Replace with 67% battery health?

Discussion in 'MacBook' started by macmesser, Jul 2, 2013.

  1. macmesser macrumors 6502a

    Joined:
    Aug 13, 2012
    Location:
    Long Island, NY USA
    #1
    I just calibrated my Macbook's (intel dual '09) battery as I was getting a service battery warning. iStat reports 100% charge, 67% battery health. Can I just kep using it this way or should I replace? I mostly use it with power adapter.

    Thanks for any help.
     
  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    The "Service Battery" warning comes on when the battery health drops below 80%. Just because the battery drops below 80% health doesn't mean it's not usable. As long as it holds a charge long enough to suit your purposes, you can continue to use it. Also, the built-in batteries in the newer Mac unibody notebooks come pre-calibrated and do not require regular calibration like the removable batteries in older Apple notebooks.

    The link below should answer most, if not all, of your battery/charging questions. If you haven't already done so, I highly recommend you take the time to read it.
     
  3. macmesser thread starter macrumors 6502a

    Joined:
    Aug 13, 2012
    Location:
    Long Island, NY USA
    #3
    Thanks. Will check it out.
     
  4. vistadude macrumors 65816

    Joined:
    Jan 3, 2010
    #4
    You can keep it that way but you might want to replace it if the battery life becomes poor or you plan on keeping that notebook for a long time.
     

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