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Kraizelburg

macrumors 6502
Original poster
Nov 10, 2018
434
108
Spain
Hi, I am sure this has been asked before but I cannot find any consensus on whether it is bad for battery lifespan to leave my MBP 13 plugged in all the time or not.

Thanks
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
32,039
11,759
California

Expos of 1969

Contributor
Aug 25, 2013
3,266
6,172
If it is truly plugged in all the time then it seems you don't need the battery so it doesn't matter. My early 2013 MBP has been plugged in for 99% of its life and the battery still works ok when I take it offsite to use.
 
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Kraizelburg

macrumors 6502
Original poster
Nov 10, 2018
434
108
Spain
If it is truly plugged in all the time then it seems you don't need the battery so it doesn't matter. My early 2013 MBP has been plugged in for 99% of its life and the battery still works ok when I take it offsite to use.
Well to be honest I keep it plugged when I'm on my desk or at home then unplug it when I go to sleep.
 

Expos of 1969

Contributor
Aug 25, 2013
3,266
6,172
I unplug mine every time I put it to sleep (a few times a day and overnight) and only plug it in when using it. Who knows how these batteries really age or degrade 😳
 

iPhonagain

macrumors regular
Dec 28, 2009
116
24
Indy
As a Windows Sys Admin I've seen a few laptops that had dead batteries with users who only used the docking station at work and home. Then after a year of two when they needed to use their laptop on battery, found it didn't work/hold a charge.
Funny thing is I never had a MacBook have that issue. I think maybe Apple uses higher quality parts than Windows vendors....
 

lambertjohn

macrumors 65816
Jun 17, 2012
1,433
1,378
Always discharge your battery to about 15% at least once a month. I've done that with all my Apple notebooks and never had an issue with a single battery. My 2010 MBP still holds a 6-7 hour charge.
 
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