Droid 4 battery issues...unbearable. - Motorola Droid 4

I spent a few hours looking through other threads, but nothing seemed to quite fit my scenario.
Stock droid 4 with the latest over the air update.
I use the phone very sparingly during the day, and my battery drains very quickly...
Usually take off the charger around 8am and battery is below 20% by 2pm.
My usage is usually one or two 5 minute calls, and probably 10mins of facebook.
Is there a good smart action I could try?
I had one that turned off the 4g while the screen was off, but it made sending picture messages unbearable...
My battery use indicator blames screen, then OS, then facebook....
I feel as if it's not reporting the culprit correctly...
Any help is much appreciated.

F3M4 said:
I spent a few hours looking through other threads, but nothing seemed to quite fit my scenario.
Stock droid 4 with the latest over the air update.
I use the phone very sparingly during the day, and my battery drains very quickly...
Usually take off the charger around 8am and battery is below 20% by 2pm.
My usage is usually one or two 5 minute calls, and probably 10mins of facebook.
Is there a good smart action I could try?
I had one that turned off the 4g while the screen was off, but it made sending picture messages unbearable...
My battery use indicator blames screen, then OS, then facebook....
I feel as if it's not reporting the culprit correctly...
Any help is much appreciated.
Click to expand...
Click to collapse
I've had similar issues, not sure what I did to cause them. When I first got the phone, 16hrs+ with what I would consider moderate usage was normal. I've flashed AOKP and the battery life is back to normal (on track for 15hrs today), but the stock rom is a disaster.
I'll let you know what I turn up (if anything), but I have a feeling I'll probably be wiping everything out since I actually like the stock ROM (plus no hw accel in ICS).
Edit: Also, how did you have a smart action turn 4G on/off? I was under the impression we can't control that at all, except via system menu. Is a downside to VZW's 4G...

I believe that was actually via the app Juicedefender.
even with it on i was still only getting about 8 hours...
I am semi interested in rooting/flashing a rom etc, but my last experience there was a disaster(thanks to a ****ty droid eris)

I disabled all widgets except for facebook, being that it's the only one I use...
The only non essential apps running all the time are battery circle, and facebook(widget i guess?)
I'm now charged to 100%, gonna see where these changes take me.

What are your settings as far as Brightness, Haptic Feedback, Screen Timeout, Vibration (Incoming Message/Call or End Call). Also, I recommend just using the FB app instead of the widget as I notice most of the widgets draw power even when the screen is off.
I am currently running Eclipse 1.3.7 w/ xrjxMod, Brightness all the way down, all vibration and haptic feedback is off. Since I am rooted I also used ROM Toolbox to adjust my scan interval to the minimum. I have the screen timeout to the max, but I always turn it off manually after use. I am constantly on either FB, XDA, txt messages or the occasional game/Netflix use and with the exception of watching a full episode or movie on Netflix, I am averaging about 6 to 8 hours on a full charge.

My battery is now sitting at 46%.
Since my last post I used the phone for 18mins of phone calls and nothing else.
The breakdown is 46% voice, 23% android OS, 12% display, 9% phone idle, 8% cell standby...
The brightness is as low as possible, haptic feedback is off, phone is set to vibrate(thats the only way I get calls)
All three location settings are on....Should I turn them all off? I dont know which are important...

I agree with azreal. Check your setting. Haptic feedback sucks up juice and unless you like it is more of an annoyance imo. There is an option for it in language and keyboard as well as in the screen menu for your soft keys.
Do you have your gmail setup to constantly sync? If its not needed un-check it in you accounts menu.
Are you leaving wifi on when your not in range of a remebered router?
If you are not in a strong 4g area set it to cdma only in your wifi and networks menu.
My opinion of apps to extend battery life is a negative one. Its an app that always runs to make things stop running???? Some work ok but most do not.
If all else fails I would suggest the eclipse rom for the d4. As long as you are safestrapped and follow directions properly you can't go wrong. In the case of a bootloop shut the phone off and reboot and you will come back to the recovery screen to try it again or go back to stock. Its nearly foolproof.
You may also want to do a battery stat wipe if your still having issues. Just discharge your phone completly, then fully charge wipe stats and completly discharge again then fully charge once more, and see if you notice a difference.
I get around 15-16hrs on stock and up to 22hrs on eclipse (varies with usage) by following these few things.
Sent from my DROID4 using Tapatalk

I have wifi permanently off...
I have 4g almost all the time.
I use a gmail, but I cannot find a way to limit it's syncing...I still want it to check for emails, I guess just not as frequently.

F3M4 said:
I have wifi permanently off...
I have 4g almost all the time.
I use a gmail, but I cannot find a way to limit it's syncing...I still want it to check for emails, I guess just not as frequently.
Click to expand...
Click to collapse
I would hazard a guess that having 4G on all the time is one of the main culprits. I leave 4G off unless I am browsing the web, forums, or something else where the extra speed is nice. I use the 4G Toggle widget from the market to turn 4G on and off. I always turn it off before hitting the power button to turn off the screen. No need for it to be sucking juice when I'm not actively using my phone.
Sent from my DROID4 using XDA

I just installed the toggle switch, I'm gonna give it a go.

To turn off the gmail sync go to accounts click on you tap the account. Then uncheck the sync box.
When you want to check your email go to the gmail app hit the menu and sync. Takes about 30 seconds extra but saves some battery.
Sent from my DROID4 using Tapatalk

I'm always skeptical when people blame gmail sync or 4G on battery issues. When the phone was new on stock, and on ICS now, I have three gmail accounts, a yahoo account, and one Exchange account all syncing in the background + 4G on 24/7 and getting around 16hrs of battery life. This was the case for weeks. Then I started having trouble with Verizon's Backup Manager, did a factory reset, and now stock battery life is ~ 8hrs, with 4G OFF
I'm thinking at the very least, there is an issue with the stock battery information panel. My feeling is it hides battery use by the stock bloatware...

podspi said:
I'm always skeptical when people blame gmail sync or 4G on battery issues. When the phone was new on stock, and on ICS now, I have three gmail accounts, a yahoo account, and one Exchange account all syncing in the background + 4G on 24/7 and getting around 16hrs of battery life. This was the case for weeks. Then I started having trouble with Verizon's Backup Manager, did a factory reset, and now stock battery life is ~ 8hrs, with 4G OFF
I'm thinking at the very least, there is an issue with the stock battery information panel. My feeling is it hides battery use by the stock bloatware...
Click to expand...
Click to collapse
I agree that there is probably more to it than just 4G or syncing. Especially where people are getting only 8 hours or so battery life. I personally have noticed definite battery savings with 4G toggled off when not in use though. I can usually still go most of the day even with it toggled on all day but with 4G off, except when I actually need it, I usually get to bed with 30% - 40% battery left as opposed to 10% - 20% left with 4G on all day.
Sent from my DROID4 using XDA

I would also turn all 3 locations off. No need to run the gps when not using navigation. I keep my 4G on as I use it frequently but I am going to try the toggle as well for the extra savings on battery when not netflixing/browsing.
Sent from my DROID4 using XDA

Yep. I'm also having big issues with my Droid 4 battery. First I thought it was the firewall. But even after uninstalling the app, the drainage is absurd. The battery drains so fast, the phone gets warm.
I don't know where to look. I read something about logcat in another thread but could't find it anymore.
My Droid 4 can work about 5 hours on one battery charge. No gps, no 4g and no wifi. If I turn on wifi, it lasts about 8 hours, so I'm suspecting that some process loops when in non WIFI mode.

If you're out of options try using an app called watchdog. It let's you see if there is an app that's draining your battery unusually fast.

Thanks for the tip. But what whatchdog should I use? There are many apps called watchdog

vmu said:
Thanks for the tip. But what whatchdog should I use? There are many apps called watchdog
Click to expand...
Click to collapse
Watchdog task manager lite (free version).

I tried that this morning. Still poor battery life on stock, but watchdog doesn't flag anything. Very weird
Oh well, I would definitely recommend AOKP for anybody having battery problems.
For me today: 4 hours 55 minutes since unplug, 80% left.
Screen time on: 50 minutes (!)
That being said, I do keep my screen on pretty low. Still, you can tell I've been using it...

Watchdog couldn't help me but. My data monitor showed that motorola.services was generating a lot of data the past few days (800+ MB :O ) and responsible for the battery drainage. I blocked it with droidwall. It's better now, but sometimes it still pops up and generates data despite the fact it's blocked.
So glad that I have an unlimited internet plan or else I was really screwed

Related

[Q] Why won't my N1 battery last more then half a day?

Hi I'm with Fido using an AT&T N1. My battery doesn't last me a full day. I thought maybe it was a defective battery, so I ordered a new one. This didn't solve my issue. I still have to charge it early in the afternoon and It's not like I'm watching video's it's just sitting there on my desk.
Anybody having the same problems or has a solution?
Thanks
Check what's using your battery, and act accordingly.
Are you on the wifis when it is at your desk? If not, how many bars of reception are you getting?
Root, undervolted kernel, more efficient roms, sync settings, apn control, brightness settings, battery calibration.
Welcome to android
Were all searching for ways to make our phones last longer/dynamic/faster.
Sent from my Google Phone
It says 67% of use is display, I set it to shut off after 30 seconds.
The wifi and BT are off.
Another thing I find weird. I have the dock. Every time i remove it from the dock and have to draw the password pattern, it's like the screen calibration is messed up. I have to close the screen and open it to get it working properly. This also makes it impossible to answer the phone when it rings while it's docked. I remove the phone and the slide to answer doesn't work as if it's not calibrated.
Check that your CPU isn't running at 100% frequency because of some rogue app.
Check that your phone has at least a couple of bars reception.
My N1 on AT&T runs 4.5%/hr usage when I'm not actively using it, around 6% if I'm doing typical stuff with it (reading email, web, etc).
It's on 3G, rarely use wifi (it's off), GPS is on, Bluetooth is on, K9 Mail is doing Push IMAP, Beautiful Weather is updating, misc other stuff is likely updating. Tasker is running doing lots of stuff, one of them is grabbing my GPS location and uploading it to my website every 10 minutes.
No IM, Facebook, or Twitter automatically running/updating.
I don't obsess over the screen brightness, generally leave it at Auto except when doing navigation in the car (It's never bright enough during the day) and I tend to pick dark themes but that's mainly because I don't like dark-on-white themes period on my phone.
adri_ment said:
It says 67% of use is display, I set it to shut off after 30 seconds.
Click to expand...
Click to collapse
Where does it say display use is 67%? In settings> about phone > battery use?
Does your phone feel hot? I notice sometimes that I'll be walking around and my phone is like burning a hole in my pocket, not literally but very hot. I noticed that when I installed wildmonks kernel and SetCPU that my battery increased TONS.
Some general things to check:
Auto email push
Cell stand by (look at reception)
Widgets auto refreshing
CPU frequency
I make sure all of the above is working properly, and my battery lasts for 2 days with light-medium usage
Sort of related question.... occasionally, I'll have "android system" just chew through my battery....if I let it just run for a few days, or if I clear the dalvik cache, it seems to fix itself, but I'm really clueless as to what is causing this....any ideas?
Don't know, but when it happens - it means the same thing I've mentioned multiple times in multiple different threads, some apps can cause the kernel to run in loop of some sorts - running at 100% CPU speed and eating the battery very quickly. Reboot sorts it out until it happens next time. Finding and uninstalling the rogue app sorts the issue, but it's a bit pain. Task killers don't help even a tiny bit, since they can't restart system service, and it's not the app that's running the loop.
Actually, for me, only clearing dalvik cache sorted it out. I had my battery die, swapped in a spare, and that one died within an hour or two....soooo yeah, reboot def did not fix the problem! xD
MaximReapage said:
Actually, for me, only clearing dalvik cache sorted it out. I had my battery die, swapped in a spare, and that one died within an hour or two....soooo yeah, reboot def did not fix the problem! xD
Click to expand...
Click to collapse
what is your set up
Sent from my Nexus One using XDA App
Use WiFi whenever you can. WiFi will more than double your cc very life over using 3g. Even just sitting there idle, its a huge difference.
ChongoDroid said:
what is your set up
Sent from my Nexus One using XDA App
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=714184
FRG83 blackbar version
Try super power beta.very impressive! !!what a genius! Will contribute soon!
Sent from my Nexus One using XDA App

Extreme battery drain on extended battery

Please bare with me, I am a fairly novice xda user.
I purchased my Bionic at launch, and it has been working perfectly until about a week ago. I always run the phone on stock OS not rooted, automatic brightness, 4g turned off, no wifi/sync/bluetooth. I would generally get down to 20% of my battery from 7 am to midnight on these settings, which was fantastic.
Suddenly, I now lose 10% every 20 minutes. This is not an exaggeration, I have been testing it with Battery Spy. CPU Spy reports that my phone never goes into deep sleep and is always running at the lowest mhz setting when idle.
Under battery usage, Cell Standby is reporting 45%, then Phone Idle at 35%, then Screen at 15%. The remainder its split between K9 Mail and Handcent SMS.
I have uninstalled everything that I thought could be causing this... Facebook, Google+, etc. Apart from the stock bloatware and k9/Handcent, my phone is like new. The best I could do is a factory reset at this point...
I don't think it is a bad battery because the stock battery goes from 100% to 0 in less than an hour when it would last half a day beforehand. I am really at a loss.
One thing I do know is that the 3g and bars are almost always blue, which I think it means is transmitting data. Maybe this is the culprit?
Please pardon my ignorance with the whole issue. Any help would be very, very appreciated. The Bionic was the best phone I have ever owned up until this battery fiasco, and I would like to find out why this is happening.
Thank you.
EDIT: would just like to update, Battery Spy reads that my phone is running at 104° Fahrenheit. I do not know if this is normal, but this was after an hour since a cold boot. Sounds high to me but I'm not sure.
Sent from my DROID BIONIC using XDA App
Sounds like you have some thing that is really using up some cpu cycles. One way to see what's going on is to install the app Android System Info from the market. It has a section called Tasks and it will let you look and see what part of the system is using how much cpu. I do not think you have to be rooted to use this, but I could be wrong. I did go to the market and look and saw no mention of needing to be rooted.
I know this will sound extreme, but I would definitely do it if this was happening to my phone: Factory Reset and start fresh.
Good luck.
Thank you for the advice. I installed it, and appear from the Android System Info app taking up 50% of my cpu, and Android System using 4%, everything else was listed at 0.
Sent from my DROID BIONIC using XDA App
Feoen said:
Thank you for the advice. I installed it, and appear from the Android System Info app taking up 50% of my cpu, and Android System using 4%, everything else was listed at 0.
Sent from my DROID BIONIC using XDA App
Click to expand...
Click to collapse
Well, that didn't help much. Oh well, I would definitely do the Factory Reset then. Again that's just the way I would handle it as something is going on with your phone that wasn't happening earlier. Just go to the Privacy settings and make sure you have Backup and Automatic Restore checked. If your launcher has a backup feature, go to preferences and do a backup of the launcher settings. Then do the Factory Reset. It's a pain to have to setup everything again, but a reset really does cure a lot of ills that pop up.
Good luck.
Oh BTW, here's some general Battery saving suggestions:
Battery Life – BY: NoBloatware on DF
consider doing a factory reset. Do not sync apps, wifi connections, etc. with Google services as that may cause a problem. Install all apps and wifi connections from scratch. A bit of a pain, but not too bad.- install a home/launcher replacement. I use Go Launcher EX, which is free, and I love it. No reason not to try out an alternative launcher as you can always go back to how you had it.
- don't use an automatic task killer--not even the one that comes with the phone. Reboot your phone and look at what's running. If anything that you've installed is running and there's no reason for it, then uninstall it and find an alternative that behaves. Ignore any stock apps that run on boot as I've found them to be more or less benign.
- weather widgets, live wallpapers, news/social feeds, any app or service that you use that runs--do without it if you can.
- don't use antivirus
- the DLNA app pops up a dialog box that will set your WIFI sleep policy to never. The default is "turn off when screen turns off" and I personally think that this setting is the best thing for battery life. Under wifi settings view your connections then hit menu to see "Advanced options" where you can set the sleep policy
- if you have access to wifi, leave it toggled on as it is more efficient than 3G. This is different from the sleep policy.
- I leave GPS toggled on too by the way. Apps use it as needed. When I'm done with Maps or an app that uses it, I'm sure to return to the home screen so GPS can stop. Under wireless settings turn on "Google location services" so that an app is able to use network resources to get your location instead of GPS. I have "VZW location services" turned off--don't know why that option is even there. By the way, I increase the speed of voice output > text to speech > speech rate because I like the directions to get spit out faster. That saves a bit of battery. Turning off the display and just listening for directions help. Also, often I just get the directions and then exit back to the home screen: GPS uses so much battery I try to get it over with ASAP.
- when you get a new battery, do a factory reset, or an OS upgrade run your battery all the way down until the phone shuts off and then charge the battery all the way up. This will callibrate the phone's understanding of the battery's capacity. Do this once every month or two also, but don't do it too often if you can help it.
- I have my battery set to "Performance Mode" and data is on all the time because I am on call 24x7. If you don't mind, try out a more conservative battery profile to save more gobs of energy.
- set screen brightness to "Automatic"
- under Accounts, click on any account listed and turn off sync for any items that you're not interested in syncing. For example, Google Books if you don't use it. Don't use Backup Assistant--I prefer syncing my contacts with Google. You don't need both. Also go into your contacts > menu > display options > backup assistant > UNCHECK. Also do contacts > menu > more > settings > contact storage > and select your Google account and "remember this choice"
- if you never use bluetooth then toggle it off. If you do use it sometimes, it's fine to leave it toggled on all the time.
- consider turning off voice privacy. This may not be a big deal but it will save some processing (and therefore battery). It may also improve call quality.
- turn off haptic feedback, animations, and any un-needed sounds in Android settings and in your apps
- set your screen timeout to as low a time as you can stand (I use 1 minute) and manually turn the screen off when you're done using the phone. I use an app to lock the screen so I don't wear out my power button...as happened on my original droid.
- turn off in-pocket detection
- keyboard: turn off vibrate on keypress and sounds for any keyboards you use
- use a red screen background. On the original Droid screen--not sure about this Droid 3 screen--red was the most efficient color that could be displayed. Anyone know if this still holds true?
- camera app: i like keeping location on and flash on auto. Consider turning location off or at least returning to the home screen ASAP when using camera if location for camera is on.
- in stock browser the default home page is Google and it uses your location. This is a bad idea as it can waste your battery for no reason. Make something else your home page and make sure to close any web page that uses your location when you're done viewing it.
- charge your phone via the wall charger instead of computer USB as it is faster. Also, don't use long USB cords--use regular power extension cords instead. I stick with the charger that came with the phone.
Feoen said:
Please bare with me, I am a fairly novice xda user.
I purchased my Bionic at launch, and it has been working perfectly until about a week ago. I always run the phone on stock OS not rooted, automatic brightness, 4g turned off, no wifi/sync/bluetooth. I would generally get down to 20% of my battery from 7 am to midnight on these settings, which was fantastic.
Suddenly, I now lose 10% every 20 minutes. This is not an exaggeration, I have been testing it with Battery Spy. CPU Spy reports that my phone never goes into deep sleep and is always running at the lowest mhz setting when idle.
Under battery usage, Cell Standby is reporting 45%, then Phone Idle at 35%, then Screen at 15%. The remainder its split between K9 Mail and Handcent SMS.
I have uninstalled everything that I thought could be causing this... Facebook, Google+, etc. Apart from the stock bloatware and k9/Handcent, my phone is like new. The best I could do is a factory reset at this point...
I don't think it is a bad battery because the stock battery goes from 100% to 0 in less than an hour when it would last half a day beforehand. I am really at a loss.
One thing I do know is that the 3g and bars are almost always blue, which I think it means is transmitting data. Maybe this is the culprit?
Please pardon my ignorance with the whole issue. Any help would be very, very appreciated. The Bionic was the best phone I have ever owned up until this battery fiasco, and I would like to find out why this is happening.
Thank you.
EDIT: would just like to update, Battery Spy reads that my phone is running at 104° Fahrenheit. I do not know if this is normal, but this was after an hour since a cold boot. Sounds high to me but I'm not sure.
Sent from my DROID BIONIC using XDA App
Click to expand...
Click to collapse
i have the same problem man! i have the extended battery and it lasts maybe 9 hours and i have tried several batteries from verizon store i keep swapping them lol and im on 4G all day and performance battery and data on all 24/7 too and i could get 20 hours ++ out of thunderbolt extended and cant get half that with bionic. there is something going on and nobody at verizon can figure my problem out!
Format the sd card in ur pc. Then put sd card back in bionic and transfer ur stuff back on it. Ur bionic is scanning sd card non stop for errors drainin battery. I had this problem for weeks beofre i figured this out. Was gettin 7-8 hrs on ext battery. Now ibget 30 hrs
Sent from my DROID BIONIC using xda premium
I had a similar issue and the problem was my sim card needing to be reinstalled. It was not seaded correctly and caused my radio to act up. I truned off the phone and removed the sim card and then reinserted it and rebooted and I was back to normal.
I am not sure if this is your problem but it is easy enough to try.
Would this apply if I am not using 4g? I have 4g disabled and it was my impression that the sim card was only used for 4g.
I uninstalled k9 which for some reason began using 7% of my battery though I had never opened it since reboot and now I am getting a loss of 10% per hour of normal use.
I went to bed with the battery at 70 and woke up with it at the same so I at least solved the sleeping problem. Not sure why k9 was responsible though.
Sent from my DROID BIONIC using XDA App

Batery Usage HELP!!!!

I am currently running 5.7.893 rooted and I have been having battery issues lately. The problem is I sit here , 1h 37m off of the charger and the phone is reading 80%. The breakdown looks like this:
Android OS 39%
Maps 12%
Display 11%
WiFi 9%
and a couple other small things.
It seems like my phone is never going into standby and I can't figure out why. I've checked a bunch of things and no luck. If I click the chart at the top of battery info, I see "phone signal" taking a constant drain on the battery.
The only thing I can think of to do is to factory reset the phone and see if that helps.
Any ideas?
I would recommend the Factory Reset. But first, is there a chance it's a battery calibration issue? Have you checked the actual mV reading with an apps such as Spare Parts?
Before you do the reset, make sure the Backup and Restore are checked in the Privacy setting. And then after the reset make sure you check the two options presented about Backup and Restore. These show during the new setup after you enter you gmail info. Also, if not in a 4G area, if possible connect to wifi before you finish the setup as your apps will start downloading automatically. Good luck.
I did try battery calibration first without luck. I just did the factory reset and I'm charging to 100% now. I haven't done the titanium backup restore, because I want to see if installing the apps I use from scratch again will fix it rather than just restoring them.
Beefcake550 said:
I did try battery calibration first without luck. I just did the factory reset and I'm charging to 100% now. I haven't done the titanium backup restore, because I want to see if installing the apps I use from scratch again will fix it rather than just restoring them.
Click to expand...
Click to collapse
That's a good idea. Lately I've been letting Google install the apps and then I use Titanium to only restore data to select apps (such as Tapatalk).
Sent from my DROID BIONIC using Tapatalk
Well, now I'm confused. I haven't installed any apps yet after the factory reset. after 2h 50m of just sitting there, it's reporting:
90% still
32% Android OS
20% phone idle
16% display
16% cell standby
10% wifi
looks much better, but does this look right? I would have expected cell standby to be the dominant process.
wifi
Having the exact same problem. Seems to be draining battery at the same rate it was before the update (which was supposed to fix battery drain or so I thought). I'm-a try a little experimenting before doing a factory reset (HATE doing them). Right now, I'm theorizing the built-in Google backup process might be responsible because I've never seen so much drain before and I usually turn Google backup off since I use TiBu but forgot to disable it after the update.
In the meantime, I've prepared myself for the battery issues by purchasing the battery dock and an extra battery for three total. Swapping batteries is better than staying tethered to a wall charger so much.
EDIT 1: Looks like that did nothing. Next, I'll try wiping cache (didn't do this when I updated)
EDIT 2: Looks like not much change from wiping cache. Guess I will be trying that reset.
EDIT 3: Looks like I use the phrase "looks like" too much. However, the factory reset appears to have resolved the issue, at least initially. Fired up the phone and Android OS was only 8% of the battery usage after 10-15 minutes. Will check back if anything changes.
Disable push sync on your device.
changing and controlling your sync settings will solve your standby issues and improve your battery life.
Sent from my DROID BIONIC using xda premium
I think a better way of looking it this is that your phone isn't spending 32% of its time using the Android OS and only 20% of its time being idle. That's just how much battery they are using. Your phone could be spending 3 hours "idle" and only 15 minutes using the OS and this is how it could read. It's just how much battery each one is using, not how much time each one is spending doing that particular task.
Beefcake550 said:
Well, now I'm confused. I haven't installed any apps yet after the factory reset. after 2h 50m of just sitting there, it's reporting:
90% still
32% Android OS
20% phone idle
16% display
16% cell standby
10% wifi
looks much better, but does this look right? I would have expected cell standby to be the dominant process.
wifi
Click to expand...
Click to collapse
Are you on stock ROM? I'm running the Liberty ROM and sitting at 78% battery at 24hrs13min on stock battery. Cell standby 49%, Phone idle 48%, Display 3%.
djr4x4 said:
Are you on stock ROM? I'm running the Liberty ROM and sitting at 78% battery at 24hrs13min on stock battery. Cell standby 49%, Phone idle 48%, Display 3%.
Click to expand...
Click to collapse
I call BS to this...unless you have had airplane mode on the whole time...lol.
Sent from my DROID BIONIC using XDA App
I'm with noosympathy on that one.
A ROM will improve better life but not that much... maybe if you ran it on 3G only, but then again, that is a maybe.
A lot of your battery is used when your phone is syncing.
When connected to 4G, it uses a lot of power trying to get a signal as well.
To help get some more life out of your battery, disable push syncing and notifications.
I set mine to 1 hour because I don't like being bothered for stupid bs.
When your in a place where you know you don't get 4G, turn it off. It is going to try to aquire a 4g signal while running on 3G the whole time draining your battery.
If am out and don't need 4G, I turn it off. It only takes about 15 seconds to turn it back on and have it link up.
Do you really need to be on 4G to play angry birds?
I recommend installing tasker. You can program stuff like this into it.
Sent from my Xoom using xda premium
Maybe I'm weird, but I don't have a need for 4G data all the time. 95% of the time I leave it turned off and battery life is quite nice with the Bionic just riding on 3G. If I'm in a situation where 4G would be useful I'll manually turn it on. Battery life is so much nicer when the radios in the phone aren't constantly fighting for supremacy.
Call it as you will. I leave data off unless I need it for something and when I do use it I only use 3g. Most of the time I'm in a wifi area so I'll just use wifi. Speaking of wifi I leave that turned off also unless I need to use it then I turn that on for the time being and turn it back off when I'm done with it. Other then that I use my phone mainly for texting, and calling when need be. If I'm home I use the home phone to talk, and when I'm at work, I use my cell strictly for text and if you really need me I'll talk to you by office phone. I also leave gps off. I see no reason to leave it on. I tried to post a pic of battery life yesterday but it would not take for some reason.. Like I said. You can call BS all you like. I know what my phone did for the last 30 hrs. Last night I charged it. Downloaded a few apps, and updated some app and played angry birds for awhile last night before I threw it on the charger. Maybe that charge was a fluke. I dunno, but that charge was honestly what I had. Pretty sad to sign up to a forum, look for good info and also try and help out someone else with this phone and give insight and then be called a liar by other folks. Maybe I just won't post anymore. Hope you all enjoy your phones and ROM's. I'll just tend to myself.

Getting the most out of your battery

Ok going to try and start a conversation here to get feedback from everyone on what you guys do to get the most out of your battery. I see alot of people always asking what kernal is best for battery life and some people seem to have horrible battery life and some have exceptional battery life. I personally get decent battery life. Nothing super amazing but that comes down to the way I use my phone.
My current battery I'm using - Andida 2000mah battery
http://www.ebay.ca/itm/280843217453...X:IT&_trksid=p3984.m1497.l2649#ht_4497wt_1396
I also have - GTMax 3500mah battery
http://www.amazon.ca/GTMax-Extended-Battery-3500mAh-Microfiber/dp/B006VAP102/ref=pd_rhf_se_p_t_4
The Andida gives me generally a extra 2-3 hours more over the stock. I had to cycle the battery 4 times before I started seeing any real improvements. If I take these off the charger at 6:30am I can ussually make it to around 10pm without needing to charge.
The GTMax get me through a day (630am - midnight) with around 50% left.
Now keep in mind this is based on my usage habits, and when I'm at work my signal is horrible so it drains a bit harder for the 8 hours I'm at work.
I don't have LTE where I live or work, I do get LTE in areas close by but on a regular day I don't see it. With the bad signal at work I've started to switch to gsm only mode (phone was constantly switching from Edge to 3g/4g and wouldn't provide a stable connection most of the time). This seems to have helped my battery at work.
When I flash a new rom I always give it at least 2 good full battery cycles before judging the battery life on it.
Ok onto some apps. My first foray into getting better battery life started with wanting to control my data. I used Juice Defender to that but I found that having to wait for the data to turn back on was at some times taking way to long and even sometimes I would have to reboot to get it back. Tried a few others and had similar experiences. When it works its nice and I did see some gain from it but at the same time it seemed bloated and slow and I decided I like having my data on and readily available quickly. After some searching I found an awesome app...
Better Battery Stats
Play Store link - https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats&hl=en
XDA Forum link - http://forum.xda-developers.com/showthread.php?t=1179809
I highly recommend reading up on this app and trying it out. If your seeing a big drain on you battery while the screen is off, it's probably because there is something that is keeping it from going into a deep sleep mode. This won't save you any battery just by installing it but with a little work it can make a pretty good difference.
Ok now this is where I'm looking for suggestions, are there apps that you find specifically run smoother or are lighter than their stock counterparts or rival apps that put less of a strain on the battery?
Instead of the stock messaging app I run Pansi SMS. It gives me a few extra options but I never really used the stock mms on ICS so I can only compare it to Handcent SMS and I think it is definitely lighter and a lil bit more battery friendly. It's not a huge difference but I try and squeeze everything I can w/o giving up functionality.
For a launcher I'm running apex right now, but for a lightweight launcher I'd recommend FTL. Runs really nice and smooth, nothing fancy about it, just fast and light.
Some apps sometimes can just be poorly coded and thus have a bad effect on battery life. Alot of people seem to feel the Facebook app is one such app that suffers from that. The app that gets the most recommendations as a replacement and being a bit easier on the battery is Friendcaster. I tend to agree with that, and would recommend trying it out.
I'd really like to hear about what everyone else does to try and squeeze out the most of their battery. Theres more stuff that I do, such as reducing the amount of things that are synced to only the stuff I actually want, default settings just sync everything and I don't feel I need to sync my contacts on a daily basis as I rarely change them around. So share your tips, experiences good and bad with apps in regards to your battery, and if theres enough feedback I'll try and re-organize this into a bit better structure.
I personally always leave data off. WiFi is on a lot. I wrote this:http://forum.xda-developers.com/showthread.php?t=1631831
I am very please to get a day and a half with the extended battery. Generally I am always texting,also.
iStatiK said:
I personally always leave data off. WiFi is on a lot. I wrote this:http://forum.xda-developers.com/showthread.php?t=1631831
I am very please to get a day and a half with the extended battery. Generally I am always texting,also.
Click to expand...
Click to collapse
Right here, this is the key. I have data off all the time. I only turn it on when I need to look something up or browse. IMO auto updates really kill the battery and aren't worth leaving your data on all the time. I'm on wifi a lot as well. Currently I'm on DarkRaider and I'm ending the day with around 30-40%, great improvement over stock.
It seems that with every new handset that comes out this is one of the hottest topics but the parameters all always the same with regard to battery life.
The 3 biggest things that drain our batteries are Display Usage, Data Connection & Radio Cell Connection. These are listed in order of current used. Of the 3 we can have some control over the 1st 2. Lower screen brightness and disconnect data when not needed and use wifi when possible. While wifi does use a good amount of current it's not as much as mobile data. The last one, Radio Cell Connection, we have very little control over. It's also the reason we see people having great differences in battery life. The further the phone is from the tower it's connected to the more juice it needs to make a good connection. So other than leaving the phone in airplane mode or planning your life around where towers are, neither of which are very practical, there is not much we can do there.
To get the best all around life from Li-ion batteries do not fully discharge them very often and also don't keep them plugged in after they're fully charged. It's best to recharge them when they get down to 20-30% and unplug them after they're charged. They also don't need to be fully charged every time, they have no memory. If your on the go and can only leave it plugged in for a short period of time that's fine. Also if you have more than one battery and your not going to use the 2nd one for a while don't store it at full charge. drop it down to 50-60% before pulling it out.
I'll update this post when I get home tonight with more info and links. Hope it helps.
slapshot30 said:
Right here, this is the key. I have data off all the time. I only turn it on when I need to look something up or browse. IMO auto updates really kill the battery and aren't worth leaving your data on all the time. I'm on wifi a lot as well. Currently I'm on DarkRaider and I'm ending the day with around 30-40%, great improvement over stock.
Click to expand...
Click to collapse
I always make sure my auto updates are off. WiFi isn't an option for me when I'm working. How do you manage your data connection? Do you manually turn it on and off or use an app? I never really tried manually turning the mobile data on/off, just found with apps like JD that it sometimes took way too long to establish a connection. I always shut off my wifi when I leave for work. I know with ICS the widget toggles for gps don't work, they take you to the settings to turn it off, is there one for mobile data?
iStatiK said:
I personally always leave data off. WiFi is on a lot. I wrote this:http://forum.xda-developers.com/showthread.php?t=1631831
I am very please to get a day and a half with the extended battery. Generally I am always texting,also.
Click to expand...
Click to collapse
With my 3500mah battery I don't really worry about turning anything off. That thing is great. Made a bumper case for it but I miss having a real case on it so I picked up the 2000mah andida battery so I could get a few more hours on some days. If someone ever made a real case for those big batteries i'd use it all the time.
citsong said:
I always make sure my auto updates are off. WiFi isn't an option for me when I'm working. How do you manage your data connection? Do you manually turn it on and off or use an app? I never really tried manually turning the mobile data on/off, just found with apps like JD that it sometimes took way too long to establish a connection. I always shut off my wifi when I leave for work. I know with ICS the widget toggles for gps don't work, they take you to the settings to turn it off, is there one for mobile data?
Click to expand...
Click to collapse
Try 2x Battery from the store. It will shut off data as soon as the the phone sleeps, it reconnects at screen on after unlock almost instantly. It also allows you to white list apps, like Pandora. The free version only allows 1 app though.
citsong said:
I always make sure my auto updates are off. WiFi isn't an option for me when I'm working. How do you manage your data connection? Do you manually turn it on and off or use an app? I never really tried manually turning the mobile data on/off, just found with apps like JD that it sometimes took way too long to establish a connection. I always shut off my wifi when I leave for work. I know with ICS the widget toggles for gps don't work, they take you to the settings to turn it off, is there one for mobile data?
Click to expand...
Click to collapse
The DarkRaider ROM I am using has a nice extended settings menu in the notification bar with a data toggle. I also have a nice widget from switchpro widgets where I can customize what kinds of things I want to be able to toggle from my homescreen. Currently I have data/wifi/vibrate-silent/gps. Doesn't take long at all when I toggle the data on/off, it's pretty much instant.
citsong said:
I always make sure my auto updates are off. WiFi isn't an option for me when I'm working. How do you manage your data connection? Do you manually turn it on and off or use an app? I never really tried manually turning the mobile data on/off, just found with apps like JD that it sometimes took way too long to establish a connection. I always shut off my wifi when I leave for work. I know with ICS the widget toggles for gps don't work, they take you to the settings to turn it off, is there one for mobile data?
Click to expand...
Click to collapse
I use the 2X Battery app. When the phone goes to sleep, the app turns off the data radio. I can still get calls and text messages. I don't have a need for push notification of e-mail, etc., so this saves me some battery usage. Of course, if e-mail and other app notifications are important, this app will help only if you are willing to wait until you wake up the phone.
Here's what I do. I'm on the stock HTC battery.
I SetCPU screen off to 192/192 ondemand, in call to 810/192 ondemand, and regular use to 810/192 ondemand.
I listen to about 2 hours of music a day, have 3 GMail accounts on autosync, a Facebook account on hourly autosync and HTC Weather on hourly sync. Automatic brightness. Roughly 1.5 hours of cumulative web-browsing, no apps/games used.
I never use WiFi and I don't live in an LTE area.
I typically end the day (19-21 hours unplugged) with ~40% remaining.
Now I am not sure if living in area with LTE is a bless or curse....
I would unplug around 7am everyday, and by the time I get home (around 6pm) I would always in red mode (meaning, it is either 14% or under). Using the Holics-0.6 with the kernel that came with it, battery seems to die fast. Even when I am on the stock ICS before this, seems LTE would just bleed this baby to death....
Reading other comments, might as well start looking for a bigger battery....
It actually seems like I'm getting better battery since LTE came to my town. I'm on dark raider using kozmick's rc1 kernel and it's even better now. Try turning off vibration feedback...I think it's located in the sounds menu in settings. You can also try using automatic brightness or even just setting it to stay at 50% or lower. The screen is a battery hog. There's a stickied thread somewhere on here that has other things you can try too.
Sent from my HTC PH39100 using xda premium
Really is a shame that we have to disable or ease everything back so much to get through the day on a battery. Anyhow, I have a Velocity (which comes out of the box with the processor running at 1500) on Dark Raider. Therefore I use SetCPU to throttle the beast back, depending upon the circumstances. It only is allowed to run at 1500 when on charge and down to 400 when battery below 25 percent. I also use 2X Battery to take care of the netowrk and Wi-Fi and have purchased the andida battery for extended life. I also have JD installed, however it is rarely used - reason is that I am in agreeance with "citsong" that it takes too long to establish connections, even causing me general connection issues from time to time. So for around $25 AUD you can get through the day on a battery with moderate use and reasonable performance. I have not tried the extended battery pack, though I will probably get one of those as well...not sure which are the best???
I personally don't like the vibrate response thing, so I turn that off right out of the box, also, auto brightness is another that I set. When I go in the battery tab to see what is bleeding it to death, and most of it would be the display....
Though, vivid seem to have a smaller battery compared to other phones of similar functions and/or size, so that might be the reason I am not really seeing a very good battery life?
deathnai said:
I personally don't like the vibrate response thing, so I turn that off right out of the box, also, auto brightness is another that I set. When I go in the battery tab to see what is bleeding it to death, and most of it would be the display....
Though, vivid seem to have a smaller battery compared to other phones of similar functions and/or size, so that might be the reason I am not really seeing a very good battery life?
Click to expand...
Click to collapse
Actually there are only a couple phones that have a larger battery...
The galaxy note and the atrix are the ones that come to mind...
And the note has a larger screen and Samsung's rediculious samoled screen which eats battery like potato chips...
Sent from my HTC PH39100 using Tapatalk 2
rignfool said:
Actually there are only a couple phones that have a larger battery...
The galaxy note and the atrix are the ones that come to mind...
And the note has a larger screen and Samsung's rediculious samoled screen which eats battery like potato chips...
Sent from my HTC PH39100 using Tapatalk 2
Click to expand...
Click to collapse
My solution was to get a larger battery (2100mAh, the largest one with stock format) and using juice defender to control my Data Connection. I am getting about 60% more using time on a normal usage whan before!
I actually have both Motorola Atrix 2 and HTC Vivid. However, my Atrix 2 would last about two days between charges, which is kind of weird. I have my personal account and company account on that phone (personal is to activate the google stuff), so it eats up data twice as fast, yet it is almost twice as long battery life.
And to update a little bit from my post before, it seems I am getting better battery life now, after 4-5 days of flashing the new ROM, let's hope it is true....or I am just going to go hunt for a bigger battery
---------- Post added at 08:23 PM ---------- Previous post was at 08:18 PM ----------
rignfool said:
Actually there are only a couple phones that have a larger battery...
The galaxy note and the atrix are the ones that come to mind...
And the note has a larger screen and Samsung's rediculious samoled screen which eats battery like potato chips...
Sent from my HTC PH39100 using Tapatalk 2
Click to expand...
Click to collapse
Actually, the Samsung Galaxy Note is way bigger than either Atrix or Vivid, so with a bigger body, I would assume that a bigger battery is possible. But if you look at current phones, I rarely see batteries that are above, say, 1800mAh, let alone 2000mAh and above, stock of course.
ideaLduK said:
My solution was to get a larger battery (2100mAh, the largest one with stock format) and using juice defender to control my Data Connection. I am getting about 60% more using time on a normal usage whan before!
Click to expand...
Click to collapse
Could you share the details on the battery?
Andida batteies are easily found on Ebay, but beware of Chinese fakes!! I got mine from a seller in Canada, all good.
I get good battery life by turning off data while I'm working . 70% with 8hrs unplugged
Sent from my HTC PH39100 using XDA

Snapdragon Battery Life only got me ~12 hours

I just bought the note yesterday from a local Verizon store.
I really love it but my battery life is literally TERRIBLE. I've googled a bunch to try and find a solution but I haven't gotten a straight answer. I've heard to resync your google accounts, swipe data and reload everything, but nothing have seemed to be solid.
I am a pretty avid user of my phone and I decently know what I am doing. I am coming from a Razr Maxx x912 with CM10 snapshot M11.
So I charged up to 100% at 10:38 am this morning, went to the Cardinal Lions game. Wanted test the phone out and used pretty significantly. When I got home it was 6:00 pm and I was left with 26% battery. That is not okay.
I am using Google Now Launcher because I hate that you can't center the apps icon on their launcher.
I have location on/off when appropriate, wifi on when needed, no bluetooth, automatic brightness, close out active programs, etc. Nothing out of the ordinary that would suck up the battery.
My battery stats are reading with Android System at 25% use and Screen at 22%.
I've read people getting a total of 22-24+ hours with their Note 4. I'm not even getting about half that.
Did I get a bunk battery? Does anyone know of something I could be doing that is abnormal for battery use?
The phone does runs hot to the touch on it's back. I also get messages from advanced task manage that cloud or facebook has lagged and overdraws battery. I don't know of anything else I've done differently than any use of my other phones that would change my battery draw.
I'm willing to go back to the store and swap out this phone for another Note 4 because I do love the phone.
If anyone would have any ideas I'd appreciate it. Thanks!
I consider myself a moderate to heavy user (gmail, hotmail, facebook, linkedin, dropbox, whatsapp, skype all syncing), often reading news and diff articles throughout the day, light game use.
I only leave wifi on when i'm at home or somewhere where i connect to wifi, otherwise it's turned off.
I usually get from 7am - 11pm with 30% left. Screen on time is the killer - playing games i notice the battery drop quickly.
HuStLaZ said:
I consider myself a moderate to heavy user (gmail, hotmail, facebook, linkedin, dropbox, whatsapp, skype all syncing), often reading news and diff articles throughout the day, light game use.
I only leave wifi on when i'm at home or somewhere where i connect to wifi, otherwise it's turned off.
I usually get from 7am - 11pm with 30% left. Screen on time is the killer - playing games i notice the battery drop quickly.
Click to expand...
Click to collapse
I would say I am at the same level of use. Emails read and write, Reddit poops, typical facebook scrolling, instragram butts, news, text, Use bluetooth at the gym with wireless headphone, but no games or anything really consuming.
Do you see my situation as typical or atypical as in, is it obscure enough to go in and ask for a different Note 4 since because of the battery?
Jakib2 said:
I just bought the note yesterday from a local Verizon store.
I really love it but my battery life is literally TERRIBLE. I've googled a bunch to try and find a solution but I haven't gotten a straight answer. I've heard to resync your google accounts, swipe data and reload everything, but nothing have seemed to be solid.
I am a pretty avid user of my phone and I decently know what I am doing. I am coming from a Razr Maxx x912 with CM10 snapshot M11.
So I charged up to 100% at 10:38 am this morning, went to the Cardinal Lions game. Wanted test the phone out and used pretty significantly. When I got home it was 6:00 pm and I was left with 26% battery. That is not okay.
I am using Google Now Launcher because I hate that you can't center the apps icon on their launcher.
I have location on/off when appropriate, wifi on when needed, no bluetooth, automatic brightness, close out active programs, etc. Nothing out of the ordinary that would suck up the battery.
My battery stats are reading with Android System at 25% use and Screen at 22%.
I've read people getting a total of 22-24+ hours with their Note 4. I'm not even getting about half that.
Did I get a bunk battery? Does anyone know of something I could be doing that is abnormal for battery use?
The phone does runs hot to the touch on it's back. I also get messages from advanced task manage that cloud or facebook has lagged and overdraws battery. I don't know of anything else I've done differently than any use of my other phones that would change my battery draw.
I'm willing to go back to the store and swap out this phone for another Note 4 because I do love the phone.
If anyone would have any ideas I'd appreciate it. Thanks!
Click to expand...
Click to collapse
I assume that your phone would have been using more battery at a stadium with 50, 000 other cell phones its visinity. Your phone would be losing a lot of packets with so much traffic around it
SM-N910W8 on Rogers Canada
trichrome1 said:
I assume that your phone would have been using more battery at a stadium with 50, 000 other cell phones its visinity. Your phone would be losing a lot of packets with so much traffic around it
SM-N910W8 on Rogers Canada
Click to expand...
Click to collapse
that might be the case but as I was reading forum posts about the battery life on the way home from the stadium I could watch my battery % decrease. On a 20 minute car ride I went from around 33% to 30%.
Compared to other reactions to the battery life online, I don't doubt my battery is depleting abnormally for some reason whether it is in a stadium or not.
Jakib2 said:
I would say I am at the same level of use. Emails read and write, Reddit poops, typical facebook scrolling, instragram butts, news, text, Use bluetooth at the gym with wireless headphone, but no games or anything really consuming.
Do you see my situation as typical or atypical as in, is it obscure enough to go in and ask for a different Note 4 since because of the battery?
Click to expand...
Click to collapse
Yeah it seems to be draining a bit more than mine. I also listen to about 1-2 hrs music (or podcast listening), plus 1 hr using Runkeeper (that by itself only drains 3-4%).
Maybe give it a few days for the battery to settle in, then see what kind of battery life you're getting?
Are you using Lte, 3g or Edge?
Jakib2 said:
I just bought the note yesterday from a local Verizon store.
I really love it but my battery life is literally TERRIBLE. I've googled a bunch to try and find a solution but I haven't gotten a straight answer. I've heard to resync your google accounts, swipe data and reload everything, but nothing have seemed to be solid.
I am a pretty avid user of my phone and I decently know what I am doing. I am coming from a Razr Maxx x912 with CM10 snapshot M11.
So I charged up to 100% at 10:38 am this morning, went to the Cardinal Lions game. Wanted test the phone out and used pretty significantly. When I got home it was 6:00 pm and I was left with 26% battery. That is not okay.
I am using Google Now Launcher because I hate that you can't center the apps icon on their launcher.
I have location on/off when appropriate, wifi on when needed, no bluetooth, automatic brightness, close out active programs, etc. Nothing out of the ordinary that would suck up the battery.
My battery stats are reading with Android System at 25% use and Screen at 22%.
I've read people getting a total of 22-24+ hours with their Note 4. I'm not even getting about half that.
Did I get a bunk battery? Does anyone know of something I could be doing that is abnormal for battery use?
The phone does runs hot to the touch on it's back. I also get messages from advanced task manage that cloud or facebook has lagged and overdraws battery. I don't know of anything else I've done differently than any use of my other phones that would change my battery draw.
I'm willing to go back to the store and swap out this phone for another Note 4 because I do love the phone.
If anyone would have any ideas I'd appreciate it. Thanks!
Click to expand...
Click to collapse
In my case battery was really better after few cycle , after a little week
ShannonAUT said:
Are you using Lte, 3g or Edge?
Click to expand...
Click to collapse
LTE SM-N910V
On 4.4.4
Im moderate user with dropbox, google drive and 3 email accounts sync on. With power savig mode on I go from 7am to 11pm on 60 - 65% battery capacity. I keep screen on manual settings (automatic is to low for my likings) and phone is not rooted so I can't disable some applications running in background (same of them i.e tmobile my account I can close manualy in application manager). Install battery monitor to check if your phone ever go into "deep sleep" or if there is offensive app what keep it "awake" all the time.
Sent from my SM-N910T using XDA Free mobile app
So you're complaining because you left home used your phone all day to make it back home again and still have bayyery? I'm confused.
Sent from my SM-N910T using XDA Free mobile app
Jakib2 said:
I also get messages from advanced task manage...
Click to expand...
Click to collapse
Stop using task killer type apps.
zerojay said:
Stop using task killer type apps.
Click to expand...
Click to collapse
Why do you say this? I've never heard to not use them before, so if something else is more efficient or less burdensome that would be great! My task killer has given me the message of apps causing CPU lag and overdraining the battery wit the option to "BOOST". Not exactly sure what this means.. I assume it means boost (kill) completely. Is this normal?
I'm complaining because I've heard so many people loving the battery life on their Note 4, claiming to have a battery life of 22+ hours while I am barely getting 13. I want to ensure that I didn't get a bunk battery and that I might need to swap it out at the store. I love the phone but it bothers me to watch the battery % deplete before my eyes as I use it.
That being said, I watched 20 minutes of the science of interstellar last night after draining the battery completely and then charging it back up to 100% and at the end of the 20 minutes 92%. 8% loss over 20 minutes of video should not happen. Have anyone experienced something similar?
Since Android 2.3, task killer apps will significantly reduce your battery life. When an app is sitting open in the background it is just stored in RAM and is not using any power. When a task killer tries to kill it, it removes it from memory and then the system loads it up again. That causes power drain.
---------- Post added at 02:28 PM ---------- Previous post was at 02:24 PM ----------
Jakib2 said:
That being said, I watched 20 minutes of the science of interstellar last night after draining the battery completely and then charging it back up to 100% and at the end of the 20 minutes 92%. 8% loss over 20 minutes of video should not happen. Have anyone experienced something similar?
Click to expand...
Click to collapse
Was that a streaming video or locally saved? If you're streaming over LTE I wouldn't consider that too unusual.
You also haven't given any screen on times, which are very important. I can let my phone sit idle and get ~15 days out of it if I don't touch it, but I could also use it for 7 hours of watching a movie with the screen on and kill it.
raptir said:
Since Android 2.3, task killer apps will significantly reduce your battery life. When an app is sitting open in the background it is just stored in RAM and is not using any power. When a task killer tries to kill it, it removes it from memory and then the system loads it up again. That causes power drain.
---------- Post added at 02:28 PM ---------- Previous post was at 02:24 PM ----------
Was that a streaming video or locally saved? If you're streaming over LTE I wouldn't consider that too unusual.
You also haven't given any screen on times, which are very important. I can let my phone sit idle and get ~15 days out of it if I don't touch it, but I could also use it for 7 hours of watching a movie with the screen on and kill it.
Click to expand...
Click to collapse
I was streaming it over wifi via the youtube app, so it was nonlocal.
My stats show Android system at 27%, and Screen 12%.
I charged to 100% this morning and am at 93% now after screen time of 13m 15s.
That's actually really bad if it was over WiFi.. I had this test done (and throughout that post), but the one linked is at 95% of 41 minutes OST (1st post on that page); I also have three emails running (Push - two hotmails, one exchange for work); My test was basically running a Crunchyroll video for the whole time.. I was able to get a little over 8 hours OST at the end of the test; However, if you left your phone on for a few hours, then that's pretty good.. remember the standby mode does kill battery too.. I use a 'deepsleep' mode when my screen is off (80%+ deepsleep from CPU Spy);
http://forum.xda-developers.com/note-4/general/note-4-battery-thread-t2893547/page66
Jakib2 said:
I was streaming it over wifi via the youtube app, so it was nonlocal.
My stats show Android system at 27%, and Screen 12%.
I charged to 100% this morning and am at 93% now after screen time of 13m 15s.
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Click to collapse
CPU Spy for 48 seconds.. I'll post one with a bit longer time next.. but you get the point.. try to get deepsleep when your screen turns off.. (for example, I turn off all the radios (except cellular and bluetooth) when I turn off the screen.. The app I use for this is DS Battery... I had the 8 hours OST test done while using DU Battery, DS Battery, and Memory Manager Full all at the same time.. so now only down to DS Battery left.. from what others say, the apps that clear memory are bad because it reloads them back into services/memory and thus gets more battery drain.. just like getting out of a car door (while you are driving to the store) every minute to check on something, then getting back in.. better to just sit and go the whole trip and get out at the end (which deepsleep mode can do).. the app can run, but it can't do anything because the wifi/mobile data radio is off.. (just like if there was no 'car' in the example);
5 minute run.. dropped a lot but still over 95% of off screen time is 300mhz or deepsleep..
michsu said:
5 minute run.. dropped a lot but still over 95% of off screen time is 300mhz or deepsleep..
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Great. Thanks I downloaded CPU spy and DU Battery. I'll look into DS Battery.
Other than turning off radios when in DS, do you have any other suggestions?
I was using Google Now Launcher, which I think ran the Okay Google option all the time which sucked some life. I switched to Nova and relinked my google accounts and it seems to be running better.
Ill charge it full and then run it dry and report back with my results.
Jakib2 said:
Great. Thanks I downloaded CPU spy and DU Battery. I'll look into DS Battery.
Other than turning off radios when in DS, do you have any other suggestions?
I was using Google Now Launcher, which I think ran the Okay Google option all the time which sucked some life. I switched to Nova and relinked my google accounts and it seems to be running better.
Ill charge it full and then run it dry and report back with my results.
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Turn off Google Now if you don't use it
Turn off Location/GPS or make sure it runs only in power saving mode
Turn off location history in Google settings
Use auto-brightness
Disable Pen detection in the S Pen settings
Disable S voice responding to double-tap of the home button (in S Voice settings)
Don't use the Google search widget which listens for the "OK Google" command
TeslaUnread for Nova Launcher prime drains some battery too, don't use this unless you really like it
Use power saving mode when going out for a big day rather than relying on it as the battery is almost drained
Disable any apps you don't care about i.e. carrier bloat, Google apps like Play Movies, Books, Newstand and Samsung apps like the TV/remote apps, video player if you're using an alternative, cloud syncing processes and print/spool ones as well. This may not make a big difference but it's nice to get them out of sight anyway.
And most importantly, as mentioned previously, don't kill your apps. The only time I kill an app is for big 3D games as I like them to go away rather than sitting in RAM. I also have a little routine, when I do a reboot and full charge, I run all of my common apps like Hangouts, Messages, Phone, Chrome and my weather app so that they are sitting in RAM already while my phone's at 100% rather than draining my battery during my commute to work in the morning. I don't really have any particular reason to do this as my batter never gets anywhere near 0% by the end of the day, I'm just OCD with seeing it drain too much before I even get to work.
I don't think most of the suggestions above are too extreme. Unlike uninstalling commons apps such as Facebook/FB Messenger, or disabling your data/wifi/bluetooth or even turning sync off. To me this is taking away from the purpose of a smartphone, but each to their own.

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