4 Replies Latest reply: Oct 28, 2013 12:00 PM by dominic23
HRuso Level 1 Level 1 (0 points)

Hi,

 

Do we need to fully charge before turning the newly bought macbook air? Do you recommend fully charging for the first time before first boot for "healthy" battery?


MacBook Air
  • dominic23 Level 7 Level 7 (29,825 points)

    Charging battery for the first time

    Quoting from below linked article

    Your New Notebook

    "Be sure to fully charge your portable when you plug it in for the first time, and then run Software Update to ensure you have the latest software."

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

  • HRuso Level 1 Level 1 (0 points)

    Thanks dominic23. Its not 100% clear actually. Should I charge fully before turning the device on or it doesn't really matter if the device is on while charging?

  • PlotinusVeritas Level 6 Level 6 (14,705 points)

    ~~Should I charge fully before turning the device on or it doesn't really matter if the device is on while charging?

     

    It doesnt matter either way, charge while on, or charge it and turn it on. Most people just turn on their new notebook first time and plug it in to install things, and use their computer for a while first time.

     

     

    Keep it plugged in when near a socket so you keep the charging cycles DOWN on your LiPo (lithium polymer) cells / battery.

     

    *Contrary to some myths out there, there is protection circuitry in your macbook and therefore you cannot 'overcharge' it when plugged in and already fully charged

    If you leave your macbook plugged in all the time, take it off charge and drain the battery down to 15 or 20% every couple of weeks or so.

     

    LiPo (lithium polymer, same as in your macbook) batteries do not need conditioning. However...

     

    LiPo batteries do NOT like to be dropped down to 15% or so often,....key word being "often"

     

    A lot of battery experts call the use of LiPo cells the "80% Rule" ....meaning use 80% of the charge or so,.. then recharge them for longer overall life.

     

    Never let your Macbook die from power, you can corrupt files that way, and the batteries do not like it.

    **Also new evidence suggests that sudden loss of power can adversely affect data on a SSD (solid state drive).....again, dont let it ever shut down from total power loss

     

     

     

     

    The only quantified abuse seen to LiPo cells is instances when  often the cells are repeatedly drained very low.

     

    Contrary to what some might say, LIPo batteries have an "ideal" break in period. First ten cycles or so, don't discharge down past 40% of the battery's capacity.

     

    Same way you dont take a new car out and speed and rev the engine hard first 100 or so miles.

     

     

     

    *Also, if youre going to store your macbook away for a few weeks or more,... make sure it has at least a 50% or so charge.

     

    *Cycle count / use/ lifespan is one thing that cant be countered.

     

     

     

    Proper treatment is another thing. Just because LiPo batteries dont need conditioning in general,.. does NOT mean they dont have an ideal use / recharge environment. Anything can be abused even if it doesnt need conditioning.

     

    Just use and enjoy your new macbook, 

     

    From Apple on batteries:

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

     

    http://support.apple.com/kb/HT1446

     

    but really all you would keep in mind is --"consider 20% is the same as 0% and recharge it"

     

    and best "tip" is if its near a socket, .....plug it in as long as you can (especially at home) since cycle count on the battery are the "miles that wear out the tires (battery)"

  • dominic23 Level 7 Level 7 (29,825 points)

    HRuso wrote:

     

    Should I charge fully before turning the device on?

    Yes. Charge the battery upto 100% before turning the Mac on.

     

    It is better to follow the suggestion by Apple.

     

    Best.