Battery Life when iPhone is switched OFF

Discussion in 'iPhone' started by GfPQqmcRKUvP, Aug 8, 2008.

  1. GfPQqmcRKUvP macrumors 68040

    GfPQqmcRKUvP

    Joined:
    Sep 29, 2005
    Location:
    Terminus
    #1
    Hey guys. I charged my iPhone 3G to about 95% battery life and then switched it OFF about two weeks ago. I'm out of town, and it is sitting in my cabinet in the off position. I have one week to go until I go back home, and I was wondering if I should tell someone to plug it in for a bit, or if it's fine? I know it's better to use it a little, but I don't really want anyone else using my phone.

    I basically would like to know if it is at 0-20% after two weeks, because if it is, I could have someone charge it for a couple of hours. I'm inclined to think it is still doing well, but any input I could get on this topic would be great.


    Thanks.
     
  2. philgilder macrumors 68000

    Joined:
    Sep 30, 2007
    Location:
    UK
    #2
    should be pretty much where you left off
    the phone won't use any power when off, although li-ion batteries do drain a bit
     
  3. ubersalad macrumors 6502a

    Joined:
    Feb 26, 2008
    #3
    Don't plug it back in, I am sure many of us would like to know how it holds up.
     
  4. Rybold macrumors 6502a

    Rybold

    Joined:
    Jun 23, 2008
    Location:
    California, USA
    #4
    The iPhone was not meant to be turned off. Once you buy it and turn it on, it is supposed always remain turned on. :D

    Serious answer: The Apple iPhone online instruction manual actual says that you should not leave the phone turned off for extended periods of time. Their exact wording says "Use iPhone Regularly. For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. Be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down)."

    ULTIMATE LINK !!!!!!!
    http://www.apple.com/batteries/iphone.html
    Use iPhone Regularly


    .
    .
    .
    http://www.apple.com/iphone/tips/
     
  5. alphaod macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #5
    Charge the battery to 60% and then leave it off; that say the battery will deplete the least and it will last the longest.
     
  6. GfPQqmcRKUvP thread starter macrumors 68040

    GfPQqmcRKUvP

    Joined:
    Sep 29, 2005
    Location:
    Terminus
    #6
    Well, I'm back and my iPhone is fine. Just for reference for anyone out there:

    Battery at around 85% when I left for the trip

    POWERED OFF

    3 WEEK BREAK

    Battery around 70% when I came back yesterday
     
  7. mappyman macrumors regular

    Joined:
    Jul 26, 2008
    Location:
    UK
    #7
    Thats pretty good, I know my PSP drains totally when I dont use it for 4 weeks.
     
  8. daihard macrumors 6502a

    daihard

    Joined:
    Feb 19, 2008
    Location:
    Seattle, WA
    #8
    You mean even if you shut it off? How can a battery drain so fast?
     
  9. ki2594 macrumors 6502a

    Joined:
    Apr 12, 2008
    Location:
    Carmel, IN.
    #9
    If you fully charge it then just turn it off, should be just about 300 hours.
     
  10. Ninja Dom macrumors 6502

    Ninja Dom

    Joined:
    Feb 12, 2007
    #10
    Yup, my PSP is exactly the same - 2005 Japanese model.

    Charge it to full, leave it off for a few weeks and then return to turn it on. Battery dead.
     
  11. Van Wildonher macrumors 6502a

    Joined:
    Apr 29, 2008
    #11
    Sounds like you guys need new batteries.
     
  12. Rat-Boy macrumors 65816

    Rat-Boy

    Joined:
    Jul 28, 2008
    Location:
    Georgia
    #12
    I know this is out of place on an iPhone forum, but I agree with the others here.

    My PSP battery just flat out stinks and drains SUPER fast if the unit is never powered up.

    As far as the iPhone battery, is there any way to get an actual percentage on it or do you just have to go by the silly green meter and guestimate?
     
  13. mappyman macrumors regular

    Joined:
    Jul 26, 2008
    Location:
    UK
    #13
    On a jail broken iPhone you can install Bossprefs which has an option to then shows a numeric value battery.
     
  14. macplace10 macrumors newbie

    Joined:
    Sep 20, 2008
    #14
    Twice now I have switched off my 3g iphone for approx 5days, (circumstances dictate the phone must be switched off).
    The iphone was nearly fully charged before it was switched off but when I switched it back on the battery has been flat on both occassions.
    Could some app be running in the background even after it is switched off?
    The phone is jailbroken and I have Cydia, WinSCP, OpenSSH, BossPrefs and Winterboard installed.
    Help to understand what might be happening would be greatly appreciated.
     
  15. arrow201 macrumors member

    Joined:
    Sep 30, 2008
    #15
    Contrary to some responses here, i don't see any problem in turning
    the unit "off" to keep those battery ions moving :) ...if you think about it,
    even if the OS is not booted up, the unit is still using battery power. If
    noticed, the sleep/wake button is not a hard switch, some sort of logic is
    running, not only to sense the button, but the amount of time the button
    has been depressed. I dont think the unit is entirely "off" unless you
    remove the battery.
     

Share This Page