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So I just replaced my old swollen battery in my laptop with this new battery: MacBook Pro 15" Retina (Mid 2015) Battery Is it good for the new battery if I keep the laptop plugged in its charger all the time? I.e. use the laptop as a desktop? TIA.
This usage should be fine. I would, however, recommend plugging out the laptop and using the battery until the percentage indicator gets to 30% about once a month. After the battery gets to 30%, you can plug the laptop back in.