MacBook Air M1 2020 Laptop Charging

Someone told me that I should keep my MacBook Air M1 plugged in even after it's fully charged to 100%. They said this will help maintain battery health by not increasing the charge cycle count and the battery lifetime also health percentage. Is this true?

Posted on May 28, 2024 2:10 AM

Reply
Question marked as Top-ranking reply

Posted on May 28, 2024 10:28 AM

If you have macOS configured with "Optimized Charging" (default configuration), then it is fine to leave the power adapter connected all the time since macOS will exercise the battery for you, otherwise if you do not have macOS configured this way, then you are responsible for manually exercising the battery from time to time.

If battery charging is paused or on hold on your Mac - Apple Support


Batteries - Maximizing Performance - Apple


About battery health management in Mac laptops - Apple Support


FYI, battery cycles is mostly irrelevant unless they are nearing 1,000 cycles which would indicate the battery is nearing the end of its expected life (usually). The only other time the charge cycles have any impact is on a battery warranty repair, otherwise just ignore the charge cycles. Here is another post where I have written a bit more detail about the Battery's "Maximum Capacity" value Apple decided to show to users only beginning with macOS 13.x+ so most people are not fully aware of how this value works over time:

Battery Health draining fast -- explanation by hwtech - Apple Community


5 replies
Question marked as Top-ranking reply

May 28, 2024 10:28 AM in response to sohailk33

If you have macOS configured with "Optimized Charging" (default configuration), then it is fine to leave the power adapter connected all the time since macOS will exercise the battery for you, otherwise if you do not have macOS configured this way, then you are responsible for manually exercising the battery from time to time.

If battery charging is paused or on hold on your Mac - Apple Support


Batteries - Maximizing Performance - Apple


About battery health management in Mac laptops - Apple Support


FYI, battery cycles is mostly irrelevant unless they are nearing 1,000 cycles which would indicate the battery is nearing the end of its expected life (usually). The only other time the charge cycles have any impact is on a battery warranty repair, otherwise just ignore the charge cycles. Here is another post where I have written a bit more detail about the Battery's "Maximum Capacity" value Apple decided to show to users only beginning with macOS 13.x+ so most people are not fully aware of how this value works over time:

Battery Health draining fast -- explanation by hwtech - Apple Community


May 28, 2024 6:29 AM in response to sohailk33

sohailk33 wrote:

Someone told me that I should keep my MacBook Air M1 plugged in even after it's fully charged to 100%. They said this will help maintain battery health by not increasing the charge cycle count and the battery lifetime also health percentage. Is this true?

You can leave the computer plugged in whenever necessary or convenient to do so. Leaving the computer plugged in will not damage the computer or the battery. Leaving the computer plugged in will reduce the rate of accumulation of battery cycles.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

MacBook Air M1 2020 Laptop Charging

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.