled a couple new apps.
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Nov 13, 2010
Last two days my battery has been draining like crazy and my phone won't go into sleep mode. I charge before I go to sleep and take it off when it's done and it will die before I wake up in about 8 hours .
Use to be at like 97 or 95 when I get up
I've gotten pretty good at managing my battery life , I use superpower and juiceplotter to monitor it .normally I waist less than 1% an hour when not in use and the phone is asleep
I've deleted every app I've installed since 1 day before this started. Only thing unusual I see in my logs is this message (Adding Alarm{464294e8 type 2 com.android.phone })
And this
Alarm triggering: Alarm{46354990 type 2 com.google.android.location} Adding Alarm{465bbb80 type 2 com.google.android.location }non stop repeatedly every second when phone is not in use.
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