iPhone 4 battery life benchmarks

Discussion in 'iPhone' started by colourtheatre, Aug 8, 2010.

  1. colourtheatre macrumors regular

    Joined:
    Jan 28, 2010
    #1
    hi everyone,

    i just thought some people might be interested to perform some benchmark tests including usage and standby times so for those interested, this will help us do some sort of comparison i guess?

    my setup: 3G on all the time, wifi off, notification off, push off, location on, autobrightness off, brightness at around 20%, jailbroken

    light browsing: 3 – 4 minutes on average per 1%

    intense downloading of apps and lots of email downloads: 2 – 3 minutes per 1%

    usage: 29% with 4 hours and 36 minutes usage/1 day and 14 hours standby based on light browsing, email checking, phone calls, text, and alarm clock

    couldn't really test out gaming yet but i'll post it when i get to test it
     
  2. feddy84 macrumors member

    Joined:
    Jul 7, 2010
    #2
    atm im at 6%.
    7 hours 30 minute program + 1 hour 10 min music playing.
    1 day 7 hours standby.
    notifications off. wifi on, brightness 25%, jailbroken without sbsettings

    usage is at checking we farm we rule and for about 1 hour
    1 hour video throu air video while streaming through wifi (brightness 40%)
    the rest is angry birds and osmos and things like that.
     
  3. Roofy. macrumors 6502a

    Joined:
    Jan 24, 2009
    #3
    20% life left. 6hrs 24 min usage, 22hrs 44 min standby.

    Wifi web browsing, pandora, some games, and some texting.

    Wifi on only when I need it, Bt off, 50% brightness, push off.
     
  4. ntrigue macrumors 68040

    ntrigue

    Joined:
    Jul 30, 2007
    #4
    My very conservative use netted me:

    Usage 10 hours
    Standby 2 days 2 hours
     
  5. feddy84 macrumors member

    Joined:
    Jul 7, 2010
    #5
    you realy should post how much of that is music playing since music drains like 0% battery
     
  6. SmackP macrumors member

    Joined:
    Jul 8, 2010
    #6
    Your 3-4 min per % sounds EXACTLY like my iPhone 4.

    Here's an interesting one though:

    1. Wifi, phone, BT, location services all OFF [airplane mode].
    2. Soft reset the phone fully charged and left it overnight.

    After 10 hours standby and 0 usage it dropped to 82%!

    That's 18% drop with no radio or tasks!

    Can anyone else try the same?

    To compare, my iPhone 3G lost only 5-10% over two days WITH phone on!
     
  7. elie.fares macrumors regular

    Joined:
    Sep 13, 2008
    #7
    Usage: 8 hours 41 min
    standby: 3 days 15 min

    Battery % remaining: 33%

    My use comprised of wi-fi browsing, facebook and twitter, along with angry birds and other games, camera use, flashlight using LED, iBooks, etc..

    I synced the iPhone once to add a few songs on it and whatnot but immediately removed it after syncing it.
     
  8. Slithers96 macrumors newbie

    Joined:
    Jul 22, 2010
    #8
    Same thing happened to me, except mine also drained battery while the phone was powered off. I went and got it replaced. Take a screen shot with it fully charged and then turn it off overnight, turn it on when you wake up and take another screen shot. I had to do that because the first couple times I went, they kept running tests on it saying the battery was normal so they wouldn't do it. It did help though that the 3rd time I went that I got someone cool and the previous two "geniuses" were tool bags.
     
  9. SmackP macrumors member

    Joined:
    Jul 8, 2010
    #9
    and was your replacement better or the same?
     
  10. Slithers96 macrumors newbie

    Joined:
    Jul 22, 2010
    #10
    I believe it is better now, but I haven't really tested it out while off or on airplane mode as of late. When I first got my replacement, I left it on airplane mode for like 6 hours and it didn't drop a percentage point at all, but that was like almost a month ago. Today I took it off the charger and it went down to like 98% in only an hour of being on (I only sent a couple of text messages out), and then I turned it off, turned it back on and it was back to 100%. This new iOS sure has issues figuring out how much battery life it really does have left it seems.
     
  11. SmackP macrumors member

    Joined:
    Jul 8, 2010
    #11
    it's really funny you say that because exactly the same thing happened to me today as I was testing out the battery drain in airplane mode after a full reset.

    it jumped from 99% back to 100% and after 3 hours it's lost 4% even though it's in airplane mode.

    It seems we are getting the exact same results.
     
  12. colourtheatre thread starter macrumors regular

    Joined:
    Jan 28, 2010
    #12
    @SmackP the most drain i got so far from leaving the iPhone overnight was 10% for around 8 - 9 hours (this is with 3g on) but in airplane mode, i got around 3 - 5 % drain. 12% is a lot but it seems your battery drain fixed the issue?

    i also noticed that with my iDevices, upon overnight charge to 100%, the initial drop from 100% to 99% takes a while longer which is pretty nice. usually get like roughly 15 minutes usage on those when browsing the internet on 3g.
     
  13. ntrigue macrumors 68040

    ntrigue

    Joined:
    Jul 30, 2007
    #13
    One hour.
     
  14. CSpackler macrumors regular

    CSpackler

    Joined:
    Jun 22, 2010
    Location:
    On a plane
    #14
    Those who are draining during standby need to say whether push email or notifications are on. These both will drain 10% overnight on average.
     
  15. leebroath macrumors 6502

    leebroath

    Joined:
    Jul 26, 2010
    Location:
    Scotland
    #15
    There should be a list drawn up which you can check off to make sure everyone has the same stuff on
     
  16. colourtheatre thread starter macrumors regular

    Joined:
    Jan 28, 2010
    #16
  17. trssho macrumors 6502

    Joined:
    May 24, 2009
    #17
    I think the test should be run using a standardized test where all "backgound" apps are closed, iP4 diectly off charger, the turn on some free high energy demand app, like maps w/ gps. Brightness at 100% etc etc. Then run this app for 1 hour, then report where the batt % is at. This would be the best way to standardize the test.
     
  18. colourtheatre thread starter macrumors regular

    Joined:
    Jan 28, 2010
    #18
    that's a good suggestion. i guess we can try that as well concurrently with the survey. got 11 responses including mine so far. results varrying and rather surprising. please view the attachments. ps: there was one user on 3g with 12 hours usage. amazing!
     

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