Is it Bad to Leave My MacBook Charging Overnight?

Want to know, “Is it Bad to Leave My MacBook Charging Overnight”  Well, As long as it is in good working order, you can keep your MacBook Pro plugged in overnight. It is not a good idea to leave the machine plugged in overnight if your battery has any damage, suggested by extreme heat or swelling.

Is it Bad to Leave My MacBook Charging Overnight?

Is it Bad to Leave My MacBook Charging Overnight?
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The most critical aspect in preserving the health of the battery is to change the use, sometimes running the charge all the way down and alternating AC and battery use.

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Charging MacBook Pro Laptops

Modern MacBook Pro models charge rapidly until the battery is 80% of its power, and then the charging slows so that the last 20 percent of the battery receives just a trickle of electricity. This gives you a fast charge for immediate use, thus allowing you to keep the machine plugged in for long periods of time.

Lengthy Charge

Your MacBook will not be affected by an overnight charge, but your battery will lose the ability to last as long as it should per charge if you usually run it with the power cord plugged in. In this case, use the battery-operated device until it runs down at least once a month and then recharge it to full capacity until the next use of the battery.


Place it in sleep mode or turn it off if you leave your MacBook plugged in overnight unless you need it on for a particular reason, such as a big download that you’re running overnight. Due to processor operation during the night, putting the MacBook in sleep mode or powering it off decreases the chance of overheating. If you run it overnight on AC power, always position the machine on a stable, flat surface that allows ventilation underneath the computer and on the back, as well as on all sides of the power adapter.


If, after you leave it plugged in overnight, your MacBook pro becomes unusually hot, unplug it and allow it to cool down, then take it to a certified Apple repair specialist. Usually, this is not a problem with modern MacBooks, but older MacBook batteries can degrade over time, and unnecessary heat can be produced by long charges. If your MacBook has a removable battery, as most pre-2009 models do, for safer overnight charging, you can swap the battery yourself.

Also Read: How to Stop iTunes from Opening When iPhone is Connected

Well, this was all about ‘’Is it bad to leave my MacBook Charging overnight’’. The above information will surely help you to know how to charge Your MacBook. Some People getting a “Battery Service Required” Warning on Battery Icon after Installing macOS Big Sur if you also encountering with same then check this thread from Apple Forum.