Calibrating replacement battery MBP 2012

Discussion in 'MacBook Pro' started by sir.riel, Apr 29, 2015.

  1. sir.riel macrumors member

    Joined:
    Apr 29, 2015
    Location:
    Cambodia
    #1
    Hi I've done the research and am aware that the unibody MBP do not need battery calibration, altho i have read some sites that state calibration maybe needed the first time for brand new MBPs, i guess this is debatable?

    Anyways in my case I had to replace my mid 2012 battery because it died on me, so i bought a new battery from apple and replaced it myself, it now has 69 cycles but the thought of calibration came to mind, since this battery is a replacement, and the system and battery someway/somehow need to be calibrated for proper reading. currently my battery health fluctuates between 93% - 92% with an average FCC of 5350mAh. My previous battery had about 650 cycles and held a consistent health of 96%.

    So my question is, what are the procedures in calibrating the battery for the unibody? Do I follow the same steps as the MBP with replaceable batteries?
     
  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    No, it's not debatable. 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.
    Your battery is fine. It is perfectly normal if your battery health (maximum capacity) is more or less than 100%, even when brand new, or if it fluctuates up or down over time. The gradual decline is not in a straight line downward, and it may decline more rapidly at some times and slower at others. For further details, read the CHECKING STATUS AND HEALTH section of the following link.
    No, you don't need to calibrate your battery.

    The link below should answer most, if not all, of your battery/charging questions, including tips for maximizing battery performance. If you haven’t already done so, I highly recommend you take the time to read it.
     
  3. sir.riel thread starter macrumors member

    Joined:
    Apr 29, 2015
    Location:
    Cambodia
    #3
    thanks for the quick response, yes i was doing some research and stumbled on that link. I just wanted to know if I needed to calibrate the new battery with my system. I guess I have nothing to worry about. Thanks.
     

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