6 Replies Latest reply: Jun 14, 2012 1:35 PM by Meg St._Clair
Nancy California Level 1 Level 1

I have seen many discussions regarding Lithium-Ion batteries but am not yet sure whether I should keep my new iPad 2 plugged in to the power outlet whenever I can conveniently do so?  As long as I deplete the battery completely once a month as suggested at http://www.apple.com/batteries/ipad.html, having the power adapater plugged in would reduce the overall number of charge cycles and thereby enhance the life of the battery, or?


Would it be better to unplug it when it is fully charged in order to not overheat/overcharge the iPad?


Thanks for any advice!



iPad 2, iOS 4.3.2
  • Meg St._Clair Level 9 Level 9

    Plug it in when it's convenient. It will stop charing when it gets to 100%. If it appear to be overheating, there's something wrong either with you iPad or your wiring.

  • Nancy California Level 1 Level 1

    Thanks Meg, appreciate it!  No, I haven't noticed any overheating, just was wondering if that could happen.

  • hawleyrw Level 3 Level 3

    The best maintenance for any battery is to use it as much as possible.  Charge it when the battery gets low (turns red).  I let mine go as low as possible considering my circumstances (when I'm just sitting at home is one thing, when I'm on the go, it's another).


    Batteries (no matter the technologly behind them), do best when the battery is used like it's supposed to - use until it needs charging, then charge to full charge.  Leaving the charger on there causes no risk - it can't overcharge and shouldn't ever overheat.  BUT - don't leave your iPad charging ALL THE TIME.  It's best way to have a battery that won't hold it's charge when you need it to.


    I've seen all too many folks who've had laptops, keeping them plugged in all the time, then wonder why when they do use the battery, it no longer works.  I hear the same thing:  "I haven't even used the battery!". 


    Just remember, batteries are meant to be USED...so let them do their job.  Charge/Discharge/Charge....and so on.



  • Nancy California Level 1 Level 1

    Thanks hawleyrw for a detailed reply, appreciate it! Sounds like using batteries are like using muscles, if you don't use them, they will atrophy!

  • rexluther Level 1 Level 1

    Why cant we get any concensus on this?  There should be any easy answer.  Yes or no?

  • Meg St._Clair Level 9 Level 9

    Here is what Apple says on the subject:






    Here is an additional resource:




    However, for most consumer devices which will only be used for 2-3 years, it really doesn't matter that much. Don't waste too much time worrying about the battery. Just use and enjoy your device.


    Best of luck.