12-11-2011 04:46 PM
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  1. Slingbox's Avatar
    Sling, I wish mine would get half of that. I had Sprint re-flash it and it seemed to help but still not lasting as long as my evo was. Just look at my discharge rate compared to what you guys are getting. The 2nd screen shot I got it down to 35% and I had a 2 hour meeting so I threw it on the charger real quick. I know cell coverage plays a big part in it but my android os is always high. I'm not giving up on this phone yet and I don't think Sprint is going to replace it as I didn't buy it from them.

    Sent from my SPH-D710 using Tapatalk
    grrr not good.
    Who did you purchase it from?
    11-15-2011 11:32 PM
  2. Stearmandriver's Avatar


    Those gaps in service are the device in airplane mode, during short flights.

    I know the screen-on time looks limited, but consider that's over the course of 18.5 hours. Also, notice that the phone was awake for a lot more of the time than the screen was on.

    So that's 18.5 hours, with over 40% battery left, with moderate usage. Sure, without those spans in airplane mode, I'd have lower battery. With more screen-on time, it'd be lower. But this is solid moderate usage when the phone is on - texts, calls, browsing... and I've got almost half the battery left after over 18.5 hours.

    Yeah.. that's a TERRIBLE battery, DGuidry.
    11-16-2011 01:59 AM
  3. eric3316's Avatar
    Click to view quoted image


    Those gaps in service are the device in airplane mode, during short flights.

    I know the screen-on time looks limited, but consider that's over the course of 18.5 hours. Also, notice that the phone was awake for a lot more of the time than the screen was on.

    So that's 18.5 hours, with over 40% battery left, with moderate usage. Sure, without those spans in airplane mode, I'd have lower battery. With more screen-on time, it'd be lower. But this is solid moderate usage when the phone is on - texts, calls, browsing... and I've got almost half the battery left after over 18.5 hours.

    Yeah.. that's a TERRIBLE battery, DGuidry.
    Based on that screen shot I would not say that is heavy moderate usage though......Looks more light to me but would need to see the actual on screen time.......

    Anyway, whether you use the phone a lot or a little, battery life on this phone when compared to other Android phones with the same usage is definitely the best there is...
    11-16-2011 06:03 AM
  4. gottria's Avatar
    grrr not good.
    Who did you purchase it from?
    Picked it from a coworkers buddy who upgraded to the iPhone 4s. I got it fully charged this AM and will not charge it till it's really low.

    Is there any way to reset that graph? Or save it and start another.
    11-16-2011 08:46 AM
  5. Cory Streater's Avatar
    This forum needs ignore option if their not going to take out trash
    Here you go.
    eric3316 likes this.
    11-16-2011 08:50 AM
  6. Slingbox's Avatar
    Thank you!
    11-16-2011 09:26 AM
  7. JayWill's Avatar
    Picked it from a coworkers buddy who upgraded to the iPhone 4s. I got it fully charged this AM and will not charge it till it's really low.

    Is there any way to reset that graph? Or save it and start another.
    I've never had the need or desire to reset my system battery stats and graph, so I don't know if there is an app or function that would do it (I would imagine there is), but I know that fully charging your phone resets the graph.

    Regarding your battery drain, I don't know if System Panel is basically telling you the same thing, but you may want to try dropping the 2 bucks on BetterBatteryStats (all one word on the Android market). If you're a member of XDA, you can also download and install it for free.

    You'll notice on the shots I've attached that my suspend and events/0 are very low after 3 hours off the charger. 12 and 11 seconds respectively. You can also see from my battery stats that my Android OS is very low. This could give you something to compare it to if you decide to try BetterBatteryStats. BetterBatteryStats will also allow you to easily identify Apps that are wakelocking your phone, but it doesn't seem like wakelocks are your problem from looking at your most recent battery chart.

    A couple of other things that have possibly been attributed to high suspend and events/0 activity has been an external SD card, Google syncs (mail and calendar specifically), and certain exchange email setups. I would consider how you may interact with any of these variables (at minimum I'm sure you sync Google) and see if removing any of them from your user environment (one at a time) improves your situation.
    gottria likes this.
    11-16-2011 12:34 PM
  8. gottria's Avatar
    Got BBS installed but not sure if it needs to monitor it for a day or so. But here is what it says now. Took my battery off at 7:30am and it's now 2:07. WiFi was turnedbon at noon.

    I have been in the shop all day so the phone base been in the same area for most of the day. I'm a field tech I'm usually out and about.

    Sent from my SPH-D710 using Tapatalk
    11-16-2011 04:09 PM
  9. JayWill's Avatar
    Okay, I'm at 7 hours off the charger right now (1 more hour than you in your screenshot) and my suspend and events/0 are both at 35 seconds. Yours are at 6 minutes, far far far more system use than mine with an hour less off the charger. Something is cranking those two processes for sure ... the hard part is figuring out what.

    What is your screen on time in the above screenshot? This is important in getting an idea of where Android OS should be. For example, I have 2 hours of screen on time today, my display is 57% of use and AOS is 10%.
    11-16-2011 04:47 PM
  10. gottria's Avatar
    Sorry forgot to post that one.

    Sent from my SPH-D710 using Tapatalk
    11-16-2011 05:28 PM
  11. JayWill's Avatar
    Sorry forgot to post that one.

    Sent from my SPH-D710 using Tapatalk
    See this does play a part in your high AOS (although I still believe something is causing elevated system processes in your case). My screen on time is 29% of my time off the charger today. Yours is 8%. The more you have the screen on, the higher the display % goes (duh..yeah I'm Captain Obvious) which conversely reduces your AOS as a total percentage of your battery use.

    Sent from my E4GT via Tapatalk
    11-16-2011 05:41 PM
  12. JayWill's Avatar
    By the way, this is probably the best post I've read about Android OS, what it is, how to measure it, how to understand if you have a problem and some suggestions (albeit limited because there are so many variables involved) on what you can do about it.

    [REF][Rewrite 26/10] What the Android OS usage is and what it's not - xda-developers
    11-16-2011 05:59 PM
  13. gottria's Avatar
    By the way, this is probably the best post I've read about Android OS, what it is, how to measure it, how to understand if you have a problem and some suggestions (albeit limited because there are so many variables involved) on what you can do about it.

    [REF][Rewrite 26/10] What the Android OS usage is and what it's not - xda-developers
    Good link, thanks. I got my wakelocks.csv file from my phone, just having a hard time trying to get it formatted correctly in excel, and I'm on a Mac. Once that is formatted correctly I hope to have more info on why my phone wont sleep.
    11-16-2011 06:49 PM
  14. DaveInFL's Avatar
    I am still having battery issues. My Android OS is up to 80% at times
    11-16-2011 06:55 PM
  15. JayWill's Avatar
    Good link, thanks. I got my wakelocks.csv file from my phone, just having a hard time trying to get it formatted correctly in excel, and I'm on a Mac. Once that is formatted correctly I hope to have more info on why my phone wont sleep.
    Right on. Also make sure you download CPU Spy to understand how much time your CPU is spending at the various frequency levels.
    11-16-2011 07:13 PM
  16. kd0axs's Avatar
    Just thought I'd throw another one in here for good measure. Going on 10 hours and as you can see this was with some pretty darn heavy usage, plus it wasn't fully charged to begin with. Wife had surgery so I was sitting in a hospital room all day with nothing to keep me entertained but my phone.

    Sent from my SPH-D710 using Tapatalk
    11-16-2011 07:39 PM
  17. DaveInFL's Avatar
    Good link, thanks. I got my wakelocks.csv file from my phone, just having a hard time trying to get it formatted correctly in excel, and I'm on a Mac. Once that is formatted correctly I hope to have more info on why my phone wont sleep.
    How do you determine if your phone is sleeping or not?
    11-16-2011 08:26 PM
  18. gottria's Avatar
    OK, I give up. I have no idea how to read this wakelocks file. Here, you guys take a look at and let me know. Other than that I'm going pack to Sprint and see if they can exchange it.
    11-16-2011 09:47 PM
  19. JayWill's Avatar
    How do you determine if your phone is sleeping or not?
    Download CPU Spy from the market. It'll show your frequency usage, including Sleep and Deep Sleep.
    11-16-2011 11:36 PM
  20. JayWill's Avatar
    As promised on Sunday ...

    I finally had a day where I could use my phone with enough screen on time to show a valid comparison. Yes I have to push harder than my normal use pattern to do this heh.

    Notes:

    - WiFi off all day (3G only)
    - GPS on all day
    - Bluetooth on all day
    - 1 hour of playing an audiobook via bluetooth
    - about 30 mins of talk time with many texts and gmails throughout the day
    11-16-2011 11:39 PM
  21. DirkBelig's Avatar
    Download CPU Spy from the market. It'll show your frequency usage, including Sleep and Deep Sleep.
    I did this and it's showing:

    Time In State

    1200 MHz - 2%
    1000 MHz - 3%
    800 MHz - 4%
    500 MHz - 3%
    200 MHz - 26%
    Deep Sleep - 59%

    What does this mean?
    11-16-2011 11:46 PM
  22. JayWill's Avatar
    What does this mean?
    Well, I guess I'm stating the obvious here, but it means your phone is spending more time in deep sleep than anywhere else. But if I remember right, you are one of the folks experiencing poor battery performance and high Android OS %. Check the thread I linked above. There were some arguments made that the extra power consumed to enter and exit the deep sleep state could be part of the problem. But I'm not so sure about that. Sleep is usually my highest %, followed by deep sleep then smattered across the other frequencies like yours.

    If anything Dirk, this is telling you that you don't have a wakelock problem.
    11-16-2011 11:55 PM
  23. gottria's Avatar
    Charged up the phone to 100% before going to bed and woke up this morning to 73% battery left and a nice circle with a line through it saying "searching for service".
    11-17-2011 08:43 AM
  24. JayWill's Avatar
    Charged up the phone to 100% before going to bed and woke up this morning to 73% battery left and a nice circle with a line through it saying "searching for service".
    Yeah that would be LOS. Bummer. Take it in and see if Sprint will exchange it. Good luck.
    11-17-2011 09:49 AM
  25. gottria's Avatar
    Yeah that would be LOS. Bummer. Take it in and see if Sprint will exchange it. Good luck.
    Sprint tech swapped batteries to see if that helps with the drain. And also has a phone on order should be here in a day or 2.
    11-17-2011 01:02 PM
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