Is this normal? (short battery life)

Discussion in 'iPhone Tips, Help and Troubleshooting' started by Maclver, Aug 20, 2009.

  1. Maclver macrumors 68020

    Maclver

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    #1
    I have noticed over the past couple of weeks that my battery life sucks.... At the end of the day Im down to 15% and only had 15 hours of standby and 3 hours of usage... I use 3g for email and facebook. And don't use any push apps so is that battery life normal for a iPhone 3GS I'm getting the same usgae everyday? Like right Now I'm at 66% with 3 hours standby and 1.30 hour usage
     
  2. samcraig macrumors P6

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    #2
    How many bars?

    What kind of usage re: email and facebook (what are you doing)

    Doesn't sound normal - but we'd also have to know what brightness setttings, wifi, etc

    Did you ever calibrate the battery?
     
  3. Mad Mac Maniac macrumors 601

    Mad Mac Maniac

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    #3
    You don't use push, but is push turned to OFF?
     
  4. lindsayanng macrumors 68000

    lindsayanng

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    #4
    that was going to be my question.. i didnt USE push but I had it turned on just incase and my batter life decreased HUGELY.. I was out of battery by 8pm with about the same usage you are suggesting.

    go into your settings and turn push notifications off
     
  5. Reclaim3r macrumors regular

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    #5
    Doesn't sound normal to me... and the end of the day, I'm normally at 60%+ with about the same amount of usage.
     
  6. Small White Car macrumors G4

    Small White Car

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    #6
    That sounds exactly like my phone...maybe slightly better, even.

    I have a 3G, not an S, but I really don't know how much better the S is supposed to be at battery life.
     
  7. Maclver thread starter macrumors 68020

    Maclver

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    #7
    No wifi, brightness 75% and I installed the one push app so i don't have the option in te settings to turn it off... As far as my facebook and email just messages no pics or anythig like that...
     
  8. samcraig macrumors P6

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    #8
    Well 75 percent right there is going to eat your battery... Mine is set to about 40 percent...

    I get about 4-5 hours of decent usage with wifi on (3GS off) - calls, emails, web surfing, watching videos and no push apps running (fetch every 15 min on one account) and by night time I'm usually anywhere between 45-60 percent.
     
  9. Small White Car macrumors G4

    Small White Car

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    #9
    That's a biggie. I tend to have mine at about 30%.

    You'll notice a difference with that.
     
  10. Mad Mac Maniac macrumors 601

    Mad Mac Maniac

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    #10
    woah, that's pretty bright. I've realized that I really don't need all that brightness and have turned mine down to about 25%. Battery life has improved.

    You have intstalled a push app so you don't have the option to turn it off? :confused: that doesn't make sense
     
  11. miggitymac macrumors 6502a

    miggitymac

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    #11
    How much does push affect battery life?

    I have everything on except BT, brightness is about 45%, and at the end of the day I'm about 20-30 percent unless I give it a spot charge.

    3GS and I make about 1-1.5 hours of call time, less than 15 mins of surfing, occasional emails, ~4 hours of ipod and gaming (bejeweled, blocked, target tap, paper toss) while on the train.

    Will my battery life drastically improve with push notifications off?
     
  12. Small White Car macrumors G4

    Small White Car

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    #12
    Are you talking about e-mail? It depends on how often you get e-mail messeges, on average.
     
  13. Mad Mac Maniac macrumors 601

    Mad Mac Maniac

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    #13
    You should be able to notice a difference. I'd say it makes about a 10-15% difference. So if you don't use push then definitely turn it off. if you use it fairly frequently and are able to live with the current battery life then I'd say just keep it.
     
  14. miggitymac macrumors 6502a

    miggitymac

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    #14
    Yea email. I get maybe 10-15 per day on average.

    With push on, is my phone constantly checking the server to get new mail?
     
  15. Small White Car macrumors G4

    Small White Car

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    #15
    It depends! If you get 5 e-mails a day, push would be better than fetch.

    (Talking e-mail here. He didn't say. Yeah, if it's a push app he meant, you're probably right.)
     
  16. miggitymac macrumors 6502a

    miggitymac

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    #16
    In terms of battery life, is it better to turn off fetch and leave push on or vice versa?

    It's a personal account so it's not crucial that I get them right away...
     
  17. Small White Car macrumors G4

    Small White Car

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    #17
    Manual: It only checks when you open mail.
    Fetch: It checks at 15, 30, or 60 minutes despending on your settings.
    Push: It gets a message when it arrives at your mail server.

    So mansual is clearly best.
    In your case, Push would end up communicating about 15 times a day.

    If you have Fetch set to 1 hour it checks 24 times a day. If it's set to 15 minutes it checks 96 times a days. So for you, push is probably BETTER for your battery.

    If you get 100 e-mails a day, then clearly fetch would be better.
     
  18. miggitymac macrumors 6502a

    miggitymac

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    #18
    Ok, I'll try leaving push on and turning fetch to manual and see how much of a difference it makes.

    Thanks!
     
  19. cellocello macrumors 68000

    cellocello

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    #19
    Yea, do this.

    I've also noticed that those last 30% or so percent last forever. Don't be worried until you hit that 10% percent warning. And even then, you still have a bunch of juice left.

    That's my experience, anyway ...
     
  20. Maclver thread starter macrumors 68020

    Maclver

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    #20
    Sorry I have no push apps so I So I don't that option to turn it off.. I have fetch turned off but this started with 3.0.1 I think
     
  21. Mad Mac Maniac macrumors 601

    Mad Mac Maniac

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    #21
    hmm.. well then I would just suggest lowering the brightness. Have you always had it on 75%?

    The battery life isn't terrible just a little on the low side. Like I said mine is on about 25% but I bet even if you lower it to 40% you would see a noticable difference. It won't hurt your eyes an much when you look at the screen at night either :D That's actually why I lowered mine
     
  22. bboucher790 macrumors 65816

    bboucher790

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    #22
    Turn off "Notifications" in the General settings. Was it enabled?
     
  23. Maclver thread starter macrumors 68020

    Maclver

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    #23
    I don't see that option...
     
  24. Small White Car macrumors G4

    Small White Car

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    #24
    That only shows up after you use an app with push notifications.
     
  25. Dias macrumors 6502

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    Sep 16, 2007
    #25
    With Push Notification Off you can safely save 50% of your battery life (yeah, it sucks that much). I still don't get how somebody at Apple get it a "green light"...
     

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