Fully Charge my iPhone before use?

Discussion in 'iPhone' started by EmbraceTheOne, Oct 8, 2011.

  1. macrumors 6502a

    EmbraceTheOne

    Joined:
    Aug 26, 2011
    #1
    Do I need to fully charge it before I turn it onand use it? Or can I fire that sucker up? Everytime I see a review/unboxing of an iPhone, Everyone powers it on right away. Does this decrease battery life?

    I've done some research on this, Some sites say yes, other sites say no. I know its an Li-on battery. But I don't know if it's better to charge it all the way, or let it die, then charge it.


    Edit: I know it's going to have some juice in it. I just want to Maximize battery life.
     
  2. macrumors 68040

    Badandy

    Joined:
    Sep 29, 2005
    Location:
    Terminus
    #2
    I'm no electrical engineer, but I'm convinced it doesn't matter. That being said, they usually don't take that long to charge anyway so why not play with it while it's plugged in?
     
  3. macrumors 604

    ZBoater

    Joined:
    Jul 2, 2007
    Location:
    Sunny Florida
    #3
    Fire that puppy up! No way I'm waiting for a full charge. I'll play with it while it's plugged in if I have to....
     
  4. macrumors 6502a

    iDuel

    Joined:
    Jul 20, 2011
    Location:
    Greece/USA
    #4
    Nope! It should have enough power. You can start using it right away!
     
  5. thread starter macrumors 6502a

    EmbraceTheOne

    Joined:
    Aug 26, 2011
    #5
    Im convinced too.
    But everyone I get a new Replacement phone (EnV Touch) It states Fully Charge it for 12 hours.

    But then again, It's not Li-On.
     
  6. macrumors 6502a

    forza69

    Joined:
    Jan 30, 2010
    Location:
    San Diego, CA
    #6
    I remember reading somewhere that it's better to let your iPhone die completely then fully charge it. Not sure if it's true, but I'm going to do it anyway.
     
  7. macrumors 68000

    steve knight

    Joined:
    Jan 28, 2009
    #7
    it's silly and pointless. you can't fully drain the batteries (lucky you it would kill them) your going by peoples opinions on 10 year old battery data.
     
  8. macrumors 65816

    ProwlingTiger

    Joined:
    Jan 15, 2008
  9. macrumors 6502a

    forza69

    Joined:
    Jan 30, 2010
    Location:
    San Diego, CA
    #9
    Meh, it doesn't really matter anyway. I'm sure once I unbox it, I'm going to want to play with it for a while so I'll need for it to be charging simultaneously. I just remembered where I read it from. It was actually a YouTube video by Jon Rettinger (jon4lakers). I know he's no tech guru, but he usually knows what he's talking about.
     
  10. macrumors regular

    tahoeroscoe

    Joined:
    Apr 25, 2009
    Location:
    California
    #10
    Doesnt matter on the newer lithium batteries. With old ni-cd batteries full cycles were important for battery endurance. Lithium batteries don't care.
     
  11. macrumors 68000

    steve knight

    Joined:
    Jan 28, 2009
    #11
    actually Li-on batteries do better of they are not drained as far as possible.
     
  12. macrumors 6502a

    theDUB

    Joined:
    Nov 15, 2008
    Location:
    SLT, CA
    #12
    Here's everything you need to know: http://www.apple.com/batteries/iphone.html

    When I get a new device, I always go through three full charge cycles when I first take it out of the box. That is, let it charge all the way, then use it until it shuts itself off and repeat 3 times. Yes, it's kind of inconvenient. Is it necessary? Probably not, but it makes me feel warm and fuzzy inside. One thing I can say is that my iPhone 3G, which I've been using since October of '08 still easily lasts 1+ day with normal use on a single charge.
     
  13. macrumors 6502a

    forza69

    Joined:
    Jan 30, 2010
    Location:
    San Diego, CA
    #13
  14. macrumors 6502a

    theDUB

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    Location:
    SLT, CA
    #14
  15. macrumors member

    Joined:
    Jul 7, 2009
    #15
    come on.. it is just a PHONE!.. not a million house...
     
  16. macrumors 604

    Joined:
    Sep 17, 2009
    Location:
    Melbourne, Australia
    #16
    What your supposed to do for max battery performance is don't charge your phone, instead use it until it completely dies from low battery. Then charge it overnight.
     
  17. macrumors 68030

    vitzr

    Joined:
    Jul 28, 2011
    Location:
    California
    #17
    "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)."

    http://www.apple.com/batteries/iphone.html

    Simple & easy, it works.
     
  18. macrumors member

    macinmac

    Joined:
    Jul 30, 2011
    Location:
    Romania
    #18
    I read an old post here on forum but I do not remember where..anyway I made an screenshot at that time, here it is:

    [​IMG]
     
  19. macrumors member

    Joined:
    Mar 7, 2011
  20. macrumors regular

    tahoeroscoe

    Joined:
    Apr 25, 2009
    Location:
    California
    #20
    This for maximum battery longevity. And dont expose it to extreme temperatures.

    All this draining and full charging business does nothing for battery life. Some people believe that if your battery % indicator is off then this will recalibrate it so the readout is more accurate, but it does nothing to actually extend the life of the battery.

    It was true with ni-cd batteries of 10 years ago but modern lithium batteries don't need it.
     
  21. macrumors 68000

    steve knight

    Joined:
    Jan 28, 2009
    #21
    very true topping them off works the best. But the fables about batteries still are though of as truth.
     
  22. sddabrow, Oct 9, 2011
    Last edited: Oct 9, 2011

    macrumors regular

    Joined:
    Oct 7, 2011
    #22
    I am also not an electrical/materials engineer, but I am a mechanical engineer.

    I listened in on a seminar regarding Lithium Ion batteries and how best to keep the earth 'green'. Per seminars with Professors who studied in these fields this was their response, which has proven true on the majority of my devices:

    Do not keep a phone or laptop plugged in after it reaches 100% and do not let the battery drop below 20%. There is no need to cycle the power fully up and fully down, this was used on old technology to calibrate the sensors in the phone as well as the battery. If the charge is brought down to 0, the issue is the cells begin to slowly disperse/separate from one another causing degraded battery life.

    Hope that helps - I found this to be true as my laptop batteries died so quickly from keeping them plugged in all the time.
     
  23. macrumors 68000

    Joined:
    Oct 26, 2008
    #23
    Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8F190 Safari/6533.18.5)

    That was true fir NiMH and NiCad batteries. It's also the one thing you should avoid doing regularly with a lithium-based battery.
     
  24. macrumors 68040

    Badandy

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    Sep 29, 2005
    Location:
    Terminus
    #24
    Yes, but not Apple products.
     
  25. macrumors regular

    Joined:
    Oct 7, 2011
    #25
    What do you mean not apple products? Yes my example was on a HP, but the same concept is in regards to all Lithium batteries.
     

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