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Android 2.2 FroYo and battery life

Discussion in 'Android Devices' started by muzland, May 26, 2010.

  1. muzland

    muzland Lurker
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    Hi All,

    I wonder if anyone who has upgraded to 2.2 can comment on relative battery life to 2.1 for instance.

    I have a HTC desire and battery life is OK. I would like to upgrade to 2.2 when available but I am worried that the extra performance is at the expense of battery life.

    Regards
    Muzland
     

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  2. 84guy

    84guy Well-Known Member
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    faster loading means less cpu time means less power. Google states JIT in 2.2 uses less cpu and battery

    Android Developers Blog: Dalvik JIT

     
  3. mmw686661

    mmw686661 Lurker
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    RETIRED
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    Do anyone know if the droid by motorola will be getting the 2.2 update? Any idea when?
     
  4. Aaronneyer

    Aaronneyer Well-Known Member
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    Probably in a few months but they haven't announced anything yet.
     
  5. tinmice

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    I've just upgraded to 2.2 on Desire, I used the juicedefender app to prolong battery life slightly and with normal use would last 1 - 1.5 days. Since upgrade the longest it has lasted it 7 hours. Something is seriously wrong, even on standby with nothing on overnight it still drained at an almost maximum rate and was dead by 7 am. Not happy.
     
  6. frankingeneral

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    Yeah, to follow up on tinmice's, post, I have a Moto Droid, and I manually updated to 2.2 on Tuesday night. I barely got 9 hours out of it yesterday, and I'm a light user, it sits on my desk most of the day, except when I play the occasional game in the men's room. Today it looks like I'm going to get about the same. I used to get 12-15 hours out of it pre-2.2 update.
     
  7. Adlerson

    Adlerson Newbie
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    I don't notice any difference in battery life from 2.1 to 2.2 myself.
     
  8. chrisjz

    chrisjz Well-Known Member
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    i had a bunch of widgets on my homescreen, and my display was using about 78% of my battery, and my battery was dead after about 6 hours even on standby. I removed most of my widgets and it seems to have worked. my battery has been unplugged for over 12 hours, and my battery isn't even at half. Not 100% sure if this is what helped it. Give it a try and let me know. BTW, i am using the motorola droid with 2.2
     
  9. mkrmec

    mkrmec Well-Known Member
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    do people even read before they start making up stuff?

    worried about the battery life because of extra performance.. lol
     
  10. dajumper

    dajumper Lurker
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    do a hard reset maybe problems solved
     
  11. kevpan815

    kevpan815 Well-Known Member
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    No problems here yet! I am still waiting for the Second OTA Update for my Motorola Droid, however. I Force Installed the Origional OTA Update from the Google Website Leak earlier this week. Just fyi.
     
  12. Austin314StL

    Austin314StL Newbie
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    I changed to a fresh conditioned battery and went to the store. I looked at my phone and it told me of the DL. I started the download and shopped for 15min or so, took another 5min for phone to reboot.

    First thing I noticed was my battery was at 75%.

    Went home and had the phone idling for another 1hr. I looked at the phone again and it was down to 25%. So yes I can tell the difference. Not cool
     
  13. azz

    azz Well-Known Member
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    Like previous post writer said, wipe phone. then install again. Probe something or some app causing it.
     
  14. probinson

    probinson Well-Known Member
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    I've got an EVO on 2.2 and I went the hard reset route (used MyBackup Pro to make it less painful). I fully charged the battery about 2 hours ago and let the phone just idle since then. The battery is now at 98%. I'm pretty happy with that.
     
  15. StuartTheFish

    StuartTheFish Android Enthusiast
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    It's near enough doubled my HTC desire's battery life. It'd just about last a full day before, but since the 2.2 update I've actually got two days out of it a couple of times.
     
  16. chiefvelo

    chiefvelo Member
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    I'm seeing slightly improved batter life with 2.2. Moto Droid.
     
  17. mohanherle

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    Thanks for the useful information.
     
  18. 4DAIVI PAI2K5

    4DAIVI PAI2K5 Member
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    The Battery life on my Droid went down the crapper after I updated. Not a happy camper
     
  19. noc

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    Wow if this is true, then maybe some people really are just doing something wrong. Did you wipe your phone clean before you did the install?
     
  20. jellyhead

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    I haven't notice the battery life issue but I did notice that there are more active apps than before. I use an app manager to shut off unnecessary apps so maybe that's why I haven't had any problems.

    I use System Panel Lite to manage running apps.
     
  21. cgh1

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    I upgraded my Moto Driod (original) recently and now I am lucky to get 6-8 hours of life outta the phone where I used to get 1.5 days.

    I'm not a heavy app user, although I do have several installed that I use on occasion. Weather Bug is the only app that runs dynamically, so most of the time the phone is idle.

    Not too happy with what I'm getting.

    If I blow the phone away to do a hard reset now, will I get the upgrade message again? My wife's phone didn't get the upgrade message until a week after I'd gotten mine & upgraded.

    Cheers,
    C
     
  22. djembeman

    djembeman Well-Known Member
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    A factory reset will not revert you to an older OS. There are several posts in. These forums on how to perform a reset. It just wipes data on the phones internal memory/storage. These are the directions I followed. Before executing, in order for your apps to download for you again after you re-activate and set up Google again, go to Privacy settings and make the two boxes are checked: Back up my Data and automatically restore.

    How to hard reset the Motorola DROID - Know Your Cell
     
  23. kalzekdor

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    I've recently upgraded my Droid to 2.2, and have noticed a significant drop in battery life. Apparently I'm not the only one. Can barely get 6 hours of moderate use. Not cool.
     
  24. sakethcr

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    I have upgraded my HTC Desire from 2.1 to 2.2. I found the battery life to be reduced by at least 20%.
    Having charged my desire overnight, normally my battery used to go to amber/red at around 9-10 PM.
    But from the time I upgraded to 2.2. The battery started to go to amber/red by 6-7 in the evening.
    My usage pattern has not changed and I still use the same apps I used to use when I was on 2.1. It has been 5 days since I upgraded and I have noticed this reduction in battery life every day.
     
  25. Unclebill

    Unclebill Member
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    I haven't noticed any change in battery life after my Droid went from 2.1 to 2.2.
     
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