Constant power on the MBP

[okizen]

Is there anything wrong with leaving the MBP constantly connected to the mains power or would it (eventually) wear the battery down?

 

[simsaladimbamba]

You should use your MBP on battery every once in a while.

______________________________________________________
This should answer most, if not all, of your battery questions:
Apple Notebook Battery FAQ by GGJstudios
The F.A.Q. includes the following topics:

• BATTERY INFORMATION
• BATTERY LIFE FROM A CHARGE
• AC POWER
• CALIBRATION
• BATTERY LIFESPAN
• CHECKING STATUS AND HEALTH
• CHARGING
• WHAT IS A CYCLE?
• BATTERIES ARE NOT COVERED
• BULGING OR SWELLING BATTERY

______________________________________________________​

 

[miles01110]

Is there anything wrong with leaving the MBP constantly connected to the mains power or would it (eventually) wear the battery down?

Your battery will eventually wear down anyways. Use it how you want to use it.

 

[Murgatroyd314]

I did this with my Powerbook for several months about 6 years ago, and the first time I tried to use it on battery afterwards, the charge was depleted in about ten minutes. It did recover most of its capacity with continued use over the next few months, but was never quite what it had been.

 

[-Hackintosh-]

From what I've heard, the newer macbook pro's don't really have a problem when doing that. That being said however, it might be a good idea to use battery power some as well. I've also heard that if you do use it on power for long periods of time that it's good to drain the battery at least once a month.