Let's settle this once and for all: Should I leave my Macbook Pro (or any Macbook, really) plugged in?

kgvlmd wrote:

… I'd rather hear an asnwer from an Apple tech and not some 3rd party.

Well, kgvlmd. Apple isn’t actually here. Certainly no «Apple tech[s]».

Just us, fellow («3rd party») users.

However, with a bit of searching one can find Apple documents letting you know that the Mac (and iDevices) do a great job of managing their own Batteries.

You’ve done well in not allowing your device to discharge below about 20%.

It is actually good to use your device plugged in at 100%, while you are using it.

It doesn’t even hurt to have it plugged in at 100% while you are not using it: your device will not overcharge your Battery.

However. Don’t take my word for it. Look up the Apple documents on the subject.

I'd rather hear an asnwer from an Apple tech and not some 3rd party.

Well, since everyone here is just a third party user, I suggest you contact Apple to get an answer from an Apple tech. You can use the Get Support link in the upper right corner on this page - you will be dealing with Apple employees after going through a triage.

FWIW, Apple support quite often refers customers to these forums - the level of knowledge in these forums is nothing short of astounding. I've been here for about 20 years and I still learn something every day.

Hi kgvlmd,

There is an interesting, older discussion on this that seems to cover your questions:

https://discussions.apple.com/thread/4030293

Apple has tips on Maximising Battery Life and Lifespan:

https://www.apple.com/batteries/maximizing-performance/

Article says: f you store it fully charged for an extended period of time, the battery may lose some capacity, leading to shorter battery life. (Doesn't seem to say anything about leaving MaxBook plugged in all the time though.)