One of the concerns that many of face with Laptop devices is that their battery needs to be replaced when N number of charging cycle is completed.

One great thing about MacBooks are that their battery lasts long, much longer than the other competitors in market - but still it has a lifespan and you should use it wisely.

What is a battery cycle?

When you consume your MacBook battery without being plugged-in to power, every % of battery that goes down adds to the loss in charge and when this count reaches to 100%

Example of a battery cycle:

  • Your battery is at 100%, you remove your power supply.

  • After some use your battery goes to 75% (that's 25% = 0.25 of a a cycle)

  • You charge it to 100% again.

  • You unplug it again and battery goes down too 55% (that's previous 25 + 45 = 70% i.e. 0.7 of a cycle)

  • You charge it to 70%.

  • You unplug it again and battery goes down 40% (that's previous 70% + 30% = 100% = 1 full battery cycle)

How to identify how many battery cycles your MacBook have completed?

  • Click on the Apple icon on your Menu bar: 

  • Now select About this Mac

  • Click on System Report

  • Now under Hardware select Power and look under Health Information, you would see something like this,

 Health Information:

  Cycle Count: 83

  Condition: Normal

  Maximum Capacity: 97%

As you can see my MacBook has completed 83 full battery change/discharge cycle and is at 97% of its maximum capacity.

The recent MacBooks are rated for 1000 charge cycle before they reach to 80% capacity.