I am about to replace the old battery on MacBook Pro 13" Early 2011 (A1278) with a battery Model No: A1322 and I wonder if there are any special instructions on how the battery should be used for the first time?

Should it be fully charged for the first time? How many times should I do that?

What are the general recommendations for keeping the battery life as long as possible?

1 Answer 1


The battery include a so-called "fuel gauge" chip that keeps track of the charge level, health status and individual cell balance. This chips is providing the battery level measurement that is displayed by OS X. As a result, you may install a new battery without consideration of its current charge level -- whatever the charge level actually is, it will be correctly reported by the battery chip to the OS.

As for all LiPo batteries, the main recommendation is to avoid regular deep discharges. There is no memory effect -- deep discharges degrade the chemistry and reduce the battery life, so try to keep your computer plugged as often as practical. An exception to this rule would be long-term storage of the computer. In this case, a charge level of about 50% is preferred (as per Apple recommendations).

  • Thus having LiPo battery in it, MBP can be constantly plugged to the power source with no negative impact on battery!? Nov 30, 2015 at 15:32
  • @VolodymyrM. yes. The exception would for for long term storage. In such case a charge level of 50% is preferable. Answer edited to reflect this.
    – abey
    Nov 30, 2015 at 15:35
  • Nitpick: For LiPo should it read lithium-polymer, Li-ion, or lithium-ion? Feb 24, 2017 at 2:43

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