Q: when using an external monitor with a macbook pro (clamshell mode) does the macbook have to stay plugged in to AC in order for the monitor to maintain display? And if so, how does that affect the battery to remain healthy?
when using an external monitor with a macbook pro (clamshell mode) does the macbook have to stay plugged in to AC in order for the external monitor to maintain display? And if so, how does that affect the battery to remain healthy (since you aren't supposed to keep it plugged in after it reaches 100%)?
MacBook Pro (13-inch Mid 2012), iOS 6.1.4
Posted on Sep 7, 2013 8:31 PM
The short answer...
...yes, you have to keep the power adapter plugged in to use the external monitor.
If you're using your MacBook Pro with th external monitor and the computer plugged in, you needn't worry about the computer 'overcharging' - it won't and it can't. I use my MacBook Pro plugged into my Apple Thunderbolt Display 97% of the time. I have a reminder set every two weeks to disconnect from mains and let the battery run down to 30-40% and then plug it back up. My battery health is still at 99% even after using this method for well over a year now.
Clinton
Posted on Sep 10, 2013 7:16 AM