Apple watch charging

Discussion in 'Apple Watch' started by realtyknep, Apr 5, 2015.

  1. realtyknep macrumors newbie

    Joined:
    Mar 21, 2015
    #1
    If you leave be charger on all night, say 8 hours, will the battery be damaged over time considering it fully charges in 2.5 hours?
     
  2. spades1412 macrumors 6502

    Joined:
    Jun 12, 2009
    #2
    no, the battery will be just fine after an overnight charge.
     
  3. Mr.C macrumors 601

    Joined:
    Apr 3, 2011
    Location:
    London, UK.
    #3
    No it will be just fine just like other devices like the iPhone and iPad.
     
  4. Patriot24 macrumors 68030

    Patriot24

    Joined:
    Dec 29, 2010
    Location:
    California
    #4
    Apple has done some incredible engineering in their charging solutions to avoid damaging battery capacity.

    I was reading somewhere the other day that iOS devices charge to something like 105%, allows it to drop to 95%, and then charges to 100%. Not sure if that is completely accurate, but I'm incline to believe that there's more going on than meets the eye to preserve battery life.
     
  5. pythagorasuk macrumors member

    Joined:
    Jan 3, 2010
    #5
    You can't charge a battery to 105% capacity in the same way you can't fill a glass to 105% capacity.
     
  6. Multiverse223 macrumors regular

    Joined:
    Mar 16, 2015
    #6
    Yeah to say Apple hasn't thought of this long ago is just ridiculous.

    ----------

    Gas can capacity says 5 gal and it holds over that. Why does it hold over that? To allow space for pressure, less chance of spilling, etc...
     
  7. 8CoreWhore macrumors 68020

    8CoreWhore

    Joined:
    Jan 17, 2008
    Location:
    Big D
    #7
    Today's batteries have microchips in them that monitor health, etc, and prevent over charging or excessive drain.
     
  8. madsci954 macrumors 68030

    Joined:
    Oct 14, 2011
    Location:
    Ohio
    #8
    Batteries aren't 100% efficient (actually, nothing is). You always have to put in extra charge.
     
  9. Julien macrumors G3

    Julien

    Joined:
    Jun 30, 2007
    Location:
    Atlanta
    #9
    Actually the analogy is not quite correct. In most types of batteries like lead acid and alkaline this would be more correct. However Lit-ion's are more like balloons than glasses. You can always add a little more charge until they burst (catch fire). This is why they MUST have complex system monitoring circuits in the charging system to determine the best/safest cut off for discharging and charging points.
     
  10. Presonance macrumors regular

    Presonance

    Joined:
    Aug 31, 2010
    #10
    This is the right idea. The numbers are more like "charge to" 96% and "discharge to" 94%. All while the phone displays 100% (it would consider 94% to be 100% and scale the rest of the meter equally).

    The main takeaway is that the phone is very intelligent about taking care of the lithium cells. Users do not have to worry about disconnecting the charger when the device hits 100.
     
  11. Armen macrumors 604

    Armen

    Joined:
    Apr 30, 2013
    Location:
    127.0.0.1
    #11
    I stated that in a thread :) and it is true.
     
  12. ardchoille50 macrumors 68020

    Joined:
    Feb 6, 2014
    #12
    I don't think pressure and/or spillage going to be a concern with a Lithium battery :)
     
  13. Multiverse223 macrumors regular

    Joined:
    Mar 16, 2015
    #13
    You get the point haha...
     
  14. Newtons Apple macrumors Pentium

    Newtons Apple

    Joined:
    Mar 12, 2014
    Location:
    Jacksonville, Florida
    #14
    You can always set the alarm for 2.5 hours so you can wake up and remove your watch from the charger. Problem is that you will need to set another alarm to put it back on charge a hour or two before you wake. :rolleyes:



    :D
     

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