If you fully charge your MacBook to 100% and then use up the battery, this is a charging cycle. If you charge your MacBook to 100% when the battery is 50% remaining, it will be counted as a charging cycle when the battery is less than 50%.
All MacBook batteries have the same limited number of charge cycles as other portable devices using lithium-ion batteries. Once the equipment battery exceeds the maximum number of charging cycles, the battery begins to deteriorate, and it is time to consider replacing the battery.
So how do you check the number of battery charging cycles on the Mac?
1. Hold down the Option key on the keyboard and click the Apple logo on the menu bar.
2. Click "System Information" at the top of the menu, and then find the "Power" button in the sidebar.
3. Finally, find "Health Information" in "Battery Status"
4. Here you can see the number of battery cycles of Mac. The following are the maximum battery cycles of various MacBook provided by Apple. You might as well refer to it. After these cycles, you can consider changing the battery.
1000 cycles
MacBook (retina, 12 inch, 20 16 early)
MacBook (retina, 12 inch, early 20 15)
MacBook (13 inch, 20 10 year)
MacBook (13 inch, late 2009)
MacBook Pro (retina, 13 inch, early 20 15)
MacBook Pro (retina, 13 inches, 20 14 years)
MacBook Pro (retina, 13 inch, end of 20 13)
MacBook Pro (retina, 13 inch, 20 13 early)
MacBook Pro (retina, 13 inch, end of 20 12)
MacBook Pro (13 inch, 20 12 years)
MacBook Pro (13 inch, later 20 1 1)
MacBook Pro (13 inch, 20 1 1)
MacBook Pro (13 inch, 20 10 year)
MacBook Pro (13 inch, mid-2009)
MacBook Pro (retina, 15 inches, 20 15 years)
MacBook Pro (retina, 15 inch, 20 14 years)
MacBook Pro (retina, 15 inch, end of 20 13)
MacBook Pro (retina, 15 inch, 20 13 early)
MacBook Pro (Retina，Mid 20 12)
MacBook Pro (15 inch, 20 12 years)
MacBook Pro (15 inch, later 20 1 1)
MacBook Pro (15 inch, 20 1 1)
MacBook Pro (15 inch, 20 10 year)
MacBook Pro (15 inch, 2.53 GHz, mid-2009)
MacBook Pro (15 inch, mid-2009)
MacBook Pro (17 inch, later 20 1 1)
MacBook Pro (17 inch, 20 1 1)
MacBook Pro (17 inch, 20 10 year)
MacBook Pro (17 inch, mid-2009)
MacBook Pro (17 inch, early 2009)
MacBook Air (1 1 inch, early 20 15)
MacBook Air (1 1 inch, early 20 14)
MacBook Air (1 1 inch, 20 13 years)
MacBook Air (1 1 inch, 20 12 years)
MacBook Air (1 1 inch, Mid 20 1 1)
MacBook Air (1 1 inch, end of 20 10)
MacBook Air (13 inch, early 20 15)
MacBook Air (13 inch, early 20 14)
MacBook Air (13 inch, 20 13 years)
MacBook Air (13 inch, 20 12 years)
MacBook Air (13 inch, Mid 20 1 1)
MacBook Air (13 inch, end of 20 10)
500 cycles
Macbook air (mid-2009)
MacBook (13 inch aluminum alloy, late 2008)
MacBook Pro (15 inch end of 2008)
300 cycles
Macbook (mid-2009)
Macbook (early 2009)
Macbook (end of 2008)
Macbook (early 2008)
Macbook (end of 2007)
Macbook (mid-2007)
Macbook (end of 2006)
MacBook (13 inch)
MacBook Pro (15 inch, early 2008)
MacBook Pro (15 inch, 2.4/2.2GHz)
MacBook Pro (15 inch, Core 2 Duo)
MacBook Pro (15-inch mirror)
MacBook Pro (15 inch)
MacBook Pro (17 inch, end of 2008)
MacBook Pro (17 inch, early 2008)
MacBook Pro (17 inch, 2.4GHz)
MacBook Pro (17-inch Core 2 Duo)
MacBook Pro (17 inch)
Macbook air (late 2008)
Apple laptop