Battery life w/ and w/o wifi

Discussion in 'iPhone' started by yojimbo1, Mar 17, 2008.

  1. yojimbo1 macrumors member

    Nov 9, 2006
    I get significantly better battery life with wifi turned off---I'd say about 20% better.

    Do others have the same experience?
  2. TEG macrumors 604


    Jan 21, 2002
    Langley, Washington
    I have noticed some better battery life, but I've never kept Wi-Fi off for very long.

  3. Carnivor macrumors regular


    Feb 24, 2008
    I generally have wifi off, where i work i cant access anything wifi, and when i get home i turn it on when i need to beef up the connection speed a little for youtube or satellite view in maps, for email i wouldn't turn it on. And going between work and home i use a motorbike so cant really use it, and i don't condone using it for music whilst riding!!! sometimes i do wish i used a bus to get to work.

    I can probably get 3 full days between charges but im usually syncing every night,

    3/4 calls a day
    5 texts a day
    5 bits of browsing whilst smokin a ciggy outside in work breaks
    2/3 hrs listening to music a day at work
  4. SFC Archer macrumors 68000

    SFC Archer

    Nov 9, 2007
    Troy, MT
    I have never turned wifi off...I average over 48 hours stand-by and probably would get more if it werent for the fact that I recharge every other night.
  5. kuebby macrumors 68000


    Jan 18, 2007
    I always leave Wi-Fi on and I can easily go 2 days without recharging which is excellent in my opinion, or at least it's way better than what my old Motorola Q used to get.
  6. kdarling macrumors P6


    Jun 9, 2007
    First university coding class = 47 years ago
    If just in standby, WiFi uses probably only about 20ma. If actually transceiving on WiFi, it's using perhaps 150-250ma.

    The battery has 1400maH (milliamp Hours) capacity.

    You can calculate how much of the battery active WiFi would use.
  7. otep1760 macrumors regular


    Sep 4, 2007
    i charge my iphone everynight, i also leave my wifi on all the time.

    is it bad to charge my phone everynight?
  8. LastZion macrumors 6502a

    Apr 13, 2006
    From what I have read no it is not bad. It is however bad to let you phone drain all the way. Your phone has a set number of charge cycles but those are full cycles, so if you are charging every night when you have 50% left, every 2 will count as 1 cycle.

    Please correct me if I am wrong
  9. Surely Guest


    Oct 27, 2007
    Los Angeles, CA
    I charge just about every night too. If I don't, I may run out of power during the second day. I've only run out of power once- early afternoon on day 2-(below), but I've been close a few times. Can anyone confirm LastZion's comment about charging?

    I started to keep track of my usage stats last week. So far, these are the longest times:
    Usage: 7 hrs, 56 min
    Standby: 1 day, 4 hrs
    Battery charge remaining: completely dead

    Would that be along the lines as 'normal' or 'acceptable' for usage and standby? Any insight would be helpful.
  10. m477h3w macrumors 6502

    Nov 9, 2007
    Bristol, UK
    I also believe this to be correct :D My iPhone charges everynight whether it needs to be or not, just it case it runs out on the second day :D
  11. runplaysleeprun macrumors 6502a


    Jul 27, 2004
    Chicago, IL
    I also do this. I use it pretty heavily, though. I have had it die a few times the second day if I didn't have a change to charge it over night.
  12. wesk702 macrumors 68000


    Jul 7, 2007
    The hood
    i think mine is pretty good regardless so I don't even check anymore
  13. Ol!ver macrumors 6502a

    Mar 2, 2005
    Battery will always be better with stuff turned off.
  14. josielinnea macrumors regular


    Dec 15, 2007
    Yeah, almost 8 hours of actuall use is actually not just ok, it's pretty good if you ask me.

    Personally I've never had so long use-time, I only use it a little bit every day. Maybe 30 minutes or so. I would have to recharge it every 5-6 days but normally do it a little bit more often just to make sure I don't completely run out :)

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