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Intelligent Battery - Leave on charge?

Discussion in 'MacBook Air' started by MattZani, Jul 24, 2011.

  1. macrumors 68020


    Now that Apple is fitting MacBook Airs with intelligent batteries (Unsure how long they have but this is my first) can the charger be left in most of the time? Just wondering if now when the battery is at 100% that the MBA runs straight off the charger skipping the battery all together?
  2. macrumors member

  3. macrumors 68020


    Aaaand to quote your link...

    Guess thats my answer, my 08 MBP would discharge 3% and recharge that 3% to keep the battery active, but it was a different battery.
  4. macrumors newbie

    From Apple's website:

    To allow the adapter to recharge the battery to 100%, simply allow the charge to drop below 93%. The adapter will automatically recharge the battery to 100%.

    Isn't there some sort of application, or some option to force the MBA to run on A/C power?
  5. macrumors member

    Please read the part about "AC Power". Apple says to deplete the battery once every other two days or something.
  6. macrumors 68020


    Yeah thats fine, its just I had my MBP on charge probably all evening, then once every few days I would move away from the charger until it died, then it would stay plugged in again. As the Air is a lot more portable it will probably be unplugged most evenings for an hour or two, just wondered if me sitting here typing this at 100% with the charger plugged in is bad? Or should I be letting it run down?
  7. macrumors member

    Shouldn't be a problem no.
  8. macrumors 601


    You can leave it plugged in like that, it's not going to hurt anything. My 08 MacBook stays plugged in most of the time and after 220 cycles, it's still at 92% health, with Apple only saying it was supposed to last 300 cycles. I believe all the new ones are supposed to be good for 1000 cycles.
  9. macrumors member

    Not for my Macbook Pro 2009. I killed 2 of the batteries on my macbook pro because I leave it plugged in 24 x 7. The battery die in around 1 year. After 100% charge, the battery will last for.....5 mins.

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