One question about iBook batteries

Discussion in 'PowerPC Macs' started by iAFC, Oct 4, 2005.

  1. iAFC macrumors member

    Sep 24, 2005
    sul do brasil
    Hello everybody,

    I wanna know if when the power adapter is connected to an iBook, does the battery starts to charge automatically? If it does, wouldn't it affect the battery life?

  2. dcv macrumors G3

    May 24, 2005
    It will only charge if the battery is less than about 94% full, so as to avoid short charge cycles and therefore prolong the battery life. hope this helps.
  3. wordmunger macrumors 603


    Sep 3, 2003
    North Carolina
    Just to give some real-world perspective on this:

    I'm tough on my batteries. I don't do any of the battery maintenance "tricks" like running them all the way down or not charging them when they're only partially depleted. I plug in when it's convenient and I run on batteries when it's convenient. Generally my batteries last about 2 years before they start to have difficulty holding a charge. When I can't get a good solid hour and a half of real-world battery use, I buy a new battery. For me, $100 every couple of years is worth not sweating if I'm going to wear out my battery whenever I plug/unplug my iBook. Generally after 4 years I'm going to replace the computer anyway, so I've only ever replaced the battery on a given laptop once.
  4. aquajet macrumors 68020

    Feb 12, 2005
    That sounds about right. I'm the same with my PowerBook battery, I just charge or discharge whenever it's more convenient. However I do deplete the battery and recharge fully every few weeks.
  5. rhb1899 macrumors member


    Oct 4, 2005
    Hi there, I was reading this thread hoping it would cover a question of mine...

    What ARE the proper "tricks" for taking care of your battery? can you just leave your laptop plugged in all the time? Should your shut your laptop down at all or just leave it in sleep?
  6. iEdd macrumors 68000


    Aug 8, 2005
    The best is to use as little cycles (full charge, full discharge) as possible, though keeping it calibrated. So probably leave it sleeping whilst plugged in. Once a month run it on battery until it automatically puts itself to sleep, then fully charge it. :)
  7. mad jew Moderator emeritus

    mad jew

    Apr 3, 2004
    Adelaide, Australia

    Apple has a very informative Support Page that you may be interested in. :)

    The "ideal" usage is actually similar to what wordmunger does. It's fine to leave the laptop plugged in to the power so long as you take it off every now and then. Plus, it'd be great if you could run it down once a month and then charge it fully up again.

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