You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Battery going down when charging

Hi,


my recently purchased Macbook Air 2020 is plugged in all the time to a power source. I noticed that battery is going down from 99-100% to 92-96% and then it goes back up. What is this and why is the battery not at 100% all the time when plugged in? Why is it fluctuating even though notebook is charging all the time? Thank you

MacBook Air 13″, macOS 10.15

Posted on Jun 3, 2020 2:15 AM

Reply
Question marked as Top-ranking reply

Posted on Jun 3, 2020 3:21 AM

Hi,

Resetting SMC could solve the issue.

https://support.apple.com/en-us/HT201295

Also note about Mac notebook batteries.

https://support.apple.com/en-us/HT204054


1 reply

Battery going down when charging

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