how long should battery last when fully charged on a 2020 MacBook Air?
How long should my battery last when fully charged on my 2020 MacBook Air?
MacBook Air 11″, macOS 10.12
It will depend on what you will be doing with this notebook. For example streaming an HD movie or using some other heavy CPU use app. Also are you referring to the 2020 M1 or Intel MacBook Air?
You can see for yourself with the following links: