When to charge an iPad 3?

Discussion in 'iPad' started by mark28, Jul 21, 2012.

?

When to recharge the battery?

  1. Only recharge at 0%

    14 vote(s)
    12.7%
  2. Recharge at 40%-50%

    22 vote(s)
    20.0%
  3. Recharge everyday regardless of how much battery is left

    74 vote(s)
    67.3%
  1. mark28 macrumors 68000

    Joined:
    Jan 29, 2010
    #1
    I looked all over the internet, but everybody seems to have a different opinion on what's best. So what's best practice for charging the iPad 3.

    1. Complete drain
    2. Drain to 50%
    3. Recharging everyday ( so about 80% )
     
  2. Abazigal macrumors 604

    Abazigal

    Joined:
    Jul 18, 2011
    Location:
    Singapore
    #2
    For me, it is once every 2 nights. My schedule isn't that flexible as to allow me the luxury of allowing it to first drain all the way to zero (which can be in the middle of a school lesson). Typically, 2 days of regular usage drains the battery to ~20-30%. I then have it charge overnight as I sleep, as I know it definitely cannot last through another day. :)
     
  3. thewitt macrumors 68020

    thewitt

    Joined:
    Sep 13, 2011
    #3
    As often as possible.

    Your battery has a limited number of full discharge / full charge cycles. However this number is reduced when you let the battery go flat, as this shocks the battery.

    Topping it up whenever you are comfortably near a charger will prolong its life.

    You cannot overcharge the device, and there is no harm in using it while plugged in.
     
  4. reppans macrumors member

    Joined:
    Dec 2, 2006
  5. Virinprew, Jul 23, 2012
    Last edited: Jul 23, 2012

    Virinprew macrumors 6502

    Joined:
    Apr 24, 2012
    #5
    I want my iPad to be ready for all-day usage every time I pick it up. What is the point of 10-hour battery if you find yourself with 50% battery iPad most of the time?
    Besides, the battery in iPad count each fraction of charge as a fraction, not full charge. You can charge as many time as you want. But completely drain your iPad will permanently shorten its life.
     
  6. nixiemaiden macrumors 6502a

    Joined:
    Jun 21, 2010
    #6
    I usually charge mine a little bit after I get my 5% warning. If I was taking it out and knew that I needed it all day, I would probably plug it in every night but since it is at home all the time, if the battery gets low I just plug it in and leave it that way overnight...unless it is fully charged before I go to bed.
     
  7. ixodes macrumors 601

    ixodes

    Joined:
    Jan 11, 2012
    Location:
    Pacific Coast, USA
    #7
    Just charge the bloody thing!

    If you're that concerned try educating yourself at Apple.com

    You'd be surprised at all the great info they provide for those who bother to look. They also have videos for those too lazy to read.

    Isn't Apple Brilliant...ha...ha...ha :D
     
  8. greygray macrumors 68000

    greygray

    Joined:
    Oct 22, 2009
    #8
    I always charge mine when the batt % shows 15-20%.
     
  9. TurnTronics macrumors member

    Joined:
    Jun 15, 2012
    Location:
    Cincinnati, OH
    #9
    Here is some information on Apple's website about iPad batteries.

    http://www.apple.com/batteries/ipad.html

    Personally, I let my iPad drain to about 10% and charge it when I use it regularly. I let it completely drain till it powers off about every other month and then fully charge it. Here is a quote taken straight from Apple's website:

    "Exercise Your Machine
    Lithium-ion polymer batteries need to be used for maximum performance. If you don’t use your device often, be sure to complete a charge cycle at least once a month."
     
  10. quasinormal, Jul 23, 2012
    Last edited: Jul 23, 2012

    quasinormal macrumors 6502a

    Joined:
    Oct 26, 2007
    Location:
    Sydney, Australia.
    #10
    Cycling doesn't mean a complete discharge.

    When Apple says complete one charge cycle per month, they are not telling you to discharge the battery completely. If you deplete your battery to 50% and recharge you have half a cycle. Do the same again and you'll have a complete cycle.

    http://support.apple.com/kb/HT1519
     
  11. takeshi74 macrumors 601

    Joined:
    Feb 9, 2011
    #11
    Apple's site has pages on battery care. You don't have to look all over the internet. As always, when researching, consider the source.
     
  12. kokhean macrumors regular

    Joined:
    Dec 30, 2010
    #12
    Charge it at about 20%. Even with that little juice left, it can last you for at least one hour and more.
     
  13. SandboxGeneral Moderator

    SandboxGeneral

    Staff Member

    Joined:
    Sep 8, 2010
    Location:
    Orbiting a G-type Main Sequence Star
    #13
    I put mine on the charger every night when I go to sleep. Sometimes it's low on power other times it not.
     
  14. TB07-NJ macrumors 68020

    Joined:
    Jul 7, 2008
    Location:
    US of A
    #14
    I don't think it ever "goes flat" even at 0%. If it is like the circuitry in most cell phones when it says "0" and shuts down it's really at 15-20% for exactly the reason you stated. I think the batteries specs are intentionally underrated.
     
  15. BiggAW macrumors 68020

    Joined:
    Jun 19, 2010
    Location:
    Connecticut
    #15
    Seriously? You missed the most relevant: somewhere around 15-40%. I.e. whenever it needs a charge. That's a week or two for me, while my iPhone usually ends up getting a booster charge in the car or at my desk midday, and always gets a charge every night.
     
  16. Nezben macrumors newbie

    Joined:
    Jul 19, 2012
    #16
    Bad poll options.

    I would vote 'between 0% and 20%'
     
  17. dchao macrumors 6502a

    Joined:
    May 20, 2008
    #17
    Lithium Ion battery doesn't go flat, but as the voltage falls below 3.0V, iPad's onboard circuit will cut itself off. This is to prevent the Lithium Ion battery go into the Over-discharging state.

    If you let the discharge continues to about 2.70V/cell or lower, the battery’s protection circuit will kick in, and put the battery into the sleep mode (yep, 0V output from the battery terminals). This will render the battery unserviceable.

    The correct way to charge your Lithium Ion battery is to charge it as soon as possible and as often as possible. Only do a full discharge/recharge when the battery indicator is no longer accurate (self calibrating)
     
  18. plucky duck macrumors 6502

    Joined:
    Jan 5, 2012
    #18
    Usually nightly, sometimes every second night. I don't ever bother myself with things like this. What's the realistic difference between best practice and worst practice? In all honesty, I might get rid of this in 1-2yrs time for the next best iPad down the road, so selfishly speaking it won't really be my problem to deal with.
     
  19. bushido Suspended

    bushido

    Joined:
    Mar 26, 2008
    Location:
    Germany
    #19
    i charge it every 2nd night or so because it's taking forever to recharge and i dont want to run out in the middle of the day
     
  20. iEvolution macrumors 65816

    Joined:
    Jul 11, 2008
    #20
    To summarize:
    - lower voltage charging increases life span but decreases max capacity per charge
    - heat is an enemy of longevity that is largely unavoidable, especially in devices that get warm during operation and those devices where the battery is not removable
    - ultra fast chargers should be avoided
    - wireless chargers add heat to the charging process
    - the shorter the discharge the longer the battery will last, frequent charging is better than waiting for the battery to get low.
     
  21. TroyBoy30 macrumors 68000

    TroyBoy30

    Joined:
    Jun 9, 2009
    Location:
    Atlanta GA
    #21
    i recharge mine at the end of each week whatever its at. once a month or so i make sure to drain it to 0
     
  22. Sven11 macrumors 6502a

    Joined:
    Sep 25, 2010
    #22
    I recharge it at 0% and wait until it is at 100%.
     
  23. bushido Suspended

    bushido

    Joined:
    Mar 26, 2008
    Location:
    Germany
    #23
    thats the worst u can do to be honest
     
  24. Vantage Point macrumors 65816

    Joined:
    Mar 1, 2010
    Location:
    New Jersey
    #24
    I only have an iPad2 and thus did not vote. But, I generally charge mine when the battery is below 30% and I know I will not need it for many hours to let it get a full charge.
     
  25. miamialley macrumors 68030

    miamialley

    Joined:
    Jul 28, 2008
    Location:
    Los Angeles, CA
    #25
    As per APPLE: http://www.apple.com/batteries/ipad.html

    "For proper reporting of the battery’s state of charge, be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down)."
     

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