10 Replies Latest reply: Jul 12, 2012 6:52 AM by sbailey4
ac1209gcdc Level 1 (0 points)

Why doesn't the iPhone 4s charge to a full 100% when charing over night?


iPhone 4S, iOS 5.0.1
  • paulcb Level 6 (19,110 points)

    It should.  Try fully discharging (till it shuts off) and then fully recharging (100% or 4 hours) to recalibrate your battery meter.  You might need to do this 2-3 times.

  • ac1209gcdc Level 1 (0 points)

    Should I contact apple to see if there is a reset for this?

  • paulcb Level 6 (19,110 points)

    No, there's not a reset for that, except for what I described.

     

    If that doesn't work, you can try a Restore with your backup.

  • ac1209gcdc Level 1 (0 points)

    What's a restore, and do you think it's better to do the 4 hour charge or let it die and then charge it?  This is my first iPhone so I am completely sure on how to deal with this.

  • paulcb Level 6 (19,110 points)

    Try the discharge/recharge first.  If still a problem, click the link in my earlier post to learn how to Restore.

  • ac1209gcdc Level 1 (0 points)

    Ok great thank you, and recharging overnight shouldn't be a problem right?

  • paulcb Level 6 (19,110 points)

    No problem at all... you can charge as often and as long as you like... like most all modern consumer devices, the iPhone will stop charging when full.

  • ac1209gcdc Level 1 (0 points)

    Ok great thank you so much!

  • paulcb Level 6 (19,110 points)

    You're welcome.

  • sbailey4 Level 1 (25 points)

    OK sort of an old thread now but this apparently is a common issue. Restore wont help. I have researched it for the past week (did several months ago too and gave up) but I now have somewhat of a solution to this phenomena. For whatever reason mine seems to stay at 100% most of the night than around 7:00am it would drop to 97% or so within a few minutes. This sorta stopped when iOS 5.1.1 came out. Now it stays at 100% until I unplug it then it drops. What I was doing was each morning when wake up, I unplug then plug back in while I was getting ready for the day and it would go back to 100%. So for the fix. What I have discovered over the past week worked 100% of the time. When go to bed I turn off the phone with the slider. Then plug in charger and let the phone come alive again by itself. But I do not log it in. Just let it sit at the lock screen. Now every morning its at 100% and stays that way for more than an hour (If not used). So it is being fully charged and remaining that way. iPhone will quick charge to 100% by meter but in reality it still needs longer to fully charge. Anyway this process has solved the waking up to less than 100% while still being connected to the charger.