How to Optimize Battery Life on a MacBook (7 Steps)

Charge your MacBook by connecting it to a power adapter until the onscreen indicator bar on your Desktop reaches 100 percent and the light on your adapter cord is green.
Continue charging your MacBook for at least two hours after you reach a full charge. You can use your MacBook during the two-hour period, but don't unplug it.
Unplug your MacBook, allowing it to run using the battery power. You will need to let the battery run completely down, so it is a good idea to save your work.
Continue using your MacBook---or leave it on---until the battery gets low and you see the warning dialog box pop up. Do not plug in your MacBook.
Allow your computer to automatically go to sleep and subsequently turn itself off.
Leave your computer turned off for at least five hours.
Reconnect your MacBook to the power adapter and charge it until it is full.
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