Battery drops to 99% immediately after unplugging

Discussion in 'iPhone' started by Aidy06, Sep 27, 2012.

  1. Aidy06, Sep 27, 2012
    Last edited by a moderator: Sep 28, 2012

    Aidy06 macrumors regular

    Jul 25, 2011
    My battery doesn't stay at 100% after a charge, as soon as I unplug it it goes from 100% to 99%. Should I be worried about this? Only started doing it last 2 or 3 charges
  2. kdog005 macrumors member

    Feb 7, 2011
    Zanesville, OH
    Your phone is obviously defective. You should immediately make a Genius appointment and freak out about it.

  3. Greatorex macrumors newbie

    Oct 16, 2011
    Why are you being such a dick?
    People come here for advice, not to be condescended to by barely literate pre-pubescent trolls.

    OP, I believe it's to do with the trickle effect charge. I wouldn't worry about it.
  4. vastoholic macrumors 68000


    Jan 28, 2009
    Tulsa, OK
    It may be an effect of the trickle charge but I haven't seen this happen with mine yet. Do you unplug it as soon as it reaches 100%? Mine usually stays on for a while either over night or in my car so it's charged to 100% for a while and it stays that way for a bit after I start using it. You may still want to either call Apple support or make a genius appointment and see if they can give you some advice on charging. Maybe you just need to run it down to 0% and let it get a full charge cycle?
  5. bandofbrothers macrumors 601


    Oct 14, 2007
    Isnt their some technique to pulling the cord out whilst on charge, and turn off the iphone ,and then re attach the power cord to bump it to 100% to help callibrate it.

    Im sure after doing the usual calibration by letting the iPhone drop battery charge to turning off and re charging it will help too. I do this at least once a month. Also turning your iphone off and on once a month too will help reset it {i believe}

    Anyone would raise an eyebrow if the % charge did not get past 99% at first.

    Here is my tip to help any battery issues and this worked 100% for me.

    Navigate into Settings,, General, Usage Turn OFF the battery Percentage

    Worked wonders for me ;)
  6. Anajaf27 macrumors regular

    Sep 23, 2012
    Do you guys charge while your phone is on or off?
  7. blizzjazz macrumors newbie

    Sep 16, 2012
    It's normal. Usually when a device reaches 100%, the battery stops charging and starts to recharge-down to about 95% when it starts charging back to 100%. Your phone is going to read 100% regardless.
  8. bandofbrothers macrumors 601


    Oct 14, 2007

    I charge mine while its turned on, overnight.

    Even if you powered the iphone down as soon as you insert the power cord it will turn back on.
    I know some who have inserted the cord and then turned it off !

    Lots of different methods which reach the same result.
  9. SR45 macrumors 65832


    Aug 17, 2011
    This is normal OP. Does same with the other phones, iPad, etc. ;)
  10. Dstopsie macrumors 6502a


    Jun 22, 2010
    I had every iPhone since the first one and have never had this type of issue. Maybe you need to reset your network connections.

    Go to settings, general, reset, then click on where it's reset network settings. That usually helps restore your battery and close anything running in the background. Also you should make sure that your task manager has been cleared of any apps running there in the background
  11. w00t951 macrumors 68000


    Jan 6, 2009
    Pittsburgh, PA
    Batteries do that. To prevent damage to the cells, once a battery has reach 100%, they usually discharge to 98% (iPhones) or 95% (Macs and iPads) before charging to 100% again.

    If you notice your battery not reaching 100% in one charge (it switches icons from charging to plugged in at 99%) completely discharge your phone until it powers itself off, then charge it back to 100% in one continuous charge.
  12. Aidy06 thread starter macrumors regular

    Jul 25, 2011
    Never occurred on my 3GS, 4 or 4S. When I got it on friday I let it completely drain before charging it, I charge it overnight. I'll see how it goes
  13. fsck-y dingo macrumors 65816

    fsck-y dingo

    Jun 14, 2009
    Your phone may be fine. When it reaches 100% are you unplugging it right away? The percentage indicator will display 100% before the large battery icon shows it being full. There's a small sliver left and from there my phone takes an extra 15-20 minutes before it really is full charged.
  14. georgia-svt macrumors newbie

    Jun 19, 2012
    I too had this same problem this is what I did to fix it. It is a exchange email bug. Turn off all push and fetch notifications for your email account or accounts. I have 4 mediacom which only has a fetch option, exchange account, iCloud, and a google used for contacts and calender account. I have turned off all at first and this cured the problem. I have turn on my mediacom mail and still no problems. The other accounts I have set to manual. Try this and see if it fixes it.
  15. BFizzzle macrumors 68020


    May 31, 2010
    Austin TX
    they have low self esteem so they need to make fun of someone through the internet to feel a little bit better about their selves. It's quite simple ;)
  16. armoredsaint macrumors regular


    Sep 7, 2010

    dude thanks for great laugh for a Friday morning :D


    does resetting network include erasing bluetooth and wifi connections to?
  17. negrohero9 macrumors regular


    Sep 26, 2012
    How do you charge with it off? :confused: Every iPhone i have ever had turns on once the cable is connected...even if its out of battery it will turn on and charge.
  18. Appleseeds macrumors regular

    Sep 2, 2012
    Mine does this occasionally as well. Usually a reboot fixes it.

    Plug it in. Then turn it off it will stay off.

Share This Page