How long to charge new iPad 2 to 100%?

Discussion in 'iPad' started by pgmrob3, Mar 18, 2011.

  1. pgmrob3 macrumors newbie

    Joined:
    May 7, 2010
    #1
    I've had an ipad since the 3g launch last year. I have always been impressed with the battery life. I got a 32 wifi ipad 2 on launch day. I am now charging it for my 3rd time.

    I can't help but notice how much longer it is taking to get to a 100% charge than the original ipad did. I've had it connected for four hours this morning and it is only at 82%.

    Anyone else experiencing the same?
     
  2. iPad 2nd Gen macrumors regular

    Joined:
    Feb 28, 2011
    #2
    It's been 2 hours and I'm at 87% now. Remember that batteries charge at a capacity vs time at an exponential rate. Meaning the more it's charged, the longer it'll take to get to the next %. It'll go from 0 to 20% much faster than it will go from 80 to 100%. Keep that in mind.
     
  3. dagored macrumors 65816

    Joined:
    Sep 18, 2007
    Location:
    Florida
    #3
    Depends on how low the battery and how you charge it:

    To USB computer or to a wall outlet. It will charge faster plugged into the wall. That was my experience. YMMV
     
  4. pgmrob3 thread starter macrumors newbie

    Joined:
    May 7, 2010
    #4
    I should have included that it's been plugged into a wall outlet with the charging cable that came with it. Charging from lower than 10%, but still seems it should be charging faster.
     
  5. DS3 macrumors 6502a

    Joined:
    Mar 7, 2011
    #5
    Mine wont charge at all from my desktop pc's usb port which is kind of annoying. Its pretty slow (maybe 20% per hour.. pure estimate) from the wall. Ive never had it get below 50% though.
     
  6. C N Reilly macrumors regular

    Joined:
    Nov 22, 2008
    #6
    Yeah, always use the charger it came with. Those are 10-watt chargers; the ones that come with iPhones and iPods are only 5 watts, and would take twice as long to charge.

    I find the iPad chargers also charge iPhones much faster. :)
     
  7. fisha20 macrumors newbie

    Joined:
    Mar 15, 2011
    #7
    We are using the charger that came with the iPad. It's incredibly slow. Let it charge overnight and it only gets to 98%.
     
  8. Chupa Chupa macrumors G5

    Chupa Chupa

    Joined:
    Jul 16, 2002
    #8
    Yes and no.

    I get a normal/fast 4 hour charge from 20% if I use the supplied charger and cable. However, if I use one of the cables that came w/ my older iPods or iPhones or a 3rd party cable charging can take 7 hours from 20%.
     
  9. kvizzel macrumors 6502a

    Joined:
    Jan 15, 2011
    #9
    apple wall charger, took about 4 and a half hours from a full drain.
     
  10. dmaul1114 macrumors 6502

    Joined:
    Mar 12, 2011
    #10
    3-4 hours from 10% or so using the wall charger for me.
     
  11. Bswartz95 macrumors 6502

    Bswartz95

    Joined:
    Feb 3, 2011
    Location:
    Columbus, OH
    #12
    So it's okay to use the iPad charger for my iPhone? I guess I never thought of a difference between the two wall chargers.
     
  12. bbedwards macrumors newbie

    Joined:
    Dec 30, 2008
  13. JeffMorse macrumors regular

    Joined:
    May 12, 2010
    #14
    Only kinda related, but charging via usb, I get about 8% an hour if the screen is off. I can't maintain a charge if the screen is on via usb.
     
  14. rondz macrumors regular

    rondz

    Joined:
    Feb 4, 2008
    Location:
    Harbor Bay Isle
    #15
    Yeah from fully drained it took me about 4 1/2 hours for it to get to 100% again.
     
  15. fritzov macrumors member

    Joined:
    Jan 11, 2009
    #16
    Yeasterday i let my battery go down to 0% and it took it around 4 hours to get back to 100%.
     
  16. wizee macrumors member

    wizee

    Joined:
    Mar 16, 2011
    Location:
    Pennsylvania
  17. FeaRThiS macrumors 6502

    Joined:
    Mar 25, 2011
    #18
    Completely discharged the battery pluged it into my pc and within 30minutes I'm at 18% goin to bed now so guess I will never know how long it takes to get to 100%
     
  18. Mlrollin91 macrumors G4

    Mlrollin91

    Joined:
    Nov 20, 2008
    Location:
    Ventura County
    #19
    Mine is roughly 1% every 2.5 minutes plugged into the wall. Every time I charge it comes out to be that so a full charge would be about 4 hours and 10 minutes.
     
  19. miamialley macrumors 68030

    miamialley

    Joined:
    Jul 28, 2008
    Location:
    Los Angeles, CA
    #20
    Hmm...I didn't think of that.

    Will the iPhone charge faster with the iPad charger?
     
  20. kvizzel macrumors 6502a

    Joined:
    Jan 15, 2011
    #21
    No, but it might explode!

    Just kidding idk.
     
  21. rondz macrumors regular

    rondz

    Joined:
    Feb 4, 2008
    Location:
    Harbor Bay Isle
    #22
    Just charged to 100% again but this time at 17% I plugged it in and it took 4 hrs and 10 minutes with WiFi on and 3G turned off.
     
  22. master-ceo macrumors 65816

    master-ceo

    Joined:
    Sep 7, 2007
    Location:
    The SUN
    #23
    If your iPad 2 takes longer than 3-5 hours to fully charge, you have a faulty iPad
     
  23. Chupa Chupa macrumors G5

    Chupa Chupa

    Joined:
    Jul 16, 2002
    #24

    Not necessarily. It could be a bad charger or cable, not the iPad. Also 3-5 hour charge is only w/ supplied a/c charger and dock connector cable. If you use anything else it could be those items causing the slow charge & not the fault of the iPad. Older cables, esp. can cause slow charging.
     
  24. stringbeanie macrumors 6502

    Joined:
    Aug 25, 2008
    Location:
    Southern California
    #25
    Using iPad cable and AC from the iPad box mine went from 10% to 62% in 6.5 hours. My 1st gen iPad always went to 100% overnight.
     

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