10-21-2011 09:33 AM
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  1. foosball's Avatar
    EDIT: BATTERY LIFE IS BACK TO NORMAL as of 10/3/11. Since I tried multiple fixes I will list everything done to the phone without any understanding if any of these resolved the problem or not, individually or collectively:

    * Located every app listed in the Settings> Applications> Background Tasks> Advanced. Toggled on/off of all background tasks in each app in this list. Only left on my weather and WPCentral apps.
    *Turned off all setting in the HTC app "Attentive Phone". Settings> System> Attentive Phone
    *Recharged the battery until it was 100% charged
    *Rebooted the phone

    One of the biggest strengths of WP7 is battery life. Something is either wrong with my phone or something is wrong with Mango because my battery life has been killed.

    Pre-Mango always turned off all internet connections and used airplane mode at night. This would effectively run close to 0-1% battery until the morning.

    Post-Mango all internet connections turned off and airplane mode running and it eats about 40% of my battery.

    This likely hs to do with background tasks. Anybody know what the **** is going on? Jimski any ideas?
    Last edited by WPDiddy; 10-03-2011 at 08:24 AM.
    Dave Blake likes this.
    09-30-2011 08:57 AM
  2. wrong's Avatar
    haven't noticed any change whatsoever
    09-30-2011 08:59 AM
  3. palandri's Avatar
    Battery life seems the same to me.

    I don't understand why you aren't charging your phone overnight instead of putting it in airplane mode? Was it just for testing purposes?
    09-30-2011 09:01 AM
  4. foosball's Avatar
    I guess I should narrow this question down. Has anyone who uses airplane mode noticed that it kills your battery instead of helping it like it is supposed to?

    I dunno, just seems to me that if you can save about 40% of your battery each night that's a good idea.
    09-30-2011 09:09 AM
  5. Michael-Dallas's Avatar
    I dunno, just seems to me that if you can save about 40% of your battery each night that's a good idea.
    Why is that a good idea?

    Battery life depends on the amount of charge cycles. If you wait until it reaches 25% vs 80% (i.e. nightly), then you're increasing the number of charge cycles. How old is your phone and battery? It could simply be that your battery is starting to age w/ the charge cycles.

    Here's more info on charge cycles from "the other company": Apple Portables: Determining Battery Cycle Count

    Michael.
    09-30-2011 09:24 AM
  6. dawindbag's Avatar
    Maybe you should use the Battery Saver function instead of airplane mode. It was designed the conserve battery. Airplane mode wasn't.
    09-30-2011 09:39 AM
  7. foosball's Avatar
    That was a good article. The best quote was:

    "A charge cycle means using all of the battery"

    So 2 50% charges= 1 cycle.

    In my case I went from 1 cycle every 24 hours to 1 cycle every 12 hours with Mango.
    Last edited by WPDiddy; 09-30-2011 at 09:48 AM.
    09-30-2011 09:41 AM
  8. foosball's Avatar
    Maybe you should use the Battery Saver function instead of airplane mode. It was designed the conserve battery. Airplane mode wasn't.
    Yeah I should have mentioned that I also used Battery Saver one night and alternated with it off one night. No change.
    09-30-2011 09:44 AM
  9. palandri's Avatar
    Maybe an application is causing it. Just a thought.
    09-30-2011 10:08 AM
  10. foosball's Avatar
    Maybe an application is causing it. Just a thought.

    That's my thought as well. How do you go about finding memory/power leaks?
    09-30-2011 10:17 AM
  11. dakranii's Avatar
    Maybe to test if it's a program running, before bed shut your phone off to clear everything out and then turn it back on, let it go to standby and then let it run that way over night. A freshly booted phone wouldn't be running anything it shouldn't be.
    09-30-2011 10:25 AM
  12. Dagolara's Avatar
    That's my thought as well. How do you go about finding memory/power leaks?
    Also check in settings->applications->background tasks to see what you have running all the time.
    09-30-2011 11:34 AM
  13. foosball's Avatar
    Ok, I turned off most background tasks except for Wpcentral and Accuweather. Well see how that goes. Still strange though since I can't be the only one running these apps.
    09-30-2011 11:44 AM
  14. Dave Blake's Avatar
    How's your cell reception WPDiddy? I have killed half a battery today I'm blaming it on my cell radio. I'm getting horrible coverage post update. I think Sprint fubared the CDMA radio on my Arrive.
    09-30-2011 11:54 AM
  15. foosball's Avatar
    How's your cell reception WPDiddy? I have killed half a battery today I'm blaming it on my cell radio. I'm getting horrible coverage post update. I think Sprint fubared the CDMA radio on my Arrive.
    Seems perfectly fine since Mango. Signal strength is normal. Are you bouncing around with signal strength more than normal? My 3G connection is stable as normal too.
    09-30-2011 12:02 PM
  16. Dave Blake's Avatar
    Seems perfectly fine since Mango. Signal strength is normal. Are you bouncing around with signal strength more than normal? My 3G connection is stable as normal too.
    I've been bouncing in and out 3g all day while driving around the DFW area which is odd. I am working on a new job site today and the reception is bad here I had to turn off roaming. What's weared is when I turned off roaming my signal bars went up on Sprint only which makes no sense at all. I'll keep testing and let ya know what I find.
    09-30-2011 12:24 PM
  17. foosball's Avatar
    Maybe give Sprint a call. They have been informative when I called about reception issues and can tell when a tower is down in your area or run testing for your phone.
    09-30-2011 12:49 PM
  18. pdawg17's Avatar
    I've been bouncing in and out 3g all day while driving around the DFW area which is odd. I am working on a new job site today and the reception is bad here I had to turn off roaming. What's weared is when I turned off roaming my signal bars went up on Sprint only which makes no sense at all. I'll keep testing and let ya know what I find.
    Hmmm...I always assume a radio update is a good thing but I'll start paying attention to my Arrive as well...I can't say battery life is a lot worse since the update but I can DEFINITELY say it is not better...
    09-30-2011 03:09 PM
  19. LCARS's Avatar
    Very odd. My battery life is actually much better now that I am using battery saver. I charge it every night. Pre-mango, I could go 2/3 of a day with heavy music listening and I'd have to charge it at work. After mango, I can make it through the whole day.
    09-30-2011 05:44 PM
  20. Jazmac's Avatar
    You guys are scaring me with talk of bad battery life post Mango. You too Big D5? I have the Arrive too. Now if you don't already know, Sprint is doing a lot of stuff with their towers nationwide. Facebook/Sprint users are plenty upset at data speeds, slow connections, dropped calls and slow delivery of text messages.

    If the signal is throttling where you are, its going to destroy your battery. So far I'm good in Vegas with my signal and battery. There might be some issues with Mango and I suspect their are, but I'm aware Sprint's network is garbage right now.
    09-30-2011 06:00 PM
  21. jfa1's Avatar
    Maybe to test if it's a program running, before bed shut your phone off to clear everything out and then turn it back on, let it go to standby and then let it run that way over night. A freshly booted phone wouldn't be running anything it shouldn't be.
    or just do a long press on the back button any open apps will show up in a card like webos environment In any event I haveny noticed battery life being bad or worse than before. But I normally charge my device overnight from habit (since Treo 600)
    09-30-2011 06:01 PM
  22. dirtbikr's Avatar
    My battery went wonky on the RTM leaked build and I figured I would investigate. I charged it all the way to full and used it heavily all day. I made it to about 5PM before it said battery is low, plug it in or risk losing your data. So I kept playing tentacles... and playing... and playing... and playing. It didn't die completely till 8:30. It kept popping up the "slide screen down to turn off" prompt but I kept throwing it away. I then let it charge all the way up to full and I now have no reportable problems with my battery anymore. So, maybe your meter is just off? :)
    09-30-2011 06:03 PM
  23. thed's Avatar
    Just to clarify, background tasks are only allowed to run for a maximum of 25 seconds every half hour for each app. They don't constantly run, so I doubt that would cause such a big difference in battery life. I think it has to be something else.

    Sent from my HTC Trophy using Board Express
    foosball likes this.
    09-30-2011 06:04 PM
  24. Airanp's Avatar
    One of the biggest strengths of WP7 is battery life. Something is either wrong with my phone or something is wrong with Mango because my battery life has been killed.

    Pre-Mango always turned off all internet connections and used airplane mode at night. This would effectively run close to 0-1% battery until the morning.

    Post-Mango all internet connections turned off and airplane mode running and it eats about 40% of my battery.

    This likely hs to do with background tasks. Anybody know what the **** is going on? Jimskii any ideas?
    Check out your settings options. I noticed some of mine had changed after the update. I had to manually reset some. But my battery life seems to be the same if not a little better.
    09-30-2011 06:15 PM
  25. DrSaiko's Avatar
    But my battery life seems to be the same if not a little better.
    Same here.
    09-30-2011 07:05 PM
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