1 Reply Latest reply: Sep 17, 2012 7:39 PM by steve359
Hamid.s.g. Level 1 (0 points)

When I have finished charging my Macbook pro (battery is at 100%), and am now using my laptop, should I use it while plugged into the A/C or should I used the power from the battery? I am asking in terms of what is better for battery's longterm health.

  • steve359 Level 6 (13,332 points)

    Batteries have finite "cycles".  If you use the battery down to 50% and recharge twice, that is equals 1 full cycle.

     

    You can safely run your MBP on battery power for long periods, as long as you run it on battery at least once per month down to 40% and recharge.

     

    But do NOT run your battery dead.  That will shorten the life of the battery.