Battery life?

Discussion in 'Samsung Galaxy Nexus' started by MattWheelerGA, Feb 9, 2012.

  1. MattWheelerGA

    MattWheelerGA New Member

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    I've been thinking about getting rid of my Bionic for the GNex, but battery life is a concern of mine. How is the battery life on the GNex? Stock? Custom ROMs/kernels?

    Sent from my DROID BIONIC using DroidForums
     
  2. Tim K

    Tim K New Member

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    You will probably get a lot of stories about how awful it is. But don't worry about it. There are 2 critical things to remember.

    1. This thing has a HUGE screen. Big screens use a lot of juice....especially when you can't keep from looking at it. Keep the brightness dialed down for best results. I wouldn't go any higher than 30% and I keep it at 10% which is fine except in direct sunlight.

    2. 4G chews up battery. Don't let anyone tell you any different. Its a fact. Until phones start coming with hybrid 3G/4G chips, the bottom line is 4G uses more power even though its supposed to be more efficient. Keep in mind these are still essentially 1st generation. If you don't need the speed and value battery life, consider using 3G. Also, ALWAYS use WIFI whenever possible. Wifi uses far less juice.

    Finally, there are some bugs that are causing drain for a lot of users. Personally, I have found that turning off unnecessary sync services has addressed most of those problems. Google+, photos, and separately google backup were problems for me. I only sync gmail, contacts, calendar and browser. Things like twitter and facebook I have no need to constantly see updates (well, I quit facebook actually) so they are not set to sync.


    Personally, with those tweaks I typically unplug the phone around 8am at 100% (well 99% technically most days).
    I use about 2hrs of screen on time (which is a major factor in battery life)
    Maybe 20 minutes of voice calls (don't forget phone calls use lots of juice)
    80-90% of the day on wifi

    at 11pm when I plug back in I am usually still over 30% on the battery. More if I don't stream anything on Sirius or Google music.

    I am rooted, but stock kernel, stock rom.
     
  3. turdbogls

    turdbogls Active Member

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    battery life isn't great. i would suspect about 2 hrs screen on time with the stock ROM and 50/50 4g and wifi.

    with that said, i have tweaked my settings to give pretty good results. i have not had a chance yet for a full NORMAL day use with my nexus.

    the other day, i went 10.5 hours of full 4g, with 2.75 hours screen on time, a little game playing, maybe 15 pictures, 10 minute phone call, constant syncing of google services, maybe 20 text messages and probably 20-30 minutes of tapatalk forum browsing. i also downloaded a 700mb file over wifi. so that can give you an idea of what to expect. that was on code name android, with some voltage/frequency tweaks. i have found that cpu spy is a great tool. it tells me if my phone goes into deep sleep or not. last night, i was at 34% battery after 5 hours off the charger (light use) and i used cpu spy to see that i was sitting at 700 mhz (have 700 min 1200 max with conservative gov) for the majority of the time and i was not going into deep sleep. a kernal change took care of that and i am back to seeing some pretty good battery life.
     
  4. manilaboy1vic

    manilaboy1vic Member

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    i have tons of screensohts on my stock GN that proves im getting better battery than my tbolt.. non issue for me :)

    here is one for example:

    View attachment 47176
     
  5. dezymond

    dezymond Tech Support Mod
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    Stock battery life wasn't too great. I've since used a ROM and get great battery life.
     
  6. xeene

    xeene Gold Member

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    if you keep screen off, it'll last you 24-36 hours. with screen constantly on, don't expect more then 4-5 hours.
     
  7. wbernardez

    wbernardez New Member

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    I have a stock gnex and extended battery. It lasts me about 5 hrs, i have a ton of widgets and net use. So for my usage it works for me

    Sent from my Galaxy Nexus using DroidForums
     
  8. sloppy

    sloppy Member

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    Gnex and a seidio battery will get you 18hrs of heavy usage. With the 3800 battery it makes the gnex the same thickness as a tbolt or a bionic. Everyone has plenty to say about how ugly it is but most if not all of those people don't have one. It is no where near as bad as the picks and I charge my phone every other day. Right now I'm at 14hrs off charger with 68% left. I've seen alot of people getting 11 or 12 hours out of there phone without much use. Do yourself a favor. Get a gnex, a 3800 battery, root it and actually use your phone and enjoy.

    Sent from my Galaxy Nexus using Tapatalk
     
  9. syndicate0017

    syndicate0017 Silver Member

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    Lol. Did you even use your phone?...

    Sent from my Galaxy Nexus using Tapatalk
     
  10. dezymond

    dezymond Tech Support Mod
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    That's alot of phone idle time. I'm surprised your Android OS % is that low as well. Guess you're not affected too much by the bug.
     
  11. sloppy

    sloppy Member

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    This is my seidio 3800 battery with moderate usage. Heavy usage she'll go for 18hrs. I'm a little fatter than stock but I get to USE my phone.
    Sent from my Galaxy Nexus using Tapatalk
     
  12. Shad0w0fDeth

    Shad0w0fDeth Member

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    Im not sure if my phone is defective but no matter what rom I load, undervolt, disable data, underclock, screen at lowest brightness, I get horrible battery life. My seidio battery lasts as long as the samsung extended.

    Guess people are right, it's just the big screen. I use the phone about an hour of screen time, Google music for an hour or two, by the time I get home, my phone is dying. Ooh well. I've also looked for wake locks and my cpu speeds.

    Also people that post big uptimes usually have lots of idling or on wifi.

    Sent from my Galaxy Nexus using Tapatalk
     
    #12 Shad0w0fDeth, Feb 10, 2012
    Last edited: Feb 10, 2012
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