7 Is Your Mac Always on? Give It a Break
Trust us, we understand the appeal of having your MacBook on all the time, and easy to pop back on at a moment’s notice. But for a great Mac lifespan, you really need to turn off everything completely (and take it off the charger) at regular intervals to give everything a rest.
You might not realize that your Mac uses energy even when the screen is off and/or when it’s hibernating. Years of use without regular breaks can lead to expanding batteries, which will wreak havoc on the chassis and internal components of your Mac (or any device for that matter). So don’t leave your MacBook plugged-in for hours or days after it’s been fully charged, and try to power down your Mac every day.
There are also a lot of customization options in Energy Saver. Take a look at them, and choose the options that help your MacBook take a break whenever possible.