Battery Meter: I charge all night and it will say "98%" or "99%" in the morning...

Discussion in 'iPad' started by Scott-n-Houston, May 17, 2010.

  1. Scott-n-Houston macrumors 6502a

    Joined:
    Apr 27, 2008
    Location:
    Houston (duh)
    #1
    Anyone else have this? I think it's the meter and software, not hardware, but curious if it's a unique issue.

    I've let it run all the way to zero before to try and reset it not long ago when I had this same issue after a charge and it then said "96%" after all night.

    Note: this is a full night on the 10w charger, not USB.

    My wife's never has this issue.
     
  2. chrono1081 macrumors 604

    chrono1081

    Joined:
    Jan 26, 2008
    Location:
    Isla Nublar
    #2
    It's not an issue its completely normal. Battery charge meters are never 100% accurate despite what people may try and tell you.

    My iPhone does this fairly frequently as does one of my camera batteries.
     
  3. Lartymarf macrumors regular

    Joined:
    Aug 11, 2007
    #3
    Yes, my 64gig 3G version also does this... happened twice so far.
    In the morning when I unplug it says 99% or 98%. =(
    But, I've been charging it with my original iphone usb charger.
    Not sure if it's any different from the 10W ipad charger that's included.
    Will try that one tonight.
     
  4. antiprotest macrumors 65816

    antiprotest

    Joined:
    Apr 19, 2010
  5. Lartymarf macrumors regular

    Joined:
    Aug 11, 2007
    #5
    Just recharged my iPad with the 10watt iPad charger.
    No problems charging up to 100%.
     
  6. iNickk macrumors member

    Joined:
    Aug 23, 2009
    #6
    I dunno if this is true for iPad, but my MacBook Pro and my iPhone charge to 100%, then run down to 97-98% and then go back up again. A similar thing could be happening here?
     
  7. macgeof macrumors member

    Joined:
    Apr 21, 2005
    Location:
    Sheffield:UK
    #7
    Just make sure you use the charger AND cable that came with your iPad. Not sure why the cable matters, but it seems to for me. iPad charger plus my iPhone3G cable != good combination and it takes forever to charge.
     
  8. JodyK macrumors 6502a

    JodyK

    Joined:
    Jan 29, 2010
    Location:
    Northern Atlanta suburbs
    #8
    Don't lose any sleep over it. If you are really concerned take it in to an Apple store or call Applecare. I bet they say its fine and a normal battery variance.
     
  9. cherry su macrumors 65816

    cherry su

    Joined:
    Feb 28, 2008
    #9
    The iPad battery chip probably does something similar to that of the Mac; that is, it will fully charge and stop charging to let the battery drain to approximately 90% or something to prevent the battery from overcharging.
     
  10. Harmush macrumors 6502a

    Harmush

    Joined:
    Sep 21, 2008
    Location:
    Liverpool
    #10
    My macbook sometimes stops charging when it gets to about 99%.

    Can't explain why but all batteries do it from time to time.
     
  11. boltjames macrumors 68040

    boltjames

    Joined:
    May 2, 2010
    #11
    I'm noticing the same thing. Here's what I'm finding:

    Wi-Fi on, 3G off = 100% charge by morning.

    3G on, wi-fi off = 100% charge by morning.

    Wi-Fi on, 3G on = 98% charge by morning.

    I'm getting the feeling that the iPad can handle the drain of either wi-fi or 3G all night, but if you've got both 'on' it can't get that last 4% over the hump in the 6 hours its charging overnight. And before someone asks "why would anyone need both wi-fi and 3G on at the same time?" the answer is: Push email.

    BJ
     
  12. JodyK macrumors 6502a

    JodyK

    Joined:
    Jan 29, 2010
    Location:
    Northern Atlanta suburbs
    #12

    NO I keep both on and show 100% ... I can surf for 10 minutes sometimes and still show 100% so the meter is off or there is battery variance.
     
  13. boltjames macrumors 68040

    boltjames

    Joined:
    May 2, 2010
    #13
    I've got an AT&T MicroCell which gives me stellar in-home 3G reception, so its odd that this is happening to me. I guess it's time to return my iPad to the Apple store and get a fresh one that doesn't have this percentage problem.

    BJ
     
  14. Streethawk macrumors 6502

    Joined:
    Feb 25, 2010
    Location:
    Manchester, UK
    #14
    You need an extra-elite version that shows 101%. :D
     
  15. steel magnolia macrumors regular

    Joined:
    Jan 12, 2008
    Location:
    South Florida/ N.C.
    #15
    Have you all with the meter issues tried letting the battery run completely down, until it shuts itself off, then recharging? Apple suggests this once per month, and I have found that if my battery meter seems off this corrects it. Give it a try before exchanging or repair trip, can't hurt.

    Patty
     
  16. calvin2006 macrumors regular

    Joined:
    May 15, 2006
    Location:
    Phoenix, AZ
    #16
    +1
     
  17. 4DThinker macrumors 68020

    Joined:
    Mar 15, 2008
    #17
    Looks like Apple owes you 4% of a battery. Take a few photos for proof, then stomp into your nearest Apple store with a red face loudly demanding a refund! :D
     
  18. eawmp1 macrumors 601

    eawmp1

    Joined:
    Feb 19, 2008
    Location:
    FL
  19. rmg007 macrumors member

    Joined:
    Aug 28, 2009
    #19
    Seriously? :rolleyes:
     
  20. boltjames macrumors 68040

    boltjames

    Joined:
    May 2, 2010
    #20
    Exactly. If I show up for work in the morning and I'm not at 100% on the meter before the girl fetches my coffee and laundry, people will think I'm to0 cheap to charge the thing fully. Not happening.

    BJ
     

Share This Page